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-rw-r--r--src/H5Fsuper_cache.c1439
1 files changed, 752 insertions, 687 deletions
diff --git a/src/H5Fsuper_cache.c b/src/H5Fsuper_cache.c
index ded845d..ac1f840 100644
--- a/src/H5Fsuper_cache.c
+++ b/src/H5Fsuper_cache.c
@@ -51,9 +51,6 @@
/* Local Macros */
/****************/
-/* Maximum size of super-block buffers */
-#define H5F_MAX_SUPERBLOCK_SIZE 134
-
/******************/
/* Local Typedefs */
@@ -70,28 +67,70 @@
/********************/
/* Metadata cache (H5AC) callbacks */
-static H5F_super_t *H5F_sblock_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *udata);
-static herr_t H5F_sblock_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t addr, H5F_super_t *sblock);
-static herr_t H5F_sblock_dest(H5F_t *f, H5F_super_t * sblock);
-static herr_t H5F_sblock_clear(H5F_t *f, H5F_super_t *sblock, hbool_t destroy);
-static herr_t H5F_sblock_size(const H5F_t *f, const H5F_super_t *sblock, size_t *size_ptr);
+static herr_t H5F__cache_superblock_get_load_size(const void *udata, size_t *image_len);
+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, hbool_t *compressed_ptr,
+ size_t *compressed_image_len_ptr);
+static herr_t H5F__cache_superblock_pre_serialize(const H5F_t *f,
+ hid_t dxpl_id, void *thing, haddr_t addr, size_t len,
+ size_t compressed_len, haddr_t *new_addr, size_t *new_len,
+ size_t *new_compressed_len, unsigned *flags);
+static herr_t H5F__cache_superblock_serialize(const H5F_t *f, void *image, size_t len,
+ 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 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, hbool_t *compressed_ptr,
+ size_t *compressed_image_len_ptr);
+static herr_t H5F__cache_drvrinfo_serialize(const H5F_t *f, void *image, size_t len,
+ void *thing);
+static herr_t H5F__cache_drvrinfo_free_icr(void *thing);
/*********************/
/* Package Variables */
/*********************/
-/* H5F inherits cache-like properties from H5AC */
+/* H5F superblock inherits cache-like properties from H5AC */
const H5AC_class_t H5AC_SUPERBLOCK[1] = {{
- H5AC_SUPERBLOCK_ID,
- (H5AC_load_func_t)H5F_sblock_load,
- (H5AC_flush_func_t)H5F_sblock_flush,
- (H5AC_dest_func_t)H5F_sblock_dest,
- (H5AC_clear_func_t)H5F_sblock_clear,
- (H5AC_notify_func_t)NULL,
- (H5AC_size_func_t)H5F_sblock_size,
+ H5AC_SUPERBLOCK_ID, /* Metadata client ID */
+ "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_deserialize, /* 'deserialize' callback */
+ H5F__cache_superblock_image_len, /* 'image_len' callback */
+ H5F__cache_superblock_pre_serialize,/* 'pre_serialize' callback */
+ H5F__cache_superblock_serialize, /* 'serialize' callback */
+ NULL, /* 'notify' callback */
+ H5F__cache_superblock_free_icr, /* 'free_icr' callback */
+ NULL, /* 'clear' callback */
+ NULL, /* 'fsf_size' callback */
+}};
+
+/* H5F driver info block inherits cache-like properties from H5AC */
+const H5AC_class_t H5AC_DRVRINFO[1] = {{
+ H5AC_DRVRINFO_ID, /* Metadata client ID */
+ "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_deserialize, /* 'deserialize' callback */
+ H5F__cache_drvrinfo_image_len, /* 'image_len' callback */
+ NULL, /* 'pre_serialize' callback */
+ H5F__cache_drvrinfo_serialize, /* 'serialize' callback */
+ NULL, /* 'notify' callback */
+ H5F__cache_drvrinfo_free_icr, /* 'free_icr' callback */
+ NULL, /* 'clear' callback */
+ NULL, /* 'fsf_size' callback */
}};
+
/*****************************/
/* Library Private Variables */
/*****************************/
@@ -107,546 +146,470 @@ H5FL_EXTERN(H5F_super_t);
/*-------------------------------------------------------------------------
- * Function: H5F_sblock_load
+ * Function: H5F__cache_superblock_get_load_size
*
- * Purpose: Loads the superblock from the file, and deserializes
- * its information into the H5F_super_t structure.
+ * Purpose: Compute the size of the data structure on disk.
*
- * Return: Success: SUCCEED
- * Failure: NULL
+ * Return: Non-negative on success/Negative on failure
*
- * Programmer: Mike McGreevy
- * mamcgree@hdfgroup.org
- * April 8, 2009
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * July 17, 2013
*
*-------------------------------------------------------------------------
*/
-static H5F_super_t *
-H5F_sblock_load(H5F_t *f, hid_t dxpl_id, haddr_t H5_ATTR_UNUSED addr, void *_udata)
+static herr_t
+H5F__cache_superblock_get_load_size(const void H5_ATTR_UNUSED *udata, size_t *image_len)
{
- H5F_super_t *sblock = NULL; /* File's superblock */
- haddr_t base_addr = HADDR_UNDEF; /* Base address of file */
- uint8_t sbuf[H5F_MAX_SUPERBLOCK_SIZE]; /* Buffer for superblock */
- H5P_genplist_t *dxpl; /* DXPL object */
- H5P_genplist_t *c_plist; /* File creation property list */
- H5F_file_t *shared; /* shared part of `file' */
- H5FD_t *lf; /* file driver part of `shared' */
- haddr_t stored_eof; /* stored end-of-file address in file */
- haddr_t eof; /* end of file address */
- uint8_t sizeof_addr; /* Size of offsets in the file (in bytes) */
- uint8_t sizeof_size; /* Size of lengths in the file (in bytes) */
- const size_t fixed_size = H5F_SUPERBLOCK_FIXED_SIZE; /*fixed sizeof superblock */
- size_t variable_size; /*variable sizeof superblock */
- uint8_t *p; /* Temporary pointer into encoding buffer */
- unsigned super_vers; /* Superblock version */
- hbool_t *dirtied = (hbool_t *)_udata; /* Set up dirtied out value */
- H5F_super_t *ret_value; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC_NOERR
/* Check arguments */
- HDassert(f);
- HDassert(H5F_addr_eq(addr, 0));
- HDassert(dirtied);
+ HDassert(image_len);
- /* Short cuts */
- shared = f->shared;
- lf = shared->lf;
+ /* Set the initial image length size */
+ *image_len = H5F_SUPERBLOCK_FIXED_SIZE + /* Fixed size of superblock */
+ H5F_SUPERBLOCK_MINIMAL_VARLEN_SIZE;
- /* Get the shared file creation property list */
- if(NULL == (c_plist = (H5P_genplist_t *)H5I_object(shared->fcpl_id)))
- HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "can't get property list")
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5F__cache_superblock_get_load_size() */
- /* Get the base address for the file in the VFD */
- if(HADDR_UNDEF == (base_addr = H5FD_get_base_addr(lf)))
- HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "failed to get base address for file driver")
+
+/*-------------------------------------------------------------------------
+ * Function: H5F__cache_superblock_deserialize
+ *
+ * Purpose: Loads an object from the disk.
