/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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 files COPYING and Copyright.html. COPYING can be found at the root * * of the source code distribution tree; Copyright.html can be found at the * * root level of an installed copy of the electronic HDF5 document set and * * is linked from the top-level documents page. It can also be found at * * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /*------------------------------------------------------------------------- * * Created: H5FScache.c * May 2 2006 * Quincey Koziol * * Purpose: Implement file free space metadata cache methods. * *------------------------------------------------------------------------- */ /****************/ /* Module Setup */ /****************/ #define H5FS_PACKAGE /*suppress error about including H5FSpkg */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5AC2private.h" /* Metadata cache */ #include "H5Eprivate.h" /* Error handling */ #include "H5FSpkg.h" /* File free space */ #include "H5Vprivate.h" /* Vectors and arrays */ #include "H5WBprivate.h" /* Wrapped Buffers */ /****************/ /* Local Macros */ /****************/ /* File free space format version #'s */ #define H5FS_HDR_VERSION 0 /* Header */ #define H5FS_SINFO_VERSION 0 /* Serialized sections */ /******************/ /* Local Typedefs */ /******************/ /* User data for skip list iterator callback for iterating over section size nodes when syncing */ typedef struct { H5FS_sinfo_t *sinfo; /* Free space section info */ uint8_t **p; /* Pointer to address of buffer pointer to serialize with */ unsigned sect_cnt_size; /* # of bytes to encode section size counts in */ } H5FS_iter_ud_t; /********************/ /* Package Typedefs */ /********************/ /********************/ /* Local Prototypes */ /********************/ /* Section info routines */ static herr_t H5FS_sinfo_serialize_sect_cb(void *_item, void UNUSED *key, void *_udata); static herr_t H5FS_sinfo_serialize_node_cb(void *_item, void UNUSED *key, void *_udata); /* Metadata cache callbacks */ static void *H5FS_cache_hdr_deserialize(haddr_t addr, size_t len, const void *image, void *udata, hbool_t *dirty); static herr_t H5FS_cache_hdr_serialize(const H5F_t *f, hid_t dxpl_id, haddr_t addr, size_t len, void *image, void *thing, unsigned *flags, haddr_t *new_addr, size_t *new_len, void **new_image); static herr_t H5FS_cache_hdr_free_icr(haddr_t addr, size_t len, void *thing); static void *H5FS_cache_sinfo_deserialize(haddr_t addr, size_t len, const void *image, void *udata, hbool_t *dirty); static herr_t H5FS_cache_sinfo_serialize(const H5F_t *f, hid_t dxpl_id, haddr_t addr, size_t len, void *image, void *thing, unsigned *flags, haddr_t *new_addr, size_t *new_len, void **new_image); static herr_t H5FS_cache_sinfo_free_icr(haddr_t addr, size_t len, void *thing); /*********************/ /* Package Variables */ /*********************/ /* H5FS header inherits cache-like properties from H5AC2 */ const H5AC2_class_t H5AC2_FSPACE_HDR[1] = {{ H5AC2_FSPACE_HDR_ID, "Free space header", H5FD_MEM_FSPACE_HDR, H5FS_cache_hdr_deserialize, NULL, /* H5FS_cache_hdr_image_len, */ H5FS_cache_hdr_serialize, H5FS_cache_hdr_free_icr, NULL, /* H5FS_cache_hdr_clear_dirty_bits, */ }}; /* H5FS serialized sections inherit cache-like properties from H5AC2 */ const H5AC2_class_t H5AC2_FSPACE_SINFO[1] = {{ H5AC2_FSPACE_SINFO_ID, "Free space section info", H5FD_MEM_FSPACE_SINFO, H5FS_cache_sinfo_deserialize, NULL, H5FS_cache_sinfo_serialize, H5FS_cache_sinfo_free_icr, NULL, }}; /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /*------------------------------------------------------------------------- * Function: H5FS_cache_hdr_deserialize * * Purpose: Deserialize the data structure from disk. * * Return: Success: Pointer to a new free space header * Failure: NULL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * May 2 2006 * *------------------------------------------------------------------------- */ static void * H5FS_cache_hdr_deserialize(haddr_t UNUSED addr, size_t UNUSED len, const void *image, void *_udata, hbool_t UNUSED *dirty) { H5FS_t *fspace = NULL; /* Free space header info */ H5FS_hdr_cache_ud_t *udata = (H5FS_hdr_cache_ud_t *)_udata; /* user data for callback */ size_t size; /* Header size */ const uint8_t *p; /* Pointer into raw data buffer */ uint32_t stored_chksum; /* Stored metadata checksum value */ uint32_t computed_chksum; /* Computed metadata checksum value */ unsigned nclasses; /* Number of section classes */ H5FS_t *ret_value; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5FS_cache_hdr_deserialize) /* Check arguments */ HDassert(image); HDassert(udata); /* Allocate a new free space manager */ if(NULL == (fspace = H5FS_new(udata->fs_prot->nclasses, udata->fs_prot->classes, udata->fs_prot->cls_init_udata))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed") /* Set free space manager's internal information */ fspace->addr = addr; /* Compute the size of the free space header on disk */ size = H5FS_HEADER_SIZE(udata->f); p = image; /* Magic number */ if(HDmemcmp(p, H5FS_HDR_MAGIC, (size_t)H5FS_SIZEOF_MAGIC)) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, NULL, "wrong free space header signature") p += H5FS_SIZEOF_MAGIC; /* Version */ if(*p++ != H5FS_HDR_VERSION) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, NULL, "wrong free space header version") /* Client ID */ fspace->client = *p++; if(fspace->client >= H5FS_NUM_CLIENT_ID) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, NULL, "unknown client ID in free space header") /* Total space tracked */ H5F_DECODE_LENGTH(udata->f, p, fspace->tot_space); /* Total # of free space sections tracked */ H5F_DECODE_LENGTH(udata->f, p, fspace->tot_sect_count); /* # of serializable free space sections tracked */ H5F_DECODE_LENGTH(udata->f, p, fspace->serial_sect_count); /* # of ghost free space sections tracked */ H5F_DECODE_LENGTH(udata->f, p, fspace->ghost_sect_count); /* # of section classes */ /* (only check if we actually have some classes) */ UINT16DECODE(p, nclasses); if(fspace->nclasses > 0 && fspace->nclasses != nclasses) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, NULL, "section class count mismatch") /* Shrink percent */ UINT16DECODE(p, fspace->shrink_percent); /* Expand percent */ UINT16DECODE(p, fspace->expand_percent); /* Size of address space free space sections are within (log2 of actual value) */ UINT16DECODE(p, fspace->max_sect_addr); /* Max. size of section to track */ H5F_DECODE_LENGTH(udata->f, p, fspace->max_sect_size); /* Address of serialized free space sections */ H5F_addr_decode(udata->f, &p, &fspace->sect_addr); /* Size of serialized free space sections */ H5F_DECODE_LENGTH(udata->f, p, fspace->sect_size); /* Allocated size of serialized free space sections */ H5F_DECODE_LENGTH(udata->f, p, fspace->alloc_sect_size); /* Compute checksum on indirect block */ computed_chksum = H5_checksum_metadata(image, (size_t)(p - (const uint8_t *)image), 0); /* Metadata checksum */ UINT32DECODE(p, stored_chksum); /* Verify checksum */ if(stored_chksum != computed_chksum) HGOTO_ERROR(H5E_HEAP, H5E_BADVALUE, NULL, "incorrect metadata checksum for fractal heap indirect block") /* Sanity check */ HDassert((size_t)(p - (const uint8_t *)image) <= len); /* Set return value */ ret_value = fspace; done: /* Release resources */ if(!ret_value && fspace) (void)H5FS_cache_hdr_dest(fspace); FUNC_LEAVE_NOAPI(ret_value) } /* end H5FS_cache_hdr_deserialize() */ /*lint !e818 Can't make udata a pointer to const */ /*------------------------------------------------------------------------- * Function: H5FS_cache_hdr_serialize * * Purpose: Serializes the data structure for writing to disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * May 2 2006 * *------------------------------------------------------------------------- */ static herr_t H5FS_cache_hdr_serialize(const H5F_t *f, hid_t UNUSED dxpl_id, haddr_t UNUSED addr, size_t UNUSED len, void *image, void *_thing, unsigned *flags, haddr_t UNUSED *new_addr, size_t UNUSED *new_len, void UNUSED **new_image) { H5FS_t *fspace = (H5FS_t *)_thing; /* Pointer to free space header */ uint8_t *p; /* Pointer into raw data buffer */ uint32_t metadata_chksum; /* Computed metadata checksum value */ size_t size; /* Header size on disk */ FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5FS_cache_hdr_serialize) /* check arguments */ HDassert(f); HDassert(image); HDassert(fspace); HDassert(flags); /* Compute the size of the free space header on disk */ size = H5FS_HEADER_SIZE(f); /* Get temporary pointer to header */ p = image; /* Magic number */ HDmemcpy(p, H5FS_HDR_MAGIC, (size_t)H5FS_SIZEOF_MAGIC); p += H5FS_SIZEOF_MAGIC; /* Version # */ *p++ = H5FS_HDR_VERSION; /* Client ID */ *p++ = fspace->client; /* Total space tracked */ H5F_ENCODE_LENGTH(f, p, fspace->tot_space); /* Total # of free space sections tracked */ H5F_ENCODE_LENGTH(f, p, fspace->tot_sect_count); /* # of serializable free space sections tracked */ H5F_ENCODE_LENGTH(f, p, fspace->serial_sect_count); /* # of ghost free space sections tracked */ H5F_ENCODE_LENGTH(f, p, fspace->ghost_sect_count); /* # of section classes */ UINT16ENCODE(p, fspace->nclasses); /* Shrink percent */ UINT16ENCODE(p, fspace->shrink_percent); /* Expand percent */ UINT16ENCODE(p, fspace->expand_percent); /* Size of address space free space sections are within (log2 of actual value) */ UINT16ENCODE(p, fspace->max_sect_addr); /* Max. size of section to track */ H5F_ENCODE_LENGTH(f, p, fspace->max_sect_size); /* Address of serialized free space sections */ H5F_addr_encode(f, &p, fspace->sect_addr); /* Size of serialized free space sections */ H5F_ENCODE_LENGTH(f, p, fspace->sect_size); /* Allocated size of serialized free space sections */ H5F_ENCODE_LENGTH(f, p, fspace->alloc_sect_size); /* Compute checksum */ metadata_chksum = H5_checksum_metadata(image, (size_t)(p - (uint8_t *)image), 0); /* Metadata checksum */ UINT32ENCODE(p, metadata_chksum); /* Reset the cache flags for this operation */ *flags = 0; /* Sanity check */ HDassert((size_t)(p - (uint8_t *)image) <= len); FUNC_LEAVE_NOAPI(SUCCEED) } /* H5FS_cache_hdr_serialize() */ /*------------------------------------------------------------------------- * Function: H5FS_cache_hdr_free_icr * * Purpose: Destroy/release an "in core representation" of a data structure * * Return: Non-negative on success/Negative on failure * * Programmer: Mike McGreevy * mcgreevy@hdfgroup.org * May 29, 2008 * *------------------------------------------------------------------------- */ static herr_t H5FS_cache_hdr_free_icr(haddr_t UNUSED addr, size_t UNUSED len, void *thing) { FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5FS_cache_hdr_free_icr) /* Check arguments */ HDassert(thing); /* Destroy free space header */ H5FS_cache_hdr_dest(thing); FUNC_LEAVE_NOAPI(SUCCEED) } /* H5FS_cache_hdr_free_icr() */ /*------------------------------------------------------------------------- * Function: H5FS_cache_sinfo_deserialize * * Purpose: Deserialize the data structure from disk. * * Return: Success: Pointer to a new free space section info * Failure: NULL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * July 31 2006 * *------------------------------------------------------------------------- */ static void * H5FS_cache_sinfo_deserialize(haddr_t UNUSED addr, size_t UNUSED len, const void *image, void *_udata, hbool_t UNUSED *dirty) { H5FS_sinfo_t *sinfo = NULL; /* Free space section info */ H5FS_sinfo_cache_ud_t *udata = (H5FS_sinfo_cache_ud_t *)_udata; /* user data for callback */ haddr_t fs_addr; /* Free space header address */ size_t old_sect_size; /* Old section size */ const uint8_t *p; /* Pointer into raw data buffer */ uint32_t stored_chksum; /* Stored metadata