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-rw-r--r--src/H5Fsuper_cache.c583
1 files changed, 375 insertions, 208 deletions
diff --git a/src/H5Fsuper_cache.c b/src/H5Fsuper_cache.c
index d863159..6cfd9c7 100644
--- a/src/H5Fsuper_cache.c
+++ b/src/H5Fsuper_cache.c
@@ -67,7 +67,10 @@
/********************/
/* Metadata cache (H5AC) callbacks */
-static herr_t H5F__cache_superblock_get_load_size(const void *udata, size_t *image_len);
+static herr_t H5F__cache_superblock_get_initial_load_size(void *udata, size_t *image_len);
+static herr_t H5F__cache_superblock_get_final_load_size(const void *image_ptr,
+ size_t image_len, void *udata, size_t *actual_len);
+static htri_t H5F__cache_superblock_verify_chksum(const void *image_ptr, size_t len, void *udata_ptr);
static void *H5F__cache_superblock_deserialize(const void *image, size_t len,
void *udata, hbool_t *dirty);
static herr_t H5F__cache_superblock_image_len(const void *thing, size_t *image_len);
@@ -78,7 +81,9 @@ static herr_t H5F__cache_superblock_serialize(const H5F_t *f, void *image, size_
void *thing);
static herr_t H5F__cache_superblock_free_icr(void *thing);
-static herr_t H5F__cache_drvrinfo_get_load_size(const void *udata, size_t *image_len);
+static herr_t H5F__cache_drvrinfo_get_initial_load_size(void *udata, size_t *image_len);
+static herr_t H5F__cache_drvrinfo_get_final_load_size(const void *image_ptr,
+ size_t image_len, void *udata, size_t *actual_len);
static void *H5F__cache_drvrinfo_deserialize(const void *image, size_t len,
void *udata, hbool_t *dirty);
static herr_t H5F__cache_drvrinfo_image_len(const void *thing, size_t *image_len);
@@ -97,7 +102,9 @@ const H5AC_class_t H5AC_SUPERBLOCK[1] = {{
"Superblock", /* Metadata client name (for debugging) */
H5FD_MEM_SUPER, /* File space memory type for client */
H5AC__CLASS_SPECULATIVE_LOAD_FLAG, /* Client class behavior flags */
- H5F__cache_superblock_get_load_size,/* 'get_load_size' callback */
+ H5F__cache_superblock_get_initial_load_size,/* 'get_initial_load_size' callback */
+ H5F__cache_superblock_get_final_load_size, /* 'get_final_load_size' callback */
+ H5F__cache_superblock_verify_chksum, /* 'verify_chksum' callback */
H5F__cache_superblock_deserialize, /* 'deserialize' callback */
H5F__cache_superblock_image_len, /* 'image_len' callback */
H5F__cache_superblock_pre_serialize,/* 'pre_serialize' callback */
@@ -113,7 +120,9 @@ const H5AC_class_t H5AC_DRVRINFO[1] = {{
"Driver info block", /* Metadata client name (for debugging) */
H5FD_MEM_SUPER, /* File space memory type for client */
H5AC__CLASS_SPECULATIVE_LOAD_FLAG, /* Client class behavior flags */
- H5F__cache_drvrinfo_get_load_size, /* 'get_load_size' callback */
+ H5F__cache_drvrinfo_get_initial_load_size, /* 'get_initial_load_size' callback */
+ H5F__cache_drvrinfo_get_final_load_size, /* 'get_final_load_size' callback */
+ NULL, /* 'verify_chksum' callback */
H5F__cache_drvrinfo_deserialize, /* 'deserialize' callback */
H5F__cache_drvrinfo_image_len, /* 'image_len' callback */
NULL, /* 'pre_serialize' callback */
@@ -139,7 +148,7 @@ H5FL_EXTERN(H5F_super_t);
/*-------------------------------------------------------------------------
- * Function: H5F__cache_superblock_get_load_size
+ * Function: H5F__cache_superblock_get_initial_load_size
*
* Purpose: Compute the size of the data structure on disk.