+ *
+ * Return: Success: Pointer to new object
+ * Failure: NULL
+ *
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * July 18 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+static void *
+H5F__cache_superblock_deserialize(const void *_image, size_t len, void *_udata,
+ hbool_t H5_ATTR_UNUSED *dirty)
+{
+ H5F_super_t *sblock = NULL; /* File's superblock */
+ H5F_superblock_cache_ud_t *udata = (H5F_superblock_cache_ud_t *)_udata; /* User data */
+ const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
+ size_t variable_size; /* Sariable size of superblock */
+ 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) */
+ H5F_super_t *ret_value; /* Return value */
+
+ FUNC_ENTER_STATIC
+
+ /* Check arguments */
+ HDassert(image);
+ HDassert(udata);
+ HDassert(udata->f);
/* Allocate space for the superblock */
if(NULL == (sblock = H5FL_CALLOC(H5F_super_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
- /* The superblock must be flushed last (and collectively in parallel) */
- sblock->cache_info.flush_me_last = TRUE;
-#ifdef H5_HAVE_PARALLEL
- sblock->cache_info.flush_me_collectively = TRUE;
-#endif
-
- /* Get the DXPL plist object for DXPL ID */
- if(NULL == (dxpl = (H5P_genplist_t *)H5I_object(dxpl_id)))
- HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "can't get property list")
-
- /* Read fixed-size portion of the superblock */
- p = sbuf;
- H5_CHECK_OVERFLOW(fixed_size, size_t, haddr_t);
- if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, (haddr_t)fixed_size) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed")
- if(H5FD_read(lf, dxpl, H5FD_MEM_SUPER, (haddr_t)0, fixed_size, p) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_READERROR, NULL, "unable to read superblock")
-
/* Skip over signature (already checked when locating the superblock) */
- p += H5F_SIGNATURE_LEN;
+ image += H5F_SIGNATURE_LEN;
/* Superblock version */
- super_vers = *p++;
+ super_vers = *image++;
if(super_vers > HDF5_SUPERBLOCK_VERSION_LATEST)
HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad superblock version number")
- if(H5P_set(c_plist, H5F_CRT_SUPER_VERS_NAME, &super_vers) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set superblock version")
/* Record the superblock version */
sblock->super_vers = super_vers;
/* Sanity check */
- HDassert(((size_t)(p - sbuf)) == fixed_size);
+ HDassert(((size_t)(image - (const uint8_t *)_image)) == H5F_SUPERBLOCK_FIXED_SIZE);
+ HDassert(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, NULL, "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, NULL, "bad byte number for object size")
+ sblock->sizeof_addr = sizeof_addr;
+ sblock->sizeof_size = sizeof_size;
/* Determine the size of the variable-length part of the superblock */
- variable_size = (size_t)H5F_SUPERBLOCK_VARLEN_SIZE(super_vers, f);
+ variable_size = (size_t)H5F_SUPERBLOCK_VARLEN_SIZE(super_vers, sizeof_addr, sizeof_size);
HDassert(variable_size > 0);
- HDassert(fixed_size + variable_size <= sizeof(sbuf));
- /* Read in variable-sized portion of superblock */
- if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, (haddr_t)(fixed_size + variable_size)) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed")
- if(H5FD_read(lf, dxpl, H5FD_MEM_SUPER, (haddr_t)fixed_size, variable_size, p) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to read superblock")
+ /* 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));
- /* Check for older version of superblock format */
- if(super_vers < HDF5_SUPERBLOCK_VERSION_2) {
- uint32_t status_flags; /* File status flags */
- unsigned btree_k[H5B_NUM_BTREE_ID]; /* B-tree internal node 'K' values */
- unsigned sym_leaf_k; /* Symbol table leaf node's 'K' value */
-
- /* Freespace version (hard-wired) */
- if(HDF5_FREESPACE_VERSION != *p++)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad free space version number")
-
- /* Root group version number (hard-wired) */
- if(HDF5_OBJECTDIR_VERSION != *p++)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad object directory version number")
-
- /* Skip over reserved byte */
- p++;
-
- /* Shared header version number (hard-wired) */
- if(HDF5_SHAREDHEADER_VERSION != *p++)
- HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad shared-header format version number")
-
- /* Size of file addresses */
- sizeof_addr = *p++;
- 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")
- if(H5P_set(c_plist, H5F_CRT_ADDR_BYTE_NUM_NAME, &sizeof_addr) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set byte number in an address")
- shared->sizeof_addr = sizeof_addr; /* Keep a local copy also */
-
- /* Size of file sizes */
- sizeof_size = *p++;
- 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")
- if(H5P_set(c_plist, H5F_CRT_OBJ_BYTE_NUM_NAME, &sizeof_size) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set byte number for object size")
- shared->sizeof_size = sizeof_size; /* Keep a local copy also */
-
- /* Skip over reserved byte */
- p++;
-
- /* Various B-tree sizes */
- UINT16DECODE(p, sym_leaf_k);
- if(sym_leaf_k == 0)
- HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, NULL, "bad symbol table leaf node 1/2 rank")
- if(H5P_set(c_plist, H5F_CRT_SYM_LEAF_NAME, &sym_leaf_k) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set rank for symbol table leaf nodes")
- sblock->sym_leaf_k = sym_leaf_k; /* Keep a local copy also */
-
- /* Need 'get' call to set other array values */
- if(H5P_get(c_plist, H5F_CRT_BTREE_RANK_NAME, btree_k) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "unable to get rank for btree internal nodes")
- UINT16DECODE(p, btree_k[H5B_SNODE_ID]);
- if(btree_k[H5B_SNODE_ID] == 0)
- HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, NULL, "bad 1/2 rank for btree internal nodes")
- /*
- * 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(p, 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(p, btree_k[H5B_CHUNK_ID]);
- /* Reserved bytes are present only in version 1 */
- if(super_vers == HDF5_SUPERBLOCK_VERSION_1)
- p += 2; /* reserved */
- } /* end if */
- else
- btree_k[H5B_CHUNK_ID] = HDF5_BTREE_CHUNK_IK_DEF;
+ /* 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;
- /* Set the B-tree internal node values, etc */
- if(H5P_set(c_plist, H5F_CRT_BTREE_RANK_NAME, btree_k) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set rank for btree internal nodes")
- HDmemcpy(sblock->btree_k, btree_k, sizeof(unsigned) * (size_t)H5B_NUM_BTREE_ID); /* Keep a local copy also */
+ /*
+ * Delay setting the value in the property list until we've checked
+ * for the indexed storage B-tree internal 'K' value later.
