/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by The HDF Group. * * Copyright by the Board of Trustees of the University of Illinois. * * All rights reserved. * * * * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * * the COPYING file, which can be found at the root of the source code * * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * * If you do not have access to either file, you may request a copy from * * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: H5MF.c * Jul 11 1997 * Robb Matzke * * Purpose: File memory management functions. * *------------------------------------------------------------------------- */ /****************/ /* Module Setup */ /****************/ #define H5F_FRIEND /*suppress error about including H5Fpkg */ #define H5FS_FRIEND /*suppress error about including H5Fpkg */ #include "H5MFmodule.h" /* This source code file is part of the H5MF module */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5Eprivate.h" /* Error handling */ #include "H5Fpkg.h" /* File access */ #include "H5FSpkg.h" /* File free space */ #include "H5Iprivate.h" /* IDs */ #include "H5MFpkg.h" /* File memory management */ #include "H5VMprivate.h" /* Vectors and arrays */ /****************/ /* Local Macros */ /****************/ #define H5MF_FSPACE_SHRINK 80 /* Percent of "normal" size to shrink serialized free space size */ #define H5MF_FSPACE_EXPAND 120 /* Percent of "normal" size to expand serialized free space size */ #define H5MF_CHECK_FSM(FSM, CF) \ if(!H5F_addr_defined(FSM->addr) || !H5F_addr_defined(FSM->sect_addr)) \ *CF = TRUE; /******************/ /* Local Typedefs */ /******************/ /* Enum for kind of free space section+aggregator merging allowed for a file */ typedef enum { H5MF_AGGR_MERGE_SEPARATE, /* Everything in separate free list */ H5MF_AGGR_MERGE_DICHOTOMY, /* Metadata in one free list and raw data in another */ H5MF_AGGR_MERGE_TOGETHER /* Metadata & raw data in one free list */ } H5MF_aggr_merge_t; /* User data for section info iterator callback for iterating over free space sections */ typedef struct { H5F_sect_info_t *sects; /* section info to be retrieved */ size_t sect_count; /* # of sections requested */ size_t sect_idx; /* the current count of sections */ } H5MF_sect_iter_ud_t; /********************/ /* Package Typedefs */ /********************/ /********************/ /* Local Prototypes */ /********************/ /* Allocator routines */ static haddr_t H5MF__alloc_pagefs(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size); /* "File closing" routines */ static herr_t H5MF__close_aggrfs(H5F_t *f); static herr_t H5MF__close_pagefs(H5F_t *f); static herr_t H5MF__close_shrink_eoa(H5F_t *f); /* General routines */ static herr_t H5MF__get_free_sects(H5F_t *f, H5FS_t *fspace, H5MF_sect_iter_ud_t *sect_udata, size_t *nums); static hbool_t H5MF__fsm_type_is_self_referential(H5F_t *f, H5F_mem_page_t fsm_type); static hbool_t H5MF__fsm_is_self_referential(H5F_t *f, H5FS_t *fspace); static herr_t H5MF__continue_alloc_fsm(H5F_t *f, H5FS_t *sm_hdr_fspace, H5FS_t *sm_sinfo_fspace, H5FS_t *lg_hdr_fspace, H5FS_t *lg_sinfo_fspace, hbool_t *continue_alloc_fsm); /* Free-space type manager routines */ static herr_t H5MF__create_fstype(H5F_t *f, H5F_mem_page_t type); static herr_t H5MF__close_fstype(H5F_t *f, H5F_mem_page_t type); static herr_t H5MF__delete_fstype(H5F_t *f, H5F_mem_page_t type); static herr_t H5MF__close_delete_fstype(H5F_t *f, H5F_mem_page_t type); /* Callbacks */ static herr_t H5MF__sects_cb(H5FS_section_info_t *_sect, void *_udata); /*********************/ /* Package Variables */ /*********************/ /* Package initialization variable */ hbool_t H5_PKG_INIT_VAR = FALSE; /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /*------------------------------------------------------------------------- * Function: H5MF_init_merge_flags * * Purpose: Initialize the free space section+aggregator merge flags * for the file. * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * Friday, February 1, 2008 * *------------------------------------------------------------------------- */ herr_t H5MF_init_merge_flags(H5F_t *f) { H5MF_aggr_merge_t mapping_type; /* Type of free list mapping */ H5FD_mem_t type; /* Memory type for iteration */ hbool_t all_same; /* Whether all the types map to the same value */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* check args */ HDassert(f); HDassert(f->shared); HDassert(f->shared->lf); /* Iterate over all the free space types to determine if sections of that type * can merge with the metadata or small 'raw' data aggregator */ all_same = TRUE; for(type = H5FD_MEM_DEFAULT; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) /* Check for any different type mappings */ if(f->shared->fs_type_map[type] != f->shared->fs_type_map[H5FD_MEM_DEFAULT]) { all_same = FALSE; break; } /* end if */ /* Check for all allocation types mapping to the same free list type */ if(all_same) { if(f->shared->fs_type_map[H5FD_MEM_DEFAULT] == H5FD_MEM_DEFAULT) mapping_type = H5MF_AGGR_MERGE_SEPARATE; else mapping_type = H5MF_AGGR_MERGE_TOGETHER; } /* end if */ else { /* Check for raw data mapping into same list as metadata */ if(f->shared->fs_type_map[H5FD_MEM_DRAW] == f->shared->fs_type_map[H5FD_MEM_SUPER]) mapping_type = H5MF_AGGR_MERGE_SEPARATE; else { hbool_t all_metadata_same; /* Whether all metadata go in same free list */ /* One or more allocation type don't map to the same free list type */ /* Check if all the metadata allocation types map to the same type */ all_metadata_same = TRUE; for(type = H5FD_MEM_SUPER; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) /* Skip checking raw data free list mapping */ /* (global heap is treated as raw data) */ if(type != H5FD_MEM_DRAW && type != H5FD_MEM_GHEAP) { /* Check for any different type mappings */ if(f->shared->fs_type_map[type] != f->shared->fs_type_map[H5FD_MEM_SUPER]) { all_metadata_same = FALSE; break; } /* end if */ } /* end if */ /* Check for all metadata on same free list */ if(all_metadata_same) mapping_type = H5MF_AGGR_MERGE_DICHOTOMY; else mapping_type = H5MF_AGGR_MERGE_SEPARATE; } /* end else */ } /* end else */ /* Based on mapping type, initialize merging flags for each free list type */ switch(mapping_type) { case H5MF_AGGR_MERGE_SEPARATE: /* Don't merge any metadata together */ HDmemset(f->shared->fs_aggr_merge, 0, sizeof(f->shared->fs_aggr_merge)); /* Check if merging raw data should be allowed */ /* (treat global heaps as raw data) */ if(H5FD_MEM_DRAW == f->shared->fs_type_map[H5FD_MEM_DRAW] || H5FD_MEM_DEFAULT == f->shared->fs_type_map[H5FD_MEM_DRAW]) { f->shared->fs_aggr_merge[H5FD_MEM_DRAW] = H5F_FS_MERGE_RAWDATA; f->shared->fs_aggr_merge[H5FD_MEM_GHEAP] = H5F_FS_MERGE_RAWDATA; } /* end if */ break; case H5MF_AGGR_MERGE_DICHOTOMY: /* Merge all metadata together (but not raw data) */ HDmemset(f->shared->fs_aggr_merge, H5F_FS_MERGE_METADATA, sizeof(f->shared->fs_aggr_merge)); /* Allow merging raw data allocations together */ /* (treat global heaps as raw data) */ f->shared->fs_aggr_merge[H5FD_MEM_DRAW] = H5F_FS_MERGE_RAWDATA; f->shared->fs_aggr_merge[H5FD_MEM_GHEAP] = H5F_FS_MERGE_RAWDATA; break; case H5MF_AGGR_MERGE_TOGETHER: /* Merge all allocation types together */ HDmemset(f->shared->fs_aggr_merge, (H5F_FS_MERGE_METADATA | H5F_FS_MERGE_RAWDATA), sizeof(f->shared->fs_aggr_merge)); break; default: HGOTO_ERROR(H5E_RESOURCE, H5E_BADVALUE, FAIL, "invalid mapping type") } /* end switch */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5MF_init_merge_flags() */ /*------------------------------------------------------------------------- * Function: H5MF__alloc_to_fs_type * * Purpose: Map "alloc_type" to the free-space manager type * * Return: Success: non-negative * Failure: negative * * Programmer: Vailin Choi; Nov 2016 * *------------------------------------------------------------------------- */ void H5MF__alloc_to_fs_type(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5F_mem_page_t *fs_type) { FUNC_ENTER_PACKAGE_NOERR HDassert(f); HDassert(fs_type); if(H5F_PAGED_AGGR(f)) { /* paged aggregation */ if(size >= f->shared->fs_page_size) { if(H5F_HAS_FEATURE(f, H5FD_FEAT_PAGED_AGGR)) { /* multi or split driver */ /* For non-contiguous address space, map to large size free-space manager for each alloc_type */ if(H5FD_MEM_DEFAULT == f->shared->fs_type_map[alloc_type]) *fs_type = (H5F_mem_page_t) (alloc_type + (H5FD_MEM_NTYPES - 1)); else *fs_type = (H5F_mem_page_t) (f->shared->fs_type_map[alloc_type] + (H5FD_MEM_NTYPES - 1)); } /* end if */ else /* For contiguous address space, map to generic large size free-space manager */ *fs_type = H5F_MEM_PAGE_GENERIC; /* H5F_MEM_PAGE_SUPER */ } /* end if */ else *fs_type = (H5F_mem_page_t)H5MF_ALLOC_TO_FS_AGGR_TYPE(f, alloc_type); } /* end if */ else /* non-paged aggregation */ *fs_type = (H5F_mem_page_t)H5MF_ALLOC_TO_FS_AGGR_TYPE(f, alloc_type); FUNC_LEAVE_NOAPI_VOID } /* end H5MF__alloc_to_fs_type() */ /*------------------------------------------------------------------------- * Function: H5MF__open_fstype * * Purpose: Open an existing free space manager of TYPE for file by * creating a free-space structure. * Note that TYPE can be H5F_mem_page_t or H5FD_mem_t enum types. * * Return: Success: non-negative * Failure: negative * * Programmer: Quincey Koziol * koziol@hdfgroup.org * Jan 8 2008 * *------------------------------------------------------------------------- */ herr_t H5MF__open_fstype(H5F_t *f, H5F_mem_page_t type) { const H5FS_section_class_t *classes[] = { /* Free space section classes implemented for file */ H5MF_FSPACE_SECT_CLS_SIMPLE, H5MF_FSPACE_SECT_CLS_SMALL, H5MF_FSPACE_SECT_CLS_LARGE }; hsize_t alignment; /* Alignment to use */ hsize_t threshold; /* Threshold to use */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t fsm_ring; /* Ring of FSM */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE_TAG(H5AC__FREESPACE_TAG) /* * Check arguments. */ HDassert(f); if(H5F_PAGED_AGGR(f)) HDassert(type < H5F_MEM_PAGE_NTYPES); else { HDassert((H5FD_mem_t)type < H5FD_MEM_NTYPES); HDassert((H5FD_mem_t)type != H5FD_MEM_NOLIST); } /* end else */ HDassert(f->shared); HDassert(H5F_addr_defined(f->shared->fs_addr[type])); HDassert(f->shared->fs_state[type] == H5F_FS_STATE_CLOSED); /* Set up the alignment and threshold to use depending on the manager type */ if(H5F_PAGED_AGGR(f)) { alignment = (type == H5F_MEM_PAGE_GENERIC) ? f->shared->fs_page_size : (hsize_t)H5F_ALIGN_DEF; threshold = H5F_ALIGN_THRHD_DEF; } /* end if */ else { alignment = f->shared->alignment; threshold = f->shared->threshold; } /* end else */ /* Set the ring type in the API context */ if(H5MF__fsm_type_is_self_referential(f, type)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); /* Open an existing free space structure for the file */ if(NULL == (f->shared->fs_man[type] = H5FS_open(f, f->shared->fs_addr[type], NELMTS(classes), classes, f, alignment, threshold))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize free space info") /* Set the state for the free space manager to "open", if it is now */ if(f->shared->fs_man[type]) f->shared->fs_state[type] = H5F_FS_STATE_OPEN; done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__open_fstype() */ /*------------------------------------------------------------------------- * Function: H5MF__create_fstype * * Purpose: Create free space manager of TYPE for the file by creating * a free-space structure * Note that TYPE can be H5F_mem_page_t or H5FD_mem_t enum types. * * Return: Success: non-negative * Failure: negative * * Programmer: Quincey Koziol * koziol@hdfgroup.org * Jan 8 2008 * *------------------------------------------------------------------------- */ static herr_t H5MF__create_fstype(H5F_t *f, H5F_mem_page_t type) { const H5FS_section_class_t *classes[] = { /* Free space section classes implemented for file */ H5MF_FSPACE_SECT_CLS_SIMPLE, H5MF_FSPACE_SECT_CLS_SMALL, H5MF_FSPACE_SECT_CLS_LARGE }; H5FS_create_t fs_create; /* Free space creation parameters */ hsize_t alignment; /* Alignment to use */ hsize_t threshold; /* Threshold to use */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t fsm_ring; /* Ring of FSM */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG) /* * Check arguments. */ HDassert(f); if(H5F_PAGED_AGGR(f)) HDassert(type < H5F_MEM_PAGE_NTYPES); else { HDassert((H5FD_mem_t)type < H5FD_MEM_NTYPES); HDassert((H5FD_mem_t)type != H5FD_MEM_NOLIST); } /* end else */ HDassert(f->shared); HDassert(!H5F_addr_defined(f->shared->fs_addr[type])); HDassert(f->shared->fs_state[type] == H5F_FS_STATE_CLOSED); /* Set the free space creation parameters */ fs_create.client = H5FS_CLIENT_FILE_ID; fs_create.shrink_percent = H5MF_FSPACE_SHRINK; fs_create.expand_percent = H5MF_FSPACE_EXPAND; fs_create.max_sect_addr = 1 + H5VM_log2_gen((uint64_t)f->shared->maxaddr); fs_create.max_sect_size = f->shared->maxaddr; /* Set up alignment and threshold to use depending on TYPE */ if(H5F_PAGED_AGGR(f)) { alignment = (type == H5F_MEM_PAGE_GENERIC) ? f->shared->fs_page_size : (hsize_t)H5F_ALIGN_DEF; threshold = H5F_ALIGN_THRHD_DEF; } /* end if */ else { alignment = f->shared->alignment; threshold = f->shared->threshold; } /* end else */ /* Set the ring type in the API context */ if(H5MF__fsm_type_is_self_referential(f, type)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); if(NULL == (f->shared->fs_man[type] = H5FS_create(f, NULL, &fs_create, NELMTS(classes), classes, f, alignment, threshold))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize free space info") /* Set the state for the free space manager to "open", if it is now */ if(f->shared->fs_man[type]) f->shared->fs_state[type] = H5F_FS_STATE_OPEN; done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__create_fstype() */ /*------------------------------------------------------------------------- * Function: H5MF__start_fstype * * Purpose: Open or create a free space manager of a given TYPE. * Note that TYPE can be H5F_mem_page_t or H5FD_mem_t enum types. * * Return: Success: non-negative * Failure: negative * * Programmer: Quincey Koziol * koziol@hdfgroup.org * Jan 8 2008 * *------------------------------------------------------------------------- */ herr_t H5MF__start_fstype(H5F_t *f, H5F_mem_page_t type) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE_TAG(H5AC__FREESPACE_TAG) /* * Check arguments. */ HDassert(f); HDassert(f->shared); if(H5F_PAGED_AGGR(f)) HDassert(type < H5F_MEM_PAGE_NTYPES); else { HDassert((H5FD_mem_t)type < H5FD_MEM_NTYPES); HDassert((H5FD_mem_t)type != H5FD_MEM_NOLIST); } /* end else */ /* Check if the free space manager exists already */ if(H5F_addr_defined(f->shared->fs_addr[type])) { /* Open