*
@@ -152,7 +161,7 @@ H5FL_EXTERN(H5F_super_t);
*-------------------------------------------------------------------------
*/
static herr_t
-H5F__cache_superblock_get_load_size(const void H5_ATTR_UNUSED *udata, size_t *image_len)
+H5F__cache_superblock_get_initial_load_size(void H5_ATTR_UNUSED *_udata, size_t *image_len)
{
FUNC_ENTER_STATIC_NOERR
@@ -161,10 +170,138 @@ H5F__cache_superblock_get_load_size(const void H5_ATTR_UNUSED *udata, size_t *im
/* Set the initial image length size */
*image_len = H5F_SUPERBLOCK_FIXED_SIZE + /* Fixed size of superblock */
- H5F_SUPERBLOCK_MINIMAL_VARLEN_SIZE;
+ H5F_SUPERBLOCK_MINIMAL_VARLEN_SIZE;
FUNC_LEAVE_NOAPI(SUCCEED)
-} /* end H5F__cache_superblock_get_load_size() */
+} /* end H5F__cache_superblock_get_initial_load_size() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5F__cache_superblock_get_final_load_size
+ *
+ * Purpose: Compute the final size of the data structure on disk.
+ *
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Quincey Koziol
+ * koziol@lbl.gov
+ * November 17, 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5F__cache_superblock_get_final_load_size(const void *_image, size_t image_len,
+ void *_udata, size_t *actual_len)
+{
+ const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
+ H5F_superblock_cache_ud_t *udata = (H5F_superblock_cache_ud_t *)_udata; /* User data */
+ unsigned super_vers; /* Superblock version */
+ uint8_t sizeof_addr; /* Size of offsets in the file (in bytes) */
+ uint8_t sizeof_size; /* Size of lengths in the file (in bytes) */
+ size_t variable_size; /* Variable size of superblock */
+ htri_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_STATIC
+
+ /* Check arguments */
+ HDassert(image);
+ HDassert(udata);
+ HDassert(udata->f);
+ HDassert(actual_len);
+ HDassert(*actual_len == image_len);
+
+ /* Skip over file signature */
+ image += H5F_SIGNATURE_LEN;
+
+ /* Superblock version */
+ super_vers = *image++;
+ if(super_vers > HDF5_SUPERBLOCK_VERSION_LATEST)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "bad superblock version number")
+
+ /* Save the version to be used in verify_chksum callback */
+ udata->super_vers = super_vers;
+
+ /* Sanity check */
+ HDassert(((size_t)(image - (const uint8_t *)_image)) == H5F_SUPERBLOCK_FIXED_SIZE);
+ HDassert(image_len >= H5F_SUPERBLOCK_FIXED_SIZE + 6);
+
+ /* Determine the size of addresses & size of offsets, for computing the
+ * variable-sized portion of the superblock.
+ */
+ if(super_vers < HDF5_SUPERBLOCK_VERSION_2) {
+ sizeof_addr = image[4];
+ sizeof_size = image[5];
+ } /* end if */
+ else {
+ sizeof_addr = image[0];
+ sizeof_size = image[1];
+ } /* end else */
+ if(sizeof_addr != 2 && sizeof_addr != 4 &&
+ sizeof_addr != 8 && sizeof_addr != 16 && sizeof_addr != 32)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "bad byte number in an address")
+ if(sizeof_size != 2 && sizeof_size != 4 &&
+ sizeof_size != 8 && sizeof_size != 16 && sizeof_size != 32)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "bad byte number for object size")
+
+ /* Determine the size of the variable-length part of the superblock */
+ variable_size = (size_t)H5F_SUPERBLOCK_VARLEN_SIZE(super_vers, sizeof_addr, sizeof_size);
+ HDassert(variable_size > 0);
+
+ /* Sanity check */
+ HDassert(image_len == (H5F_SUPERBLOCK_FIXED_SIZE + H5F_SUPERBLOCK_MINIMAL_VARLEN_SIZE));
+
+ /* Make certain we can read the variable-sized portion of the superblock */
+ if(H5F__set_eoa(udata->f, H5FD_MEM_SUPER, (haddr_t)(H5F_SUPERBLOCK_FIXED_SIZE + variable_size)) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "set end of space allocation request failed")
+
+ /* Set the final size for the cache image */
+ *actual_len = H5F_SUPERBLOCK_FIXED_SIZE + variable_size;
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F__cache_superblock_get_final_load_size() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5F__cache_superblock_verify_chksum
+ *
+ * Purpose: Verify the computed checksum of the data structure is the
+ * same as the stored chksum.