+ */
- /* Remainder of "variable-sized" portion of superblock */
- H5F_addr_decode(f, (const uint8_t **)&p, &sblock->base_addr/*out*/);
- H5F_addr_decode(f, (const uint8_t **)&p, &sblock->ext_addr/*out*/);
- H5F_addr_decode(f, (const uint8_t **)&p, &stored_eof/*out*/);
- H5F_addr_decode(f, (const uint8_t **)&p, &sblock->driver_addr/*out*/);
+ /* 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")
- /* 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")
+ /*
+ * 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);
- /* decode the root group symbol table entry */
- if(H5G_ent_decode(f, (const uint8_t **)&p, sblock->root_ent) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, NULL, "can't decode root group symbol table entry")
+ /* 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 */
- /* Set the root group address to the correct value */
- sblock->root_addr = sblock->root_ent->header;
+ /* NOTE: Driver info block is decoded separately, later */
- /*
- * Check if superblock address is different from base address and
- * adjust base address and "end of address" address if so.
- */
- if(!H5F_addr_eq(base_addr, sblock->base_addr)) {
- /* Check if the superblock moved earlier in the file */
- if(H5F_addr_lt(base_addr, sblock->base_addr))
- stored_eof -= (sblock->base_addr - base_addr);
- else
- /* The superblock moved later in the file */
- stored_eof += (base_addr - sblock->base_addr);
+ } /* 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 */
+ } /* end else */
- /* Adjust base address for offsets of the HDF5 data in the file */
- sblock->base_addr = base_addr;
+ /* Sanity check */
+ HDassert((size_t)(image - (const uint8_t *)_image) <= len);
- /* Set the base address for the file in the VFD now */
- if(H5FD_set_base_addr(lf, sblock->base_addr) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTSET, NULL, "failed to set base address for file driver")
+ /* Set return value */
+ ret_value = sblock;
- /* Indicate that the superblock should be marked dirty */
- *dirtied = TRUE;
- } /* end if */
+done:
+ /* Release the [possibly partially initialized] superblock on error */
+ if(!ret_value && sblock)
+ if(H5F__super_free(sblock) < 0)
+ HDONE_ERROR(H5E_FILE, H5E_CANTFREE, NULL, "unable to destroy superblock data")
- /* 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(H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO)) {
- /* Eliminate the driver info */
- sblock->driver_addr = HADDR_UNDEF;
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5F__cache_superblock_deserialize() */
- /* Indicate that the superblock should be marked dirty */
- *dirtied = TRUE;
- } /* end if */
+
+/*-------------------------------------------------------------------------
+ * Function: H5F__cache_superblock_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
+ * July 19, 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5F__cache_superblock_image_len(const void *_thing, size_t *image_len, hbool_t *compressed_ptr, size_t H5_ATTR_UNUSED *compressed_image_len_ptr)
+{
+ const H5F_super_t *sblock = (const H5F_super_t *)_thing; /* Pointer to the object */
- /* Decode the optional driver information block */
- if(H5F_addr_defined(sblock->driver_addr)) {
- uint8_t dbuf[H5F_MAX_DRVINFOBLOCK_SIZE]; /* Buffer for driver info block */
- char drv_name[9]; /* Name of driver */
- unsigned drv_vers; /* Version of driver info block */
- size_t drv_variable_size; /* Size of variable-length portion of driver info block, in bytes */
-
- /* Read in fixed-sized portion of driver info block */
- p = dbuf;
- if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, sblock->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed")
- if(H5FD_read(lf, dxpl, H5FD_MEM_SUPER, sblock->driver_addr, (size_t)H5F_DRVINFOBLOCK_HDR_SIZE, p) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to read driver information block")
-
- /* Version number */
- drv_vers = *p++;
- if(drv_vers != HDF5_DRIVERINFO_VERSION_0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "bad driver information block version number")
-
- p += 3; /* reserved bytes */
-
- /* Driver info size */
- UINT32DECODE(p, drv_variable_size);
-
- /* Sanity check */
- HDassert(H5F_DRVINFOBLOCK_HDR_SIZE + drv_variable_size <= sizeof(dbuf));
-
- /* Driver name and/or version */
- HDstrncpy(drv_name, (const char *)p, (size_t)8);
- drv_name[8] = '\0';
- p += 8; /* advance past name/version */
-
- /* Read in variable-sized portion of driver info block */
- if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, sblock->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE + drv_variable_size) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "set end of space allocation request failed")
- if(H5FD_read(lf, dxpl, H5FD_MEM_SUPER, sblock->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE, drv_variable_size, p) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to read file driver information")
-
- /* Decode driver information */
- if(H5FD_sb_load(lf, drv_name, p) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to decode driver information")
- } /* end if */
- } /* end if */
- else {
- uint32_t computed_chksum; /* Computed checksum */
- uint32_t read_chksum; /* Checksum read from file */
-
- /* Size of file addresses */
- sizeof_addr = *p++;
- 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")
- if(H5P_set(c_plist, H5F_CRT_ADDR_BYTE_NUM_NAME, &sizeof_addr) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set byte number in an address")
- shared->sizeof_addr = sizeof_addr; /* Keep a local copy also */
-
- /* Size of file sizes */
- sizeof_size = *p++;
- 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")
- if(H5P_set(c_plist, H5F_CRT_OBJ_BYTE_NUM_NAME, &sizeof_size) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, NULL, "unable to set byte number for object size")
- shared->sizeof_size = sizeof_size; /* Keep a local copy also */
-
- /* File status flags (not really used yet) */
- sblock->status_flags = *p++;
- 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(f, (const uint8_t **)&p, &sblock->base_addr/*out*/);
- H5F_addr_decode(f, (const uint8_t **)&p, &sblock->ext_addr/*out*/);
- H5F_addr_decode(f, (const uint8_t **)&p, &stored_eof/*out*/);
- H5F_addr_decode(f, (const uint8_t **)&p, &sblock->root_addr/*out*/);
-
- /* Compute checksum for superblock */
- computed_chksum = H5_checksum_metadata(sbuf, (size_t)(p - sbuf), 0);
-
- /* Decode checksum */
- UINT32DECODE(p, read_chksum);
-
- /* Verify correct checksum */
- if(read_chksum != computed_chksum)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "bad checksum on driver information block")
+ FUNC_ENTER_STATIC_NOERR
- /*
- * Check if superblock address is different from base address and
- * adjust base address and "end of address" address if so.
