/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /****************/ /* Module Setup */ /****************/ #include "H5Fmodule.h" /* This source code file is part of the H5F module */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5ACprivate.h" /* Metadata cache */ #include "H5Eprivate.h" /* Error handling */ #include "H5Fpkg.h" /* File access */ #include "H5FDprivate.h" /* File drivers */ #include "H5Iprivate.h" /* IDs */ #include "H5MFprivate.h" /* File memory management */ #include "H5MMprivate.h" /* Memory management */ #include "H5Pprivate.h" /* Property lists */ #include "H5SMprivate.h" /* Shared Object Header Messages */ /****************/ /* Local Macros */ /****************/ /******************/ /* Local Typedefs */ /******************/ /********************/ /* Package Typedefs */ /********************/ /********************/ /* Local Prototypes */ /********************/ static herr_t H5F_super_ext_create(H5F_t *f, hid_t dxpl_id, H5O_loc_t *ext_ptr); static herr_t H5F__update_super_ext_driver_msg(H5F_t *f, hid_t dxpl_id); /*********************/ /* Package Variables */ /*********************/ /*****************************/ /* Library Private Variables */ /*****************************/ /* Declare a free list to manage the H5F_super_t struct */ H5FL_DEFINE(H5F_super_t); /*******************/ /* Local Variables */ /*******************/ /*------------------------------------------------------------------------- * Function: H5F_super_ext_create * * Purpose: Create the superblock extension * * Return: Success: non-negative on success * Failure: Negative * * Programmer: Vailin Choi; Feb 2009 * *------------------------------------------------------------------------- */ static herr_t H5F_super_ext_create(H5F_t *f, hid_t dxpl_id, H5O_loc_t *ext_ptr) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* Sanity check */ HDassert(f); HDassert(f->shared); HDassert(f->shared->sblock); HDassert(!H5F_addr_defined(f->shared->sblock->ext_addr)); HDassert(ext_ptr); /* Check for older version of superblock format that can't support superblock extensions */ if(f->shared->sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2) HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "superblock extension not permitted with version %u of superblock", f->shared->sblock->super_vers) else if(H5F_addr_defined(f->shared->sblock->ext_addr)) HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "superblock extension already exists?!?!") else { /* The superblock extension isn't actually a group, but the * default group creation list should work fine. * If we don't supply a size for the object header, HDF5 will * allocate H5O_MIN_SIZE by default. This is currently * big enough to hold the biggest possible extension, but should * be tuned if more information is added to the superblock * extension. */ H5O_loc_reset(ext_ptr); if(H5O_create(f, dxpl_id, (size_t)0, (size_t)1, H5P_GROUP_CREATE_DEFAULT, ext_ptr) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTCREATE, FAIL, "unable to create superblock extension") /* Record the address of the superblock extension */ f->shared->sblock->ext_addr = ext_ptr->addr; } /* end else */ done: FUNC_LEAVE_NOAPI(ret_value) } /* H5F_super_ext_create() */ /*------------------------------------------------------------------------- * Function: H5F_super_ext_open * * Purpose: Open an existing superblock extension * * Return: Success: non-negative on success * Failure: Negative * * Programmer: Vailin Choi; Feb 2009 * *------------------------------------------------------------------------- */ herr_t H5F_super_ext_open(H5F_t *f, haddr_t ext_addr, H5O_loc_t *ext_ptr) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* Sanity check */ HDassert(f); HDassert(H5F_addr_defined(ext_addr)); HDassert(ext_ptr); /* Set up "fake" object location for superblock extension */ H5O_loc_reset(ext_ptr); ext_ptr->file = f; ext_ptr->addr = ext_addr; /* Open the superblock extension object header */ if(H5O_open(ext_ptr) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTOPENOBJ, FAIL, "unable to open superblock extension") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5F_super_ext_open() */ /*------------------------------------------------------------------------- * Function: H5F_super_ext_close * * Purpose: Close superblock extension * * Return: Success: non-negative on success * Failure: Negative * * Programmer: Vailin Choi; Feb 2009 * *------------------------------------------------------------------------- */ herr_t H5F_super_ext_close(H5F_t *f, H5O_loc_t *ext_ptr, hid_t dxpl_id, hbool_t was_created) { H5P_genplist_t *dxpl = NULL; /* DXPL for setting ring */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT /* Sanity check */ HDassert(f); HDassert(ext_ptr); /* Check if extension was created */ if(was_created) { /* Set the ring type in the DXPL */ if(H5AC_set_ring(dxpl_id, H5AC_RING_SBE, &dxpl, &orig_ring) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set ring value") /* Increment link count on superblock extension's object header */ if(H5O_link(ext_ptr, 1, dxpl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_LINKCOUNT, FAIL, "unable to increment hard link count") /* Decrement refcount on superblock extension's object header in memory */ if(H5O_dec_rc_by_loc(ext_ptr, dxpl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTDEC, FAIL, "unable to decrement refcount on superblock extension"); } /* end if */ /* Twiddle the number of open objects to avoid closing the file. */ f->nopen_objs++; if(H5O_close(ext_ptr, NULL) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEOBJ, FAIL, "unable to close superblock extension") f->nopen_objs--; done: /* Reset the ring in the DXPL */ if(H5AC_reset_ring(dxpl, orig_ring) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set property value") FUNC_LEAVE_NOAPI(ret_value) } /* H5F_super_ext_close() */ /*------------------------------------------------------------------------- * Function: H5F__update_super_ext_driver_msg * * Purpose: Update the superblock extension file driver info message if * we are using a V 2 superblock. Observe that the function * is a NO-OP if the file driver info message does not exist. * This is necessary, as the function is called whenever the * EOA is updated, and were it to create the file driver info * message, it would find itself in an infinite recursion. * * Return: Success: SUCCEED * Failure: FAIL * * Programmer: John Mainzer * 11/10/15 * *------------------------------------------------------------------------- */ static herr_t H5F__update_super_ext_driver_msg(H5F_t *f, hid_t dxpl_id) { H5F_super_t *sblock; /* Pointer to the super block */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* Sanity check */ HDassert(f); HDassert(f->shared); sblock = f->shared->sblock; HDassert(sblock); HDassert(sblock->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC); HDassert(sblock->cache_info.type == H5AC_SUPERBLOCK); /* Update the driver information message in the superblock extension * if appropriate. */ if(sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2) { if(H5F_addr_defined(sblock->ext_addr)) { /* Check for ignoring the driver info for this file */ if(!H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO)) { size_t driver_size; /* Size of driver info block (bytes)*/ /* Check for driver info */ H5_CHECKED_ASSIGN(driver_size, size_t, H5FD_sb_size(f->shared->lf), hsize_t); /* Nothing to do unless there is both driver info and * the driver info superblock extension message has * already been created. */ if(driver_size > 0) { H5O_drvinfo_t drvinfo; /* Driver info */ uint8_t dbuf[H5F_MAX_DRVINFOBLOCK_SIZE]; /* Driver info block encoding buffer */ /* Sanity