+ *
+ * Return: Success: TRUE/FALSE
+ * Failure: Negative
+ *
+ * Programmer: Vailin Choi; Aug 2015
+ *
+ *-------------------------------------------------------------------------
+ */
+static htri_t
+H5F__cache_superblock_verify_chksum(const void *_image, size_t len, void *_udata)
+{
+ const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
+ H5F_superblock_cache_ud_t *udata = (H5F_superblock_cache_ud_t *)_udata; /* User data */
+ uint32_t stored_chksum; /* Stored metadata checksum value */
+ uint32_t computed_chksum; /* Computed metadata checksum value */
+ htri_t ret_value = TRUE; /* Return value */
+
+ FUNC_ENTER_STATIC_NOERR
+
+ /* Check arguments */
+ HDassert(image);
+ HDassert(udata);
+
+ /* No checksum for version 0 & 1 */
+ if(udata->super_vers >= HDF5_SUPERBLOCK_VERSION_2) {
+
+ /* Get stored and computed checksums */
+ H5F_get_checksums(image, len, &stored_chksum, &computed_chksum);
+
+ if(stored_chksum != computed_chksum)
+ ret_value = FALSE;
+ } /* end if */
+
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F__cache_superblock_verify_chksum() */
/*-------------------------------------------------------------------------
@@ -244,176 +381,161 @@ H5F__cache_superblock_deserialize(const void *_image, size_t len, void *_udata,
variable_size = (size_t)H5F_SUPERBLOCK_VARLEN_SIZE(super_vers, sizeof_addr, sizeof_size);
HDassert(variable_size > 0);
- /* Handle metadata cache retry for variable-sized portion of the superblock */
- if(len != (H5F_SUPERBLOCK_FIXED_SIZE + variable_size)) {
- /* Sanity check */
- HDassert(len == (H5F_SUPERBLOCK_FIXED_SIZE + H5F_SUPERBLOCK_MINIMAL_VARLEN_SIZE));
+ HDassert(len == (H5F_SUPERBLOCK_FIXED_SIZE + variable_size));
- /* Make certain we can read the variabled-sized portion of the superblock */
- if(H5F__set_eoa(udata->f, H5FD_MEM_SUPER, (haddr_t)(H5F_SUPERBLOCK_FIXED_SIZE + variable_size)) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed")
- } /* end if */
- else {
- /* Check for older version of superblock format */
- if(super_vers < HDF5_SUPERBLOCK_VERSION_2) {
- uint32_t status_flags; /* File status flags */
- unsigned sym_leaf_k; /* Symbol table leaf node's 'K' value */
- unsigned snode_btree_k; /* B-tree symbol table internal node 'K' value */
- unsigned chunk_btree_k; /* B-tree chunk internal node 'K' value */
-
- /* Freespace version (hard-wired) */
- if(HDF5_FREESPACE_VERSION != *image++)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad free space version number")
-
- /* Root group version number (hard-wired) */
- if(HDF5_OBJECTDIR_VERSION != *image++)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad object directory version number")
-
- /* Skip over reserved byte */
- image++;
-
- /* Shared header version number (hard-wired) */
- if(HDF5_SHAREDHEADER_VERSION != *image++)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad shared-header format version number")
-
- /* Size of file addresses */
- sizeof_addr = *image++;
- if(sizeof_addr != 2 && sizeof_addr != 4 &&
- sizeof_addr != 8 && sizeof_addr != 16 && sizeof_addr != 32)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number in an address")
- sblock->sizeof_addr = sizeof_addr;
- udata->f->shared->sizeof_addr = sizeof_addr; /* Keep a local copy also */
-
- /* Size of file sizes */
- sizeof_size = *image++;
- if(sizeof_size != 2 && sizeof_size != 4 &&
- sizeof_size != 8 && sizeof_size != 16 && sizeof_size != 32)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number for object size")
- sblock->sizeof_size = sizeof_size;
- udata->f->shared->sizeof_size = sizeof_size; /* Keep a local copy also */
-
- /* Skip over reserved byte */
- image++;
-
- /* Various B-tree sizes */
- UINT16DECODE(image, sym_leaf_k);
- if(sym_leaf_k == 0)
- HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, NULL, "bad symbol table leaf node 1/2 rank")
- udata->sym_leaf_k = sym_leaf_k; /* Keep a local copy also */
-
- /* Need 'get' call to set other array values */
- UINT16DECODE(image, snode_btree_k);
- if(snode_btree_k == 0)
- HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, NULL, "bad 1/2 rank for btree internal nodes")
- udata->btree_k[H5B_SNODE_ID] = snode_btree_k;
-
- /*
- * Delay setting the value in the property list until we've checked
- * for the indexed storage B-tree internal 'K' value later.