- */
- if(!H5F_addr_eq(base_addr, sblock->base_addr)) {
- /* Check if the superblock moved earlier in the file */
- if(H5F_addr_lt(base_addr, sblock->base_addr))
- stored_eof -= (sblock->base_addr - base_addr);
- else
- /* The superblock moved later in the file */
- stored_eof += (base_addr - sblock->base_addr);
+ /* Check arguments */
+ HDassert(sblock);
+ HDassert(sblock->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+ HDassert(sblock->cache_info.type == H5AC_SUPERBLOCK);
+ HDassert(image_len);
+ HDassert(compressed_ptr);
- /* Adjust base address for offsets of the HDF5 data in the file */
- sblock->base_addr = base_addr;
+ /* Set the image length size */
+ *image_len = (size_t)H5F_SUPERBLOCK_SIZE(sblock);
- /* Set the base address for the file in the VFD now */
- if(H5FD_set_base_addr(lf, sblock->base_addr) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTSET, NULL, "failed to set base address for file driver")
+ /* Set *compressed_ptr to FALSE unconditionally */
+ *compressed_ptr = FALSE;
- /* Indicate that the superblock should be marked dirty */
- *dirtied = TRUE;
- } /* end if */
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5F__cache_superblock_image_len() */
- /* Get the B-tree internal node values, etc */
- if(H5P_get(c_plist, H5F_CRT_BTREE_RANK_NAME, sblock->btree_k) < 0)
- HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "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_PLIST, H5E_CANTGET, NULL, "unable to get rank for btree internal nodes")
- } /* end else */
+
+/*-------------------------------------------------------------------------
+ * Function: H5FS__cache_hdf_pre_serialize
+ *
+ * Purpose: The current use of this function is a cludge to repair an
+ * oversight in the conversion of the superblock code to use the
+ * version 3 cache.
+ *
+ * In the V2 metadata cache callbacks, the superblock dirver info
+ * message was updated in the flush routine. Note that this
+ * operation only applies to version 2 or later superblocks.
+ *
+ * Somehow, this functionality was lost in the conversion to use
+ * the V3 cache, causing failures with the multi file driver
+ * (and possibly the family file driver as well).
+ *
+ * Performing this operation is impossible in the current
+ * serialize routine, as the dxpl_id is not available. While
+ * I am pretty sure that this is not the correct place for this
+ * functionality, as I can see it causing problems with both
+ * journaling and possibly parallel HDF5 as well, I am placing
+ * code for the necessary update in the pre_serialize call for
+ * now for testing purposes. We will almost certainly want to
+ * change this.
+ *
+ * Return: Success: SUCCEED
+ * Failure: FAIL
+ *
+ * Programmer: John Mainzer
+ * 10/82/14
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5F__cache_superblock_pre_serialize(const H5F_t *f, hid_t dxpl_id,
+ void *_thing, haddr_t H5_ATTR_UNUSED addr, size_t H5_ATTR_UNUSED len,
+ size_t H5_ATTR_UNUSED compressed_len, haddr_t H5_ATTR_UNUSED *new_addr,
+ size_t H5_ATTR_UNUSED *new_len, size_t H5_ATTR_UNUSED *new_compressed_len,
+ unsigned H5_ATTR_UNUSED *flags)
+{
+ H5F_super_t *sblock = (H5F_super_t *)_thing; /* Pointer to the super block */
+ herr_t ret_value = SUCCEED; /* Return value */
- /*
- * 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_PLIST, H5E_CANTSET, NULL, "unable to set userblock size")
+ FUNC_ENTER_NOAPI_NOINIT
- /*
- * 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.
- */
- if(HADDR_UNDEF == (eof = H5FD_get_eof(lf, H5FD_MEM_DEFAULT)))
- HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "unable to determine file size")
-
- /* (Account for the stored EOF being absolute offset -QAK) */
- if((eof + sblock->base_addr) < stored_eof)
- HGOTO_ERROR(H5E_FILE, H5E_TRUNCATED, NULL,
- "truncated file: eof = %llu, sblock->base_addr = %llu, stored_eof = %llu",
- (unsigned long long)eof, (unsigned long long)sblock->base_addr, (unsigned long long)stored_eof)
-
- /*
- * Tell the file driver how much address space has already been
- * allocated so that it knows how to allocate additional memory.
- */
- /* (Account for the stored EOA being absolute offset -NAF) */
- if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, stored_eof - sblock->base_addr) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to set end-of-address marker for file")
-
- /* Read the file's superblock extension, if there is one. */
- 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.
+ /* Sanity check */
+ HDassert(f);
+ HDassert(sblock);
+ HDassert(sblock->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+ HDassert(sblock->cache_info.type == H5AC_SUPERBLOCK);
+ HDassert(flags);
+
+ if(sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2) {
+ /* WARNING: This code almost certainly doesn't belong here. Must
+ * discuss with Quincey where to put it. Note issues
+ * for journaling and possibly parallel.
+ *
+ * -- JRM
*/
- HDassert(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.
+ /* Update the driver information message in the superblock extension
+ * if appropriate.
