/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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: H5B2cache.c * Jan 31 2005 * Quincey Koziol * * Purpose: Implement v2 B-tree metadata cache methods. * *------------------------------------------------------------------------- */ /****************/ /* Module Setup */ /****************/ #include "H5B2module.h" /* This source code file is part of the H5B2 module */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5B2pkg.h" /* v2 B-trees */ #include "H5Eprivate.h" /* Error handling */ #include "H5WBprivate.h" /* Wrapped Buffers */ /****************/ /* Local Macros */ /****************/ /* B-tree format version #'s */ #define H5B2_HDR_VERSION 0 /* Header */ #define H5B2_INT_VERSION 0 /* Internal node */ #define H5B2_LEAF_VERSION 0 /* Leaf node */ /******************/ /* Local Typedefs */ /******************/ /********************/ /* Package Typedefs */ /********************/ /********************/ /* Local Prototypes */ /********************/ /* Metadata cache callbacks */ static herr_t H5B2__cache_hdr_get_load_size(const void *udata, size_t *image_len); static void *H5B2__cache_hdr_deserialize(const void *image, size_t len, void *udata, hbool_t *dirty); static herr_t H5B2__cache_hdr_image_len(const void *thing, size_t *image_len, hbool_t *compressed_ptr, size_t *compressed_image_len_ptr); static herr_t H5B2__cache_hdr_serialize(const H5F_t *f, void *image, size_t len, void *thing); static herr_t H5B2__cache_hdr_free_icr(void *thing); static herr_t H5B2__cache_int_get_load_size(const void *udata, size_t *image_len); static void *H5B2__cache_int_deserialize(const void *image, size_t len, void *udata, hbool_t *dirty); static herr_t H5B2__cache_int_image_len(const void *thing, size_t *image_len, hbool_t *compressed_ptr, size_t *compressed_image_len_ptr); static herr_t H5B2__cache_int_serialize(const H5F_t *f, void *image, size_t len, void *thing); static herr_t H5B2__cache_int_free_icr(void *thing); static herr_t H5B2__cache_leaf_get_load_size(const void *udata, size_t *image_len); static void *H5B2__cache_leaf_deserialize(const void *image, size_t len, void *udata, hbool_t *dirty); static herr_t H5B2__cache_leaf_image_len(const void *thing, size_t *image_len, hbool_t *compressed_ptr, size_t *compressed_image_len_ptr); static herr_t H5B2__cache_leaf_serialize(const H5F_t *f, void *image, size_t len, void *thing); static herr_t H5B2__cache_leaf_free_icr(void *thing); /*********************/ /* Package Variables */ /*********************/ /* H5B2 inherits cache-like properties from H5AC */ const H5AC_class_t H5AC_BT2_HDR[1] = {{ H5AC_BT2_HDR_ID, /* Metadata client ID */ "v2 B-tree header", /* Metadata client name (for debugging) */ H5FD_MEM_BTREE, /* File space memory type for client */ H5AC__CLASS_NO_FLAGS_SET, /* Client class behavior flags */ H5B2__cache_hdr_get_load_size, /* 'get_load_size' callback */ H5B2__cache_hdr_deserialize, /* 'deserialize' callback */ H5B2__cache_hdr_image_len, /* 'image_len' callback */ NULL, /* 'pre_serialize' callback */ H5B2__cache_hdr_serialize, /* 'serialize' callback */ NULL, /* 'notify' callback */ H5B2__cache_hdr_free_icr, /* 'free_icr' callback */ NULL, /* 'clear' callback */ NULL, /* 'fsf_size' callback */ }}; /* H5B2 inherits cache-like properties from H5AC */ const H5AC_class_t H5AC_BT2_INT[1] = {{ H5AC_BT2_INT_ID, /* Metadata client ID */ "v2 B-tree internal node", /* Metadata client name (for debugging) */ H5FD_MEM_BTREE, /* File space memory type for client */ H5AC__CLASS_NO_FLAGS_SET, /* Client class behavior flags */ H5B2__cache_int_get_load_size, /* 'get_load_size' callback */ H5B2__cache_int_deserialize, /* 'deserialize' callback */ H5B2__cache_int_image_len, /* 'image_len' callback */ NULL, /* 'pre_serialize' callback */ H5B2__cache_int_serialize, /* 'serialize' callback */ NULL, /* 'notify' callback */ H5B2__cache_int_free_icr, /* 'free_icr' callback */ NULL, /* 'clear' callback */ NULL, /* 'fsf_size' callback */ }}; /* H5B2 inherits cache-like properties from H5AC */ const H5AC_class_t H5AC_BT2_LEAF[1] = {{ H5AC_BT2_LEAF_ID, /* Metadata client ID */ "v2 B-tree leaf node", /* Metadata client name (for debugging) */ H5FD_MEM_BTREE, /* File space memory type for client */ H5AC__CLASS_NO_FLAGS_SET, /* Client class behavior flags */ H5B2__cache_leaf_get_load_size, /* 'get_load_size' callback */ H5B2__cache_leaf_deserialize, /* 'deserialize' callback */ H5B2__cache_leaf_image_len, /* 'image_len' callback */ NULL, /* 'pre_serialize' callback */ H5B2__cache_leaf_serialize, /* 'serialize' callback */ NULL, /* 'notify' callback */ H5B2__cache_leaf_free_icr, /* 'free_icr' callback */ NULL, /* 'clear' callback */ NULL, /* 'fsf_size' callback */ }}; /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /*------------------------------------------------------------------------- * Function: H5B2__cache_hdr_get_load_size * * Purpose: Compute the size of the data structure on disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * May 18, 2010 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_hdr_get_load_size(const void *_udata, size_t *image_len) { const H5B2_hdr_cache_ud_t *udata = (const H5B2_hdr_cache_ud_t *)_udata; /* User data for callback */ FUNC_ENTER_STATIC_NOERR /* Check arguments */ HDassert(udata); HDassert(image_len); /* Set the image length size */ *image_len = H5B2_HEADER_SIZE_FILE(udata->f); FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5B2__cache_hdr_get_load_size() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_hdr_deserialize * * Purpose: Loads a B-tree header from the disk. * * Return: Success: Pointer to a new B-tree. * Failure: NULL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 1 2005 * *------------------------------------------------------------------------- */ static void * H5B2__cache_hdr_deserialize(const void *_image, size_t H5_ATTR_UNUSED len, void *_udata, hbool_t H5_ATTR_UNUSED *dirty) { H5B2_hdr_t *hdr = NULL; /* B-tree header */ H5B2_hdr_cache_ud_t *udata = (H5B2_hdr_cache_ud_t *)_udata; H5B2_create_t cparam; /* B-tree creation parameters */ H5B2_subid_t id; /* ID of B-tree class, as found in file */ uint16_t depth; /* Depth of B-tree */ uint32_t stored_chksum; /* Stored metadata checksum value */ uint32_t computed_chksum; /* Computed metadata checksum value */ const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */ H5B2_hdr_t *ret_value = NULL; /* Return value */ FUNC_ENTER_STATIC /* Check arguments */ HDassert(image); HDassert(udata); /* Allocate new B-tree header and reset cache info */ if(NULL == (hdr = H5B2__hdr_alloc(udata->f))) HGOTO_ERROR(H5E_BTREE, H5E_CANTALLOC, NULL, "allocation failed for B-tree header") /* Magic number */ if(HDmemcmp(image, H5B2_HDR_MAGIC, (size_t)H5_SIZEOF_MAGIC)) HGOTO_ERROR(H5E_BTREE, H5E_BADVALUE, NULL, "wrong B-tree header signature") image += H5_SIZEOF_MAGIC; /* Version */ if(*image++ != H5B2_HDR_VERSION) HGOTO_ERROR(H5E_BTREE, H5E_BADRANGE, NULL, "wrong B-tree header version") /* B-tree class */ id = (H5B2_subid_t)*image++; if(id >= H5B2_NUM_BTREE_ID) HGOTO_ERROR(H5E_BTREE, H5E_BADTYPE, NULL, "incorrect B-tree type") /* Node size (in bytes) */ UINT32DECODE(image, cparam.node_size); /* Raw key size (in bytes) */ UINT16DECODE(image, cparam.rrec_size); /* Depth of tree */ UINT16DECODE(image, depth); /* Split & merge %s */ cparam.split_percent = *image++; cparam.merge_percent = *image++; /* Root node pointer */ H5F_addr_decode(udata->f, (const uint8_t **)&image, &(hdr->root.addr)); UINT16DECODE(image, hdr->root.node_nrec); H5F_DECODE_LENGTH(udata->f, image, hdr->root.all_nrec); /* Metadata checksum */ UINT32DECODE(image, stored_chksum); /* Sanity check */ HDassert((size_t)(image - (const uint8_t *)_image) == hdr->hdr_size); /* Compute checksum on entire header */ computed_chksum = H5_checksum_metadata(_image, (hdr->hdr_size - H5B2_SIZEOF_CHKSUM), 0); /* Verify checksum */ if(stored_chksum != computed_chksum) HGOTO_ERROR(H5E_BTREE, H5E_BADVALUE, NULL, "incorrect