- */
-
- /* File status flags (not really used yet) */
- UINT32DECODE(image, status_flags);
- HDassert(status_flags <= 255);
- sblock->status_flags = (uint8_t)status_flags;
- if(sblock->status_flags & ~H5F_SUPER_ALL_FLAGS)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad flag value for superblock")
-
- /*
- * If the superblock version # is greater than 0, read in the indexed
- * storage B-tree internal 'K' value
- */
- if(super_vers > HDF5_SUPERBLOCK_VERSION_DEF) {
- UINT16DECODE(image, chunk_btree_k);
-
- /* Reserved bytes are present only in version 1 */
- if(super_vers == HDF5_SUPERBLOCK_VERSION_1)
- image += 2; /* reserved */
- } /* end if */
- else
- chunk_btree_k = HDF5_BTREE_CHUNK_IK_DEF;
- udata->btree_k[H5B_CHUNK_ID] = chunk_btree_k;
-
- /* Remainder of "variable-sized" portion of superblock */
- H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->base_addr/*out*/);
- H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->ext_addr/*out*/);
- H5F_addr_decode(udata->f, (const uint8_t **)&image, &udata->stored_eof/*out*/);
- H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->driver_addr/*out*/);
-
- /* Allocate space for the root group symbol table entry */
- HDassert(!sblock->root_ent);
- if(NULL == (sblock->root_ent = (H5G_entry_t *)H5MM_calloc(sizeof(H5G_entry_t))))
- HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, NULL, "can't allocate space for root group symbol table entry")
-
- /* decode the root group symbol table entry */
- if(H5G_ent_decode(udata->f, (const uint8_t **)&image, sblock->root_ent) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, NULL, "can't decode root group symbol table entry")
-
- /* Set the root group address to the correct value */
- sblock->root_addr = sblock->root_ent->header;
-
- /* This step is for h5repart tool only. If user wants to change file driver
- * from family to sec2 while using h5repart, set the driver address to
- * undefined to let the library ignore the family driver information saved
- * in the superblock.
- */
- if(udata->ignore_drvrinfo && H5F_addr_defined(sblock->driver_addr)) {
- /* Eliminate the driver info */
- sblock->driver_addr = HADDR_UNDEF;
- udata->drvrinfo_removed = TRUE;
- } /* end if */
+ /* Check for older version of superblock format */
+ if(super_vers < HDF5_SUPERBLOCK_VERSION_2) {
+ uint32_t status_flags; /* File status flags */
+ unsigned sym_leaf_k; /* Symbol table leaf node's 'K' value */
+ unsigned snode_btree_k; /* B-tree symbol table internal node 'K' value */
+ unsigned chunk_btree_k; /* B-tree chunk internal node 'K' value */
+
+ /* Freespace version (hard-wired) */
+ if(HDF5_FREESPACE_VERSION != *image++)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad free space version number")
+
+ /* Root group version number (hard-wired) */
+ if(HDF5_OBJECTDIR_VERSION != *image++)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad object directory version number")
+
+ /* Skip over reserved byte */
+ image++;
+
+ /* Shared header version number (hard-wired) */
+ if(HDF5_SHAREDHEADER_VERSION != *image++)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad shared-header format version number")
+
+ /* Size of file addresses */
+ sizeof_addr = *image++;
+ if(sizeof_addr != 2 && sizeof_addr != 4 &&
+ sizeof_addr != 8 && sizeof_addr != 16 && sizeof_addr != 32)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number in an address")
+ sblock->sizeof_addr = sizeof_addr;
+ udata->f->shared->sizeof_addr = sizeof_addr; /* Keep a local copy also */
+
+ /* Size of file sizes */
+ sizeof_size = *image++;
+ if(sizeof_size != 2 && sizeof_size != 4 &&
+ sizeof_size != 8 && sizeof_size != 16 && sizeof_size != 32)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number for object size")
+ sblock->sizeof_size = sizeof_size;
+ udata->f->shared->sizeof_size = sizeof_size; /* Keep a local copy also */
+
+ /* Skip over reserved byte */
+ image++;
+
+ /* Various B-tree sizes */
+ UINT16DECODE(image, sym_leaf_k);
+ if(sym_leaf_k == 0)
+ HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, NULL, "bad symbol table leaf node 1/2 rank")
+ udata->sym_leaf_k = sym_leaf_k; /* Keep a local copy also */
+
+ /* Need 'get' call to set other array values */
+ UINT16DECODE(image, snode_btree_k);
+ if(snode_btree_k == 0)
+ HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, NULL, "bad 1/2 rank for btree internal nodes")
+ udata->btree_k[H5B_SNODE_ID] = snode_btree_k;
+
+ /*
+ * Delay setting the value in the property list until we've checked
+ * for the indexed storage B-tree internal 'K' value later.