*/
- if(H5F_addr_gt(sblock->ext_addr, 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(H5FD_set_eoa(lf, H5FD_MEM_OHDR, (haddr_t)(sblock->ext_addr + 1024)) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to set end-of-address marker for file")
- } /* end if */
+ if(H5F_addr_defined(sblock->ext_addr)) {
+ size_t driver_size; /* Size of driver info block (bytes)*/
+ H5O_loc_t ext_loc; /* "Object location" for superblock extension */
- /* Open the superblock extension */
- if(H5F_super_ext_open(f, sblock->ext_addr, &ext_loc) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENOBJ, NULL, "unable to open file's superblock extension")
+ HDassert(sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2);
+
+ /* Open the superblock extension's object header */
+ if(H5F_super_ext_open((H5F_t *)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, dxpl_id)) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "unable to read object header")
- if(status) {
/* Check for ignoring the driver info for this file */
- if(H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO)) {
- /* Indicate that the superblock should be marked dirty */
- *dirtied = TRUE;
- } /* end if */
- else {
- /* Retrieve the 'driver info' structure */
- if(NULL == H5O_msg_read(&ext_loc, H5O_DRVINFO_ID, &drvinfo, dxpl_id))
- HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "driver info message not present")
-
- /* Decode driver information */
- if(H5FD_sb_load(lf, drvinfo.name, drvinfo.buf) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to decode driver information")
-
- /* Reset driver info message */
- H5O_msg_reset(H5O_DRVINFO_ID, &drvinfo);
- } /* end else */
- } /* end if */
+ if(!H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO)) {
+ /* 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 */
- /* Read in the shared OH message information if there is any */
- if(H5SM_get_info(&ext_loc, c_plist, dxpl_id) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "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, dxpl_id)) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "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, dxpl_id))
- HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "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_PLIST, H5E_CANTSET, NULL, "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_PLIST, H5E_CANTSET, NULL, "unable to set rank for symbol table leaf nodes")
- } /* end if */
+ /* Sanity check */
+ HDassert(driver_size <= H5F_MAX_DRVINFOBLOCK_SIZE);
- /* Check for the extension having a 'free-space manager info' message */
- if((status = H5O_msg_exists(&ext_loc, H5O_FSINFO_ID, dxpl_id)) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "unable to check object header")
- if(status) {
- H5O_fsinfo_t fsinfo; /* Free-space manager info message from superblock extension */
-
- /* Retrieve the 'free-space manager info' structure */
- if(NULL == H5O_msg_read(&ext_loc, H5O_FSINFO_ID, &fsinfo, dxpl_id))
- HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, NULL, "unable to get free-space manager info message")
-
- if(shared->fs_strategy != fsinfo.strategy) {
- 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, NULL, "unable to set file space strategy")
- } /* end if */
- if(shared->fs_threshold != fsinfo.threshold) {
- 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, NULL, "unable to set file space strategy")
- } /* end if */
-
- /* set free-space manager addresses */
- shared->fs_addr[0] = HADDR_UNDEF;
- for(u = 1; u < NELMTS(f->shared->fs_addr); u++)
- shared->fs_addr[u] = fsinfo.fs_addr[u-1];
- } /* end if */
+ /* 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")
- /* Close superblock extension */
- if(H5F_super_ext_close(f, &ext_loc, dxpl_id, FALSE) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, NULL, "unable to close file's superblock extension")
- } /* end if */
+ /* Write driver info information to the superblock extension */
+ drvinfo.len = driver_size;
+ drvinfo.buf = dbuf;
+ if(H5O_msg_write(&ext_loc, H5O_DRVINFO_ID, H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, &drvinfo, dxpl_id) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "unable to update driver info header message")
+ } /* end if */
+ } /* end if */
- /* Set return value */
- ret_value = sblock;
+ /* Close the superblock extension object header */
+ if(H5F_super_ext_close((H5F_t *)f, &ext_loc, dxpl_id, FALSE) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEOBJ, FAIL, "unable to close file's superblock extension")
+ } /* end if */
+ } /* end if */
done:
- /* Release the [possibly partially initialized] superblock on errors */
- if(!ret_value && sblock)
- if(H5F__super_free(sblock) < 0)
- HDONE_ERROR(H5E_FILE, H5E_CANTFREE, NULL, "unable to destroy superblock data")
-
FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5F_sblock_load() */
+} /* end H5FS_cache_superblock_pre_serialize() */
/*-------------------------------------------------------------------------
- * Function: H5F_sblock_flush
+ * Function: H5F__cache_superblock_serialize
*
- * Purpose: Flushes the superblock.
+ * Purpose: Flushes a dirty object to disk.
*
- * Return: Success: SUCCEED
- * Failure: NULL
+ * Return: Non-negative on success/Negative on failure
*
- * Programmer: Mike McGreevy
- * mamcgree@hdfgroup.org
- * April 8, 2009
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * July 19 2013
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5F_sblock_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t H5_ATTR_UNUSED addr,
- H5F_super_t *sblock)
+H5F__cache_superblock_serialize(const H5F_t *f, void *_image, size_t H5_ATTR_UNUSED len,
+ void *_thing)
{
- herr_t ret_value = SUCCEED;
+ H5F_super_t *sblock = (H5F_super_t *)_thing; /* Pointer to the object */
+ uint8_t *image = (uint8_t *)_image; /* Pointer into raw data buffer */
+ haddr_t rel_eof; /* Relative EOF for file */
+ herr_t ret_value = SUCCEED; /* Return value */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC
- /* check arguments */
+ /* Sanity check */
HDassert(f);
- HDassert(H5F_addr_eq(addr, 0));
+ HDassert(image);
HDassert(sblock);
-
+
/* Assert that the superblock is marked as being flushed last (and
collectively in parallel) */
/* (We'll rely on the cache to make sure it actually *is* flushed
@@ -656,301 +619,403 @@ H5F_sblock_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t H5_ATTR_UNUSE
HDassert(sblock->cache_info.flush_me_collectively);
#endif
- if(sblock->cache_info.is_dirty) {
- H5P_genplist_t *dxpl; /* DXPL object */
- uint8_t buf[H5F_MAX_SUPERBLOCK_SIZE + H5F_MAX_DRVINFOBLOCK_SIZE]; /* Superblock & driver info blockencoding buffer */
- uint8_t *p; /* Ptr into encoding buffer */
- haddr_t rel_eof; /* Relative EOF for file */
- size_t superblock_size; /* Size of superblock, in bytes */
- size_t driver_size; /* Size of driver info block (bytes)*/
+ /* Encode the common portion of the file superblock for all versions */
+ HDmemcpy(image, H5F_SIGNATURE, (size_t)H5F_SIGNATURE_LEN);
+ image += H5F_SIGNATURE_LEN;
+ *image++ = (uint8_t)sblock->super_vers;
- /* Encode the common portion of the file superblock for all versions */
- p = buf;
- HDmemcpy(p, H5F_SIGNATURE, (size_t)H5F_SIGNATURE_LEN);
- p += H5F_SIGNATURE_LEN;
- *p++ = (uint8_t)sblock->super_vers;
+ /* Check for older version of superblock format */
+ if(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2) {
+ *image++ = (uint8_t)HDF5_FREESPACE_VERSION; /* (hard-wired) */