check */ HDassert(driver_size <= H5F_MAX_DRVINFOBLOCK_SIZE); /* Encode driver-specific data */ if(H5FD_sb_encode(f->shared->lf, drvinfo.name, dbuf) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to encode driver information") /* Write the message to the superblock extension. * * Note that the superblock extension and the * file driver info message must already exist. */ drvinfo.len = driver_size; drvinfo.buf = dbuf; if(H5F_super_ext_write_msg(f, dxpl_id, H5O_DRVINFO_ID, &drvinfo, FALSE, H5O_MSG_NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "unable to update driver info header message") } /* end if driver_size > 0 */ } /* end if !H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO) */ } /* end if superblock extension exists */ } /* end if sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2 */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5F__update_super_ext_driver_msg() */ /*------------------------------------------------------------------------- * Function: H5F__super_read * * Purpose: Reads the superblock from the file or from the BUF. If * ADDR is a valid address, then it reads it from the file. * If not, then BUF must be non-NULL for it to read from the * BUF. * * Return: Success: SUCCEED * Failure: FAIL * * Programmer: Bill Wendling * wendling@ncsa.uiuc.edu * Sept 12, 2003 * *------------------------------------------------------------------------- */ herr_t H5F__super_read(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t initial_read) { H5P_genplist_t *dxpl = NULL; /* DXPL object */ H5AC_ring_t ring, orig_ring = H5AC_RING_INV; H5F_super_t * sblock = NULL; /* Superblock structure */ H5F_superblock_cache_ud_t udata; /* User data for cache callbacks */ H5P_genplist_t *c_plist; /* File creation property list */ H5FD_io_info_t fdio_info; /* File driver I/O info */ unsigned sblock_flags = H5AC__NO_FLAGS_SET; /* flags used in superblock unprotect call */ haddr_t super_addr; /* Absolute address of superblock */ haddr_t eof; /* End of file address */ unsigned rw_flags; /* Read/write permissions for file */ hbool_t skip_eof_check = FALSE; /* Whether to skip checking the EOF value */ herr_t ret_value = SUCCEED; /* Return value */ int mpi_rank = 0, mpi_size = 1; FUNC_ENTER_PACKAGE_TAG(meta_dxpl_id, H5AC__SUPERBLOCK_TAG, FAIL) /* initialize the drvinfo to NULL -- we will overwrite this if there * is a driver information block */ f->shared->drvinfo = NULL; /* Get the DXPL plist object for DXPL ID */ if(NULL == (dxpl = (H5P_genplist_t *)H5I_object(meta_dxpl_id))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") if((H5P_get(dxpl, H5AC_RING_NAME, &orig_ring)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "unable to get property value"); /* Set up file driver I/O info */ fdio_info.file = f->shared->lf; fdio_info.meta_dxpl = dxpl; if(NULL == (fdio_info.raw_dxpl = (H5P_genplist_t *)H5I_object(raw_dxpl_id))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") /* Find the superblock */ #ifdef H5_HAVE_PARALLEL H5FD_GET_MPI_RANK_AND_SIZE(mpi_rank, mpi_size, f); /* If we are an MPI application with at least two processes, the * following superblock signature location optimization is applicable. */ if ( mpi_size > 1 ) { MPI_Comm this_comm = MPI_COMM_NULL; if ( mpi_rank == 0 ) { if(H5FD_locate_signature(&fdio_info, &super_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "unable to locate file signature") } H5FD_GET_MPI_COMM(this_comm, f); if (( this_comm == MPI_COMM_NULL ) || ( MPI_Bcast(&super_addr,sizeof(super_addr), MPI_BYTE, 0, this_comm) != MPI_SUCCESS)) HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "unable to locate file signature") } else { /* Locate the signature as per per the serial library */ #endif /* H5_HAVE_PARALLEL */ if(H5FD_locate_signature(&fdio_info, &super_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "unable to locate file signature") #ifdef H5_HAVE_PARALLEL } #endif if(HADDR_UNDEF == super_addr) HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "file signature not found") /* Check for userblock present */ if(H5F_addr_gt(super_addr, 0)) { /* Set the base address for the file in the VFD now */ if(H5F__set_base_addr(f, super_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "failed to set base address for file driver") } /* end if */ /* Determine file intent for superblock protect */ /* Must tell cache at protect time that the super block is to be * flushed last (and collectively in the parallel case). */ rw_flags = H5AC__FLUSH_LAST_FLAG; #ifdef H5_HAVE_PARALLEL rw_flags |= H5C__FLUSH_COLLECTIVELY_FLAG; #endif /* H5_HAVE_PARALLEL */ if(!(H5F_INTENT(f) & H5F_ACC_RDWR)) rw_flags |= H5AC__READ_ONLY_FLAG; /* Get the shared file creation property list */ if(NULL == (c_plist = (H5P_genplist_t *)H5I_object(f->shared->fcpl_id))) HGOTO_ERROR(H5E_FILE, H5E_BADTYPE, FAIL, "can't get property list") /* Make certain we can read the fixed-size portion of the superblock */ if(H5F__set_eoa(f, H5FD_MEM_SUPER, (haddr_t)(H5F_SUPERBLOCK_FIXED_SIZE + H5F_SUPERBLOCK_MINIMAL_VARLEN_SIZE)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "set end of space allocation request failed") /* Set up the user data for cache callbacks */ udata.f = f; udata.ignore_drvrinfo = H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO); udata.sym_leaf_k = 0; if(H5P_get(c_plist, H5F_CRT_BTREE_RANK_NAME, udata.btree_k) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get rank for btree internal nodes") udata.stored_eof = HADDR_UNDEF; udata.drvrinfo_removed = FALSE; /* Set the ring type in the DXPL */ ring = H5AC_RING_SB; if((H5P_set(dxpl, H5AC_RING_NAME, &ring)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "unable to set property value"); /* Look up the superblock */ if(NULL == (sblock = (H5F_super_t *)H5AC_protect(f, meta_dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, &udata, rw_flags))) HGOTO_ERROR(H5E_FILE, H5E_CANTPROTECT, FAIL, "unable to load superblock") if(H5F_INTENT(f) & H5F_ACC_SWMR_WRITE) if(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_3) HGOTO_ERROR(H5E_FILE, H5E_CANTPROTECT, FAIL, "invalid superblock version for SWMR_WRITE") /* Enable all latest version support when file has v3 superblock */ if(sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_3) f->shared->latest_flags |= H5F_LATEST_ALL_FLAGS; /* Pin the superblock in the cache */ if(H5AC_pin_protected_entry(sblock) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTPIN, FAIL, "unable to pin superblock") /* Mark the superblock dirty if it was modified during loading */ if(((rw_flags & H5AC__READ_ONLY_FLAG) == 0) && udata.ignore_drvrinfo && udata.drvrinfo_removed) { HDassert(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2); sblock_flags |= H5AC__DIRTIED_FLAG; } /* end if */ /* The superblock must be flushed last (and collectively in parallel) */ sblock_flags |= H5AC__FLUSH_LAST_FLAG; #ifdef H5_HAVE_PARALLEL sblock_flags |= H5AC__FLUSH_COLLECTIVELY_FLAG; #endif /* H5_HAVE_PARALLEL */ /* Check if superblock address is different from base address and adjust * base address and "end of address" address if so. */ if(!H5F_addr_eq(super_addr, sblock->base_addr)) { /* Check if the superblock moved earlier in the file */ if(H5F_addr_lt(super_addr, sblock->base_addr)) udata.stored_eof -= (sblock->base_addr - super_addr); else /* The superblock moved later in the file */ udata.stored_eof += (super_addr - sblock->base_addr); /* Adjust base address for offsets of the HDF5 data in the file */ sblock->base_addr = super_addr; /* Set the base address for the file in the VFD now */ if(H5F__set_base_addr(f, sblock->base_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "failed to set base address for file driver") /* Indicate that