+ */
- /* NOTE: Driver info block is decoded separately, later */
+ /* File status flags (not really used yet) */
+ UINT32DECODE(image, status_flags);
+ HDassert(status_flags <= 255);
+ sblock->status_flags = (uint8_t)status_flags;
+ if(sblock->status_flags & ~H5F_SUPER_ALL_FLAGS)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad flag value for superblock")
- } /* end if */
- else {
- uint32_t computed_chksum; /* Computed checksum */
- uint32_t read_chksum; /* Checksum read from file */
-
- /* Size of file addresses */
- sizeof_addr = *image++;
- if(sizeof_addr != 2 && sizeof_addr != 4 &&
- sizeof_addr != 8 && sizeof_addr != 16 && sizeof_addr != 32)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number in an address")
- sblock->sizeof_addr = sizeof_addr;
- udata->f->shared->sizeof_addr = sizeof_addr; /* Keep a local copy also */
-
- /* Size of file sizes */
- sizeof_size = *image++;
- if(sizeof_size != 2 && sizeof_size != 4 &&
- sizeof_size != 8 && sizeof_size != 16 && sizeof_size != 32)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number for object size")
- sblock->sizeof_size = sizeof_size;
- udata->f->shared->sizeof_size = sizeof_size; /* Keep a local copy also */
-
- /* File status flags (not really used yet) */
- sblock->status_flags = *image++;
- if(sblock->status_flags & ~H5F_SUPER_ALL_FLAGS)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad flag value for superblock")
-
- /* Base, superblock extension, end of file & root group object header addresses */
- H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->base_addr/*out*/);
- H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->ext_addr/*out*/);
- H5F_addr_decode(udata->f, (const uint8_t **)&image, &udata->stored_eof/*out*/);
- H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->root_addr/*out*/);
-
- /* Compute checksum for superblock */
- computed_chksum = H5_checksum_metadata(_image, (size_t)(image - (const uint8_t *)_image), 0);
-
- /* Decode checksum */
- UINT32DECODE(image, read_chksum);
-
- /* Verify correct checksum */
- if(read_chksum != computed_chksum)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "bad checksum on driver information block")
-
- /* The Driver Information Block may not appear with the version
- * 2 super block. Thus we set the driver_addr field of the in
- * core representation of the super block HADDR_UNDEF to prevent
- * any attempt to load the Driver Information Block.
- */
- sblock->driver_addr = HADDR_UNDEF;
- } /* end else */
+ /*
+ * If the superblock version # is greater than 0, read in the indexed
+ * storage B-tree internal 'K' value
+ */
+ if(super_vers > HDF5_SUPERBLOCK_VERSION_DEF) {
+ UINT16DECODE(image, chunk_btree_k);
+
+ /* Reserved bytes are present only in version 1 */
+ if(super_vers == HDF5_SUPERBLOCK_VERSION_1)
+ image += 2; /* reserved */
+ } /* end if */
+ else
+ chunk_btree_k = HDF5_BTREE_CHUNK_IK_DEF;
+ udata->btree_k[H5B_CHUNK_ID] = chunk_btree_k;
+
+ /* Remainder of "variable-sized" portion of superblock */
+ H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->base_addr/*out*/);
+ H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->ext_addr/*out*/);
+ H5F_addr_decode(udata->f, (const uint8_t **)&image, &udata->stored_eof/*out*/);
+ H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->driver_addr/*out*/);
+
+ /* Allocate space for the root group symbol table entry */
+ HDassert(!sblock->root_ent);
+ if(NULL == (sblock->root_ent = (H5G_entry_t *)H5MM_calloc(sizeof(H5G_entry_t))))
+ HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, NULL, "can't allocate space for root group symbol table entry")
+
+ /* decode the root group symbol table entry */
+ if(H5G_ent_decode(udata->f, (const uint8_t **)&image, sblock->root_ent) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, NULL, "can't decode root group symbol table entry")
+
+ /* Set the root group address to the correct value */
+ sblock->root_addr = sblock->root_ent->header;
+
+ /* This step is for h5repart tool only. If user wants to change file driver
+ * from family to sec2 while using h5repart, set the driver address to
+ * undefined to let the library ignore the family driver information saved
+ * in the superblock.