+ *image++ = (uint8_t)HDF5_OBJECTDIR_VERSION; /* (hard-wired) */
+ *image++ = 0; /* reserved*/
- /* Check for older version of superblock format */
- if(sblock->super_vers < HDF5_SUPERBLOCK_VERSION_2) {
- *p++ = (uint8_t)HDF5_FREESPACE_VERSION; /* (hard-wired) */
- *p++ = (uint8_t)HDF5_OBJECTDIR_VERSION; /* (hard-wired) */
- *p++ = 0; /* reserved*/
+ *image++ = (uint8_t)HDF5_SHAREDHEADER_VERSION; /* (hard-wired) */
+ *image++ = sblock->sizeof_addr;
+ *image++ = sblock->sizeof_size;
+ *image++ = 0; /* reserved */
- *p++ = (uint8_t)HDF5_SHAREDHEADER_VERSION; /* (hard-wired) */
- *p++ = (uint8_t)H5F_SIZEOF_ADDR(f);
- *p++ = (uint8_t)H5F_SIZEOF_SIZE(f);
- *p++ = 0; /* reserved */
+ UINT16ENCODE(image, sblock->sym_leaf_k);
+ UINT16ENCODE(image, sblock->btree_k[H5B_SNODE_ID]);
+ UINT32ENCODE(image, (uint32_t)sblock->status_flags);
- UINT16ENCODE(p, sblock->sym_leaf_k);
- UINT16ENCODE(p, sblock->btree_k[H5B_SNODE_ID]);
- UINT32ENCODE(p, (uint32_t)sblock->status_flags);
+ /*
+ * Versions of the superblock >0 have the indexed storage B-tree
+ * internal 'K' value stored
+ */
+ if(sblock->super_vers > HDF5_SUPERBLOCK_VERSION_DEF) {
+ UINT16ENCODE(image, sblock->btree_k[H5B_CHUNK_ID]);
+ *image++ = 0; /*reserved */
+ *image++ = 0; /*reserved */
+ } /* end if */
- /*
- * Versions of the superblock >0 have the indexed storage B-tree
- * internal 'K' value stored
- */
- if(sblock->super_vers > HDF5_SUPERBLOCK_VERSION_DEF) {
- UINT16ENCODE(p, sblock->btree_k[H5B_CHUNK_ID]);
- *p++ = 0; /*reserved */
- *p++ = 0; /*reserved */
- } /* end if */
+ /* Encode the base address */
+ H5F_addr_encode(f, &image, sblock->base_addr);
- /* Encode the base address */
- H5F_addr_encode(f, &p, sblock->base_addr);
-
- /* Encode the address of global free-space index */
- H5F_addr_encode(f, &p, sblock->ext_addr);
-
- /* Encode the end-of-file address. Note that at this point in time,
- * the EOF value itself may not be reflective of the file's size, as
- * we will eventually truncate the file to match the EOA value. As
- * such, use the EOA value in its place, knowing that the current EOF
- * value will ultimately match it. */
- if ((rel_eof = H5FD_get_eoa(f->shared->lf, H5FD_MEM_SUPER)) == HADDR_UNDEF)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "driver get_eoa request failed")
- H5F_addr_encode(f, &p, (rel_eof + sblock->base_addr));
-
- /* Encode the driver informaton block address */
- H5F_addr_encode(f, &p, sblock->driver_addr);
-
- /* Encode the root group object entry, including the cached stab info */
- if(H5G_ent_encode(f, &p, sblock->root_ent) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTENCODE, FAIL, "can't encode root group symbol table entry")
-
- /* Encode the driver information block. */
- H5_CHECKED_ASSIGN(driver_size, size_t, H5FD_sb_size(f->shared->lf), hsize_t);
-
- /* Checking whether driver block address is defined here is to handle backward
- * compatibility. If the file was created with v1.6 library or earlier and no
- * driver info block was written in the superblock, we don't write it either even
- * though there's some driver info. Otherwise, the driver block extended will
- * overwrite the (meta)data right after the superblock. This situation happens to
- * the family driver particularly. SLU - 2009/3/24
- */
- if(driver_size > 0 && H5F_addr_defined(sblock->driver_addr)) {
- char driver_name[9]; /* Name of driver, for driver info block */
- uint8_t *dbuf = p; /* Pointer to beginning of driver info */
+ /* Encode the address of global free-space index */
+ H5F_addr_encode(f, &image, sblock->ext_addr);
- /* Encode the driver information block */
- *p++ = HDF5_DRIVERINFO_VERSION_0; /* Version */
- *p++ = 0; /* reserved */
- *p++ = 0; /* reserved */
- *p++ = 0; /* reserved */
+ /* Encode the end-of-file address. Note that at this point in time,
+ * the EOF value itself may not be reflective of the file's size, as
+ * we will eventually truncate the file to match the EOA value. As
+ * such, use the EOA value in its place, knowing that the current EOF
+ * value will ultimately match it. */
+ if ((rel_eof = H5FD_get_eoa(f->shared->lf, H5FD_MEM_SUPER)) == HADDR_UNDEF)
+ HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "driver get_eoa request failed")
+ H5F_addr_encode(f, &image, (rel_eof + sblock->base_addr));
- /* Driver info size, excluding header */
- UINT32ENCODE(p, driver_size);
+ /* Encode the driver informaton block address */
+ H5F_addr_encode(f, &image, sblock->driver_addr);
- /* Encode driver-specific data */
- if(H5FD_sb_encode(f->shared->lf, driver_name, dbuf + H5F_DRVINFOBLOCK_HDR_SIZE) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to encode driver information")
+ /* Encode the root group object entry, including the cached stab info */
+ if(H5G_ent_encode(f, &image, sblock->root_ent) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTENCODE, FAIL, "can't encode root group symbol table entry")
- /* Store driver name (set in 'H5FD_sb_encode' call above) */
- HDmemcpy(p, driver_name, (size_t)8);
+ /* NOTE: Driver info block is handled separately */
- /* Advance buffer pointer past name & variable-sized portion of driver info */
- /* (for later use in computing the superblock size) */
- p += 8 + driver_size;
- } /* end if */
- } /* end if */
- else {
- uint32_t chksum; /* Checksum temporary variable */
- H5O_loc_t *root_oloc; /* Pointer to root group's object location */
+ } /* end if */
+ else { /* sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2 */
+ uint32_t chksum; /* Checksum temporary variable */
+ H5O_loc_t *root_oloc; /* Pointer to root group's object location */
- /* Size of file addresses & offsets, and status flags */
- *p++ = (uint8_t)H5F_SIZEOF_ADDR(f);
- *p++ = (uint8_t)H5F_SIZEOF_SIZE(f);
- *p++ = sblock->status_flags;
+ /* Size of file addresses & offsets, and status flags */
+ *image++ = sblock->sizeof_addr;
+ *image++ = sblock->sizeof_size;
+ *image++ = sblock->status_flags;
- /* Encode the base address */
- H5F_addr_encode(f, &p, sblock->base_addr);
+ /* Encode the base address */
+ H5F_addr_encode(f, &image, sblock->base_addr);
- /* Encode the address of the superblock extension */
- H5F_addr_encode(f, &p, sblock->ext_addr);
+ /* Encode the address of the superblock extension */
+ H5F_addr_encode(f, &image, sblock->ext_addr);
- /* At this point in time, the EOF value itself may
- * not be reflective of the file's size, since we'll eventually
- * truncate it to match the EOA value. As such, use the EOA value
- * in its place, knowing that the current EOF value will
- * ultimately match it. */
- if ((rel_eof = H5FD_get_eoa(f->shared->lf, H5FD_MEM_SUPER)) == HADDR_UNDEF)
- HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "driver get_eoa request failed")
- H5F_addr_encode(f, &p, (rel_eof + sblock->base_addr));
+ /* At this point in time, the EOF value itself may
+ * not be reflective of the file's size, since we'll eventually
+ * truncate it to match the EOA value. As such, use the EOA value
+ * in its place, knowing that the current EOF value will
+ * ultimately match it. */
+ if ((rel_eof = H5FD_get_eoa(f->shared->lf, H5FD_MEM_SUPER)) == HADDR_UNDEF)
+ HGOTO_ERROR(H5E_RESOURCE, H5E_CANTGET, FAIL, "driver get_eoa request failed")
+ H5F_addr_encode(f, &image, (rel_eof + sblock->base_addr));
- /* Retrieve information for root group */
- if(NULL == (root_oloc = H5G_oloc(f->shared->root_grp)))
- HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to retrieve root group information")