existing free space manager */ if(H5MF__open_fstype(f, type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTOPENOBJ, FAIL, "can't initialize file free space") } /* end if */ else { /* Create new free space manager */ if(H5MF__create_fstype(f, type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTCREATE, FAIL, "can't initialize file free space") } /* end else */ done: FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__start_fstype() */ /*------------------------------------------------------------------------- * Function: H5MF__delete_fstype * * Purpose: Delete the free-space manager as specified by TYPE. * Note that TYPE can be H5F_mem_page_t or H5FD_mem_t enum types. * * Return: Success: non-negative * Failure: negative * * Programmer: Vailin Choi; April 2013 * *------------------------------------------------------------------------- */ static herr_t H5MF__delete_fstype(H5F_t *f, H5F_mem_page_t type) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t fsm_ring = H5AC_RING_INV; /* Ring of FSM */ haddr_t tmp_fs_addr; /* Temporary holder for free space manager address */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG) /* check args */ HDassert(f); if(H5F_PAGED_AGGR(f)) HDassert(type < H5F_MEM_PAGE_NTYPES); else HDassert((H5FD_mem_t)type < H5FD_MEM_NTYPES); HDassert(H5F_addr_defined(f->shared->fs_addr[type])); /* Put address into temporary variable and reset it */ /* (Avoids loopback in file space freeing routine) */ tmp_fs_addr = f->shared->fs_addr[type]; f->shared->fs_addr[type] = HADDR_UNDEF; /* Shift to "deleting" state, to make certain we don't track any * file space freed as a result of deleting the free space manager. */ f->shared->fs_state[type] = H5F_FS_STATE_DELETING; /* Set the ring type in the API context */ if(H5MF__fsm_type_is_self_referential(f, type)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Before deleting free space manager\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Delete free space manager for this type */ if(H5FS_delete(f, tmp_fs_addr) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "can't delete free space manager") /* Shift [back] to closed state */ HDassert(f->shared->fs_state[type] == H5F_FS_STATE_DELETING); f->shared->fs_state[type] = H5F_FS_STATE_CLOSED; /* Sanity check that the free space manager for this type wasn't started up again */ HDassert(!H5F_addr_defined(f->shared->fs_addr[type])); done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__delete_fstype() */ /*------------------------------------------------------------------------- * Function: H5MF__close_fstype * * Purpose: Close the free space manager of TYPE for file * Note that TYPE can be H5F_mem_page_t or H5FD_mem_t enum types. * * Return: Success: non-negative * Failure: negative * * Programmer: Vailin Choi; July 1st, 2009 * *------------------------------------------------------------------------- */ static herr_t H5MF__close_fstype(H5F_t *f, H5F_mem_page_t type) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG) /* * Check arguments. */ HDassert(f); if(H5F_PAGED_AGGR(f)) HDassert(type < H5F_MEM_PAGE_NTYPES); else HDassert((H5FD_mem_t)type < H5FD_MEM_NTYPES); HDassert(f->shared); HDassert(f->shared->fs_man[type]); HDassert(f->shared->fs_state[type] != H5F_FS_STATE_CLOSED); #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Before closing free space manager\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Close an existing free space structure for the file */ if(H5FS_close(f, f->shared->fs_man[type]) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't release free space info") f->shared->fs_man[type] = NULL; f->shared->fs_state[type] = H5F_FS_STATE_CLOSED; done: FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__close_fstype() */ /*------------------------------------------------------------------------- * Function: H5MF__add_sect * * Purpose: To add a section to the specified free-space manager. * * Return: Success: non-negative * Failure: negative * * Programmer: Vailin Choi; April 2013 * *------------------------------------------------------------------------- */ herr_t H5MF__add_sect(H5F_t *f, H5FD_mem_t alloc_type, H5FS_t *fspace, H5MF_free_section_t *node) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t fsm_ring = H5AC_RING_INV; /* Ring of FSM */ H5MF_sect_ud_t udata; /* User data for callback */ H5F_mem_page_t fs_type; /* Free space type (mapped from allocation type) */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE_TAG(H5AC__FREESPACE_TAG) HDassert(f); HDassert(fspace); HDassert(node); H5MF__alloc_to_fs_type(f, alloc_type, node->sect_info.size, &fs_type); /* Construct user data for callbacks */ udata.f = f; udata.alloc_type = alloc_type; udata.allow_sect_absorb = TRUE; udata.allow_eoa_shrink_only = FALSE; /* Set the ring type in the API context */ if(H5MF__fsm_is_self_referential(f, fspace)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: adding node, node->sect_info.addr = %a, node->sect_info.size = %Hu\n", FUNC, node->sect_info.addr, node->sect_info.size); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Add the section */ if(H5FS_sect_add(f, fspace, (H5FS_section_info_t *)node, H5FS_ADD_RETURNED_SPACE, &udata) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINSERT, FAIL, "can't re-add section to file free space") done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__add_sect() */ /*------------------------------------------------------------------------- * Function: H5MF__find_sect * * Purpose: To find a section from the specified free-space manager to fulfill the request. * If found, re-add the left-over space back to the manager. * * Return: TRUE if a section is found to fulfill the request * FALSE if not * * Programmer: Vailin Choi; April 2013 * *------------------------------------------------------------------------- */ htri_t H5MF__find_sect(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size, H5FS_t *fspace, haddr_t *addr) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t fsm_ring = H5AC_RING_INV; /* Ring of FSM */ H5MF_free_section_t *node; /* Free space section pointer */ htri_t ret_value = FAIL; /* Whether an existing free list node was found */ FUNC_ENTER_PACKAGE_TAG(H5AC__FREESPACE_TAG) HDassert(f); HDassert(fspace); /* Set the ring type in the API context */ if(H5MF__fsm_is_self_referential(f, fspace)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); /* Try to get a section from the free space manager */ if((ret_value = H5FS_sect_find(f, fspace, size, (H5FS_section_info_t **)&node)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "error locating free space in file") #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: section found = %t\n", FUNC, ret_value); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Check for actually finding section */ if(ret_value) { /* Sanity check */ HDassert(node); /* Retrieve return value */ if(addr) *addr = node->sect_info.addr; /* Check for eliminating the section */ if(node->sect_info.size == size) { #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: freeing node\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Free section node */ if(H5MF__sect_free((H5FS_section_info_t *)node) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node") } /* end if */ else { /* Adjust information for section */ node->sect_info.addr += size; node->sect_info.size -= size; #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: re-adding node, node->sect_info.size = %Hu\n", FUNC, node->sect_info.size); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Re-add the section to the free-space manager */ if(H5MF__add_sect(f, alloc_type, fspace, node) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINSERT, FAIL, "can't re-add section to file free space") } /* end else */ } /* end if */ done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__find_sect() */ /*------------------------------------------------------------------------- * Function: H5MF_alloc * * Purpose: Allocate SIZE bytes of file memory and return the relative * address where that contiguous chunk of file memory exists. * The TYPE argument describes the purpose for which the storage * is being requested. * * Return: Success: The file address of new chunk. * Failure: HADDR_UNDEF * * Programmer: Robb Matzke * matzke@llnl.gov * Jul 11 1997 * *------------------------------------------------------------------------- */ haddr_t H5MF_alloc(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size) { H5AC_ring_t fsm_ring = H5AC_RING_INV; /* free space manager ring */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5F_mem_page_t fs_type; /* Free space type (mapped from allocation type) */ haddr_t ret_value = HADDR_UNDEF; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, HADDR_UNDEF) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: alloc_type = %u, size = %Hu\n", FUNC, (unsigned)alloc_type, size); #endif /* H5MF_ALLOC_DEBUG */ /* check arguments */ HDassert(f); HDassert(f->shared); HDassert(f->shared->lf); HDassert(size > 0); H5MF__alloc_to_fs_type(f, alloc_type, size, &fs_type); #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Check 1.0\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Set the ring type in the API context */ if(H5MF__fsm_type_is_self_referential(f, fs_type)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); /* Check if we are using the free space manager for this file */ if(H5F_HAVE_FREE_SPACE_MANAGER(f)) { /* We are about to change the contents of the free space manager -- * notify metadata cache that the associated fsm ring is * unsettled */ if(H5AC_unsettle_ring(f, fsm_ring) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_SYSTEM, HADDR_UNDEF, "attempt to notify cache that ring is unsettled failed") /* Check if the free space manager for the file has been initialized */ if(!f->shared->fs_man[fs_type] && H5F_addr_defined(f->shared->fs_addr[fs_type])) { /* Open the free-space manager */ if(H5MF__open_fstype(f, fs_type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTOPENOBJ, HADDR_UNDEF, "can't initialize file free space") HDassert(f->shared->fs_man[fs_type]); } /* end if */ /* Search for large enough space in the free space manager */ if(f->shared->fs_man[fs_type]) if(H5MF__find_sect(f, alloc_type, size, f->shared->fs_man[fs_type], &ret_value) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "error locating a node") } /* end if */ /* If no space is found from the free-space manager, continue further action */ if(!H5F_addr_defined(ret_value)) { #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Check 2.0\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ if(f->shared->fs_strategy == H5F_FSPACE_STRATEGY_PAGE) { HDassert(f->shared->fs_page_size >= H5F_FILE_SPACE_PAGE_SIZE_MIN); if(HADDR_UNDEF == (ret_value = H5MF__alloc_pagefs(f, alloc_type, size))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "allocation failed from paged aggregation") } /* end if */ else { /* For non-paged aggregation, continue further action */ if(HADDR_UNDEF == (ret_value = H5MF_aggr_vfd_alloc(f, alloc_type, size))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "allocation failed from aggr/vfd") } /* end else */ } /* end if */ HDassert(H5F_addr_defined(ret_value)); #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Check 3.0\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving: ret_value = %a, size = %Hu\n", FUNC, ret_value, size); #endif /* H5MF_ALLOC_DEBUG */ #ifdef H5MF_ALLOC_DEBUG_DUMP H5MF__sects_dump(f, stderr); #endif /* H5MF_ALLOC_DEBUG_DUMP */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF_alloc() */ /*------------------------------------------------------------------------- * Function: H5MF__alloc_pagefs * * Purpose: Allocate space from either the large or small free-space manager. * For "large" request: * Allocate request from VFD * Determine mis-aligned fragment and return the fragment to the * appropriate manager * For "small" request: * Allocate a page from the large manager * Determine whether space is available from a mis-aligned fragment * being returned to the manager * Return left-over space to the manager after fulfilling request * * Return: Success: The file address of new chunk. * Failure: HADDR_UNDEF * * Programmer: Vailin Choi; Dec 2012 * *------------------------------------------------------------------------- */ static haddr_t H5MF__alloc_pagefs(H5F_t *f, H5FD_mem_t alloc_type, hsize_t size) { H5F_mem_page_t ptype; /* Free-space manager type */ H5MF_free_section_t *node = NULL; /* Free space section pointer */ haddr_t ret_value = HADDR_UNDEF; /* Return value */ FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: alloc_type = %u, size = %Hu\n", FUNC, (unsigned)alloc_type, size); #endif /* H5MF_ALLOC_DEBUG */ H5MF__alloc_to_fs_type(f, alloc_type, size, &ptype); switch(ptype) { case H5F_MEM_PAGE_GENERIC: case H5F_MEM_PAGE_LARGE_BTREE: case H5F_MEM_PAGE_LARGE_DRAW: case H5F_MEM_PAGE_LARGE_GHEAP: case H5F_MEM_PAGE_LARGE_LHEAP: case H5F_MEM_PAGE_LARGE_OHDR: { haddr_t eoa; /* EOA for the file */ hsize_t frag_size = 0; /* Fragment size */ /* Get the EOA for the file */ if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, alloc_type))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, HADDR_UNDEF, "Unable to get eoa") HDassert(!(eoa % f->shared->fs_page_size)); H5MF_EOA_MISALIGN(f, (eoa+size), f->shared->fs_page_size, frag_size); /* Allocate from VFD */ if(HADDR_UNDEF == (ret_value = H5F__alloc(f, alloc_type, size + frag_size, NULL, NULL))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't allocate file space") /* If there is a mis-aligned fragment at EOA */ if(frag_size) { /* Start up the free-space manager */ if(!(f->shared->fs_man[ptype])) if(H5MF__start_fstype(f, ptype) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, HADDR_UNDEF, "can't initialize file free space") /* Create free space section for the fragment */ if(NULL == (node = H5MF__sect_new(H5MF_FSPACE_SECT_LARGE, ret_value + size, frag_size))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, HADDR_UNDEF, "can't initialize free space section") /* Add the fragment to the large free-space manager */ if(H5MF__add_sect(f, alloc_type, f->shared->fs_man[ptype], node) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINSERT, HADDR_UNDEF, "can't re-add section to file free space") node = NULL; } /* end if */ } break; case H5F_MEM_PAGE_META: case H5F_MEM_PAGE_DRAW: case H5F_MEM_PAGE_BTREE: case H5F_MEM_PAGE_GHEAP: case H5F_MEM_PAGE_LHEAP: case H5F_MEM_PAGE_OHDR: { haddr_t new_page; /* The address for the new file size page */ /* Allocate one file space page */ if(HADDR_UNDEF == (new_page = H5MF_alloc(f, alloc_type, f->shared->fs_page_size))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't allocate file space") /* Start up the free-space manager */ if(!