+ */
+ if(udata->ignore_drvrinfo && H5F_addr_defined(sblock->driver_addr)) {
+ /* Eliminate the driver info */
+ sblock->driver_addr = HADDR_UNDEF;
+ udata->drvrinfo_removed = TRUE;
+ } /* end if */
+
+ /* NOTE: Driver info block is decoded separately, later */
+
+ } /* end if */
+ else {
+ uint32_t read_chksum; /* Checksum read from file */
+
+ /* Size of file addresses */
+ sizeof_addr = *image++;
+ if(sizeof_addr != 2 && sizeof_addr != 4 &&
+ sizeof_addr != 8 && sizeof_addr != 16 && sizeof_addr != 32)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number in an address")
+ sblock->sizeof_addr = sizeof_addr;
+ udata->f->shared->sizeof_addr = sizeof_addr; /* Keep a local copy also */
+
+ /* Size of file sizes */
+ sizeof_size = *image++;
+ if(sizeof_size != 2 && sizeof_size != 4 &&
+ sizeof_size != 8 && sizeof_size != 16 && sizeof_size != 32)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad byte number for object size")
+ sblock->sizeof_size = sizeof_size;
+ udata->f->shared->sizeof_size = sizeof_size; /* Keep a local copy also */
+
+ /* File status flags (not really used yet) */
+ sblock->status_flags = *image++;
+ if(sblock->status_flags & ~H5F_SUPER_ALL_FLAGS)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad flag value for superblock")
+
+ /* Base, superblock extension, end of file & root group object header addresses */
+ H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->base_addr/*out*/);
+ H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->ext_addr/*out*/);
+ H5F_addr_decode(udata->f, (const uint8_t **)&image, &udata->stored_eof/*out*/);
+ H5F_addr_decode(udata->f, (const uint8_t **)&image, &sblock->root_addr/*out*/);
+
+ /* checksum verification already done in verify_chksum cb */
+
+ /* Decode checksum */
+ UINT32DECODE(image, read_chksum);
+
+ /* The Driver Information Block may not appear with the version
+ * 2 super block. Thus we set the driver_addr field of the in
+ * core representation of the super block HADDR_UNDEF to prevent
+ * any attempt to load the Driver Information Block.
+ */
+ sblock->driver_addr = HADDR_UNDEF;
} /* end else */
/* Sanity check */
@@ -759,9 +881,9 @@ done:
/*-------------------------------------------------------------------------
- * Function: H5F__cache_drvrinfo_get_load_size
+ * Function: H5F__cache_drvrinfo_get_initial_load_size
*
- * Purpose: Compute the size of the data structure on disk.
+ * Purpose: Compute the intiial size of the data structure on disk.
*
* Return: Non-negative on success/Negative on failure
*
@@ -772,7 +894,7 @@ done:
*-------------------------------------------------------------------------
*/
static herr_t
-H5F__cache_drvrinfo_get_load_size(const void H5_ATTR_UNUSED *udata, size_t *image_len)
+H5F__cache_drvrinfo_get_initial_load_size(void H5_ATTR_UNUSED *_udata, size_t *image_len)
{
FUNC_ENTER_STATIC_NOERR
@@ -783,7 +905,76 @@ H5F__cache_drvrinfo_get_load_size(const void H5_ATTR_UNUSED *udata, size_t *imag
*image_len = H5F_DRVINFOBLOCK_HDR_SIZE; /* Fixed size portion of driver info block */
FUNC_LEAVE_NOAPI(SUCCEED)
-} /* end H5F__cache_drvrinfo_get_load_size() */
+} /* end H5F__cache_drvrinfo_get_initial_load_size() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5F__cache_drvrinfo_get_final_load_size
+ *
+ * Purpose: Compute the final size of the data structure on disk.