+ /* Retrieve information for root group */
+ if(NULL == (root_oloc = H5G_oloc(f->shared->root_grp)))
+ HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to retrieve root group information")
- /* Encode address of root group's object header */
- H5F_addr_encode(f, &p, root_oloc->addr);
+ /* Encode address of root group's object header */
+ H5F_addr_encode(f, &image, root_oloc->addr);
- /* Compute superblock checksum */
- chksum = H5_checksum_metadata(buf, ((size_t)H5F_SUPERBLOCK_SIZE(sblock->super_vers, f) - H5F_SIZEOF_CHKSUM), 0);
+ /* Compute superblock checksum */
+ chksum = H5_checksum_metadata(_image, ((size_t)H5F_SUPERBLOCK_SIZE(sblock) - H5F_SIZEOF_CHKSUM), 0);
- /* Superblock checksum */
- UINT32ENCODE(p, chksum);
+ /* Superblock checksum */
+ UINT32ENCODE(image, chksum);
- /* Sanity check */
- HDassert((size_t)(p - buf) == (size_t)H5F_SUPERBLOCK_SIZE(sblock->super_vers, f));
- } /* end else */
+ /* Sanity check */
+ HDassert((size_t)(image - (uint8_t *)_image) == (size_t)H5F_SUPERBLOCK_SIZE(sblock));
+ } /* end else */
- /* Retrieve the total size of the superblock info */
- H5_CHECKED_ASSIGN(superblock_size, size_t, (p - buf), ptrdiff_t);
+ /* Sanity check */
+ HDassert((size_t)(image - (uint8_t *)_image) == len);
- /* Double check we didn't overrun the block (unlikely) */
- HDassert(superblock_size <= sizeof(buf));
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* H5F__cache_superblock_serialize() */
- /* Get the DXPL plist object for DXPL ID */
- if(NULL == (dxpl = (H5P_genplist_t *)H5I_object(dxpl_id)))
- HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list")
+
+/*-------------------------------------------------------------------------
+ * Function: H5F__cache_superblock_free_icr
+ *
+ * Purpose: Destroy/release an "in core representation" of a data
+ * structure
+ *
+ * Note: The metadata cache sets the object's cache_info.magic to
+ * H5C__H5C_CACHE_ENTRY_T_BAD_MAGIC before calling a free_icr
+ * callback (checked in assert).
+ *
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * July 20, 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5F__cache_superblock_free_icr(void *_thing)
+{
+ H5F_super_t *sblock = (H5F_super_t *)_thing; /* Pointer to the object */
+ herr_t ret_value = SUCCEED; /* Return value */
- /* Write superblock */
- /* (always at relative address 0) */
- if(H5FD_write(f->shared->lf, dxpl, H5FD_MEM_SUPER, (haddr_t)0, superblock_size, buf) < 0)
- HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "unable to write superblock")
+ FUNC_ENTER_STATIC
- /* Check for newer version of superblock format & superblock extension */
- if(sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_2 && H5F_addr_defined(sblock->ext_addr)) {
- H5O_loc_t ext_loc; /* "Object location" for superblock extension */
+ /* Sanity check */
+ HDassert(sblock);
+ HDassert(sblock->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_BAD_MAGIC);
+ HDassert(sblock->cache_info.type == H5AC_SUPERBLOCK);
- /* Open the superblock extension's object header */
- 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")
+ /* Destroy superblock */
+ if(H5F__super_free(sblock) < 0)
+ HGOTO_ERROR(H5E_BTREE, H5E_CANTFREE, FAIL, "unable to free superblock")
- /* Check for ignoring the driver info for this file */
- if(!H5F_HAS_FEATURE(f, H5FD_FEAT_IGNORE_DRVRINFO)) {
- /* 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 */
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* H5F__cache_superblock_free_icr() */
- /* Sanity check */
- HDassert(driver_size <= H5F_MAX_DRVINFOBLOCK_SIZE);
+
+/*-------------------------------------------------------------------------
+ * Function: H5F__cache_drvrinfo_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
+ * July 20, 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5F__cache_drvrinfo_get_load_size(const void H5_ATTR_UNUSED *udata, size_t *image_len)
+{
+ FUNC_ENTER_STATIC_NOERR
- /* 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")
+ /* Check arguments */
+ HDassert(image_len);
- /* Write driver info information to the superblock extension */
- drvinfo.len = driver_size;
- drvinfo.buf = dbuf;
- if(H5O_msg_write(&ext_loc, H5O_DRVINFO_ID, H5O_MSG_FLAG_DONTSHARE, H5O_UPDATE_TIME, &drvinfo, dxpl_id) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "unable to update driver info header message")
+ /* Set the initial image length size */
+ *image_len = H5F_DRVINFOBLOCK_HDR_SIZE; /* Fixed size portion of driver info block */
- } /* end if */
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5F__cache_drvrinfo_get_load_size() */
- } /* end if */
+
+/*-------------------------------------------------------------------------
+ * Function: H5F__cache_drvrinfo_deserialize
+ *
+ * Purpose: Loads an object from the disk.
+ *
+ * Return: Success: Pointer to a new B-tree.
+ * Failure: NULL
+ *
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * July 20 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+static void *
+H5F__cache_drvrinfo_deserialize(const void *_image, size_t len, void *_udata,
+ hbool_t H5_ATTR_UNUSED *dirty)
+{
+ H5O_drvinfo_t *drvinfo = NULL; /* Driver info */
+ H5F_drvrinfo_cache_ud_t *udata = (H5F_drvrinfo_cache_ud_t *)_udata; /* User data */
+ const uint8_t *image = (const uint8_t *)_image; /* Pointer into raw data buffer */
+ char drv_name[9]; /* Name of driver */
+ unsigned drv_vers; /* Version of driver info block */
+ H5O_drvinfo_t *ret_value; /* Return value */
- /* Close the superblock extension object header */
- if(H5F_super_ext_close(f, &ext_loc, dxpl_id, FALSE) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEOBJ, FAIL, "unable to close file's superblock extension")
- } /* end if */
+ FUNC_ENTER_STATIC
+
+ /* Sanity check */
+ HDassert(image);
+ HDassert(len >= H5F_DRVINFOBLOCK_HDR_SIZE);
+ HDassert(udata);
+ HDassert(udata->f);
+
+ /* Allocate space for the driver info */
+ if(NULL == (drvinfo = (H5O_drvinfo_t *)H5MM_calloc(sizeof(H5O_drvinfo_t))))
+ HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, NULL, "memory allocation failed for driver info message")
+
+ /* Version number */
+ drv_vers = *image++;
+ if(drv_vers != HDF5_DRIVERINFO_VERSION_0)
+ HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad driver information block version number")
+
+ image += 3; /* reserved bytes */
+
+ /* Driver info size */
+ UINT32DECODE(image, drvinfo->len);
+
+ /* Driver name and/or version */
+ HDstrncpy(drv_name, (const char *)image, (size_t)8);
+ 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;
+
+ 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")
+ }
- /* Reset the dirty flag. */
- sblock->cache_info.is_dirty = FALSE;
+ } /* 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 */
- if(destroy)
- if(H5F_sblock_dest(f, sblock) < 0)
- HGOTO_ERROR(H5E_FSPACE, H5E_CLOSEERROR, FAIL, "can't close superblock")
+ /* Sanity check */
+ HDassert((size_t)(image - (const uint8_t *)_image) <= len);
+
+ /* Set return value */
+ ret_value = drvinfo;
done:
+ /* Release the [possibly partially initialized] driver info message on error */
+ if(!ret_value && drvinfo)
+ H5MM_xfree(drvinfo);
+
FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5F_sblock_flush() */
+} /* end H5F__cache_drvrinfo_deserialize() */
/*-------------------------------------------------------------------------
- * Function: H5F_sblock_dest
+ * Function: H5F__cache_drvrinfo_image_len
*
- * Purpose: Frees memory used by the superblock.