the superblock should be marked dirty */ if((rw_flags & H5AC__READ_ONLY_FLAG) == 0) sblock_flags |= H5AC__DIRTIED_FLAG; } /* end if */ /* Set information in the file's creation property list */ if(H5P_set(c_plist, H5F_CRT_SUPER_VERS_NAME, &sblock->super_vers) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set superblock version") if(H5P_set(c_plist, H5F_CRT_ADDR_BYTE_NUM_NAME, &sblock->sizeof_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set byte number in an address") if(H5P_set(c_plist, H5F_CRT_OBJ_BYTE_NUM_NAME, &sblock->sizeof_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set byte number for object size") /* Handle the B-tree 'K' values */ if(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2) { /* Sanity check */ HDassert(udata.sym_leaf_k != 0); /* Set the symbol table internal node 'K' value */ if(H5P_set(c_plist, H5F_CRT_SYM_LEAF_NAME, &udata.sym_leaf_k) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set rank for symbol table leaf nodes") sblock->sym_leaf_k = udata.sym_leaf_k; /* Set the B-tree internal node values, etc */ if(H5P_set(c_plist, H5F_CRT_BTREE_RANK_NAME, udata.btree_k) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set rank for btree internal nodes") HDmemcpy(sblock->btree_k, udata.btree_k, sizeof(unsigned) * (size_t)H5B_NUM_BTREE_ID); } /* end if */ else { /* Get the (default) B-tree internal node values, etc */ /* (Note: these may be reset in a superblock extension) */ if(H5P_get(c_plist, H5F_CRT_BTREE_RANK_NAME, sblock->btree_k) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get rank for btree internal nodes") if(H5P_get(c_plist, H5F_CRT_SYM_LEAF_NAME, &sblock->sym_leaf_k) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get rank for btree internal nodes") } /* end else */ /* * The user-defined data is the area of the file before the base * address. */ if(H5P_set(c_plist, H5F_CRT_USER_BLOCK_NAME, &sblock->base_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set userblock size") /* * Make sure that the data is not truncated. One case where this is * possible is if the first file of a family of files was opened * individually. */ /* Can skip this test when it is not the initial file open-- * H5F__super_read() call from H5F_evict_tagged_metadata() for * refreshing object. * When flushing file buffers and fractal heap is involved, * the library will allocate actual space for tmp addresses * via the file layer. The aggregator allocates a block, * thus the eoa might be greater than eof. * Note: the aggregator is changed again after being reset * earlier before H5AC_flush due to allocation of tmp addresses. */ /* The EOF check must be skipped when the file is opened for SWMR read, * as the file can appear truncated if only part of it has been * been flushed to disk by the SWMR writer process. */ if(H5F_INTENT(f) & H5F_ACC_SWMR_READ) { /* * When the file is opened for SWMR read access, skip the check if: * --the file is already marked for SWMR writing and * --the file has version 3 superblock for SWMR support */ if((sblock->status_flags & H5F_SUPER_SWMR_WRITE_ACCESS) && (sblock->status_flags & H5F_SUPER_WRITE_ACCESS) && sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_3) skip_eof_check = TRUE; } /* end if */ if(!skip_eof_check && initial_read) { if(HADDR_UNDEF == (eof = H5FD_get_eof(f->shared->lf, H5FD_MEM_DEFAULT))) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to determine file size") /* (Account for the stored EOA being absolute offset -QAK) */ if((eof + sblock->base_addr) < udata.stored_eof) HGOTO_ERROR(H5E_FILE, H5E_TRUNCATED, FAIL, "truncated file: eof = %llu, sblock->base_addr = %llu, stored_eof = %llu", (unsigned long long)eof, (unsigned long long)sblock->base_addr, (unsigned long long)udata.stored_eof) } /* end if */ /* * Tell the file driver how much address space has already been * allocated so that it knows how to allocate additional memory. */ /* Set the ring type in the DXPL */ ring = H5AC_RING_SBE; if((H5P_set(dxpl, H5AC_RING_NAME, &ring)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "unable to set property value"); /* Decode the optional driver information block */ if(H5F_addr_defined(sblock->driver_addr)) { H5O_drvinfo_t *drvinfo; /* Driver info */ H5F_drvrinfo_cache_ud_t drvrinfo_udata; /* User data for metadata callbacks */ unsigned drvinfo_flags = H5AC__NO_FLAGS_SET; /* Flags used in driver info block unprotect call */ /* Sanity check - driver info block should only be defined for * superblock version < 2. */ HDassert(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2); /* Set up user data */ drvrinfo_udata.f = f; drvrinfo_udata.driver_addr = sblock->driver_addr; /* extend EOA so we can read at least the fixed sized * portion of the driver info block */ if(H5FD_set_eoa(f->shared->lf, H5FD_MEM_SUPER, sblock->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE) < 0) /* will extend eoa later if required */ HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "set end of space allocation request failed") /* Look up the driver info block */ if(NULL == (drvinfo = (H5O_drvinfo_t *)H5AC_protect(f, meta_dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, &drvrinfo_udata, rw_flags))) HGOTO_ERROR(H5E_FILE, H5E_CANTPROTECT, FAIL, "unable to load driver info block") /* Loading the driver info block is enough to set up the right info */ /* Check if we need to rewrite the driver info block info */ if(((rw_flags & H5AC__READ_ONLY_FLAG) == 0) && H5F_HAS_FEATURE(f, H5FD_FEAT_DIRTY_DRVRINFO_LOAD)) drvinfo_flags |= H5AC__DIRTIED_FLAG; /* set the pin entry flag so that the driver information block * cache entry will be pinned in the cache. */ drvinfo_flags |= H5AC__PIN_ENTRY_FLAG; /* Release the driver info block */ if(H5AC_unprotect(f, meta_dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, drvinfo, drvinfo_flags) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTUNPROTECT, FAIL, "unable to release driver info block") /* save a pointer to the driver information cache entry */ f->shared->drvinfo = drvinfo; } /* end if */ /* (Account for the stored EOA being absolute offset -NAF) */ if(H5F__set_eoa(f, H5FD_MEM_DEFAULT, udata.stored_eof - sblock->base_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set end-of-address marker for file") /* Decode the optional superblock extension info */ if(H5F_addr_defined(sblock->ext_addr)) { H5O_loc_t ext_loc; /* "Object location" for superblock extension */ H5O_btreek_t btreek; /* v1 B-tree 'K' value message from superblock extension */ H5O_drvinfo_t drvinfo; /* Driver info message from superblock extension */ size_t u; /* Local index variable */ htri_t status; /* Status for message existing */ /* Sanity check - superblock extension should only be defined for * superblock version >= 2. */ HDassert(sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2); /* Check for superblock extension being located "outside" the stored * 'eoa' value, which can occur with the split/multi VFD. */ if(H5F_addr_gt(sblock->ext_addr, udata.stored_eof)) { /* Set the 'eoa' for the object header memory type large enough * to give some room for a reasonably sized superblock extension. * (This is _rather_ a kludge -QAK) */ if(H5F__set_eoa(f, H5FD_MEM_OHDR, (haddr_t)(sblock->ext_addr + 1024)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set end-of-address marker for file") } /* end if */ /* Open the superblock extension */ if(H5F_super_ext_open(f, sblock->ext_addr, &ext_loc) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENOBJ, FAIL, "unable to open file's superblock extension") /* Check for the extension having a 'driver info' message */ if((status = H5O_msg_exists(&ext_loc, H5O_DRVINFO_ID, meta_dxpl_id)) < 