(f->shared->fs_man[ptype])) if(H5MF__start_fstype(f, ptype) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, HADDR_UNDEF, "can't initialize file free space") HDassert(f->shared->fs_man[ptype]); if(NULL == (node = H5MF__sect_new(H5MF_FSPACE_SECT_SMALL, (new_page + size), (f->shared->fs_page_size - size)))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, HADDR_UNDEF, "can't initialize free space section") /* Add the remaining space in the page to the manager */ if(H5MF__add_sect(f, alloc_type, f->shared->fs_man[ptype], node) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINSERT, HADDR_UNDEF, "can't re-add section to file free space") node = NULL; /* Insert the new page into the Page Buffer list of new pages so we don't read an empty page from disk */ if(f->shared->page_buf != NULL && H5PB_add_new_page(f, alloc_type, new_page) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINSERT, HADDR_UNDEF, "can't add new page to Page Buffer new page list") ret_value = new_page; } break; case H5F_MEM_PAGE_NTYPES: case H5F_MEM_PAGE_DEFAULT: default: HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, HADDR_UNDEF, "can't allocate file space: unrecognized type") break; } /* end switch */ done: #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving: ret_value = %a, size = %Hu\n", FUNC, ret_value, size); #endif /* H5MF_ALLOC_DEBUG */ #ifdef H5MF_ALLOC_DEBUG_DUMP H5MF__sects_dump(f, stderr); #endif /* H5MF_ALLOC_DEBUG_DUMP */ /* Release section node, if allocated and not added to section list or merged */ if(node) if(H5MF__sect_free((H5FS_section_info_t *)node) < 0) HDONE_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, HADDR_UNDEF, "can't free section node") FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__alloc_pagefs() */ /*------------------------------------------------------------------------- * Function: H5MF_alloc_tmp * * Purpose: Allocate temporary space in the file * * Note: The address returned is non-overlapping with any other address * in the file and suitable for insertion into the metadata * cache. * * The address is _not_ suitable for actual file I/O and will * cause an error if it is so used. * * The space allocated with this routine should _not_ be freed, * it should just be abandoned. Calling H5MF_xfree() with space * from this routine will cause an error. * * Return: Success: Temporary file address * Failure: HADDR_UNDEF * * Programmer: Quincey Koziol * Thursday, June 4, 2009 * *------------------------------------------------------------------------- */ haddr_t H5MF_alloc_tmp(H5F_t *f, hsize_t size) { haddr_t eoa; /* End of allocated space in the file */ haddr_t ret_value = HADDR_UNDEF; /* Return value */ FUNC_ENTER_NOAPI(HADDR_UNDEF) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: size = %Hu\n", FUNC, size); #endif /* H5MF_ALLOC_DEBUG */ /* check args */ HDassert(f); HDassert(f->shared); HDassert(f->shared->lf); HDassert(size > 0); /* Retrieve the 'eoa' for the file */ if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, H5FD_MEM_DEFAULT))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, HADDR_UNDEF, "driver get_eoa request failed") /* Compute value to return */ ret_value = f->shared->tmp_addr - size; /* Check for overlap into the actual allocated space in the file */ if(H5F_addr_le(ret_value, eoa)) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, HADDR_UNDEF, "driver get_eoa request failed") /* Adjust temporary address allocator in the file */ f->shared->tmp_addr = ret_value; done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5MF_alloc_tmp() */ /*------------------------------------------------------------------------- * Function: H5MF_xfree * * Purpose: Frees part of a file, making that part of the file * available for reuse. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * matzke@llnl.gov * Jul 17 1997 * *------------------------------------------------------------------------- */ herr_t H5MF_xfree(H5F_t *f, H5FD_mem_t alloc_type, haddr_t addr, hsize_t size) { H5F_mem_page_t fs_type; /* Free space type (mapped from allocation type) */ H5MF_free_section_t *node = NULL; /* Free space section pointer */ unsigned ctype; /* section class type */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t fsm_ring; /* Ring of FSM */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Entering - alloc_type = %u, addr = %a, size = %Hu\n", FUNC, (unsigned)alloc_type, addr, size); #endif /* H5MF_ALLOC_DEBUG */ /* check arguments */ HDassert(f); if(!H5F_addr_defined(addr) || 0 == size) HGOTO_DONE(SUCCEED) HDassert(addr != 0); /* Can't deallocate the superblock :-) */ H5MF__alloc_to_fs_type(f, alloc_type, size, &fs_type); /* Set the ring type in the API context */ if(H5MF__fsm_type_is_self_referential(f, fs_type)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); /* we are about to change the contents of the free space manager -- * notify metadata cache that the associated fsm ring is * unsettled */ /* Only do so for strategies that use free-space managers */ if(H5F_HAVE_FREE_SPACE_MANAGER(f)) if(H5AC_unsettle_ring(f, fsm_ring) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_SYSTEM, FAIL, "attempt to notify cache that ring is unsettled failed") /* Check for attempting to free space that's a 'temporary' file address */ if(H5F_addr_le(f->shared->tmp_addr, addr)) HGOTO_ERROR(H5E_RESOURCE, H5E_BADRANGE, FAIL, "attempting to free temporary file space") /* If it's metadata, check if the space to free intersects with the file's * metadata accumulator */ if(H5FD_MEM_DRAW != alloc_type) { /* Check if the space to free intersects with the file's metadata accumulator */ if(H5F__accum_free(f, alloc_type, addr, size) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "can't check free space intersection w/metadata accumulator") } /* end if */ /* Check if the free space manager for the file has been initialized */ if(!f->shared->fs_man[fs_type]) { /* If there's no free space manager for objects of this type, * see if we can avoid creating one by checking if the freed * space is at the end of the file */ #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: fs_addr = %a\n", FUNC, f->shared->fs_addr[fs_type]); #endif /* H5MF_ALLOC_DEBUG_MORE */ if(!H5F_addr_defined(f->shared->fs_addr[fs_type])) { htri_t status; /* "can absorb" status for section into */ #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Trying to avoid starting up free space manager\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Try to shrink the file or absorb the block into a block aggregator */ if((status = H5MF_try_shrink(f, alloc_type, addr, size)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTMERGE, FAIL, "can't check for absorbing block") else if(status > 0) /* Indicate success */ HGOTO_DONE(SUCCEED) else if(size < f->shared->fs_threshold) { #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: dropping addr = %a, size = %Hu, on the floor!\n", FUNC, addr, size); #endif /* H5MF_ALLOC_DEBUG_MORE */ HGOTO_DONE(SUCCEED) } /* end else-if */ } /* end if */ /* If we are deleting the free space manager, leave now, to avoid * [re-]starting it. * or if file space strategy type is not using a free space manager * (H5F_FSPACE_STRATEGY_AGGR or H5F_FSPACE_STRATEGY_NONE), drop free space * section on the floor. * * Note: this drops the space to free on the floor... * */ if(f->shared->fs_state[fs_type] == H5F_FS_STATE_DELETING || !H5F_HAVE_FREE_SPACE_MANAGER(f)) { #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: dropping addr = %a, size = %Hu, on the floor!\n", FUNC, addr, size); #endif /* H5MF_ALLOC_DEBUG_MORE */ HGOTO_DONE(SUCCEED) } /* end if */ /* There's either already a free space manager, or the freed * space isn't at the end of the file, so start up (or create) * the file space manager */ if(H5MF__start_fstype(f, fs_type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize file free space") } /* end if */ /* Create the free-space section for the freed section */ ctype = H5MF_SECT_CLASS_TYPE(f, size); if(NULL == (node = H5MF__sect_new(ctype, addr, size))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize free space section") /* If size of the freed section is larger than threshold, add it to the free space manager */ if(size >= f->shared->fs_threshold) { HDassert(f->shared->fs_man[fs_type]); #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Before H5FS_sect_add()\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* Add to the free space for the file */ if(H5MF__add_sect(f, alloc_type, f->shared->fs_man[fs_type], node) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINSERT, FAIL, "can't add section to file free space") node = NULL; #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: After H5FS_sect_add()\n", FUNC); #endif /* H5MF_ALLOC_DEBUG_MORE */ } /* end if */ else { htri_t merged; /* Whether node was merged */ H5MF_sect_ud_t udata; /* User data for callback */ /* Construct user data for callbacks */ udata.f = f; udata.alloc_type = alloc_type; udata.allow_sect_absorb = TRUE; udata.allow_eoa_shrink_only = FALSE; /* Try to merge the section that is smaller than threshold */ if((merged = H5FS_sect_try_merge(f, f->shared->fs_man[fs_type], (H5FS_section_info_t *)node, H5FS_ADD_RETURNED_SPACE, &udata)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINSERT, FAIL, "can't merge section to file free space") else if(merged == TRUE) /* successfully merged */ /* Indicate that the node was used */ node = NULL; } /* end else */ done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); /* Release section node, if allocated and not added to section list or merged */ if(node) if(H5MF__sect_free((H5FS_section_info_t *)node) < 0) HDONE_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node") #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving, ret_value = %d\n", FUNC, ret_value); #endif /* H5MF_ALLOC_DEBUG */ #ifdef H5MF_ALLOC_DEBUG_DUMP H5MF__sects_dump(f, stderr); #endif /* H5MF_ALLOC_DEBUG_DUMP */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF_xfree() */ /*------------------------------------------------------------------------- * Function: H5MF_try_extend * * Purpose: Extend a block in the file if possible. * For non-paged aggregation: * --try to extend at EOA * --try to extend into the aggregators * --try to extend into a free-space section if adjoined * For paged aggregation: * --try to extend at EOA * --try to extend into a free-space section if adjoined * --try to extend into the page end threshold if a metadata block * * Return: Success: TRUE(1) - Block was extended * FALSE(0) - Block could not be extended * Failure: FAIL * * Programmer: Quincey Koziol * Friday, June 11, 2004 * *------------------------------------------------------------------------- */ htri_t H5MF_try_extend(H5F_t *f, H5FD_mem_t alloc_type, haddr_t addr, hsize_t size, hsize_t extra_requested) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t fsm_ring; /* Ring of FSM */ haddr_t end; /* End of block to extend */ H5FD_mem_t map_type; /* Mapped type */ H5F_mem_page_t fs_type; /* free space type */ htri_t allow_extend = TRUE; /* Possible to extend the block */ hsize_t frag_size = 0; /* Size of mis-aligned fragment */ htri_t ret_value = FALSE; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Entering: alloc_type = %u, addr = %a, size = %Hu, extra_requested = %Hu\n", FUNC, (unsigned)alloc_type, addr, size, extra_requested); #endif /* H5MF_ALLOC_DEBUG */ /* Sanity check */ HDassert(f); HDassert(H5F_INTENT(f) & H5F_ACC_RDWR); /* Set mapped type, treating global heap as raw data */ map_type = (alloc_type == H5FD_MEM_GHEAP) ? H5FD_MEM_DRAW : alloc_type; /* Compute end of block to extend */ end = addr + size; /* For paged aggregation: * To extend a small block: can only extend if not crossing page boundary * To extend a large block at EOA: calculate in advance mis-aligned fragment so EOA will still end at page boundary */ if(H5F_PAGED_AGGR(f)) { if(size < f->shared->fs_page_size) { /* To extend a small block: cannot cross page boundary */ if((addr / f->shared->fs_page_size) != (((end + extra_requested) - 1) / f->shared->fs_page_size)) allow_extend = FALSE; } /* end if */ else { haddr_t eoa; /* EOA for the file */ /* To extend a large block: calculate in advance the mis-aligned fragment so EOA will end at page boundary if extended */ if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, alloc_type))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "Unable to get eoa") HDassert(!(eoa % f->shared->fs_page_size)); H5MF_EOA_MISALIGN(f, (eoa+extra_requested), f->shared->fs_page_size, frag_size); } /* end else */ } /* end if */ /* Get free space type from allocation type */ H5MF__alloc_to_fs_type(f, alloc_type, size, &fs_type); /* Set the ring type in the API context */ if(H5MF__fsm_type_is_self_referential(f, fs_type)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); if(allow_extend) { /* Try extending the block at EOA */ if((ret_value = H5F__try_extend(f, map_type, end, extra_requested + frag_size)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTEXTEND, FAIL, "error extending file") #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: extended = %t\n", FUNC, ret_value); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* If extending at EOA succeeds: */ /* for paged aggregation, put the fragment into the large-sized free-space manager */ if(ret_value == TRUE && H5F_PAGED_AGGR(f) && frag_size) { H5MF_free_section_t *node = NULL; /* Free space section pointer */ /* Should be large-sized block */ HDassert(size >= f->shared->fs_page_size); /* Start up the free-space manager */ if(!