+ * Purpose: Compute the size of the data structure on disk.
*
* Return: Non-negative on success/Negative on failure
*
- * Programmer: Mike McGreevy
- * April 8, 2009
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * July 20, 2013
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5F_sblock_dest(H5F_t H5_ATTR_UNUSED *f, H5F_super_t* sblock)
+H5F__cache_drvrinfo_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)
{
- herr_t ret_value = SUCCEED; /* Return value */
+ const H5O_drvinfo_t *drvinfo = (const H5O_drvinfo_t *)_thing; /* Pointer to the object */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC_NOERR
- /* Sanity check */
- HDassert(sblock);
+ /* Check arguments */
+ HDassert(drvinfo);
+ HDassert(drvinfo->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+ HDassert(drvinfo->cache_info.type == H5AC_DRVRINFO);
+ HDassert(image_len);
+ HDassert(compressed_ptr);
- /* Free superblock */
- if(H5F__super_free(sblock) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "unable to destroy superblock")
+ /* 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 */
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5F_sblock_dest() */
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5F__cache_drvrinfo_image_len() */
/*-------------------------------------------------------------------------
- * Function: H5F_sblock_clear
+ * Function: H5F__cache_drvrinfo_serialize
*
- * Purpose: Mark the superblock as no longer being dirty.
+ * Purpose: Flushes a dirty object to disk.
*
- * Return: Non-negative on success/Negative on failure
+ * Return: Non-negative on success/Negative on failure
*
- * Programmer: Mike McGreevy
- * April 8, 2009
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * July 20 2013
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5F_sblock_clear(H5F_t *f, H5F_super_t *sblock, hbool_t destroy)
+H5F__cache_drvrinfo_serialize(const H5F_t *f, void *_image, size_t len,
+ void *_thing)
{
- herr_t ret_value = SUCCEED; /* Return value */
+ H5O_drvinfo_t *drvinfo = (H5O_drvinfo_t *)_thing; /* Pointer to the object */
+ uint8_t *image = (uint8_t *)_image; /* Pointer into raw data buffer */
+ uint8_t *dbuf; /* Pointer to beginning of driver info */
+ herr_t ret_value = SUCCEED; /* Return value */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC
- /*
- * Check arguments.
- */
- HDassert(sblock);
+ /* check arguments */
+ HDassert(f);
+ HDassert(image);
+ HDassert(drvinfo);
+ HDassert(drvinfo->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+ HDassert(drvinfo->cache_info.type == H5AC_DRVRINFO);
+ HDassert(len == (size_t)(H5F_DRVINFOBLOCK_HDR_SIZE + drvinfo->len));
+
+ /* Save pointer to beginning of driver info */
+ dbuf = image;
+
+ /* Encode the driver information block */
+ *image++ = HDF5_DRIVERINFO_VERSION_0; /* Version */
+ *image++ = 0; /* reserved */
+ *image++ = 0; /* reserved */
+ *image++ = 0; /* reserved */
+
+ /* Driver info size, excluding header */
+ UINT32ENCODE(image, drvinfo->len);
- /* Reset the dirty flag. */
- sblock->cache_info.is_dirty = FALSE;
+ /* Encode driver-specific data */
+ if(H5FD_sb_encode(f->shared->lf, (char *)image, dbuf + H5F_DRVINFOBLOCK_HDR_SIZE) < 0)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to encode driver information")
- if(destroy)
- if(H5F_sblock_dest(f, sblock) < 0)
- HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "unable to delete superblock")
+ /* Advance buffer pointer past name & variable-sized portion of driver info */
+ image += 8 + drvinfo->len;
+
+ /* Sanity check */
+ HDassert((size_t)(image - (uint8_t *)_image) == len);
done:
FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5F_sblock_clear() */
+} /* H5F__cache_drvrinfo_serialize() */
/*-------------------------------------------------------------------------
- * Function: H5F_sblock_size
+ * Function: H5F__cache_drvrinfo_free_icr
*
- * Purpose: Returns the size of the superblock encoded on disk.
+ * Purpose: Destroy/release an "in core representation" of a data
+ * structure
*
- * Return: Non-negative on success/Negative on failure
+ * Note: The metadata cache sets the object's cache_info.magic to
+ * H5C__H5C_CACHE_ENTRY_T_BAD_MAGIC before calling a free_icr
+ * callback (checked in assert).
*
- * Programmer: Mike McGreevy
- * April 8, 2009
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * July 20, 2013
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5F_sblock_size(const H5F_t *f, const H5F_super_t *sblock, size_t *size_ptr)
+H5F__cache_drvrinfo_free_icr(void *_thing)
{
- FUNC_ENTER_NOAPI_NOINIT_NOERR
+ H5O_drvinfo_t *drvinfo = (H5O_drvinfo_t *)_thing; /* Pointer to the object */
- /* check arguments */
- HDassert(f);
- HDassert(sblock);
- HDassert(size_ptr);
+ FUNC_ENTER_STATIC_NOERR
+
+ /* Check arguments */
+ HDassert(drvinfo);
+ HDassert(drvinfo->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_BAD_MAGIC);
+ HDassert(drvinfo->cache_info.type == H5AC_DRVRINFO);
- /* Set size value */
- *size_ptr = (size_t)H5F_SUPERBLOCK_SIZE(sblock->super_vers, f);
+ /* Destroy driver info message */
+ H5MM_xfree(drvinfo);
FUNC_LEAVE_NOAPI(SUCCEED)
-} /* end H5F_sblock_size() */
+} /* H5F__cache_drvrinfo_free_icr() */