0) HGOTO_ERROR(H5E_FILE, H5E_EXISTS, FAIL, "unable to read object header") if(status) { /* Check for ignoring the driver info for this file */ if(!udata.ignore_drvrinfo) { /* Retrieve the 'driver info' structure */ if(NULL == H5O_msg_read(&ext_loc, H5O_DRVINFO_ID, &drvinfo, meta_dxpl_id)) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "driver info message not present") /* Validate and decode driver information */ if(H5FD_sb_load(f->shared->lf, drvinfo.name, drvinfo.buf) < 0) { H5O_msg_reset(H5O_DRVINFO_ID, &drvinfo); HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, FAIL, "unable to decode driver information") } /* end if */ /* Reset driver info message */ H5O_msg_reset(H5O_DRVINFO_ID, &drvinfo); HDassert(FALSE == f->shared->drvinfo_sb_msg_exists); f->shared->drvinfo_sb_msg_exists = TRUE; } /* end else */ } /* end if */ /* Read in the shared OH message information if there is any */ if(H5SM_get_info(&ext_loc, c_plist, meta_dxpl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to read SOHM table information") /* Check for the extension having a 'v1 B-tree "K"' message */ if((status = H5O_msg_exists(&ext_loc, H5O_BTREEK_ID, meta_dxpl_id)) < 0) HGOTO_ERROR(H5E_FILE, H5E_EXISTS, FAIL, "unable to read object header") if(status) { /* Retrieve the 'v1 B-tree "K"' structure */ if(NULL == H5O_msg_read(&ext_loc, H5O_BTREEK_ID, &btreek, meta_dxpl_id)) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "v1 B-tree 'K' info message not present") /* Set non-default v1 B-tree 'K' value info from file */ sblock->btree_k[H5B_CHUNK_ID] = btreek.btree_k[H5B_CHUNK_ID]; sblock->btree_k[H5B_SNODE_ID] = btreek.btree_k[H5B_SNODE_ID]; sblock->sym_leaf_k = btreek.sym_leaf_k; /* Set non-default v1 B-tree 'K' values in the property list */ if(H5P_set(c_plist, H5F_CRT_BTREE_RANK_NAME, btreek.btree_k) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set rank for btree internal nodes") if(H5P_set(c_plist, H5F_CRT_SYM_LEAF_NAME, &btreek.sym_leaf_k) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set rank for symbol table leaf nodes") } /* end if */ /* Check for the extension having a 'free-space manager info' message */ if((status = H5O_msg_exists(&ext_loc, H5O_FSINFO_ID, meta_dxpl_id)) < 0) HGOTO_ERROR(H5E_FILE, H5E_EXISTS, FAIL, "unable to read object header") if(status) { H5O_fsinfo_t fsinfo; /* File space info message from superblock extension */ uint8_t flags; /* Message flags */ /* Get message flags */ if(H5O_msg_get_flags(&ext_loc, H5O_FSINFO_ID, meta_dxpl_id, &flags) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to message flags for free-space manager info message") /* If message is NOT marked "unknown"--set up file space info */ if(!(flags & H5O_MSG_FLAG_WAS_UNKNOWN)) { /* Retrieve the 'file space info' structure */ if(NULL == H5O_msg_read(&ext_loc, H5O_FSINFO_ID, &fsinfo, meta_dxpl_id)) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get free-space manager info message") /* Update changed values */ if(f->shared->fs_strategy != fsinfo.strategy) { f->shared->fs_strategy = fsinfo.strategy; /* Set non-default strategy in the property list */ if(H5P_set(c_plist, H5F_CRT_FILE_SPACE_STRATEGY_NAME, &fsinfo.strategy) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set file space strategy") } /* end if */ if(f->shared->fs_persist != fsinfo.persist) { f->shared->fs_persist = fsinfo.persist; /* Set non-default strategy in the property list */ if(H5P_set(c_plist, H5F_CRT_FREE_SPACE_PERSIST_NAME, &fsinfo.persist) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set file space strategy") } /* end if */ if(f->shared->fs_threshold != fsinfo.threshold) { f->shared->fs_threshold = fsinfo.threshold; /* Set non-default threshold in the property list */ if(H5P_set(c_plist, H5F_CRT_FREE_SPACE_THRESHOLD_NAME, &fsinfo.threshold) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set file space strategy") } /* end if */ HDassert(f->shared->fs_page_size >= H5F_FILE_SPACE_PAGE_SIZE_MIN); HDassert(fsinfo.page_size >= H5F_FILE_SPACE_PAGE_SIZE_MIN); if(f->shared->fs_page_size != fsinfo.page_size) { f->shared->fs_page_size = fsinfo.page_size; /* Set file space page size in the property list */ if(H5P_set(c_plist, H5F_CRT_FILE_SPACE_PAGE_SIZE_NAME, &fsinfo.page_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set file space page size") } /* end if */ if(f->shared->pgend_meta_thres != fsinfo.pgend_meta_thres) /* Initialize page end meta threshold */ f->shared->pgend_meta_thres = fsinfo.pgend_meta_thres; if(f->shared->eoa_pre_fsm_fsalloc != fsinfo.eoa_pre_fsm_fsalloc) f->shared->eoa_pre_fsm_fsalloc = fsinfo.eoa_pre_fsm_fsalloc; /* f->shared->eoa_pre_fsm_fsalloc must always be HADDR_UNDEF * in the absence of persistant free space managers. */ HDassert((!f->shared->fs_persist) || (f->shared->eoa_pre_fsm_fsalloc != HADDR_UNDEF)); HDassert(!f->shared->first_alloc_dealloc); if((f->shared->eoa_pre_fsm_fsalloc != HADDR_UNDEF) && (H5F_INTENT(f) & H5F_ACC_RDWR)) f->shared->first_alloc_dealloc = TRUE; f->shared->fs_addr[0] = HADDR_UNDEF; for(u = 1; u < NELMTS(f->shared->fs_addr); u++) f->shared->fs_addr[u] = fsinfo.fs_addr[u - 1]; if(fsinfo.mapped && (rw_flags & H5AC__READ_ONLY_FLAG) == 0) { /* Do the same kluge until we know for sure. VC */ #if 1 /* bug fix test code -- tidy this up if all goes well */ /* JRM */ /* KLUGE ALERT!! * * H5F_super_ext_write_msg() expects f->shared->sblock to * be set -- verify that it is NULL, and then set it. * Set it back to NULL when we are done. */ HDassert(f->shared->sblock == NULL); f->shared->sblock = sblock; #endif /* JRM */ if(H5F_super_ext_remove_msg(f, meta_dxpl_id, H5O_FSINFO_ID) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTDELETE, FAIL, "error in removing message from superblock extension") if(H5F_super_ext_write_msg(f, meta_dxpl_id, H5O_FSINFO_ID, &fsinfo, TRUE, H5O_MSG_FLAG_MARK_IF_UNKNOWN) < 0) HGOTO_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "error in writing fsinfo message to superblock extension") #if 1 /* bug fix test code -- tidy this up if all goes well */ /* JRM */ f->shared->sblock = NULL; #endif /* JRM */ } } /* end if not marked "unknown" */ } /* end if */ /* Check for the extension having a 'metadata cache image' message */ if((status = H5O_msg_exists(&ext_loc, H5O_MDCI_MSG_ID, meta_dxpl_id)) < 0) HGOTO_ERROR(H5E_FILE, H5E_EXISTS, FAIL, "unable to read object header") if(status) { hbool_t rw = ((rw_flags & H5AC__READ_ONLY_FLAG) == 0); H5O_mdci_t mdci_msg; /* if the metadata cache image superblock extension message exists, * read its contents and pass the data on to the metadata cache. * Given this data, the cache will load and decode the metadata * cache image block, decoded it and load its contents into the * the cache on the test protect call. * * Further, if the file is opened R/W, the metadata cache will * delete the metadata cache image superblock extension and free * the cache image block. Don't do this now as f->shared * is not fully setup, which complicates matters. */ /* Retrieve the 'metadata cache image message' structure */ if(NULL == H5O_msg_read(&ext_loc, H5O_MDCI_MSG_ID, &mdci_msg, meta_dxpl_id)) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get metadata cache image message") /* Indicate to the cache that there's an image to load on first protect call */ if(H5AC_load_cache_image_on_next_protect(f, mdci_msg.addr, mdci_msg.size, rw) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTLOAD, FAIL, "call to H5AC_load_cache_image_on_next_protect failed"); } /* end if */ /* Close superblock extension */ if(H5F_super_ext_close(f, &ext_loc, meta_dxpl_id, FALSE) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEOBJ, FAIL, "unable to close file's superblock extension") } /* end if */ /* Update the driver