(f->shared->fs_man[fs_type])) if(H5MF__start_fstype(f, fs_type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize file free space") /* Create free space section for the fragment */ if(NULL == (node = H5MF__sect_new(H5MF_FSPACE_SECT_LARGE, end + extra_requested, frag_size))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize free space section") /* Add the fragment to the large-sized free-space manager */ if(H5MF__add_sect(f, alloc_type, f->shared->fs_man[fs_type], node) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINSERT, FAIL, "can't re-add section to file free space") node = NULL; } /* end if */ /* For non-paged aggregation: try to extend into the aggregators */ if(ret_value == FALSE && (f->shared->fs_strategy == H5F_FSPACE_STRATEGY_FSM_AGGR || f->shared->fs_strategy == H5F_FSPACE_STRATEGY_AGGR) ) { H5F_blk_aggr_t *aggr; /* Aggregator to use */ /* Check if the block is able to extend into aggregation block */ aggr = (map_type == H5FD_MEM_DRAW) ? &(f->shared->sdata_aggr) : &(f->shared->meta_aggr); if((ret_value = H5MF__aggr_try_extend(f, aggr, map_type, end, extra_requested)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTEXTEND, FAIL, "error extending aggregation block") #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: H5MF__aggr_try_extend = %t\n", FUNC, ret_value); #endif /* H5MF_ALLOC_DEBUG_MORE */ } /* end if */ /* If no extension so far, try to extend into a free-space section */ if(ret_value == FALSE && ((f->shared->fs_strategy == H5F_FSPACE_STRATEGY_FSM_AGGR) || (H5F_PAGED_AGGR(f))) ) { H5MF_sect_ud_t udata; /* User data */ /* Construct user data for callbacks */ udata.f = f; udata.alloc_type = alloc_type; /* Check if the free space for the file has been initialized */ if(!f->shared->fs_man[fs_type] && H5F_addr_defined(f->shared->fs_addr[fs_type])) /* Open the free-space manager */ if(H5MF__open_fstype(f, fs_type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize file free space") /* Try to extend the block into a free-space section */ if(f->shared->fs_man[fs_type]) { if((ret_value = H5FS_sect_try_extend(f, f->shared->fs_man[fs_type], addr, size, extra_requested, H5FS_ADD_RETURNED_SPACE, &udata)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTEXTEND, FAIL, "error extending block in free space manager") #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Try to H5FS_sect_try_extend = %t\n", FUNC, ret_value); #endif /* H5MF_ALLOC_DEBUG_MORE */ } /* end if */ /* For paged aggregation and a metadata block: try to extend into page end threshold */ if(ret_value == FALSE && H5F_PAGED_AGGR(f) && map_type != H5FD_MEM_DRAW) { H5MF_EOA_MISALIGN(f, end, f->shared->fs_page_size, frag_size); if(frag_size <= H5F_PGEND_META_THRES(f) && extra_requested <= frag_size) ret_value = TRUE; #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Try to extend into the page end threshold = %t\n", FUNC, ret_value); #endif /* H5MF_ALLOC_DEBUG_MORE */ } /* end if */ } /* end if */ } /* allow_extend */ done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving: ret_value = %t\n", FUNC, ret_value); #endif /* H5MF_ALLOC_DEBUG */ #ifdef H5MF_ALLOC_DEBUG_DUMP H5MF__sects_dump(f, stderr); #endif /* H5MF_ALLOC_DEBUG_DUMP */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF_try_extend() */ /*------------------------------------------------------------------------- * Function: H5MF_try_shrink * * Purpose: Try to shrink the size of a file with a block or absorb it * into a block aggregator. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * Feb 14 2008 * *------------------------------------------------------------------------- */ htri_t H5MF_try_shrink(H5F_t *f, H5FD_mem_t alloc_type, haddr_t addr, hsize_t size) { H5MF_free_section_t *node = NULL; /* Free space section pointer */ H5MF_sect_ud_t udata; /* User data for callback */ H5FS_section_class_t *sect_cls; /* Section class */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t fsm_ring = H5AC_RING_INV; /* Ring of FSM */ H5F_mem_page_t fs_type; /* Free space type */ htri_t ret_value = FALSE; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Entering - alloc_type = %u, addr = %a, size = %Hu\n", FUNC, (unsigned)alloc_type, addr, size); #endif /* H5MF_ALLOC_DEBUG */ /* check arguments */ HDassert(f); HDassert(f->shared); HDassert(f->shared->lf); HDassert(H5F_addr_defined(addr)); HDassert(size > 0); /* Set up free-space section class information */ sect_cls = H5MF_SECT_CLS_TYPE(f, size); HDassert(sect_cls); /* Get free space type from allocation type */ H5MF__alloc_to_fs_type(f, alloc_type, size, &fs_type); /* Set the ring type in the API context */ if(H5MF__fsm_type_is_self_referential(f, fs_type)) fsm_ring = H5AC_RING_MDFSM; else fsm_ring = H5AC_RING_RDFSM; H5AC_set_ring(fsm_ring, &orig_ring); /* Create free-space section for block */ if(NULL == (node = H5MF__sect_new(sect_cls->type, addr, size))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize free space section") /* Construct user data for callbacks */ udata.f = f; udata.alloc_type = alloc_type; udata.allow_sect_absorb = FALSE; /* Force section to be absorbed into aggregator */ udata.allow_eoa_shrink_only = FALSE; /* Check if the block can shrink the container */ if(sect_cls->can_shrink) { if((ret_value = (*sect_cls->can_shrink)((const H5FS_section_info_t *)node, &udata)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTMERGE, FAIL, "can't check if section can shrink container") if(ret_value > 0) { HDassert(sect_cls->shrink); if((*sect_cls->shrink)((H5FS_section_info_t **)&node, &udata) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink container") } /* end if */ } /* end if */ done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); /* Free section node allocated */ if(node && H5MF__sect_free((H5FS_section_info_t *)node) < 0) HDONE_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't free simple section node") #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving, ret_value = %d\n", FUNC, ret_value); #endif /* H5MF_ALLOC_DEBUG */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF_try_shrink() */ /*------------------------------------------------------------------------- * Function: H5MF_close * * Purpose: Close the free space tracker(s) for a file: * paged or non-paged aggregation * * Return: SUCCEED/FAIL * * Programmer: Vailin Choi; Dec 2012 * *------------------------------------------------------------------------- */ herr_t H5MF_close(H5F_t *f) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Entering\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ /* check args */ HDassert(f); HDassert(f->shared); if(H5F_PAGED_AGGR(f)) { if((ret_value = H5MF__close_pagefs(f)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "can't close free-space managers for 'page' file space") } else { if((ret_value = H5MF__close_aggrfs(f)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "can't close free-space managers for 'aggr' file space") } done: #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF_close() */ /*------------------------------------------------------------------------- * Function: H5MF__close_delete_fstype * * Purpose: Common code for closing and deleting the freespace manager * of TYPE for file. * Note that TYPE can be H5F_mem_page_t or H5FD_mem_t enum types. * * Return: SUCCEED/FAIL * * Programmer: Vailin Choi * Jan 2016 * *------------------------------------------------------------------------- */ static herr_t H5MF__close_delete_fstype(H5F_t *f, H5F_mem_page_t type) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Entering\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ /* check args */ HDassert(f); HDassert(f->shared); if(H5F_PAGED_AGGR(f)) HDassert(type < H5F_MEM_PAGE_NTYPES); else HDassert((H5FD_mem_t)type < H5FD_MEM_NTYPES); #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Check 1.0 - f->shared->fs_man[%u] = %p, f->shared->fs_addr[%u] = %a\n", FUNC, (unsigned)type, f->shared->fs_man[type], (unsigned)type, f->shared->fs_addr[type]); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* If the free space manager for this type is open, close it */ if(f->shared->fs_man[type]) if(H5MF__close_fstype(f, type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't close the free space manager") #ifdef H5MF_ALLOC_DEBUG_MORE HDfprintf(stderr, "%s: Check 2.0 - f->shared->fs_man[%u] = %p, f->shared->fs_addr[%u] = %a\n", FUNC, (unsigned)type, f->shared->fs_man[type], (unsigned)type, f->shared->fs_addr[type]); #endif /* H5MF_ALLOC_DEBUG_MORE */ /* If there is free space manager info for this type, delete it */ if(H5F_addr_defined(f->shared->fs_addr[type])) if(H5MF__delete_fstype(f, type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't delete the free space manager") done: #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* H5MF__close_delete() */ /*------------------------------------------------------------------------- * Function: H5MF_try_close * * Purpose: This is called by H5Fformat_convert() to close and delete * free-space managers when downgrading persistent free-space * to non-persistent. * * Return: SUCCEED/FAIL * * Programmer: Vailin Choi * Jan 2016 * *------------------------------------------------------------------------- */ herr_t H5MF_try_close(H5F_t *f) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t curr_ring = H5AC_RING_INV; /* Current ring value */ H5AC_ring_t needed_ring = H5AC_RING_INV; /* Ring value needed for this iteration */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Entering\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ /* check args */ HDassert(f); /* If there have been no file space allocations / deallocation so * far, must call H5MF_tidy_self_referential_fsm_hack() to float * all self referential FSMs and release file space allocated to * them. Otherwise, the function will be called after the format * conversion, and will become very confused. * * The situation is further complicated if a cache image exists * and had not yet been loaded into the metadata cache. In this * case, call H5AC_force_cache_image_load() instead of * H5MF_tidy_self_referential_fsm_hack(). H5AC_force_cache_image_load() * will load the cache image, and then call * H5MF_tidy_self_referential_fsm_hack() to discard the cache image * block. */ /* Set the ring type in the API context. In most cases, we will * need H5AC_RING_RDFSM, so initially set the ring in * the context to that value. We will alter this later if needed. */ H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring); curr_ring = H5AC_RING_RDFSM; if(H5F_PAGED_AGGR(f)) { H5F_mem_page_t ptype; /* Memory type for iteration */ /* Iterate over all the free space types that have managers and * get each free list's space */ for(ptype = H5F_MEM_PAGE_META; ptype < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, ptype)) { /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, ptype)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring ) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ if(H5MF__close_delete_fstype(f, ptype) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't close the free space manager") } /* end for */ } /* end if */ else { H5FD_mem_t type; /* Memory type for iteration */ /* Iterate over all the free space types that have managers and * get each free list's space */ for(type = H5FD_MEM_DEFAULT; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) { /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, (H5F_mem_page_t)type)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ if(H5MF__close_delete_fstype(f, (H5F_mem_page_t)type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't close the free space manager") } /* end for */ } /* end else */ done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* H5MF_try_close() */ /*------------------------------------------------------------------------- * Function: H5MF__close_aggrfs * * Purpose: Close the free space tracker(s) for a file: non-paged aggregation * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * Tuesday, January 22, 2008 * *------------------------------------------------------------------------- */ static herr_t H5MF__close_aggrfs(H5F_t *f) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t curr_ring = H5AC_RING_INV; /* Current ring value */ H5AC_ring_t needed_ring = H5AC_RING_INV; /* Ring value needed for this iteration. */ H5FD_mem_t type; /* Memory type for iteration */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Entering\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ /* check args */ HDassert(f); HDassert(f->shared); HDassert(f->shared->lf); HDassert(f->shared->sblock); /* Set the ring type in the API context. In most cases, we will * need H5AC_RING_RDFSM, so initially set the ring in * the context to that value. We will alter this later if needed. */ H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring); curr_ring = H5AC_RING_RDFSM; /* Free the space in aggregators */ /* (for space not at EOA, it may be put into free space managers) */ if(H5MF_free_aggrs(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "can't free aggregators") /* Trying shrinking the EOA for the file */ if(H5MF__close_shrink_eoa(f) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink eoa") /* Making free-space managers persistent for superblock version >= 2 */ if(f->shared->sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2 && f->shared->fs_persist) { H5O_fsinfo_t fsinfo; /* File space info message */ haddr_t final_eoa; /* Final eoa -- for sanity check */ H5F_mem_page_t ptype; /* Memory type for iteration */ /* superblock extension and free space manager message should * exist at this point -- verify at least the former. */ HDassert(H5F_addr_defined(f->shared->sblock->ext_addr)); /* file space for all non-empty free space managers should be * allocated at this point, and these free space managers should * be written to file and thus their headers and section info * entries in the metadata cache should be clean. */ /* gather data for the free space manager superblock extension message. * * In passing, verify that all the free space managers are closed. */ for(ptype = H5F_MEM_PAGE_META; ptype < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, ptype)) fsinfo.fs_addr[ptype - 1] = HADDR_UNDEF; for(type = H5FD_MEM_SUPER; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) fsinfo.fs_addr[type-1] = f->shared->fs_addr[type]; fsinfo.strategy = f->shared->fs_strategy; fsinfo.persist = f->shared->fs_persist; fsinfo.threshold = f->shared->fs_threshold; fsinfo.page_size = f->shared->fs_page_size; fsinfo.pgend_meta_thres = f->shared->pgend_meta_thres; fsinfo.eoa_pre_fsm_fsalloc = f->shared->eoa_fsm_fsalloc; fsinfo.version = f->shared->fs_version; /* Write the free space manager message -- message must already exist */ if(H5F__super_ext_write_msg(f, H5O_FSINFO_ID, &fsinfo, FALSE, H5O_MSG_FLAG_MARK_IF_UNKNOWN) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_WRITEERROR, FAIL, "error in writing message to superblock extension") /* Close the free space managers */ for(type = H5FD_MEM_SUPER; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) { if(f->shared->fs_man[type]) { /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, (H5F_mem_page_t)type)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ HDassert(f->shared->fs_state[type] == H5F_FS_STATE_OPEN); if(H5FS_close(f, f->shared->fs_man[type]) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't close free space manager") f->shared->fs_man[type] = NULL; f->shared->fs_state[type] = H5F_FS_STATE_CLOSED; } /* end if */ f->shared->fs_addr[type] = HADDR_UNDEF; } /* end