checksum value */ uint32_t computed_chksum; /* Computed metadata checksum value */ H5FS_sinfo_t *ret_value; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5FS_cache_sinfo_deserialize) /* Check arguments */ HDassert(image); HDassert(udata); /* Allocate a new free space section info */ if(NULL == (sinfo = H5FS_sinfo_new(udata->f, udata->fspace))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed") /* Link free space manager to section info */ /* (for deserializing sections) */ HDassert(udata->fspace->sinfo == NULL); udata->fspace->sinfo = sinfo; /* Sanity check address */ if(H5F_addr_ne(addr, udata->fspace->sect_addr)) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, NULL, "incorrect address for free space sections") /* Allocate space for the buffer to serialize the sections into */ H5_ASSIGN_OVERFLOW(/* To: */ old_sect_size, /* From: */ udata->fspace->sect_size, /* From: */ hsize_t, /* To: */ size_t); /* Deserialize free sections from buffer available */ p = image; /* Magic number */ if(HDmemcmp(p, H5FS_SINFO_MAGIC, (size_t)H5FS_SIZEOF_MAGIC)) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, NULL, "wrong free space sections signature") p += H5FS_SIZEOF_MAGIC; /* Version */ if(*p++ != H5FS_SINFO_VERSION) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, NULL, "wrong free space sections version") /* Address of free space header for these sections */ H5F_addr_decode(udata->f, &p, &fs_addr); if(H5F_addr_ne(fs_addr, udata->fspace->addr)) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, NULL, "incorrect header address for free space sections") /* Check for any serialized sections */ if(udata->fspace->serial_sect_count > 0) { hsize_t old_tot_sect_count; /* Total section count from header */ hsize_t old_serial_sect_count; /* Total serializable section count from header */ hsize_t old_ghost_sect_count; /* Total ghost section count from header */ hsize_t old_tot_space; /* Total space managed from header */ unsigned sect_cnt_size; /* The size of the section size counts */ /* Compute the size of the section counts */ sect_cnt_size = H5V_limit_enc_size((uint64_t)udata->fspace->serial_sect_count); /* Reset the section count, the "add" routine will update it */ old_tot_sect_count = udata->fspace->tot_sect_count; old_serial_sect_count = udata->fspace->serial_sect_count; old_ghost_sect_count = udata->fspace->ghost_sect_count; old_tot_space = udata->fspace->tot_space; udata->fspace->tot_sect_count = 0; udata->fspace->serial_sect_count = 0; udata->fspace->ghost_sect_count = 0; udata->fspace->tot_space = 0; /* Walk through the buffer, deserializing sections */ do { hsize_t sect_size; /* Current section size */ size_t node_count; /* # of sections of this size */ size_t u; /* Local index variable */ /* The number of sections of this node's size */ UINT64DECODE_VAR(p, node_count, sect_cnt_size); HDassert(node_count); /* The size of the sections for this node */ UINT64DECODE_VAR(p, sect_size, sinfo->sect_len_size); HDassert(sect_size); /* Loop over nodes of this size */ for(u = 0; u < node_count; u++) { H5FS_section_info_t *new_sect; /* Section that was deserialized */ haddr_t sect_addr; /* Address of free space section in the address space */ unsigned sect_type; /* Type of free space section */ unsigned des_flags; /* Flags from deserialize callback */ /* The address of the section */ UINT64DECODE_VAR(p, sect_addr, sinfo->sect_off_size); /* The type of this section */ sect_type = *p++; /* Call 'deserialize' callback for this section */ des_flags = 0; HDassert(udata->fspace->sect_cls[sect_type].deserialize); if(NULL == (new_sect = (*udata->fspace->sect_cls[sect_type].deserialize)(&udata->fspace->sect_cls[sect_type], udata->dxpl_id, p, sect_addr, sect_size, &des_flags))) HGOTO_ERROR(H5E_FSPACE, H5E_CANTDECODE, NULL, "can't deserialize section") /* Update offset in serialization buffer */ p += udata->fspace->sect_cls[sect_type].serial_size; /* Insert section in free space manager, unless requested not to */ if(!