info if VFD indicated to do so */ /* (NOTE: only for later versions of superblock, earlier versions are handled * earlier in this routine. */ if(((rw_flags & H5AC__READ_ONLY_FLAG) == 0) && sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2 && H5F_addr_defined(sblock->ext_addr)) { /* Check for modifying the driver info when opening the file */ if(H5F_HAS_FEATURE(f, H5FD_FEAT_DIRTY_DRVRINFO_LOAD)) { size_t driver_size; /* Size of driver info block (bytes) */ /* Check for driver info message */ H5_CHECKED_ASSIGN(driver_size, size_t, H5FD_sb_size(f->shared->lf), hsize_t); if(driver_size > 0) { H5O_drvinfo_t drvinfo; /* Driver info */ uint8_t dbuf[H5F_MAX_DRVINFOBLOCK_SIZE]; /* Driver info block encoding buffer */ /* Sanity check */ HDassert(driver_size <= H5F_MAX_DRVINFOBLOCK_SIZE); /* Encode driver-specific data */ if(H5FD_sb_encode(f->shared->lf, drvinfo.name, dbuf) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to encode driver information") /* Set the driver info information for the superblock extension */ drvinfo.len = driver_size; drvinfo.buf = dbuf; /* Write driver info information to the superblock extension */ #if 1 /* bug fix test code -- tidy this up if all goes well */ /* JRM */ /* KLUGE ALERT!! * * H5F_super_ext_write_msg() expects f->shared->sblock to * be set -- verify that it is NULL, and then set it. * Set it back to NULL when we are done. */ HDassert(f->shared->sblock == NULL); f->shared->sblock = sblock; #endif /* JRM */ if(H5F_super_ext_write_msg(f, meta_dxpl_id, H5O_DRVINFO_ID, &drvinfo, FALSE, H5O_MSG_NO_FLAGS_SET) < 0) HGOTO_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "error in writing message to superblock extension") #if 1 /* bug fix test code -- tidy this up if all goes well */ /* JRM */ f->shared->sblock = NULL; #endif /* JRM */ } /* end if */ } /* end if */ /* Check for eliminating the driver info block */ else if(H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO)) { /* Remove the driver info message from the superblock extension */ if(H5F_super_ext_remove_msg(f, meta_dxpl_id, H5O_DRVINFO_ID) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "error in removing message from superblock extension") /* Check if the superblock extension was removed */ if(!H5F_addr_defined(sblock->ext_addr)) sblock_flags |= H5AC__DIRTIED_FLAG; } /* end if */ } /* end if */ /* Set the pointer to the pinned superblock */ f->shared->sblock = sblock; /* Set the page aggregation mode */ if(H5F__set_paged_aggr(f, (hbool_t)H5F_PAGED_AGGR(f)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "failed to set paged_aggr status for file driver") done: /* Reset the ring in the DXPL */ if(H5AC_reset_ring(dxpl, orig_ring) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set property value") /* Release the superblock */ if(sblock && H5AC_unprotect(f, meta_dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, sblock, sblock_flags) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTUNPROTECT, FAIL, "unable to close superblock") /* If we have failed, make sure no entries are left in the * metadata cache, so that it can be shut down and discarded. */ if(ret_value < 0) { /* Unpin and discard drvinfo cache entry */ if(f->shared->drvinfo) { if(H5AC_unpin_entry(f->shared->drvinfo) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTUNPIN, FAIL, "unable to unpin driver info") /* Evict the driver info block from the cache */ if(H5AC_expunge_entry(f, meta_dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTEXPUNGE, FAIL, "unable to expunge driver info block") } /* end if */ /* Unpin & discard superblock */ if(sblock) { /* Unpin superblock in cache */ if(H5AC_unpin_entry(sblock) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTUNPIN, FAIL, "unable to unpin superblock") /* Evict the superblock from the cache */ if(H5AC_expunge_entry(f, meta_dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTEXPUNGE, FAIL, "unable to expunge superblock") } /* end if */ } /* end if */ FUNC_LEAVE_NOAPI_TAG(ret_value, FAIL) } /* end H5F__super_read() */ /*------------------------------------------------------------------------- * Function: H5F__super_init * * Purpose: Allocates the superblock for the file and initializes * information about the superblock in memory. Writes extension * messages if any are needed. * * Return: Success: SUCCEED * Failure: FAIL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Sept 15, 2003 * *------------------------------------------------------------------------- */ herr_t H5F__super_init(H5F_t *f, hid_t dxpl_id) { H5F_super_t *sblock = NULL; /* Superblock cache structure */ hbool_t sblock_in_cache = FALSE; /* Whether the superblock has been inserted into the metadata cache */ H5O_drvinfo_t *drvinfo = NULL; /* Driver info */ hbool_t drvinfo_in_cache = FALSE; /* Whether the driver info block has been inserted into the metadata cache */ H5P_genplist_t *plist; /* File creation property list */ H5P_genplist_t *dxpl = NULL; H5AC_ring_t ring, orig_ring = H5AC_RING_INV; hsize_t userblock_size; /* Size of userblock, in bytes */ hsize_t superblock_size; /* Size of superblock, in bytes */ size_t driver_size; /* Size of driver info block (bytes) */ unsigned super_vers = HDF5_SUPERBLOCK_VERSION_DEF; /* Superblock version for file */ H5O_loc_t ext_loc; /* Superblock extension object location */ hbool_t need_ext; /* Whether the superblock extension is needed */ hbool_t ext_created = FALSE; /* Whether the extension has been created */ hbool_t non_default_fs_settings = FALSE; /* Whether the file has non-default free-space settings */ herr_t ret_value = SUCCEED; /* Return Value */ FUNC_ENTER_PACKAGE_TAG(dxpl_id, H5AC__SUPERBLOCK_TAG, FAIL) /* Allocate space for the superblock */ if(NULL == (sblock = H5FL_CALLOC(H5F_super_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") /* Initialize various address information */ sblock->base_addr = HADDR_UNDEF; sblock->ext_addr = HADDR_UNDEF; sblock->driver_addr = HADDR_UNDEF; sblock->root_addr = HADDR_UNDEF; /* Get the shared file creation property list */ if(NULL == (plist = (H5P_genplist_t *)H5I_object(f->shared->fcpl_id))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") /* Initialize sym_leaf_k */ if(H5P_get(plist, H5F_CRT_SYM_LEAF_NAME, &sblock->sym_leaf_k) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get byte number for object size") /* Initialize btree_k */ if(H5P_get(plist, H5F_CRT_BTREE_RANK_NAME, &sblock->btree_k[0]) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "unable to get rank for btree internal nodes") /* Check for non-default free-space settings */ if(!