+ *
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Quincey Koziol
+ * koziol@lbl.gov
+ * November 17, 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5F__cache_drvrinfo_get_final_load_size(const void *_image, size_t image_len,
+ void *_udata, size_t *actual_len)
+{
+ const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
+ H5F_drvrinfo_cache_ud_t *udata = (H5F_drvrinfo_cache_ud_t *)_udata; /* User data */
+ unsigned drv_vers; /* Version of driver info block */
+ size_t drvinfo_len; /* Length of encoded buffer */
+ haddr_t eoa; /* Current EOA for the file */
+ haddr_t min_eoa; /* Minimum EOA needed for reading the driver info */
+ htri_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_STATIC
+
+ /* Check arguments */
+ HDassert(image);
+ HDassert(udata);
+ HDassert(udata->f);
+ HDassert(actual_len);
+ HDassert(*actual_len == image_len);
+
+ /* Version number */
+ drv_vers = *image++;
+ if(drv_vers != HDF5_DRIVERINFO_VERSION_0)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "bad driver information block version number")
+
+ image += 3; /* reserved bytes */
+
+ /* Driver info size */
+ UINT32DECODE(image, drvinfo_len);
+
+ /* Sanity check */
+ HDassert(image_len == H5F_DRVINFOBLOCK_HDR_SIZE);
+
+ /* Extend the EOA if required so that we can read the complete driver info block */
+
+ /* Get current EOA... */
+ if((eoa = H5FD_get_eoa(udata->f->shared->lf, H5FD_MEM_SUPER)) == HADDR_UNDEF)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "driver get_eoa request failed")
+
+ /* ... if it is too small, extend it. */
+ min_eoa = udata->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE + drvinfo_len;
+
+ /* If it grew, set it */
+ if(H5F_addr_gt(min_eoa, eoa))
+ if(H5FD_set_eoa(udata->f->shared->lf, H5FD_MEM_SUPER, min_eoa) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "set end of space allocation request failed")
+
+ /* Set the final size for the cache image */
+ *actual_len = H5F_DRVINFOBLOCK_HDR_SIZE + drvinfo_len;
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F__cache_drvrinfo_get_final_load_size() */
/*-------------------------------------------------------------------------
@@ -838,35 +1029,11 @@ H5F__cache_drvrinfo_deserialize(const void *_image, size_t len, void *_udata,
drv_name[8] = '\0';
image += 8; /* advance past name/version */
- /* Handle metadata cache retry for variable-sized portion of the driver info block */
- if(len != (H5F_DRVINFOBLOCK_HDR_SIZE + drvinfo->len)) {
- /* Sanity check */
- HDassert(len == H5F_DRVINFOBLOCK_HDR_SIZE);
-
- /* extend the eoa if required so that we can read the complete driver info block */
- {
- haddr_t eoa;
- haddr_t min_eoa;
-
- /* get current eoa... */
- if ((eoa = H5FD_get_eoa(udata->f->shared->lf, H5FD_MEM_SUPER)) == HADDR_UNDEF)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, NULL, "driver get_eoa request failed")
-
- /* ... if it is too small, extend it. */
- min_eoa = udata->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE + drvinfo->len;
+ HDassert(len == (H5F_DRVINFOBLOCK_HDR_SIZE + drvinfo->len));
- if ( H5F_addr_gt(min_eoa, eoa) )
- if(H5FD_set_eoa(udata->f->shared->lf, H5FD_MEM_SUPER, min_eoa) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, \
- "set end of space allocation request failed")
- }
-
- } /* end if */
- else {
- /* Validate and decode driver information */
- if(H5FD_sb_load(udata->f->shared->lf, drv_name, image) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, NULL, "unable to decode driver information")
- } /* end if */
+ /* Validate and decode driver information */
+ if(H5FD_sb_load(udata->f->shared->lf, drv_name, image) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, NULL, "unable to decode driver information")
/* Sanity check */
HDassert((size_t)(image - (const uint8_t *)_image) <= len);
@@ -911,7 +1078,7 @@ H5F__cache_drvrinfo_image_len(const void *_thing, size_t *image_len)
/* Set the image length size */
*image_len = (size_t)(H5F_DRVINFOBLOCK_HDR_SIZE + /* Fixed-size portion of driver info block */
- drvinfo->len); /* Variable-size portion of driver info block */
+ drvinfo->len); /* Variable-size portion of driver info block */
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5F__cache_drvrinfo_image_len() */
generated by cgit v0.12 at 2024-10-30 17:55:25 (GMT)