(des_flags & H5FS_DESERIALIZE_NO_ADD)) if(H5FS_sect_add(udata->f, udata->dxpl_id, udata->fspace, new_sect, H5FS_ADD_DESERIALIZING, NULL) < 0) HGOTO_ERROR(H5E_FSPACE, H5E_CANTINSERT, NULL, "can't add section to free space manager") } /* end for */ } while(p < (((const uint8_t *)image + old_sect_size) - H5FS_SIZEOF_CHKSUM)); /* Sanity check */ HDassert((size_t)(p - (const uint8_t *)image) == (old_sect_size - H5FS_SIZEOF_CHKSUM)); HDassert(old_sect_size == udata->fspace->sect_size); HDassert(old_tot_sect_count == udata->fspace->tot_sect_count); HDassert(old_serial_sect_count == udata->fspace->serial_sect_count); HDassert(old_ghost_sect_count == udata->fspace->ghost_sect_count); HDassert(old_tot_space == udata->fspace->tot_space); } /* end if */ /* Compute checksum on indirect block */ computed_chksum = H5_checksum_metadata(image, (size_t)(p - (const uint8_t *)image), 0); /* Metadata checksum */ UINT32DECODE(p, stored_chksum); /* Verify checksum */ if(stored_chksum != computed_chksum) HGOTO_ERROR(H5E_HEAP, H5E_BADVALUE, NULL, "incorrect metadata checksum for fractal heap indirect block") /* Sanity check */ HDassert((size_t)(p - (const uint8_t *)image) <= len); /* Set return value */ ret_value = sinfo; done: if(!ret_value && sinfo) (void)H5FS_cache_sinfo_dest(sinfo); FUNC_LEAVE_NOAPI(ret_value) } /* end H5FS_cache_sinfo_deserialize() */ /*lint !e818 Can't make udata a pointer to const */ /*------------------------------------------------------------------------- * Function: H5FS_sinfo_serialize_sect_cb * * Purpose: Skip list iterator callback to serialize free space sections * of a particular size * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Monday, May 8, 2006 * *------------------------------------------------------------------------- */ static herr_t H5FS_sinfo_serialize_sect_cb(void *_item, void UNUSED *key, void *_udata) { H5FS_section_class_t *sect_cls; /* Class of section */ H5FS_section_info_t *sect= (H5FS_section_info_t *)_item; /* Free space section to work on */ H5FS_iter_ud_t *udata = (H5FS_iter_ud_t *)_udata; /* Callback info */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5FS_sinfo_serialize_sect_cb) /* Check arguments. */ HDassert(sect); HDassert(udata->sinfo); HDassert(udata->p); /* Get section's class */ sect_cls = &udata->sinfo->fspace->sect_cls[sect->type]; /* Check if this section should be serialized (i.e. is not a ghost section) */ if(!(sect_cls->flags & H5FS_CLS_GHOST_OBJ)) { /* The address of the section */ UINT64ENCODE_VAR(*udata->p, sect->addr, udata->sinfo->sect_off_size); /* The type of this section */ *(*udata->p)++ = (uint8_t)sect->type; /* Call 'serialize' callback for this section */ if(sect_cls->serialize) { if((*sect_cls->serialize)(sect_cls, sect, *udata->p) < 0) HGOTO_ERROR(H5E_FSPACE, H5E_CANTSERIALIZE, FAIL, "can't syncronize section") /* Update offset in serialization buffer */ (*udata->p) += sect_cls->serial_size; } /* end if */ else HDassert(sect_cls->serial_size == 0); } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* H5FS_sinfo_serialize_sect_cb() */ /*------------------------------------------------------------------------- * Function: H5FS_sinfo_serialize_node_cb * * Purpose: Skip list iterator callback to serialize free space sections * in a bin * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Monday, May 8, 2006 * *------------------------------------------------------------------------- */ static herr_t H5FS_sinfo_serialize_node_cb(void *_item, void UNUSED *key, void *_udata) { H5FS_node_t *fspace_node = (H5FS_node_t *)_item; /* Free space size node to work on */ H5FS_iter_ud_t *udata = (H5FS_iter_ud_t *)_udata; /* Callback info */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5FS_sinfo_serialize_node_cb) /* Check arguments. */ HDassert(fspace_node); HDassert(udata->sinfo); HDassert(udata->p); /* Check if this node has any serializable sections */ if(fspace_node->serial_count > 0) { /* The number of serializable sections of this node's size */ UINT64ENCODE_VAR(*udata->p, fspace_node->serial_count, udata->sect_cnt_size); /* The size of the sections for this node */ UINT64ENCODE_VAR(*udata->p, fspace_node->sect_size, udata->sinfo->sect_len_size); /* Iterate through all the sections of this size */ HDassert(fspace_node->sect_list); if(H5SL_iterate(fspace_node->sect_list, H5FS_sinfo_serialize_sect_cb, udata) < 0) HGOTO_ERROR(H5E_FSPACE, H5E_BADITER, FAIL, "can't iterate over section nodes") } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) } /* H5FS_sinfo_serialize_node_cb() */ /*------------------------------------------------------------------------- * Function: H5FS_cache_sinfo_serialize * * Purpose: Serialize the data structure for writing to disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * July 31 2006 * *------------------------------------------------------------------------- */ static herr_t H5FS_cache_sinfo_serialize(const H5F_t * f, hid_t UNUSED dxpl_id, haddr_t UNUSED addr, size_t UNUSED len, void *image, void *_thing, unsigned *flags, haddr_t UNUSED *new_addr, size_t UNUSED *new_len, void UNUSED **new_image) { H5FS_sinfo_t * sinfo = (H5FS_sinfo_t *)_thing; H5FS_iter_ud_t udata; /* User data for callbacks */ uint8_t *p; /* Pointer into raw data buffer */ uint32_t metadata_chksum; /* Computed metadata checksum value */ unsigned bin; /* Current bin we are on */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5FS_cache_sinfo_serialize) /* check arguments */ HDassert(f); HDassert(image); HDassert(sinfo); HDassert(sinfo->fspace); HDassert(sinfo->fspace->sect_cls); HDassert(flags); /* Sanity check address */ if(H5F_addr_ne(addr, sinfo->fspace->sect_addr)) HGOTO_ERROR(H5E_FSPACE, H5E_CANTLOAD, FAIL, "incorrect address for free space sections") /* Allocate temporary buffer */ p = image; /* Magic number */ HDmemcpy(p, H5FS_SINFO_MAGIC, (size_t)H5FS_SIZEOF_MAGIC); p += H5FS_SIZEOF_MAGIC; /* Version # */ *p++ = H5FS_SINFO_VERSION; /* Address of free space header for these sections */ H5F_addr_encode(f, &p, sinfo->fspace->addr); /* Set up user data for iterator */ udata.sinfo = sinfo; udata.p = &p; udata.sect_cnt_size = H5V_limit_enc_size((uint64_t)sinfo->fspace->serial_sect_count); /* Iterate over all the bins */ for(bin = 0; bin < sinfo->nbins; bin++) { /* Check if there are any sections in this bin */ if(sinfo->bins[bin].bin_list) { /* Iterate over list of section size nodes for bin */ if(H5SL_iterate(sinfo->bins[bin].bin_list, H5FS_sinfo_serialize_node_cb, &udata) < 0) HGOTO_ERROR(H5E_FSPACE, H5E_BADITER, FAIL, "can't iterate over section size nodes") } /* end if */ } /* end for */ /* Compute checksum */ metadata_chksum = H5_checksum_metadata(image, (size_t)(p - (uint8_t *)image), 0); /* Metadata checksum */ UINT32ENCODE(p, metadata_chksum); /* Sanity check */ HDassert((size_t)(p - (uint8_t *)image) == sinfo->fspace->sect_size); HDassert(sinfo->fspace->sect_size <= sinfo->fspace->alloc_sect_size); /* Sanity check */ HDassert((size_t)(p - (uint8_t *)image) <= len); /* Reset the cache flags for this operation */ *flags = 0; done: FUNC_LEAVE_NOAPI(ret_value) } /* H5FS_cache_sinfo_serialize() */ /*------------------------------------------------------------------------- * Function: H5FS_cache_sinfo_free_icr * * Purpose: Destroy/release an "in core representation" of a data structure * * Return: Non-negative on success/Negative on failure * * Programmer: Mike McGreevy * mcgreevy@hdfgroup.org * May 29, 2008 * *------------------------------------------------------------------------- */ static herr_t H5FS_cache_sinfo_free_icr(haddr_t UNUSED addr, size_t UNUSED len, void *thing) { FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5FS_cache_sinfo_free_icr) /* Check arguments */ HDassert(thing); /* Destroy B-tree node */ H5FS_cache_sinfo_dest(thing); FUNC_LEAVE_NOAPI(SUCCEED) } /* H5FS_cache_sinfo_free_icr() */