(f->shared->fs_strategy == H5F_FILE_SPACE_STRATEGY_DEF && f->shared->fs_persist == H5F_FREE_SPACE_PERSIST_DEF && f->shared->fs_threshold == H5F_FREE_SPACE_THRESHOLD_DEF && f->shared->fs_page_size == H5F_FILE_SPACE_PAGE_SIZE_DEF)) non_default_fs_settings = TRUE; /* Bump superblock version if latest superblock version support is enabled */ if(H5F_USE_LATEST_FLAGS(f, H5F_LATEST_SUPERBLOCK)) super_vers = HDF5_SUPERBLOCK_VERSION_LATEST; /* Bump superblock version to use version 3 superblock for SWMR writing */ else if((H5F_INTENT(f) & H5F_ACC_SWMR_WRITE)) super_vers = HDF5_SUPERBLOCK_VERSION_3; /* Bump superblock version to create superblock extension for SOHM info */ else if(f->shared->sohm_nindexes > 0) super_vers = HDF5_SUPERBLOCK_VERSION_2; /* * Bump superblock version to create superblock extension for: * -- non-default file space strategy or * -- non-default persisting free-space or * -- non-default free-space threshold or * -- non-default page_size */ else if(non_default_fs_settings) super_vers = HDF5_SUPERBLOCK_VERSION_2; /* Check for non-default indexed storage B-tree internal 'K' value * and set the version # of the superblock to 1 if it is a non-default * value. */ else if(sblock->btree_k[H5B_CHUNK_ID] != HDF5_BTREE_CHUNK_IK_DEF) super_vers = HDF5_SUPERBLOCK_VERSION_1; /* If a newer superblock version is required, set it here */ if(super_vers != HDF5_SUPERBLOCK_VERSION_DEF) { H5P_genplist_t *c_plist; /* Property list */ if(NULL == (c_plist = (H5P_genplist_t *)H5I_object(f->shared->fcpl_id))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not property list") if(H5P_set(c_plist, H5F_CRT_SUPER_VERS_NAME, &super_vers) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "unable to set superblock version") } /* end if */ if(H5FD_set_paged_aggr(f->shared->lf, (hbool_t)H5F_PAGED_AGGR(f)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to set paged_aggr status for file driver") /* * The superblock starts immediately after the user-defined * header, which we have already insured is a proper size. The * base address is set to the same thing as the superblock for * now. */ if(H5P_get(plist, H5F_CRT_USER_BLOCK_NAME, &userblock_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get userblock size") /* Sanity check the userblock size vs. the file's allocation alignment */ if(userblock_size > 0) { /* Set up the alignment to use for page or aggr fs */ hsize_t alignment = H5F_PAGED_AGGR(f) ? f->shared->fs_page_size : f->shared->alignment; if(userblock_size < alignment) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "userblock size must be > file object alignment") if(0 != (userblock_size % alignment)) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "userblock size must be an integral multiple of file object alignment") } /* end if */ sblock->base_addr = userblock_size; sblock->status_flags = 0; /* Reserve space for the userblock */ if(H5F__set_eoa(f, H5FD_MEM_SUPER, userblock_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to set EOA value for userblock") /* Set the base address for the file in the VFD now, after allocating * space for userblock. */ if(H5F__set_base_addr(f, sblock->base_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to set base address for file driver") /* Save a local copy of the superblock version number, size of addresses & offsets */ sblock->super_vers = super_vers; sblock->sizeof_addr = f->shared->sizeof_addr; sblock->sizeof_size = f->shared->sizeof_size; /* Compute the size of the superblock */ superblock_size = (hsize_t)H5F_SUPERBLOCK_SIZE(sblock); /* Compute the size of the driver information block */ H5_CHECKED_ASSIGN(driver_size, size_t, H5FD_sb_size(f->shared->lf), hsize_t); /* The following code sets driver_size to the valued needed * for the driver info block, and sets the driver info block * address regardless of the version of the superblock. */ if(driver_size > 0) { /* Add in the driver info header, for older superblocks */ /* Superblock versions >= 2 will put the driver info in a message * and don't need the header -QAK, 1/4/2017 */ if(super_vers < HDF5_SUPERBLOCK_VERSION_2) driver_size += H5F_DRVINFOBLOCK_HDR_SIZE; /* * The file driver information block begins immediately after the * superblock. (relative to base address in file) */ sblock->driver_addr = superblock_size; } /* end if */ /* * Allocate space for the superblock & driver info block. * We do it with one allocation request because the superblock needs to be * at the beginning of the file and only the first allocation request is * required to return memory at format address zero. */ if(super_vers < HDF5_SUPERBLOCK_VERSION_2) superblock_size += driver_size; /* Set the ring type in the DXPL */ if(H5AC_set_ring(dxpl_id, H5AC_RING_SB, &dxpl, &orig_ring) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set ring value") /* Insert superblock into cache, pinned */ if(H5AC_insert_entry(f, dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, sblock, H5AC__PIN_ENTRY_FLAG | H5AC__FLUSH_LAST_FLAG | H5AC__FLUSH_COLLECTIVELY_FLAG) < 0) HGOTO_ERROR(H5E_CACHE, H5E_CANTINS, FAIL, "can't add superblock to cache") sblock_in_cache = TRUE; /* Keep a copy of the superblock info */ f->shared->sblock = sblock; /* Allocate space for the superblock */ if(HADDR_UNDEF == H5MF_alloc(f, H5FD_MEM_SUPER, dxpl_id, superblock_size)) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "file allocation failed for superblock") /* set the drvinfo filed to NULL -- will overwrite this later if needed */ f->shared->drvinfo = NULL; /* * Determine if we will need a superblock extension */ /* Files with SOHM indices always need the superblock extension */ if(f->shared->sohm_nindexes > 0) { HDassert(super_vers >= HDF5_SUPERBLOCK_VERSION_2); need_ext = TRUE; } /* end if */ /* Files with non-default free space settings always need the superblock extension */ else if(non_default_fs_settings) { HDassert(super_vers >= HDF5_SUPERBLOCK_VERSION_2); need_ext = TRUE; } /* end if */ /* If we're going to use a version of the superblock format which allows * for the superblock extension, check for non-default values to store * in it. */ else if(super_vers >= HDF5_SUPERBLOCK_VERSION_2) { /* Check for non-default v1 B-tree 'K' values to store */ if(sblock->btree_k[H5B_SNODE_ID] != HDF5_BTREE_SNODE_IK_DEF || sblock->btree_k[H5B_CHUNK_ID] != HDF5_BTREE_CHUNK_IK_DEF || sblock->sym_leaf_k != H5F_CRT_SYM_LEAF_DEF) need_ext = TRUE; /* Check for driver info to store */ else if(driver_size > 0) need_ext = TRUE; else need_ext = FALSE; } /* end if */ else need_ext = FALSE; /* Set the ring type in the DXPL */ ring = H5AC_RING_SBE; if((H5P_set(dxpl, H5AC_RING_NAME, &ring)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "unable to set property value") /* Create the superblock extension for "extra" superblock data, if necessary. */ if(need_ext) { /* The superblock extension isn't actually a group, but the * default group creation list should work fine. * If we don't supply a size for the object header, HDF5 will * allocate H5O_MIN_SIZE by default. This is currently * big enough to hold the biggest possible extension, but should * be tuned if more information is added to the superblock * extension. */ if(H5F_super_ext_create(f, dxpl_id, &ext_loc) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "unable to create superblock extension") ext_created = TRUE; /* Create the Shared Object Header Message table and register it with * the metadata cache, if this file supports shared messages. */ if(f->shared->sohm_nindexes > 0) { /* Initialize the shared message code & write the SOHM message to the extension */ if(H5SM_init(f, plist, &ext_loc, dxpl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to create SOHM table") } /* end if */ /* Check for non-default v1 B-tree 'K' values to store */ if(sblock->btree_k[H5B_SNODE_ID] != HDF5_BTREE_SNODE_IK_DEF || sblock->btree_k[H5B_CHUNK_ID] != HDF5_BTREE_CHUNK_IK_DEF || sblock->sym_leaf_k != H5F_CRT_SYM_LEAF_DEF) { H5O_btreek_t btreek; /* v1 B-tree 'K' value message for superblock extension */ /* Write v1 B-tree 'K' value information to the superblock extension */ btreek.btree_k[H5B_CHUNK_ID] = sblock->btree_k[H5B_CHUNK_ID]; btreek.btree_k[H5B_SNODE_ID] = sblock->btree_k[H5B_SNODE_ID]; btreek.sym_leaf_k = sblock->sym_leaf_k; if(H5O_msg_create(&ext_loc, H5O_BTREEK_ID, H5O_MSG_FLAG_CONSTANT | H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, &btreek, dxpl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to update v1 B-tree 'K' value header message") } /* end if */ /* Check for driver info to store */ if(driver_size > 0) { H5O_drvinfo_t info; /* Driver info */ uint8_t dbuf[H5F_MAX_DRVINFOBLOCK_SIZE]; /* Driver info block encoding buffer */ /* Sanity check */ HDassert(driver_size <= H5F_MAX_DRVINFOBLOCK_SIZE); /* Encode driver-specific data */ HDmemset(dbuf, 