metadata checksum for v2 B-tree header") /* Initialize B-tree header info */ cparam.cls = H5B2_client_class_g[id]; if(H5B2__hdr_init(hdr, &cparam, udata->ctx_udata, depth) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINIT, NULL, "can't initialize B-tree header info") /* Set the B-tree header's address */ hdr->addr = udata->addr; /* Sanity check */ HDassert((size_t)(image - (const uint8_t *)_image) <= len); /* Set return value */ ret_value = hdr; done: if(!ret_value && hdr) if(H5B2__hdr_free(hdr) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTRELEASE, NULL, "can't release v2 B-tree header") FUNC_LEAVE_NOAPI(ret_value) } /* end H5B2__cache_hdr_deserialize() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_hdr_image_len * * Purpose: Compute the size of the data structure on disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * May 20, 2010 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_hdr_image_len(const void *_thing, size_t *image_len, hbool_t H5_ATTR_UNUSED *compressed_ptr, size_t H5_ATTR_UNUSED *compressed_image_len_ptr) { const H5B2_hdr_t *hdr = (const H5B2_hdr_t *)_thing; /* Pointer to the B-tree header */ FUNC_ENTER_STATIC_NOERR /* Check arguments */ HDassert(hdr); HDassert(image_len); /* Set the image length size */ *image_len = hdr->hdr_size; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5B2__cache_hdr_image_len() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_hdr_serialize * * Purpose: Flushes a dirty B-tree header to disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 1 2005 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_hdr_serialize(const H5F_t *f, void *_image, size_t H5_ATTR_UNUSED len, void *_thing) { H5B2_hdr_t *hdr = (H5B2_hdr_t *)_thing; /* Pointer to the B-tree header */ uint8_t *image = (uint8_t *)_image; /* Pointer into raw data buffer */ uint32_t metadata_chksum; /* Computed metadata checksum value */ FUNC_ENTER_STATIC_NOERR /* check arguments */ HDassert(f); HDassert(image); HDassert(hdr); /* Magic number */ HDmemcpy(image, H5B2_HDR_MAGIC, (size_t)H5_SIZEOF_MAGIC); image += H5_SIZEOF_MAGIC; /* Version # */ *image++ = H5B2_HDR_VERSION; /* B-tree type */ *image++ = hdr->cls->id; /* Node size (in bytes) */ UINT32ENCODE(image, hdr->node_size); /* Raw key size (in bytes) */ UINT16ENCODE(image, hdr->rrec_size); /* Depth of tree */ UINT16ENCODE(image, hdr->depth); /* Split & merge %s */ H5_CHECK_OVERFLOW(hdr->split_percent, /* From: */ unsigned, /* To: */ uint8_t); *image++ = (uint8_t)hdr->split_percent; H5_CHECK_OVERFLOW(hdr->merge_percent, /* From: */ unsigned, /* To: */ uint8_t); *image++ = (uint8_t)hdr->merge_percent; /* Root node pointer */ H5F_addr_encode(f, &image, hdr->root.addr); UINT16ENCODE(image, hdr->root.node_nrec); H5F_ENCODE_LENGTH(f, image, hdr->root.all_nrec); /* Compute metadata checksum */ metadata_chksum = H5_checksum_metadata(_image, (hdr->hdr_size - H5B2_SIZEOF_CHKSUM), 0); /* Metadata checksum */ UINT32ENCODE(image, metadata_chksum); /* Sanity check */ HDassert((size_t)(image - (uint8_t *)_image) == len); FUNC_LEAVE_NOAPI(SUCCEED) } /* H5B2__cache_hdr_serialize() */ /*------------------------------------------------------------------------- * Function: H5B2__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 * June 18, 2008 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_hdr_free_icr(void *thing) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* Check arguments */ HDassert(thing); /* Destroy v2 B-tree header */ if(H5B2__hdr_free((H5B2_hdr_t *)thing) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free v2 B-tree header") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2__cache_hdr_free_icr() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_int_get_load_size * * Purpose: Compute the size of the data structure on disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * May 18, 2010 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_int_get_load_size(const void *_udata, size_t *image_len) { const H5B2_internal_cache_ud_t *udata = (const H5B2_internal_cache_ud_t *)_udata; /* User data for callback */ FUNC_ENTER_STATIC_NOERR /* Check arguments */ HDassert(udata); HDassert(udata->hdr); HDassert(image_len); /* Set the image length size */ *image_len = udata->hdr->node_size; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5B2__cache_int_get_load_size() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_int_deserialize * * Purpose: Deserialize a B-tree internal node from the disk. * * Return: Success: Pointer to a new B-tree internal node. * Failure: NULL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 2 2005 * *------------------------------------------------------------------------- */ static void * H5B2__cache_int_deserialize(const void *_image, size_t H5_ATTR_UNUSED len, void *_udata, hbool_t H5_ATTR_UNUSED *dirty) { H5B2_internal_cache_ud_t *udata = (H5B2_internal_cache_ud_t *)_udata; /* Pointer to user data */ H5B2_internal_t *internal = NULL; /* Internal node read */ const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */ uint8_t *native; /* Pointer to native record info */ H5B2_node_ptr_t *int_node_ptr; /* Pointer to node pointer info */ uint32_t stored_chksum; /* Stored metadata checksum value */ uint32_t computed_chksum; /* Computed metadata checksum value */ unsigned u; /* Local index variable */ H5B2_internal_t *ret_value = NULL; /* Return value */ FUNC_ENTER_STATIC /* Check arguments */ HDassert(image); HDassert(udata); /* Allocate new internal node and reset cache info */ if(NULL == (internal = H5FL_MALLOC(H5B2_internal_t))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed") HDmemset(&internal->cache_info, 0, sizeof(H5AC_info_t)); /* Increment ref. count on B-tree header */ if(H5B2__hdr_incr(udata->hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINC, NULL, "can't increment ref. count on B-tree header") /* Share B-tree information */ internal->hdr = udata->hdr; /* Magic number */ if(HDmemcmp(image, H5B2_INT_MAGIC, (size_t)H5_SIZEOF_MAGIC)) HGOTO_ERROR(H5E_BTREE, H5E_BADVALUE, NULL, "wrong B-tree internal node signature") image += H5_SIZEOF_MAGIC; /* Version */ if(*image++ != H5B2_INT_VERSION) HGOTO_ERROR(H5E_BTREE, H5E_BADVALUE, NULL, "wrong B-tree internal node version") /* B-tree type */ if(*image++ != (uint8_t)udata->hdr->cls->id) HGOTO_ERROR(H5E_BTREE, H5E_BADTYPE, NULL, "incorrect B-tree type") /* Allocate space for the native keys in memory */ if(NULL == (internal->int_native = (uint8_t *)H5FL_FAC_MALLOC(udata->hdr->node_info[udata->depth].nat_rec_fac))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for B-tree internal native keys") /* Allocate space for the node pointers in memory */ if(NULL == (internal->node_ptrs = (H5B2_node_ptr_t *)H5FL_FAC_MALLOC(udata->hdr->node_info[udata->depth].node_ptr_fac))) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed for B-tree internal node pointers") /* Set the number of records in the leaf & it's depth */ internal->nrec = udata->nrec; internal->depth = udata->depth; /* Deserialize records for internal node */ native = internal->int_native; for(u = 0; u < internal->nrec; u++) { /* Decode record */ if((udata->hdr->cls->decode)(image, native, udata->hdr->cb_ctx) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTDECODE, NULL, "unable to decode B-tree record") /* Move to next record */ image += udata->hdr->rrec_size; native += udata->hdr->cls->nrec_size; } /* end for */ /* Deserialize node pointers for internal node */ int_node_ptr = internal->node_ptrs; for(u = 0; u < (unsigned)(internal->nrec + 1); u++) { /* Decode node pointer */ H5F_addr_decode(udata->f, (const uint8_t **)&image, &(int_node_ptr->addr)); UINT64DECODE_VAR(image, int_node_ptr->node_nrec, udata->hdr->max_nrec_size); if(udata->depth > 1) UINT64DECODE_VAR(image, int_node_ptr->all_nrec, udata->hdr->node_info[udata->depth - 1].cum_max_nrec_size) else int_node_ptr->all_nrec = int_node_ptr->node_nrec; /* Move to next node pointer */ int_node_ptr++; } /* end for */ /* Compute checksum on internal node */ computed_chksum = H5_checksum_metadata(_image, (size_t)(image - (const uint8_t *)_image), 0); /* Metadata checksum */ UINT32DECODE(image, stored_chksum); /* Sanity check parsing */ HDassert((size_t)(image - (const uint8_t *)_image) <= len); /* Verify checksum */ if(stored_chksum != computed_chksum) HGOTO_ERROR(H5E_BTREE, H5E_BADVALUE, NULL, "incorrect metadata checksum for v2 internal node") /* Set return value */ ret_value = internal; done: if(!ret_value && internal) if(H5B2__internal_free(internal) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTFREE, NULL, "unable to destroy B-tree internal node") FUNC_LEAVE_NOAPI(ret_value) } /* H5B2__cache_int_deserialize() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_int_image_len * * Purpose: Compute the size of the data structure on disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * May 20, 2010 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_int_image_len(const void *_thing, size_t *image_len, hbool_t H5_ATTR_UNUSED *compressed_ptr, size_t H5_ATTR_UNUSED *compressed_image_len_ptr) { const H5B2_internal_t *internal = (const H5B2_internal_t *)_thing; /* Pointer to the B-tree internal node */ FUNC_ENTER_STATIC_NOERR /* Check arguments */ HDassert(internal); HDassert(internal->hdr); HDassert(image_len); /* Set the image length size */ *image_len = internal->hdr->node_size; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5B2__cache_int_image_len() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_int_serialize * * Purpose: Serializes a B-tree internal node for writing to disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 3 2005 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_int_serialize(const H5F_t *f, void *_image, size_t H5_ATTR_UNUSED len, void *_thing) { H5B2_internal_t *internal = (H5B2_internal_t *)_thing; /* Pointer to the B-tree internal node */ uint8_t *image = (uint8_t *)_image; /* Pointer into raw data buffer */ uint8_t *native; /* Pointer to native record info */ H5B2_node_ptr_t *int_node_ptr; /* Pointer to node pointer info */ uint32_t metadata_chksum; /* Computed metadata checksum value */ unsigned u; /* Local index variable */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* check arguments */ HDassert(f); HDassert(image); HDassert(internal); HDassert(internal->hdr); /* Magic number */ HDmemcpy(image, H5B2_INT_MAGIC, (size_t)H5_SIZEOF_MAGIC); image += H5_SIZEOF_MAGIC; /* Version # */ *image++ = H5B2_INT_VERSION; /* B-tree type */ *image++ = internal->hdr->cls->id; HDassert((size_t)(image - (uint8_t *)_image) == (H5B2_INT_PREFIX_SIZE - H5B2_SIZEOF_CHKSUM)); /* Serialize records for internal node */ native = internal->int_native; for(u = 0; u < internal->nrec; u++) { /* Encode record */ if((internal->hdr->cls->encode)(image, native, internal->hdr->cb_ctx) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTENCODE, FAIL, "unable to encode B-tree record") /* Move to next record */ image += internal->hdr->rrec_size; native += internal->hdr->cls->nrec_size; } /* end for */ /* Serialize node pointers for internal node */ int_node_ptr = internal->node_ptrs; for(u = 0; u < (unsigned)(internal->nrec + 1); u++) { /* Encode node pointer */ H5F_addr_encode(f, &image, int_node_ptr->addr); UINT64ENCODE_VAR(image, int_node_ptr->node_nrec, internal->hdr->max_nrec_size); if(internal->depth > 1) UINT64ENCODE_VAR(image, int_node_ptr->all_nrec, internal->hdr->node_info[internal->depth - 1].cum_max_nrec_size); /* Move to next node pointer */ int_node_ptr++; } /* end for */ /* Compute metadata checksum */ metadata_chksum = H5_checksum_metadata(_image, (size_t)(image - (uint8_t *)_image), 0); /* Metadata checksum */ UINT32ENCODE(image, metadata_chksum); /* Sanity check */ HDassert((size_t)(image - (uint8_t *)_image) <= len); /* Clear rest of internal node */ HDmemset(image, 0, len - (size_t)(image - (uint8_t *)_image)); done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2__cache_int_serialize() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_int_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 * June 18, 2008 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_int_free_icr(void *thing) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* Check arguments */ HDassert(thing); /* Release v2 B-tree internal node */ if(H5B2__internal_free((H5B2_internal_t *)thing) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to release v2 B-tree internal node") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2__cache_int_free_icr() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_leaf_get_load_size * * Purpose: Compute the size of the data structure on disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * May 18, 2010 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_leaf_get_load_size(const void *_udata, size_t *image_len) { const H5B2_leaf_cache_ud_t *udata = (const H5B2_leaf_cache_ud_t *)_udata; /* User data for callback */ FUNC_ENTER_STATIC_NOERR /* Check arguments */ HDassert(udata); HDassert(udata->hdr); HDassert(image_len); /* Set the image length size */ *image_len = udata->hdr->node_size; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5B2__cache_leaf_get_load_size() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_leaf_deserialize * * Purpose: Deserialize a B-tree leaf from the disk. * * Return: Success: Pointer to a new B-tree leaf node. * Failure: NULL * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 2 2005 * *------------------------------------------------------------------------- */ static void * H5B2__cache_leaf_deserialize(const void *_image, size_t H5_ATTR_UNUSED len, void *_udata, hbool_t H5_ATTR_UNUSED *dirty) { H5B2_leaf_cache_ud_t *udata = (H5B2_leaf_cache_ud_t *)_udata; H5B2_leaf_t *leaf = NULL; /* Pointer to lead node loaded */ const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */ uint8_t *native; /* Pointer to native keys */ uint32_t stored_chksum; /* Stored metadata checksum value */ uint32_t computed_chksum; /* Computed metadata checksum value */ unsigned u; /* Local index variable */ H5B2_leaf_t *ret_value = NULL; /* Return value */ FUNC_ENTER_STATIC /* Check arguments */ HDassert(image); HDassert(udata); /* Allocate new leaf node and reset cache info */ if(NULL == (leaf = H5FL_MALLOC(H5B2_leaf_t))) HGOTO_ERROR(H5E_BTREE, H5E_CANTALLOC, NULL, "memory allocation failed") HDmemset(&leaf->cache_info, 0, sizeof(H5AC_info_t)); /* Increment ref. count on B-tree header */ if(H5B2__hdr_incr(udata->hdr) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTINC, NULL, "can't increment ref. count on B-tree header") /* Share B-tree header information */ leaf->hdr = udata->hdr; /* Magic number */ if(HDmemcmp(image, H5B2_LEAF_MAGIC, (size_t)H5_SIZEOF_MAGIC)) HGOTO_ERROR(H5E_BTREE, H5E_BADVALUE, NULL, "wrong B-tree leaf node signature") image += H5_SIZEOF_MAGIC; /* Version */ if(*image++ != H5B2_LEAF_VERSION) HGOTO_ERROR(H5E_BTREE, H5E_BADRANGE, NULL, "wrong B-tree leaf node version") /* B-tree type */ if(*image++ != (uint8_t)udata->hdr->cls->id) HGOTO_ERROR(H5E_BTREE, H5E_BADTYPE, NULL, "incorrect B-tree type") /* Allocate space for the native keys in memory */ if(NULL == (leaf->leaf_native = (uint8_t *)H5FL_FAC_MALLOC(udata->hdr->node_info[0].nat_rec_fac))) HGOTO_ERROR(H5E_BTREE, H5E_CANTALLOC, NULL, "memory allocation failed for B-tree leaf native keys") /* Set the number of records in the leaf */ leaf->nrec = udata->nrec; /* Deserialize records for leaf node */ native = leaf->leaf_native; for(u = 0; u < leaf->nrec; u++) { /* Decode record */ if((udata->hdr->cls->decode)(image, native, udata->hdr->cb_ctx) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTENCODE, NULL, "unable to decode B-tree record") /* Move to next record */ image += udata->hdr->rrec_size; native += udata->hdr->cls->nrec_size; } /* end for */ /* Compute checksum on leaf node */ computed_chksum = H5_checksum_metadata(_image, (size_t)(image - (const uint8_t *)_image), 0); /* Metadata checksum */ UINT32DECODE(image, stored_chksum); /* Sanity check parsing */ HDassert((size_t)(image - (const uint8_t *)_image) <= udata->hdr->node_size); /* Verify checksum */ if(stored_chksum != computed_chksum) HGOTO_ERROR(H5E_BTREE, H5E_BADVALUE, NULL, "incorrect metadata checksum for v2 leaf node") /* Sanity check */ HDassert((size_t)(image - (const uint8_t *)_image) <= len); /* Set return value */ ret_value = leaf; done: if(!ret_value && leaf) if(H5B2__leaf_free(leaf) < 0) HDONE_ERROR(H5E_BTREE, H5E_CANTFREE, NULL, "unable to destroy B-tree leaf node") FUNC_LEAVE_NOAPI(ret_value) } /* H5B2__cache_leaf_deserialize() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_leaf_image_len * * Purpose: Compute the size of the data structure on disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@hdfgroup.org * May 20, 2010 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_leaf_image_len(const void *_thing, size_t *image_len, hbool_t H5_ATTR_UNUSED *compressed_ptr, size_t H5_ATTR_UNUSED *compressed_image_len_ptr) { const H5B2_leaf_t *leaf = (const H5B2_leaf_t *)_thing; /* Pointer to the B-tree leaf node */ FUNC_ENTER_STATIC_NOERR /* Check arguments */ HDassert(leaf); HDassert(leaf->hdr); HDassert(image_len); /* Set the image length size */ *image_len = leaf->hdr->node_size; FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5B2__cache_leaf_image_len() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_leaf_serialize * * Purpose: Serializes a B-tree leaf node for writing to disk. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * koziol@ncsa.uiuc.edu * Feb 2 2005 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_leaf_serialize(const H5F_t *f, void *_image, size_t H5_ATTR_UNUSED len, void *_thing) { H5B2_leaf_t *leaf = (H5B2_leaf_t *)_thing; /* Pointer to the B-tree leaf node */ uint8_t *image = (uint8_t *)_image; /* Pointer into raw data buffer */ uint8_t *native; /* Pointer to native keys */ uint32_t metadata_chksum; /* Computed metadata checksum value */ unsigned u; /* Local index variable */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* check arguments */ HDassert(f); HDassert(image); HDassert(leaf); HDassert(leaf->hdr); /* magic number */ HDmemcpy(image, H5B2_LEAF_MAGIC, (size_t)H5_SIZEOF_MAGIC); image += H5_SIZEOF_MAGIC; /* version # */ *image++ = H5B2_LEAF_VERSION; /* B-tree type */ *image++ = leaf->hdr->cls->id; HDassert((size_t)(image - (uint8_t *)_image) == (H5B2_LEAF_PREFIX_SIZE - H5B2_SIZEOF_CHKSUM)); /* Serialize records for leaf node */ native = leaf->leaf_native; for(u = 0; u < leaf->nrec; u++) { /* Encode record */ if((leaf->hdr->cls->encode)(image, native, leaf->hdr->cb_ctx) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTENCODE, FAIL, "unable to encode B-tree record") /* Move to next record */ image += leaf->hdr->rrec_size; native += leaf->hdr->cls->nrec_size; } /* end for */ /* Compute metadata checksum */ metadata_chksum = H5_checksum_metadata(_image, (size_t)((const uint8_t *)image - (const uint8_t *)_image), 0); /* Metadata checksum */ UINT32ENCODE(image, metadata_chksum); /* Sanity check */ HDassert((size_t)(image - (uint8_t *)_image) <= len); /* Clear rest of leaf node */ HDmemset(image, 0, len - (size_t)(image - (uint8_t *)_image)); done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2__cache_leaf_serialize() */ /*------------------------------------------------------------------------- * Function: H5B2__cache_leaf_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 * June 18, 2008 * *------------------------------------------------------------------------- */ static herr_t H5B2__cache_leaf_free_icr(void *thing) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC /* Check arguments */ HDassert(thing); /* Destroy v2 B-tree leaf node */ if(H5B2__leaf_free((H5B2_leaf_t *)thing) < 0) HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to destroy B-tree leaf node") done: FUNC_LEAVE_NOAPI(ret_value) } /* H5B2__cache_leaf_free_icr() */