for */ /* verify that we haven't dirtied any metadata cache entries * from the metadata free space manager ring out. */ HDassert(H5AC_cache_is_clean(f, H5AC_RING_MDFSM)); /* verify that the aggregators are still shutdown. */ HDassert(f->shared->sdata_aggr.tot_size == 0); HDassert(f->shared->sdata_aggr.addr == 0); HDassert(f->shared->sdata_aggr.size == 0); HDassert(f->shared->meta_aggr.tot_size == 0); HDassert(f->shared->meta_aggr.addr == 0); HDassert(f->shared->meta_aggr.size == 0); /* Trying shrinking the EOA for the file */ /* (in case any free space is now at the EOA) */ if(H5MF__close_shrink_eoa(f) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink eoa") /* get the eoa, and verify that it has the expected value */ if(HADDR_UNDEF == (final_eoa = H5FD_get_eoa(f->shared->lf, H5FD_MEM_DEFAULT)) ) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get file size") /* f->shared->eoa_post_fsm_fsalloc is undefined if there has * been no file space allocation or deallocation since file * open. */ HDassert(H5F_NULL_FSM_ADDR(f) || final_eoa == f->shared->eoa_fsm_fsalloc); } /* end if */ else { /* super_vers can be 0, 1, 2 */ for(type = H5FD_MEM_DEFAULT; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) if(H5MF__close_delete_fstype(f, (H5F_mem_page_t)type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize file free space") } /* end else */ /* Free the space in aggregators (again) */ /* (in case any free space information re-started them) */ if(H5MF_free_aggrs(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "can't free aggregators") /* Trying shrinking the EOA for the file */ /* (in case any free space is now at the EOA) */ if(H5MF__close_shrink_eoa(f) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink eoa") done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__close_aggrfs() */ /*------------------------------------------------------------------------- * Function: H5MF__close_pagefs * * Purpose: Close the free space tracker(s) for a file: paged aggregation * * Return: SUCCEED/FAIL * * Programmer: Vailin Choi; Dec 2012 * *------------------------------------------------------------------------- */ static herr_t H5MF__close_pagefs(H5F_t *f) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t curr_ring = H5AC_RING_INV; /* Current ring value */ H5AC_ring_t needed_ring = H5AC_RING_INV; /* Ring value needed for this iteration. */ H5F_mem_page_t ptype; /* Memory type for iteration */ H5O_fsinfo_t fsinfo; /* File space info message */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG) #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Entering\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ /* check args */ HDassert(f); HDassert(f->shared); HDassert(f->shared->lf); HDassert(f->shared->sblock); HDassert(f->shared->fs_page_size); HDassert(f->shared->sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2); /* Set the ring type in the API context. In most cases, we will * need H5AC_RING_RDFSM, so initially set the ring in * the context to that value. We will alter this later if needed. */ H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring); curr_ring = H5AC_RING_RDFSM; /* Trying shrinking the EOA for the file */ if(H5MF__close_shrink_eoa(f) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink eoa") /* Set up file space info message */ fsinfo.strategy = f->shared->fs_strategy; fsinfo.persist = f->shared->fs_persist; fsinfo.threshold = f->shared->fs_threshold; fsinfo.page_size = f->shared->fs_page_size; fsinfo.pgend_meta_thres = f->shared->pgend_meta_thres; fsinfo.eoa_pre_fsm_fsalloc = HADDR_UNDEF; fsinfo.version = f->shared->fs_version; for(ptype = H5F_MEM_PAGE_META; ptype < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, ptype)) fsinfo.fs_addr[ptype - 1] = HADDR_UNDEF; if(f->shared->fs_persist) { haddr_t final_eoa; /* final eoa -- for sanity check */ /* superblock extension and free space manager message should * exist at this point -- verify at least the former. */ HDassert(H5F_addr_defined(f->shared->sblock->ext_addr)); /* file space for all non-empty free space managers should be * allocated at this point, and these free space managers should * be written to file and thus their headers and section info * entries in the metadata cache should be clean. */ /* gather data for the free space manager superblock extension message. * Only need addresses of FSMs and eoa prior to allocation of * file space for the self referential free space managers. Other * data was gathered above. */ for(ptype = H5F_MEM_PAGE_META; ptype < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, ptype)) fsinfo.fs_addr[ptype-1] = f->shared->fs_addr[ptype]; fsinfo.eoa_pre_fsm_fsalloc = f->shared->eoa_fsm_fsalloc; /* Write the free space manager message -- message must already exist */ if(H5F__super_ext_write_msg(f, H5O_FSINFO_ID, &fsinfo, FALSE, H5O_MSG_FLAG_MARK_IF_UNKNOWN) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_WRITEERROR, FAIL, "error in writing message to superblock extension") /* Close the free space managers */ /* use H5MF__close_fstype() for this? */ for(ptype = H5F_MEM_PAGE_META; ptype < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, ptype)) { if(f->shared->fs_man[ptype]) { /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, ptype)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ HDassert(f->shared->fs_state[ptype] == H5F_FS_STATE_OPEN); if(H5FS_close(f, f->shared->fs_man[ptype]) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't close free space manager") f->shared->fs_man[ptype] = NULL; f->shared->fs_state[ptype] = H5F_FS_STATE_CLOSED; } /* end if */ f->shared->fs_addr[ptype] = HADDR_UNDEF; } /* end for */ /* verify that we haven't dirtied any metadata cache entries * from the metadata free space manager ring out. */ HDassert(H5AC_cache_is_clean(f, H5AC_RING_MDFSM)); /* Trying shrinking the EOA for the file */ /* (in case any free space is now at the EOA) */ if(H5MF__close_shrink_eoa(f) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink eoa") /* get the eoa, and verify that it has the expected value */ if(HADDR_UNDEF == (final_eoa = H5FD_get_eoa(f->shared->lf, H5FD_MEM_DEFAULT)) ) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get file size") /* f->shared->eoa_post_fsm_fsalloc is undefined if there has * been no file space allocation or deallocation since file * open. * * If there is a cache image in the file at file open, * f->shared->first_alloc_dealloc will always be FALSE unless * the file is opened R/O, as otherwise, the image will have been * read and discarded by this point. * * If a cache image was created on file close, the actual EOA * should be in f->shared->eoa_post_mdci_fsalloc. Note that in * this case, it is conceivable that f->shared->first_alloc_dealloc * will still be TRUE, as the cache image is allocated directly from * the file driver layer. However, as this possibility seems remote, * it is ignored in the following assert. */ HDassert((H5F_NULL_FSM_ADDR(f)) || (final_eoa == f->shared->eoa_fsm_fsalloc) || ((H5F_addr_defined(f->shared->eoa_post_mdci_fsalloc)) && (final_eoa == f->shared->eoa_post_mdci_fsalloc))); } /* end if */ else { /* Iterate over all the free space types that have managers * and get each free list's space */ for(ptype = H5F_MEM_PAGE_META; ptype < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, ptype)) if(H5MF__close_delete_fstype(f, ptype) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't close the free space manager") /* Write file space info message to superblock extension object header */ /* Create the superblock extension object header in advance if needed */ if(H5F__super_ext_write_msg(f, H5O_FSINFO_ID, &fsinfo, FALSE, H5O_MSG_FLAG_MARK_IF_UNKNOWN) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_WRITEERROR, FAIL, "error in writing message to superblock extension") } /* end else */ /* Trying shrinking the EOA for the file */ /* (in case any free space is now at the EOA) */ if(H5MF__close_shrink_eoa(f) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink eoa") done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); #ifdef H5MF_ALLOC_DEBUG HDfprintf(stderr, "%s: Leaving\n", FUNC); #endif /* H5MF_ALLOC_DEBUG */ FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__close_pagefs() */ /*------------------------------------------------------------------------- * Function: H5MF__close_shrink_eoa * * Purpose: Shrink the EOA while closing * * Return: SUCCEED/FAIL * * Programmer: Quincey Koziol * Saturday, July 7, 2012 * *------------------------------------------------------------------------- */ static herr_t H5MF__close_shrink_eoa(H5F_t *f) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t curr_ring = H5AC_RING_INV; /* Current ring value */ H5AC_ring_t needed_ring = H5AC_RING_INV; /* Ring value needed for this iteration. */ H5F_mem_t type; H5F_mem_page_t ptype; /* Memory type for iteration */ hbool_t eoa_shrank; /* Whether an EOA shrink occurs */ htri_t status; /* Status value */ H5MF_sect_ud_t udata; /* User data for callback */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC_TAG(H5AC__FREESPACE_TAG) /* check args */ HDassert(f); HDassert(f->shared); /* Construct user data for callbacks */ udata.f = f; udata.allow_sect_absorb = FALSE; udata.allow_eoa_shrink_only = TRUE; /* Set the ring type in the API context */ H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring); curr_ring = H5AC_RING_RDFSM; /* Iterate until no more EOA shrinking occurs */ do { eoa_shrank = FALSE; if(H5F_PAGED_AGGR(f)) { /* Check the last section of each free-space manager */ for(ptype = H5F_MEM_PAGE_META; ptype < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, ptype)) { if(f->shared->fs_man[ptype]) { /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, ptype)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ udata.alloc_type = (H5FD_mem_t)((H5FD_mem_t)ptype < H5FD_MEM_NTYPES ? ptype : ((ptype % H5FD_MEM_NTYPES) + 1)); if((status = H5FS_sect_try_shrink_eoa(f, f->shared->fs_man[ptype], &udata)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't check for shrinking eoa") else if(status > 0) eoa_shrank = TRUE; } /* end if */ } /* end for */ } /* end if */ else { /* Check the last section of each free-space manager */ for(type = H5FD_MEM_DEFAULT; type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, type)) { if(f->shared->fs_man[type]) { /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, (H5F_mem_page_t)type)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ udata.alloc_type = type; if((status = H5FS_sect_try_shrink_eoa(f, f->shared->fs_man[type], &udata)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't check for shrinking eoa") else if(status > 0) eoa_shrank = TRUE; } /* end if */ } /* end for */ /* check the two aggregators */ if((status = H5MF_aggrs_try_shrink_eoa(f)) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't check for shrinking eoa") else if(status > 0) eoa_shrank = TRUE; } /* end else */ } while(eoa_shrank); done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF__close_shrink_eoa() */ /*------------------------------------------------------------------------- * Function: H5MF_get_freespace * * Purpose: Retrieve the amount of free space in the file * * Return: Success: Amount of free space in file * Failure: Negative * * Programmer: Quincey Koziol * Monday, October 6, 2003 * *------------------------------------------------------------------------- */ herr_t H5MF_get_freespace(H5F_t *f, hsize_t *tot_space, hsize_t *meta_size) { haddr_t ma_addr = HADDR_UNDEF; /* Base "metadata aggregator" address */ hsize_t ma_size = 0; /* Size of "metadata aggregator" */ haddr_t sda_addr = HADDR_UNDEF; /* Base "small data aggregator" address */ hsize_t sda_size = 0; /* Size of "small data aggregator" */ hsize_t tot_fs_size = 0; /* Amount of all free space managed */ hsize_t tot_meta_size = 0; /* Amount of metadata for free space managers */ H5FD_mem_t tt; /* Memory type for iteration */ H5F_mem_page_t type; /* Memory type for iteration */ H5F_mem_page_t start_type; /* Memory type for iteration */ H5F_mem_page_t end_type; /* Memory type for iteration */ htri_t fs_started[H5F_MEM_PAGE_NTYPES]; /* Indicate whether the free-space manager has been started */ haddr_t fs_eoa[H5FD_MEM_NTYPES]; /* EAO for each free-space manager */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t curr_ring = H5AC_RING_INV; /* Current ring value */ H5AC_ring_t needed_ring = H5AC_RING_INV; /* Ring value needed for this iteration. */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL) /* check args */ HDassert(f); HDassert(f->shared); HDassert(f->shared->lf); /* Set the ring type in the API context. In most cases, we will * need H5AC_RING_RDFSM, so initially set the ring in * the context to that value. We will alter this later if needed. */ H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring); curr_ring = H5AC_RING_RDFSM; /* Determine start/end points for loop */ if(H5F_PAGED_AGGR(f)) { start_type = H5F_MEM_PAGE_META; end_type = H5F_MEM_PAGE_NTYPES; } /* end if */ else { start_type = (H5F_mem_page_t)H5FD_MEM_SUPER; end_type = (H5F_mem_page_t)H5FD_MEM_NTYPES; } /* end else */ for(tt = H5FD_MEM_SUPER; tt < H5FD_MEM_NTYPES; H5_INC_ENUM(H5FD_mem_t, tt)) if(HADDR_UNDEF == (fs_eoa[tt] = H5F_get_eoa(f, tt))) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "driver get_eoa request failed") if(!H5F_PAGED_AGGR(f)) { /* Retrieve metadata aggregator info, if available */ if(H5MF__aggr_query(f, &(f->shared->meta_aggr), &ma_addr, &ma_size) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query metadata aggregator stats") /* Retrieve 'small data' aggregator info, if available */ if(H5MF__aggr_query(f, &(f->shared->sdata_aggr), &sda_addr, &sda_size) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query small data aggregator stats") } /* end if */ /* Iterate over all the free space types that have managers and get each free list's space */ for(type = start_type; type < end_type; H5_INC_ENUM(H5F_mem_page_t, type)) { fs_started[type] = FALSE; /* Check if the free space for the file has been initialized */ if(!f->shared->fs_man[type] && H5F_addr_defined(f->shared->fs_addr[type])) { if(H5MF__open_fstype(f, type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize file free space") HDassert(f->shared->fs_man[type]); fs_started[type] = TRUE; } /* end if */ /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, (H5F_mem_page_t)type)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ /* Check if there's free space of this type */ if(f->shared->fs_man[type]) { hsize_t type_fs_size = 0; /* Amount of free space managed for each type */ hsize_t type_meta_size = 0; /* Amount of free space metadata for each type */ /* Retrieve free space size from free space manager */ if(H5FS_sect_stats(f->shared->fs_man[type], &type_fs_size, NULL) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query free space stats") if(H5FS_size(f, f->shared->fs_man[type], &type_meta_size) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query free space metadata stats") /* Increment total free space for types */ tot_fs_size += type_fs_size; tot_meta_size += type_meta_size; } /* end if */ } /* end for */ /* Close the free-space managers if they were opened earlier in this routine */ for(type = start_type; type < end_type; H5_INC_ENUM(H5F_mem_page_t, type)) { /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, (H5F_mem_page_t)type)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, &curr_ring); curr_ring = needed_ring; } /* end if */ if(fs_started[type]) if(H5MF__close_fstype(f, type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't close file free space") } /* end for */ /* Set the value(s) to return */ /* (The metadata & small data aggregators count as free space now, since they aren't at EOA) */ if(tot_space) *tot_space = tot_fs_size + ma_size + sda_size; if(meta_size) *meta_size = tot_meta_size; done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* end H5MF_get_freespace() */ /*------------------------------------------------------------------------- * Function: H5MF_get_free_sections() * * Purpose: To retrieve free-space section information for * paged or non-paged aggregation * * Return: Success: Number of free sections * Failure: -1 * * Programmer: Vailin Choi; Dec 2012 * *------------------------------------------------------------------------- */ ssize_t H5MF_get_free_sections(H5F_t *f, H5FD_mem_t type, size_t nsects, H5F_sect_info_t *sect_info) { H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t curr_ring = H5AC_RING_INV; /* Current ring value */ H5AC_ring_t needed_ring = H5AC_RING_INV; /* Ring value needed for this iteration. */ size_t total_sects = 0; /* Total number of sections */ H5MF_sect_iter_ud_t sect_udata; /* User data for callback */ H5F_mem_page_t start_type, end_type; /* Memory types to iterate over */ H5F_mem_page_t ty; /* Memory type for iteration */ ssize_t ret_value = -1; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, (-1)) /* check args */ HDassert(f); HDassert(f->shared); HDassert(f->shared->lf); /* H5MF_tidy_self_referential_fsm_hack() will fail if any self * referential FSM is opened prior to the call to it. Thus call * it here if necessary and if it hasn't been called already. * * The situation is further complicated if a cache image exists * and had not yet been loaded into the metadata cache. In this * case, call H5AC_force_cache_image_load() instead of * H5MF_tidy_self_referential_fsm_hack(). H5AC_force_cache_image_load() * will load the cache image, and then call * H5MF_tidy_self_referential_fsm_hack() to discard the cache image * block. */ if(type == H5FD_MEM_DEFAULT) { start_type = H5F_MEM_PAGE_SUPER; end_type = H5F_MEM_PAGE_NTYPES; } /* end if */ else { start_type = end_type = (H5F_mem_page_t)type; if(H5F_PAGED_AGGR(f)) /* set to the corresponding LARGE free-space manager */ end_type = (H5F_mem_page_t)(end_type + H5FD_MEM_NTYPES); else H5_INC_ENUM(H5F_mem_page_t, end_type); } /* end else */ /* Set up user data for section iteration */ sect_udata.sects = sect_info; sect_udata.sect_count = nsects; sect_udata.sect_idx = 0; /* Set the ring type in the API context. In most cases, we will * need H5AC_RING_RDFSM, so initially set the ring in * the context to that value. We will alter this later if needed. */ H5AC_set_ring(H5AC_RING_RDFSM, &orig_ring); curr_ring = H5AC_RING_RDFSM; /* Iterate over memory types, retrieving the number of sections of each type */ for(ty = start_type; ty < end_type; H5_INC_ENUM(H5F_mem_page_t, ty)) { hbool_t fs_started = FALSE; /* The free-space manager is opened or not */ size_t nums = 0; /* The number of free-space sections */ /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, ty)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, &curr_ring); curr_ring = needed_ring; } /* end if */ if(!f->shared->fs_man[ty] && H5F_addr_defined(f->shared->fs_addr[ty])) { if(H5MF__open_fstype(f, ty) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, (-1), "can't open the free space manager") HDassert(f->shared->fs_man[ty]); fs_started = TRUE; } /* end if */ /* Check if there's free space sections of this type */ if(f->shared->fs_man[ty]) if(H5MF__get_free_sects(f, f->shared->fs_man[ty], §_udata, &nums) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, (-1), "can't get section info for the free space manager") /* Increment total # of sections */ total_sects += nums; /* Close the free space manager of this type, if we started it here */ if(fs_started) if(H5MF__close_fstype(f, ty) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTCLOSEOBJ, (-1), "can't close file free space") if((H5F_PAGED_AGGR(f)) && (type != H5FD_MEM_DEFAULT)) ty = (H5F_mem_page_t)(ty + H5FD_MEM_NTYPES - 2); } /* end for */ /* Set return value */ ret_value = (ssize_t)total_sects; done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* H5MF_get_free_sections() */ /*------------------------------------------------------------------------- * Function: H5MF__sects_cb() * * Purpose: Iterator callback for each free-space section * Retrieve address and size into user data * * Return: Always succeed * * Programmer: Vailin Choi * July 1st, 2009 * *------------------------------------------------------------------------- */ static herr_t H5MF__sects_cb(H5FS_section_info_t *_sect, void *_udata) { H5MF_free_section_t *sect = (H5MF_free_section_t *)_sect; H5MF_sect_iter_ud_t *udata = (H5MF_sect_iter_ud_t *)_udata; FUNC_ENTER_STATIC_NOERR if(udata->sect_idx < udata->sect_count) { udata->sects[udata->sect_idx].addr = sect->sect_info.addr; udata->sects[udata->sect_idx].size = sect->sect_info.size; udata->sect_idx++; } /* end if */ FUNC_LEAVE_NOAPI(SUCCEED) } /* H5MF__sects_cb() */ /*------------------------------------------------------------------------- * Function: H5MF__get_free_sects * * Purpose: Retrieve section information for the specified free-space manager. * * Return: Success: non-negative * Failure: negative * * Programmer: Vailin Choi; Dec 2012 * *------------------------------------------------------------------------- */ static herr_t H5MF__get_free_sects(H5F_t *f, H5FS_t *fspace, H5MF_sect_iter_ud_t *sect_udata, size_t *nums) { hsize_t hnums = 0; /* # of sections */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* check args */ HDassert(f); HDassert(sect_udata); HDassert(nums); HDassert(fspace); /* Query how many sections of this type */ if(H5FS_sect_stats(fspace, NULL, &hnums) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't query free space stats") H5_CHECKED_ASSIGN(*nums, size_t, hnums, hsize_t); /* Check if we should retrieve the section info */ if(sect_udata->sects && *nums > 0) /* Iterate over all the free space sections of this type, adding them to the user's section info */ if(H5FS_sect_iterate(f, fspace, H5MF__sects_cb, sect_udata) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_BADITER, FAIL, "can't iterate over sections") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5MF__get_free_sects() */ /*------------------------------------------------------------------------- * Function: H5MF_settle_raw_data_fsm() * * Purpose: Handle any tasks required before the metadata cache * can serialize or flush the raw data free space manager * and any metadata free space managers that reside in the * raw data free space manager ring. * * Specifically, this means any metadata managers that DON'T * handle space allocation for free space manager header or * section info will reside in the raw data free space manager * ring. * * In the absence of page allocation, there is at most one * free space manager per memory type defined in H5F_mem_t. * Of these, the one that allocates H5FD_MEM_DRAW will * always reside in the raw data free space manager ring. * If there is more than one metadata free space manager, * all that don't handle H5FD_MEM_FSPACE_HDR or * H5FD_MEM_FSPACE_SINFO (which map to H5FD_MEM_OHDR and * H5FD_MEM_LHEAP respectively) will reside in the raw * data free space manager ring as well * * With page allocation, the situation is conceptually * identical, but more complex in practice. * * In the worst case (multi file driver) page allocation * can result in two free space managers for each memory * type -- one for small (less than on equal to one page) * allocations, and one for large (greater than one page) * allocations. * * In the more common one file case, page allocation will * result in a total of three free space managers -- one for * small (<= one page) raw data allocations, one for small * metadata allocations (i.e, all memory types other than * H5FD_MEM_DRAW), and one for all large (> one page) * allocations. * * Despite these complications, the solution is the same in * the page allocation case -- free space managers (be they * small data or large) are assigned to the raw data free * space manager ring if they don't allocate file space for * free space managers. Note that in the one file case, the * large free space manager must be assigned to the metadata * free space manager ring, as it both allocates pages for * the metadata free space manager, and allocates space for * large (> 1 page) metadata cache entries. * * At present, the task list for this routine is: * * 1) Reduce the EOA to the extent possible. To do this: * * a) Free both aggregators. Space not at EOA will be * added to the appropriate free space manager. * * The raw data aggregator should not be restarted * after this point. It is possible that the metadata * aggregator will be. * * b) Free all file space currently allocated to free * space managers. * * c) Delete the free space manager superblock * extension message if allocated. * * This done, reduce the EOA by moving it to just before * the last piece of free memory in the file. * * 2) Ensure that space is allocated for the free space * manager superblock extension message. Must do this * now, before reallocating file space for free space * managers, as it is possible that this allocation may * grab the last section in a FSM -- making it unnecessary * to re-allocate file space for it. * * 3) Scan all free space managers not involved in allocating * space for free space managers. For each such free space * manager, test to see if it contains free space. If * it does, allocate file space for its header and section * data. If it contains no free space, leave it without * allocated file space as there is no need to save it to * file. * * Note that all free space managers in this class should * see no further space allocations / deallocations as * at this point, all raw data allocations should be * finalized, as should all metadata allocations not * involving free space managers. * * We will allocate space for free space managers involved * in the allocation of file space for free space managers * in H5MF_settle_meta_data_fsm() * * Return: SUCCEED/FAIL * * Programmer: John Mainzer * 5/25/16 * *------------------------------------------------------------------------- */ herr_t H5MF_settle_raw_data_fsm(H5F_t *f, hbool_t *fsm_settled) { int pass_count; hsize_t alloc_size; H5F_mem_t mem_type; /* Memory type for iteration */ H5F_mem_page_t fsm_type; /* FSM type for iteration */ H5O_fsinfo_t fsinfo; /* Free space manager info message */ H5FS_stat_t fs_stat; /* Information for free-space manager */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5AC_ring_t curr_ring = H5AC_RING_INV; /* Current ring value */ H5AC_ring_t needed_ring = H5AC_RING_INV; /* Ring value needed for this iteration */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL) /* Check args */ HDassert(f); HDassert(f->shared); HDassert(fsm_settled); /* Only need to settle things if we are persisting the free space info * and allocation/deallocation has occurred. */ if(f->shared->fs_persist && !H5F_NULL_FSM_ADDR(f)) { hbool_t fsm_opened[H5F_MEM_PAGE_NTYPES]; /* State of FSM */ hbool_t fsm_visited[H5F_MEM_PAGE_NTYPES]; /* State of FSM */ /* Sanity check */ HDassert(f->shared->sblock); /* should only be called if file is opened R/W */ HDassert(H5F_INTENT(f) & H5F_ACC_RDWR); /* shouldn't be called unless we have a superblock supporting the * superblock extension. */ HDassert(f->shared->sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2); /* Initialize fsm_opened and fsm_visited */ HDmemset(fsm_opened, 0, sizeof(fsm_opened)); HDmemset(fsm_visited, 0, sizeof(fsm_visited)); /* 1) Reduce the EOA to the extent possible. */ /* a) Free the space in aggregators: * * (for space not at EOF, it may be put into free space managers) * * Do this now so that the raw data FSM (and any other FSM that isn't * involved in space allocation for FSMs) will have no further activity. * * Note that while the raw data aggregator should not be restarted during * the close process, this need not be the case for the metadata aggregator. * * Note also that the aggregators will not exist if page aggregation * is enabled -- skip this if so. */ /* Vailin -- is this correct? */ if(!H5F_PAGED_AGGR(f) && (H5MF_free_aggrs(f) < 0)) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "can't free aggregators") /* Set the ring type in the DXPL. In most cases, we will * need H5AC_RING_MDFSM first, so initially set the ring in * the DXPL to that value. We will alter this later if * needed. */ H5AC_set_ring(H5AC_RING_MDFSM, &orig_ring); curr_ring = H5AC_RING_MDFSM; /* b) Free the file space (if any) allocated to each free space manager. * * Do this to facilitate reduction of the size of the file to the * extent possible. We will re-allocate space to free space managers * that have free space to save after this reduction. * * In the case of the raw data free space manager, and any other free * space manager that does not allocate space for free space managers, * allocations should be complete at this point, as all raw data should * have space allocated and be flushed to file by now. Thus we * can examine such free space managers and only re-allocate space for * them if they contain free space. Do this later in this function after * the EOA has been reduced to the extent possible. * * For free space managers that allocate file space for free space * managers (usually just a single metadata free space manager, but for * now at least, free space managers for different types of metadata * are possible), the matter is more