0, sizeof(dbuf)); if(H5FD_sb_encode(f->shared->lf, info.name, dbuf) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to encode driver information") /* Write driver info information to the superblock extension */ info.len = driver_size; info.buf = dbuf; if(H5O_msg_create(&ext_loc, H5O_DRVINFO_ID, H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, &info, dxpl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to update driver info header message") HDassert(FALSE == f->shared->drvinfo_sb_msg_exists); f->shared->drvinfo_sb_msg_exists = TRUE; } /* end if */ /* Check for non-default free-space info settings */ if(non_default_fs_settings) { H5F_mem_page_t ptype; H5O_fsinfo_t fsinfo; /* Free space manager info message */ /* Write free-space manager info message to superblock extension object header if needed */ 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.mapped = FALSE; for(ptype = H5F_MEM_PAGE_SUPER; ptype < H5F_MEM_PAGE_NTYPES; H5_INC_ENUM(H5F_mem_page_t, ptype)) fsinfo.fs_addr[ptype - 1] = HADDR_UNDEF; if(H5O_msg_create(&ext_loc, H5O_FSINFO_ID, H5O_MSG_FLAG_DONTSHARE | H5O_MSG_FLAG_MARK_IF_UNKNOWN, H5O_UPDATE_TIME, &fsinfo, dxpl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to update free-space info header message") } /* end if */ } /* end if */ else { /* Check for creating an "old-style" driver info block */ if(driver_size > 0) { /* Sanity check */ HDassert(H5F_addr_defined(sblock->driver_addr)); /* Allocate space for the driver info */ if(NULL == (drvinfo = (H5O_drvinfo_t *)H5MM_calloc(sizeof(H5O_drvinfo_t)))) HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, FAIL, "memory allocation failed for driver info message") /* Set up driver info message */ /* (NOTE: All the actual information (name & driver information) is * actually based on the VFD info in the file handle and * will be encoded by the VFD's 'encode' callback, so it * doesn't need to be set here. -QAK, 7/20/2013 */ H5_CHECKED_ASSIGN(drvinfo->len, size_t, H5FD_sb_size(f->shared->lf), hsize_t); /* Insert driver info block into cache */ if(H5AC_insert_entry(f, dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, drvinfo, H5AC__PIN_ENTRY_FLAG | H5AC__FLUSH_LAST_FLAG | H5AC__FLUSH_COLLECTIVELY_FLAG) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINS, FAIL, "can't add driver info block to cache") drvinfo_in_cache = TRUE; f->shared->drvinfo = drvinfo; } /* end if */ else HDassert(!H5F_addr_defined(sblock->driver_addr)); } /* end if */ done: /* Reset the ring in the DXPL */ if(H5AC_reset_ring(dxpl, orig_ring) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set property value") /* Close superblock extension, if it was created */ if(ext_created && H5F_super_ext_close(f, &ext_loc, dxpl_id, ext_created) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "unable to close file's superblock extension") /* Cleanup on failure */ if(ret_value < 0) { /* Check if the driver info block has been allocated yet */ if(drvinfo) { /* Check if we've cached it already */ if(drvinfo_in_cache) { /* Unpin drvinfo in cache */ if(H5AC_unpin_entry(drvinfo) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTUNPIN, FAIL, "unable to unpin driver info") /* Evict the driver info block from the cache */ if(H5AC_expunge_entry(f, dxpl_id, H5AC_DRVRINFO, sblock->driver_addr, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTEXPUNGE, FAIL, "unable to expunge driver info block") } /* end if */ else /* Free driver info block */ H5MM_xfree(drvinfo); } /* end if */ /* Check if the superblock has been allocated yet */ if(sblock) { /* Check if we've cached it already */ if(sblock_in_cache) { /* Unpin superblock in cache */ if(H5AC_unpin_entry(sblock) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTUNPIN, FAIL, "unable to unpin superblock") /* Evict the superblock from the cache */ if(H5AC_expunge_entry(f, dxpl_id, H5AC_SUPERBLOCK, (haddr_t)0, H5AC__NO_FLAGS_SET) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTEXPUNGE, FAIL, "unable to expunge superblock") } /* end if */ else /* Free superblock */ if(H5F__super_free(sblock) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "unable to destroy superblock") /* Reset variables in file structure */ f->shared->sblock = NULL; } /* end if */ } /* end if */ FUNC_LEAVE_NOAPI_TAG(ret_value, FAIL) } /* end H5F__super_init() */ /*------------------------------------------------------------------------- * Function: H5F_eoa_dirty * * Purpose: Mark the file's EOA info dirty * * Return: Success: non-negative on success * Failure: Negative * * Programmer: Quincey Koziol * January 4, 2017 * *------------------------------------------------------------------------- */ herr_t H5F_eoa_dirty(H5F_t *f, hid_t dxpl_id) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Sanity check */ HDassert(f); HDassert(f->shared); HDassert(f->shared->sblock); /* Mark superblock dirty in cache, so change to EOA will get encoded */ if(H5F_super_dirty(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty") /* If the driver information block exists, mark it dirty as well * so that the change in eoa will be reflected there as well if * appropriate. */ if(f->shared->drvinfo) { if(H5AC_mark_entry_dirty(f->shared->drvinfo) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark drvinfo as dirty") } /* end if */ /* If the driver info is stored as a message, update that instead */ else if(f->shared->drvinfo_sb_msg_exists) { if(H5F__update_super_ext_driver_msg(f, dxpl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark drvinfo message as dirty") } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* H5F_eoa_dirty() */ /*------------------------------------------------------------------------- * Function: H5F_super_dirty * * Purpose: Mark the file's superblock dirty * * Return: Success: non-negative on success * Failure: Negative * * Programmer: Quincey Koziol * August 14, 2009 * *------------------------------------------------------------------------- */ herr_t H5F_super_dirty(H5F_t *f) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Sanity check */ HDassert(f); HDassert(f->shared); HDassert(f->shared->sblock); /* Mark superblock dirty in cache, so change to EOA will get encoded */ if(H5AC_mark_entry_dirty(f->shared->sblock) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5F_super_dirty() */ /*------------------------------------------------------------------------- * Function: H5F__super_free * * Purpose: Destroyer the file's superblock * * Return: Success: non-negative on success * Failure: Negative * * Programmer: Quincey Koziol * April 1, 2010 * *------------------------------------------------------------------------- */ herr_t H5F__super_free(H5F_super_t *sblock) { FUNC_ENTER_PACKAGE_NOERR /* Sanity check */ HDassert(sblock); /* Free root group symbol table entry, if any */ sblock->root_ent = (H5G_entry_t *)H5MM_xfree(sblock->root_ent); /* Free superblock */ sblock = (H5F_super_t *)H5FL_FREE(H5F_super_t, sblock); FUNC_LEAVE_NOAPI(SUCCEED) } /* H5F__super_free() */ /*------------------------------------------------------------------------- * Function: H5F__super_size * * Purpose: Get storage size of the superblock and superblock extension * * Return: Success: non-negative on success * Failure: Negative * * Programmer: Vailin Choi * July 11, 2007 * *------------------------------------------------------------------------- */ herr_t H5F__super_size(H5F_t *f, hid_t dxpl_id, hsize_t *super_size, hsize_t *super_ext_size) { H5P_genplist_t *dxpl = NULL; /* DXPL for setting ring */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* Sanity check */ HDassert(f); HDassert(f->shared); HDassert(f->shared->sblock); /* Set the superblock size */ if(super_size) *super_size = (hsize_t)H5F_SUPERBLOCK_SIZE(f->shared->sblock); /* Set the superblock extension size */ if(super_ext_size) { if(H5F_addr_defined(f->shared->sblock->ext_addr)) { H5O_loc_t ext_loc; /* "Object location" for superblock extension */ H5O_hdr_info_t hdr_info; /* Object info for superblock extension */ /* Set up "fake" object location for superblock extension */ H5O_loc_reset(&ext_loc); ext_loc.file = f; ext_loc.addr = f->shared->sblock->ext_addr; /* Set the ring type in the DXPL */ if(H5AC_set_ring(dxpl_id, H5AC_RING_SBE, &dxpl, &orig_ring) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set ring value") /* Get object header info for superblock extension */ if(H5O_get_hdr_info(&ext_loc, dxpl_id, &hdr_info) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to retrieve superblock extension info") /* Set the superblock extension size */ *super_ext_size = hdr_info.space.total; } /* end if */ else /* Set the superblock extension size to zero */ *super_ext_size = (hsize_t)0; } /* end if */ done: /* Reset the ring in the DXPL */ if(H5AC_reset_ring(dxpl, orig_ring) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set property value") FUNC_LEAVE_NOAPI(ret_value) } /* H5F__super_size() */ /*------------------------------------------------------------------------- * Function: H5F_super_ext_write_msg() * * Purpose: Write the message with ID to the superblock extension * * Return: Non-negative on success/Negative on failure * * Programmer: Vailin Choi; Feb 2009 * *------------------------------------------------------------------------- */ herr_t H5F_super_ext_write_msg(H5F_t *f, hid_t dxpl_id, unsigned id, void *mesg, hbool_t may_create, unsigned mesg_flags) { H5P_genplist_t *dxpl = NULL; /* DXPL for setting ring */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ hbool_t ext_created = FALSE; /* Whether superblock extension was created */ hbool_t ext_opened = FALSE; /* Whether superblock extension was opened */ H5O_loc_t ext_loc; /* "Object location" for superblock extension */ htri_t status; /* Indicate whether the message exists or not */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Sanity checks */ HDassert(f); HDassert(f->shared); HDassert(f->shared->sblock); /* Set the ring type in the DXPL */ if(H5AC_set_ring(dxpl_id, H5AC_RING_SBE, &dxpl, &orig_ring) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set ring value") /* Open/create the superblock extension object header */ if(H5F_addr_defined(f->shared->sblock->ext_addr)) { if(H5F_super_ext_open(f, f->shared->sblock->ext_addr, &ext_loc) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENOBJ, FAIL, "unable to open file's superblock extension") } /* end if */ else { HDassert(may_create); if(H5F_super_ext_create(f, dxpl_id, &ext_loc) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "unable to create file's superblock extension") ext_created = TRUE; } /* end else */ HDassert(H5F_addr_defined(ext_loc.addr)); ext_opened = TRUE; /* Check if message with ID does not exist in the object header */ if((status = H5O_msg_exists(&ext_loc, id, dxpl_id)) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to check object header for message or message exists") /* Check for creating vs. writing */ if(may_create) { if(status) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "Message should not exist") /* Create the message with ID in the superblock extension */ if(H5O_msg_create(&ext_loc, id, (mesg_flags | H5O_MSG_FLAG_DONTSHARE), H5O_UPDATE_TIME, mesg, dxpl_id) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to create the message in object header") } /* end if */ else { if(!status) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "Message should exist") /* Update the message with ID in the superblock extension */ if(H5O_msg_write(&ext_loc, id, (mesg_flags | H5O_MSG_FLAG_DONTSHARE), H5O_UPDATE_TIME, mesg, dxpl_id) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to write the message in object header") } /* end else */ done: /* Reset the ring in the DXPL */ if(H5AC_reset_ring(dxpl, orig_ring) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set property value") /* Close the superblock extension, if it was opened */ if(ext_opened && H5F_super_ext_close(f, &ext_loc, dxpl_id, ext_created) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "unable to close file's superblock extension") /* Mark superblock dirty in cache, if superblock extension was created */ if(ext_created && H5AC_mark_entry_dirty(f->shared->sblock) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty") FUNC_LEAVE_NOAPI(ret_value) } /* H5F_super_ext_write_msg() */ /*------------------------------------------------------------------------- * Function: H5F_super_ext_remove_msg * * Purpose: Remove the message with ID from the superblock extension * * Return: Non-negative on success/Negative on failure * * Programmer: Vailin Choi; Feb 2009 * *------------------------------------------------------------------------- */ herr_t H5F_super_ext_remove_msg(H5F_t *f, hid_t dxpl_id, unsigned id) { H5P_genplist_t *dxpl = NULL; /* DXPL for setting ring */ H5AC_ring_t orig_ring = H5AC_RING_INV; /* Original ring value */ H5O_loc_t ext_loc; /* "Object location" for superblock extension */ hbool_t ext_opened = FALSE; /* Whether the superblock extension was opened */ int null_count = 0; /* # of null messages */ htri_t status; /* Indicate whether the message exists or not */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) /* Make sure that the superblock extension object header exists */ HDassert(H5F_addr_defined(f->shared->sblock->ext_addr)); /* Set the ring type in the DXPL */ if(H5AC_set_ring(dxpl_id, H5AC_RING_SBE, &dxpl, &orig_ring) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set ring value") /* Open superblock extension object header */ if(H5F_super_ext_open(f, f->shared->sblock->ext_addr, &ext_loc) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "error in starting file's superblock extension") ext_opened = TRUE; /* Check if message with ID exists in the object header */ if((status = H5O_msg_exists(&ext_loc, id, dxpl_id)) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to check object header for message") else if(status) { /* message exists */ H5O_hdr_info_t hdr_info; /* Object header info for superblock extension */ /* Remove the message */ if(H5O_msg_remove(&ext_loc, id, H5O_ALL, TRUE, dxpl_id) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTDELETE, FAIL, "unable to delete free-space manager info message") /* Get info for the superblock extension's object header */ if(H5O_get_hdr_info(&ext_loc, dxpl_id, &hdr_info) < 0) HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, FAIL, "unable to retrieve superblock extension info") /* If the object header is an empty base chunk, remove superblock extension */ if(hdr_info.nchunks == 1) { if((null_count = H5O_msg_count(&ext_loc, H5O_NULL_ID, dxpl_id)) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTCOUNT, FAIL, "unable to count messages") else if((unsigned)null_count == hdr_info.nmesgs) { HDassert(H5F_addr_defined(ext_loc.addr)); if(H5O_delete(f, dxpl_id, ext_loc.addr) < 0) HGOTO_ERROR(H5E_SYM, H5E_CANTCOUNT, FAIL, "unable to count messages") f->shared->sblock->ext_addr = HADDR_UNDEF; } /* end if */ } /* end if */ } /* end if */ done: /* Reset the ring in the DXPL */ if(H5AC_reset_ring(dxpl, orig_ring) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "unable to set property value") /* Close superblock extension object header, if opened */ if(ext_opened && H5F_super_ext_close(f, &ext_loc, dxpl_id, FALSE) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "unable to close file's superblock extension") FUNC_LEAVE_NOAPI(ret_value) } /* H5F_super_ext_remove_msg() */