ticklish due to the self- * referential nature of the problem. These FSMs are dealt with in * H5MF_settle_meta_data_fsm(). * * Since paged allocation may be enabled, there may be up to two * free space managers per memory type -- one for small and one for * large allocation. Hence we must loop over the memory types twice * setting the allocation size accordingly if paged allocation is * enabled. */ for(pass_count = 0; pass_count <= 1; pass_count++) { if(pass_count == 0) alloc_size = 1; else if ( H5F_PAGED_AGGR(f) ) alloc_size = f->shared->fs_page_size + 1; else /* no need for a second pass */ break; for(mem_type = H5FD_MEM_SUPER; mem_type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5F_mem_t, mem_type)) { H5MF__alloc_to_fs_type(f, mem_type, alloc_size, &fsm_type); if(pass_count == 0) { /* this is the first pass */ HDassert(fsm_type > H5F_MEM_PAGE_DEFAULT); HDassert(fsm_type < H5F_MEM_PAGE_LARGE_SUPER); } /* end if */ else if(H5F_PAGED_AGGR(f)) { /* page alloc active */ HDassert(fsm_type >= H5F_MEM_PAGE_LARGE_SUPER); HDassert(fsm_type < H5F_MEM_PAGE_NTYPES); } /* end else-if */ else /* paged allocation disabled -- should be unreachable */ HDassert(FALSE); if(!fsm_visited[fsm_type]) { fsm_visited[fsm_type] = TRUE; /* If there is no active FSM for this type, but such a FSM has * space allocated in file, open it so that we can free its file * space. */ if(NULL == f->shared->fs_man[fsm_type]) { if(H5F_addr_defined(f->shared->fs_addr[fsm_type])) { /* Sanity check */ HDassert(fsm_opened[fsm_type] == FALSE); if(H5MF__open_fstype(f, fsm_type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't initialize file free space manager") fsm_opened[fsm_type] = TRUE; } /* end if */ } /* end if */ if(f->shared->fs_man[fsm_type]) { /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, fsm_type)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ /* Query free space manager info for this type */ if(H5FS_stat_info(f, f->shared->fs_man[fsm_type], &fs_stat) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't get free-space info") /* Check if the free space manager has space in the file */ if(H5F_addr_defined(fs_stat.addr) || H5F_addr_defined(fs_stat.sect_addr)) { /* Delete the free space manager in the file. Will * reallocate later if the free space manager contains * any free space. */ if(H5FS_free(f, f->shared->fs_man[fsm_type], TRUE) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't release free-space headers") f->shared->fs_addr[fsm_type] = HADDR_UNDEF; } /* end if */ } /* end if */ /* note that we are tracking opened FSM -- we will close them * at the end of the function. */ } /* end if */ } /* end for */ } /* end for */ /* c) Delete the free space manager superblock extension message * if allocated. * * Must do this since the routine that writes / creates superblock * extension messages will choke if the target message is * unexpectedly either absent or present. * * Update: This is probably unnecessary, as I gather that the * file space manager info message is guaranteed to exist. * Leave it in for now, but consider removing it. */ if(H5F_addr_defined(f->shared->sblock->ext_addr)) if(H5F__super_ext_remove_msg(f, H5O_FSINFO_ID) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "error in removing message from superblock extension") /* As the final element in 1), shrink the EOA for the file */ if(H5MF__close_shrink_eoa(f) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink eoa") /* 2) Ensure that space is allocated for the free space manager superblock * extension message. Must do this now, before reallocating file space * for free space managers, as it is possible that this allocation may * grab the last section in a FSM -- making it unnecessary to * re-allocate file space for it. * * Do this by writing a free space manager superblock extension message. * * Since no free space manager has file space allocated for it, this * message must be invalid since we can't save addresses of FSMs when * those addresses are unknown. This is OK -- we will write the correct * values to the message at free space manager shutdown. */ for(fsm_type = H5F_MEM_PAGE_SUPER; fsm_type < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, fsm_type)) fsinfo.fs_addr[fsm_type - 1] = HADDR_UNDEF; fsinfo.strategy = f->shared->fs_strategy; fsinfo.persist = f->shared->fs_persist; fsinfo.threshold = f->shared->fs_threshold; fsinfo.page_size = f->shared->fs_page_size; fsinfo.pgend_meta_thres = f->shared->pgend_meta_thres; fsinfo.eoa_pre_fsm_fsalloc = HADDR_UNDEF; if(H5F__super_ext_write_msg(f, H5O_FSINFO_ID, &fsinfo, TRUE, H5O_MSG_FLAG_MARK_IF_UNKNOWN) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_WRITEERROR, FAIL, "error in writing fsinfo message to superblock extension") /* 3) Scan all free space managers not involved in allocating * space for free space managers. For each such free space * manager, test to see if it contains free space. If * it does, allocate file space for its header and section * data. If it contains no free space, leave it without * allocated file space as there is no need to save it to * file. * * Note that all free space managers in this class should * see no further space allocations / deallocations as * at this point, all raw data allocations should be * finalized, as should all metadata allocations not involving * free space managers. * * We will allocate space for free space managers involved * in the allocation of file space for free space managers * in H5MF_settle_meta_data_fsm() */ /* Reinitialize fsm_visited */ for(fsm_type = H5F_MEM_PAGE_SUPER; fsm_type < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, fsm_type)) fsm_visited[fsm_type] = FALSE; for(pass_count = 0; pass_count <= 1; pass_count++) { if(pass_count == 0) alloc_size = 1; else if(H5F_PAGED_AGGR(f)) alloc_size = f->shared->fs_page_size + 1; else /* no need for a second pass */ break; for(mem_type = H5FD_MEM_SUPER; mem_type < H5FD_MEM_NTYPES; H5_INC_ENUM(H5F_mem_t, mem_type)) { H5MF__alloc_to_fs_type(f, mem_type, alloc_size, &fsm_type); if(pass_count == 0) { /* this is the first pass */ HDassert(fsm_type > H5F_MEM_PAGE_DEFAULT); HDassert(fsm_type < H5F_MEM_PAGE_LARGE_SUPER); } /* end if */ else if(H5F_PAGED_AGGR(f)) { /* page alloc active */ HDassert(fsm_type >= H5F_MEM_PAGE_LARGE_SUPER); HDassert(fsm_type < H5F_MEM_PAGE_NTYPES); } /* end else-if */ else /* paged allocation disabled -- should be unreachable */ HDassert(FALSE); /* Test to see if we need to switch rings -- do so if required */ if(H5MF__fsm_type_is_self_referential(f, fsm_type)) needed_ring = H5AC_RING_MDFSM; else needed_ring = H5AC_RING_RDFSM; if(needed_ring != curr_ring) { H5AC_set_ring(needed_ring, NULL); curr_ring = needed_ring; } /* end if */ /* Since there can be a many-to-one mapping from memory types * to free space managers, ensure that we don't visit any FSM * more than once. */ if(!fsm_visited[fsm_type]) { fsm_visited[fsm_type] = TRUE; if(f->shared->fs_man[fsm_type]) { /* Only allocate file space if the target free space manager * doesn't allocate file space for free space managers. Note * that this is also the deciding factor as to whether a FSM * in in the raw data FSM ring. */ if(!H5MF__fsm_type_is_self_referential(f, fsm_type)) { /* The current ring should be H5AC_RING_RDFSM */ HDassert(curr_ring == H5AC_RING_RDFSM); /* Query free space manager info for this type */ if(H5FS_stat_info(f, f->shared->fs_man[fsm_type], &fs_stat) < 0 ) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't get free-space info") /* If the free space manager contains section info, * allocate space for the header and sinfo (note that * space must not be allocated at present -- verify * verify this with assertions). */ if(fs_stat.serial_sect_count > 0) { /* Sanity check */ HDassert(!H5F_addr_defined(fs_stat.addr)); /* Allocate FSM header */ if(H5FS_alloc_hdr(f, f->shared->fs_man[fsm_type], &f->shared->fs_addr[fsm_type]) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "can't allocated free-space header") /* Allocate FSM section info */ HDassert(!H5F_addr_defined(fs_stat.sect_addr)); HDassert(fs_stat.alloc_sect_size == 0); if(H5FS_alloc_sect(f, f->shared->fs_man[fsm_type]) < 0 ) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "can't allocate free-space section info") #ifndef NDEBUG /* Re-Query free space manager info for this type */ if(H5FS_stat_info(f, f->shared->fs_man[fsm_type], &fs_stat) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTRELEASE, FAIL, "can't get free-space info") HDassert(H5F_addr_defined(fs_stat.addr)); HDassert(H5F_addr_defined(fs_stat.sect_addr)); HDassert(fs_stat.serial_sect_count > 0); HDassert(fs_stat.alloc_sect_size > 0); HDassert(fs_stat.alloc_sect_size == fs_stat.sect_size); #endif /* NDEBUG */ } /* end if */ else { HDassert(!H5F_addr_defined(fs_stat.addr)); HDassert(!H5F_addr_defined(fs_stat.sect_addr)); HDassert(fs_stat.serial_sect_count == 0); HDassert(fs_stat.alloc_sect_size == 0); } /* end else */ } /* end if */ } /* end if */ /* Close any opened FSMs */ if(fsm_opened[fsm_type]) { if(H5MF__close_fstype(f, fsm_type) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "can't close file free space manager") fsm_opened[fsm_type] = FALSE; } /* end if */ } /* end if */ } /* end for */ } /* end for */ /* verify that all opened FSMs were closed */ for(fsm_type = H5F_MEM_PAGE_SUPER; fsm_type < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, fsm_type)) HDassert(!fsm_opened[fsm_type]); /* Indicate that the FSM was settled successfully */ *fsm_settled = TRUE; } /* end if */ done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* H5MF_settle_raw_data_fsm() */ /* NEED TO remove/modify the comments in this routine */ /*------------------------------------------------------------------------- * Function: H5MF_settle_meta_data_fsm() * * Purpose: If the free space manager is persistent, handle any tasks * required before the metadata cache can serialize or flush * the metadata free space manager(s) that handle file space * allocation for free space managers. * * In most cases, there will be only one manager assigned * to this role. However, since for reasons unknown, * free space manager headers and section info blocks are * different classes of memory, it is possible that two free * space managers will be involved. * * On entry to this function, the raw data settle routine * (H5MF_settle_raw_data_fsm()) should have: * * 1) Freed the aggregators. * * 2) Freed all file space allocated to the free space managers. * * 3) Deleted the free space manager superblock extension message * * 4) Reduced the EOA to the extent possible. * * 5) Re-created the free space manager superblock extension * message. * * 6) Reallocated file space for all non-empty free space * managers NOT involved in allocation of space for free * space managers. * * Note that these free space managers (if not empty) should * have been written to file by this point, and that no * further space allocations involving them should take * place during file close. * * On entry to this routine, the free space manager(s) involved * in allocation of file space for free space managers should * still be floating. (i.e. should not have any file space * allocated to them.) * * Similarly, the raw data aggregator should not have been * restarted. Note that it is probable that reallocation of * space in 5) and 6) above will have re-started the metadata * aggregator. * * * In this routine, we proceed as follows: * * 1) Verify that the free space manager(s) involved in file * space allocation for free space managers are still floating. * * 2) Free the aggregators. * * 3) Reduce the EOA to the extent possible, and make note * of the resulting value. This value will be stored * in the fsinfo superblock extension message and be used * in the subsequent file open. * * 4) Re-allocate space for any free space manager(s) that: * * a) are involved in allocation of space for free space * managers, and * * b) contain free space. * * It is possible that we could allocate space for one * of these free space manager(s) only to have the allocation * result in the free space manager being empty and thus * obliging us to free the space again. Thus there is the * potential for an infinite loop if we want to avoid saving * empty free space managers. * * Similarly, it is possible that we could allocate space * for a section info block, only to discover that this * allocation has changed the size of the section info -- * forcing us to deallocate and start the loop over again. * * To avoid this, simply allocate file space for these * FSM(s) directly from the VFD layer if allocation is * indicated. This avoids the issue by bypassing the FSMs * in this case. * * Note that this may increase the size of the file needlessly. * A better solution would be to modify the FSM code to * save empty FSMs to file, and to allow section info blocks * to be oversized. However, given that the FSM code is * also used by the fractal heaps, and that we are under * severe time pressure at the moment, the above brute * force solution is attractive. * * 5) Make note of the EOA -- used for sanity checking on * FSM shutdown. * * Return: SUCCEED/FAIL * * Programmer: John Mainzer * 5/25/16 * *------------------------------------------------------------------------- */ herr_t H5MF_settle_meta_data_fsm(H5F_t *f, hbool_t *fsm_settled) { H5F_mem_page_t sm_fshdr_fs_type; /* small fs hdr fsm */ H5F_mem_page_t sm_fssinfo_fs_type; /* small fs sinfo fsm */ H5F_mem_page_t lg_fshdr_fs_type; /* large fs hdr fsm */ H5F_mem_page_t lg_fssinfo_fs_type; /* large fs sinfo fsm */ H5FS_t *sm_hdr_fspace = NULL; /* ptr to sm FSM hdr alloc FSM */ H5FS_t *sm_sinfo_fspace = NULL; /* ptr to sm FSM sinfo alloc FSM */ H5FS_t *lg_hdr_fspace = NULL; /* ptr to lg FSM hdr alloc FSM */ H5FS_t *lg_sinfo_fspace = NULL; /* ptr to lg FSM sinfo alloc FSM */ haddr_t eoa_fsm_fsalloc; /* eoa after file space allocation */ /* for self referential FSMs */ hbool_t continue_alloc_fsm = FALSE; /* Continue allocating addr and sect_addr for FSMs */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_TAG(H5AC__FREESPACE_TAG, FAIL) /* Check args */ HDassert(f); HDassert(f->shared); HDassert(fsm_settled); /* Only need to settle things if we are persisting the free space info * and allocation/deallocation has occurred. */ if(f->shared->fs_persist && !H5F_NULL_FSM_ADDR(f)) { /* Sanity check */ HDassert(f->shared->lf); /* should only be called if file is opened R/W */ HDassert(H5F_INTENT(f) & H5F_ACC_RDWR); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fs_type); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fs_type); HDassert(sm_fshdr_fs_type > H5F_MEM_PAGE_DEFAULT); HDassert(sm_fshdr_fs_type < H5F_MEM_PAGE_LARGE_SUPER); HDassert(sm_fssinfo_fs_type > H5F_MEM_PAGE_DEFAULT); HDassert(sm_fssinfo_fs_type < H5F_MEM_PAGE_LARGE_SUPER); HDassert(!H5F_addr_defined(f->shared->fs_addr[sm_fshdr_fs_type])); HDassert(!H5F_addr_defined(f->shared->fs_addr[sm_fssinfo_fs_type])); /* Note that in most cases, sm_hdr_fspace will equal sm_sinfo_fspace. */ sm_hdr_fspace = f->shared->fs_man[sm_fshdr_fs_type]; sm_sinfo_fspace = f->shared->fs_man[sm_fssinfo_fs_type]; if(H5F_PAGED_AGGR(f)) { H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fs_type); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fs_type); HDassert(lg_fshdr_fs_type >= H5F_MEM_PAGE_LARGE_SUPER); HDassert(lg_fshdr_fs_type < H5F_MEM_PAGE_NTYPES); HDassert(lg_fssinfo_fs_type >= H5F_MEM_PAGE_LARGE_SUPER); HDassert(lg_fssinfo_fs_type < H5F_MEM_PAGE_NTYPES); HDassert(!H5F_addr_defined(f->shared->fs_addr[lg_fshdr_fs_type])); HDassert(!H5F_addr_defined(f->shared->fs_addr[lg_fssinfo_fs_type])); /* Note that in most cases, lg_hdr_fspace will equal lg_sinfo_fspace. */ lg_hdr_fspace = f->shared->fs_man[lg_fshdr_fs_type]; lg_sinfo_fspace = f->shared->fs_man[lg_fssinfo_fs_type]; } /* end if */ /* Set the ring in the API context appropriately for subsequent calls */ H5AC_set_ring(H5AC_RING_MDFSM, &orig_ring); #ifndef NDEBUG { H5FS_stat_t fs_stat; /* Information for hdr FSM */ if(sm_hdr_fspace) { /* Query free space manager info for this type */ if(H5FS_stat_info(f, sm_hdr_fspace, &fs_stat) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't get free-space info") HDassert(!H5F_addr_defined(fs_stat.addr)); HDassert(!H5F_addr_defined(fs_stat.sect_addr)); HDassert(fs_stat.alloc_sect_size == 0); } /* end if */ /* Verify that sm_sinfo_fspace is floating if it exists and is distinct */ if((sm_sinfo_fspace) && (sm_hdr_fspace != sm_sinfo_fspace)) { /* Query free space manager info for this type */ if(H5FS_stat_info(f, sm_sinfo_fspace, &fs_stat) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't get free-space info") HDassert(!H5F_addr_defined(fs_stat.addr)); HDassert(!H5F_addr_defined(fs_stat.sect_addr)); HDassert(fs_stat.alloc_sect_size == 0); } /* end if */ if(H5F_PAGED_AGGR(f)) { /* Verify that lg_hdr_fspace is floating if it exists */ if(lg_hdr_fspace) { /* Query free space manager info for this type */ if(H5FS_stat_info(f, lg_hdr_fspace, &fs_stat) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't get free-space info (3)") HDassert(!H5F_addr_defined(fs_stat.addr)); HDassert(!H5F_addr_defined(fs_stat.sect_addr)); HDassert(fs_stat.alloc_sect_size == 0); } /* end if */ /* Verify that lg_sinfo_fspace is floating if it * exists and is distinct */ if((lg_sinfo_fspace) && (lg_hdr_fspace != lg_sinfo_fspace)) { /* Query free space manager info for this type */ if(H5FS_stat_info(f, lg_sinfo_fspace, &fs_stat) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "can't get free-space info (4)") HDassert(!H5F_addr_defined(fs_stat.addr)); HDassert(!H5F_addr_defined(fs_stat.sect_addr)); HDassert(fs_stat.alloc_sect_size == 0); } /* end if */ } /* end if */ } #endif /* NDEBUG */ /* Free the space in the metadata aggregator. Do this via the * H5MF_free_aggrs() call. Note that the raw data aggregator must * have already been freed. Sanity checks for this? * * Note that the aggregators will not exist if paged aggregation * is enabled -- don't attempt to free if this is the case. */ /* Vailin -- is this correct? */ /* (for space not at EOF, it may be put into free space managers) */ if((!H5F_PAGED_AGGR(f)) && (H5MF_free_aggrs(f) < 0)) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTFREE, FAIL, "can't free aggregators") /* Trying shrinking the EOA for the file */ if(H5MF__close_shrink_eoa(f) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTSHRINK, FAIL, "can't shrink eoa") /* At this point, the EOA should be set to a value that contains * the allocation for all user data, all non self referential FSMs, * the superblock and all superblock extension messages. * * Make note of the current EOA. We will store this value in the * free space manager superblock extension message. Since space for * everything other than the self referential FSMs (and possibly the * cache image) has been allocated at this point, this allows us to * to float the self referential FSMs on the first file space allocation / * deallocation and then set the EOA to this value before we handle * the allocation / deallocation. (If a cache image exists, the * first allocation / deallocation will be the deallocation of space * for the cache image). * * WARNING: This approach settling the self referential free space * managers and allocating space for them in the file will * not work as currently implemented with the split and * multi file drivers, as the self referential free space * manager header and section info can be stored in up to * two different files -- requiring that up to two EOA's * be stored in the the free space managers super block * extension message. * * As of this writing, we are solving this problem by * simply not supporting persistent FSMs with the split * and multi file drivers. * * Current plans are to do away with the multi file * driver, so this should be a non-issue in this case. * * We should be able to support the split file driver * without a file format change. However, the code to * do so does not exist at present. */ /* ******************* PROBLEM: ******************** * * If the file has an alignment other than 1, and if * the EOA is not a multiple of this alignment, allocating space * for the section via the VFD info has the potential of generating * a fragment that will be added to the free space manager. This * of course undoes everything we have been doing here. * * Need a way around this. Obvious solution is to force the EOA to * be a multiple of the alignment. * * Fortunately, alignment is typically 1, so this is a non-issue in * most cases. In cases where the alignment is not 1, for now we * have decided to drop the fragment on the floor. * * Eventually, we should fix this by modifying the on disk representations * of free space managers to allow for empty space, so as to bypass the * issues created by self-referential free space managers, and make * this issue moot. */ /* HDassert(f->shared->alignment == 1); */ /* The free space manager(s) that handle space allocations for free * space managers should be settled now, albeit without file space * allocated to them. To avoid the possibility of changing the sizes * of their section info blocks, allocate space for them now at the * end of file via H5FD_alloc(). * * In the past, this issue of allocating space without touching the * free space managers has been dealt with by calling * H5MF_aggr_vfd_alloc(), which in turn calls H5MF_aggr_alloc(). * This is problematic since (if I read the code correctly) it will * re-constitute the metadata aggregator, which will add any leftover * space to one of the free space managers when freed. * * This is a non-starter, since the entire objective is to settle the * free space managers. * * Hence the decision to call H5FD_alloc() directly. * * As discussed in PROBLEM above, if f->shared->alignment is not 1, * this has the possibility of generating a fragment of file space * that would typically be inserted into one of the free space managers. * * This is isn't good, but due to schedule pressure, we will just drop * the fragment on the floor for now. */ do { continue_alloc_fsm = FALSE; if(sm_hdr_fspace) if(H5FS_vfd_alloc_hdr_and_section_info_if_needed(f, sm_hdr_fspace, &(f->shared->fs_addr[sm_fshdr_fs_type])) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "can't vfd allocate sm hdr FSM file space") if(sm_sinfo_fspace && (sm_sinfo_fspace != sm_hdr_fspace)) if(H5FS_vfd_alloc_hdr_and_section_info_if_needed(f, sm_sinfo_fspace, &(f->shared->fs_addr[sm_fssinfo_fs_type])) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "can't vfd allocate sm sinfo FSM file space") if(H5F_PAGED_AGGR(f)) { if(lg_hdr_fspace) if(H5FS_vfd_alloc_hdr_and_section_info_if_needed(f, lg_hdr_fspace, &(f->shared->fs_addr[lg_fshdr_fs_type])) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "can't vfd allocate lg hdr FSM file space") if(lg_sinfo_fspace && (lg_sinfo_fspace != lg_hdr_fspace)) if(H5FS_vfd_alloc_hdr_and_section_info_if_needed(f, lg_sinfo_fspace, &(f->shared->fs_addr[lg_fssinfo_fs_type])) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "can't vfd allocate lg sinfo FSM file space") } /* end if */ sm_hdr_fspace = f->shared->fs_man[sm_fshdr_fs_type]; sm_sinfo_fspace = f->shared->fs_man[sm_fssinfo_fs_type]; if(H5F_PAGED_AGGR(f)) { lg_hdr_fspace = f->shared->fs_man[lg_fshdr_fs_type]; lg_sinfo_fspace = f->shared->fs_man[lg_fssinfo_fs_type]; } if(H5MF__continue_alloc_fsm(f, sm_hdr_fspace, sm_sinfo_fspace, lg_hdr_fspace, lg_sinfo_fspace, &continue_alloc_fsm) < 0) HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "can't vfd allocate lg sinfo FSM file space") } while(continue_alloc_fsm); /* All free space managers should have file space allocated for them * now, and should see no further allocations / deallocations. Store * the pre and post file space allocation for self referential FSMs EOA * for use when we actually write the free space manager superblock * extension message. */ /* Get the eoa after allocation of file space for the self referential * free space managers. Assuming no cache image, this should be the * final EOA of the file. */ if(HADDR_UNDEF == (eoa_fsm_fsalloc = H5FD_get_eoa(f->shared->lf, H5FD_MEM_DEFAULT))) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get file size") f->shared->eoa_fsm_fsalloc = eoa_fsm_fsalloc; /* Indicate that the FSM was settled successfully */ *fsm_settled = TRUE; } /* end if */ done: /* Reset the ring in the API context */ if(orig_ring != H5AC_RING_INV) H5AC_set_ring(orig_ring, NULL); FUNC_LEAVE_NOAPI_TAG(ret_value) } /* H5MF_settle_meta_data_fsm() */ /*------------------------------------------------------------------------- * Function: H5MF__continue_alloc_fsm * * Purpose: To determine whether any of the input FSMs has allocated its * its "addr" and "sect_addr". * Return TRUE or FALSE in *continue_alloc_fsm. * * Return: SUCCEED/FAIL * *------------------------------------------------------------------------- */ static herr_t H5MF__continue_alloc_fsm(H5F_t *f, H5FS_t *sm_hdr_fspace, H5FS_t *sm_sinfo_fspace, H5FS_t *lg_hdr_fspace, H5FS_t *lg_sinfo_fspace, hbool_t *continue_alloc_fsm) { FUNC_ENTER_NOAPI_NOINIT_NOERR /* Sanity checks */ HDassert(f); HDassert(f->shared); HDassert(continue_alloc_fsm); /* Check sm_hdr_fspace */ if(sm_hdr_fspace && sm_hdr_fspace->serial_sect_count > 0 && sm_hdr_fspace->sinfo) { H5MF_CHECK_FSM(sm_hdr_fspace, continue_alloc_fsm); } if(!(*continue_alloc_fsm)) { if(sm_sinfo_fspace && sm_sinfo_fspace != sm_hdr_fspace && sm_sinfo_fspace->serial_sect_count > 0 && sm_sinfo_fspace->sinfo) { H5MF_CHECK_FSM(sm_hdr_fspace, continue_alloc_fsm); } } if(H5F_PAGED_AGGR(f) && !(*continue_alloc_fsm)) { /* Check lg_hdr_fspace */ if(lg_hdr_fspace && lg_hdr_fspace->serial_sect_count > 0 && lg_hdr_fspace->sinfo) { H5MF_CHECK_FSM(lg_hdr_fspace, continue_alloc_fsm); } /* Check lg_sinfo_fspace */ if(!(*continue_alloc_fsm)) { if(lg_sinfo_fspace && lg_sinfo_fspace != lg_hdr_fspace && lg_sinfo_fspace->serial_sect_count > 0 && lg_sinfo_fspace->sinfo) { H5MF_CHECK_FSM(lg_sinfo_fspace, continue_alloc_fsm); } } } FUNC_LEAVE_NOAPI(SUCCEED) } /* H5MF__continue_alloc_fsm() */ /*------------------------------------------------------------------------- * Function: H5MF__fsm_type_is_self_referential() * * Purpose: Return TRUE if the indicated free space manager allocates * file space for free space managers. Return FALSE otherwise. * * Return: TRUE/FALSE * * Programmer: John Mainzer * 12/6/16 * *------------------------------------------------------------------------- */ hbool_t H5MF__fsm_type_is_self_referential(H5F_t *f, H5F_mem_page_t fsm_type) { H5F_mem_page_t sm_fshdr_fsm; H5F_mem_page_t sm_fssinfo_fsm; H5F_mem_page_t lg_fshdr_fsm; H5F_mem_page_t lg_fssinfo_fsm; hbool_t result = FALSE; FUNC_ENTER_PACKAGE_NOERR /* Sanity check */ HDassert(f); HDassert(f->shared); HDassert(fsm_type >= H5F_MEM_PAGE_DEFAULT); HDassert(fsm_type < H5F_MEM_PAGE_NTYPES); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fsm); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fsm); if(H5F_PAGED_AGGR(f)) { H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fsm); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fsm); result = (fsm_type == sm_fshdr_fsm) || (fsm_type == sm_fssinfo_fsm) || (fsm_type == lg_fshdr_fsm) || (fsm_type == lg_fssinfo_fsm); } /* end if */ else { /* In principle, fsm_type should always be less than * H5F_MEM_PAGE_LARGE_SUPER whenever paged aggregation * is not enabled. However, since there is code that does * not observe this principle, force the result to FALSE if * fsm_type is greater than or equal to H5F_MEM_PAGE_LARGE_SUPER. */ if(fsm_type >= H5F_MEM_PAGE_LARGE_SUPER) result = FALSE; else result = (fsm_type == sm_fshdr_fsm) || (fsm_type == sm_fssinfo_fsm); } /* end else */ FUNC_LEAVE_NOAPI(result) } /* H5MF__fsm_type_is_self_referential() */ /*------------------------------------------------------------------------- * Function: H5MF__fsm_is_self_referential() * * Purpose: Return TRUE if the indicated free space manager allocates * file space for free space managers. Return FALSE otherwise. * * Return: TRUE/FALSE * * Programmer: John Mainzer * 12/6/16 * *------------------------------------------------------------------------- */ static hbool_t H5MF__fsm_is_self_referential(H5F_t *f, H5FS_t *fspace) { H5F_mem_page_t sm_fshdr_fsm; H5F_mem_page_t sm_fssinfo_fsm; hbool_t result = FALSE; FUNC_ENTER_STATIC_NOERR /* Sanity check */ HDassert(f); HDassert(f->shared); HDassert(fspace); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, (size_t)1, &sm_fshdr_fsm); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, (size_t)1, &sm_fssinfo_fsm); if(H5F_PAGED_AGGR(f)) { H5F_mem_page_t lg_fshdr_fsm; H5F_mem_page_t lg_fssinfo_fsm; H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_HDR, f->shared->fs_page_size + 1, &lg_fshdr_fsm); H5MF__alloc_to_fs_type(f, H5FD_MEM_FSPACE_SINFO, f->shared->fs_page_size + 1, &lg_fssinfo_fsm); result = (fspace == f->shared->fs_man[sm_fshdr_fsm]) || (fspace == f->shared->fs_man[sm_fssinfo_fsm]) || (fspace == f->shared->fs_man[lg_fshdr_fsm]) || (fspace == f->shared->fs_man[lg_fssinfo_fsm]); } /* end if */ else result = (fspace == f->shared->fs_man[sm_fshdr_fsm]) || (fspace == f->shared->fs_man[sm_fssinfo_fsm]); FUNC_LEAVE_NOAPI(result) } /* H5MF__fsm_is_self_referential() */