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-rw-r--r--src/H5SMcache.c781
1 files changed, 377 insertions, 404 deletions
diff --git a/src/H5SMcache.c b/src/H5SMcache.c
index eaeb889..d8c0824 100644
--- a/src/H5SMcache.c
+++ b/src/H5SMcache.c
@@ -47,12 +47,6 @@
/* Local Macros */
/****************/
-/* Size of stack buffer for serialized tables */
-#define H5SM_TBL_BUF_SIZE 1024
-
-/* Size of stack buffer for serialized list indices */
-#define H5SM_LST_BUF_SIZE 1024
-
/******************/
/* Local Typedefs */
@@ -64,16 +58,23 @@
/********************/
/* Metadata cache (H5AC) callbacks */
-static H5SM_master_table_t *H5SM_table_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *udata);
-static herr_t H5SM_table_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t addr, H5SM_master_table_t *table);
-static herr_t H5SM_table_dest(H5F_t *f, H5SM_master_table_t* table);
-static herr_t H5SM_table_clear(H5F_t *f, H5SM_master_table_t *table, hbool_t destroy);
-static herr_t H5SM_table_size(const H5F_t *f, const H5SM_master_table_t *table, size_t *size_ptr);
-static H5SM_list_t *H5SM_list_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *udata);
-static herr_t H5SM_list_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t addr, H5SM_list_t *list);
-static herr_t H5SM_list_dest(H5F_t *f, H5SM_list_t* list);
-static herr_t H5SM_list_clear(H5F_t *f, H5SM_list_t *list, hbool_t destroy);
-static herr_t H5SM_list_size(const H5F_t *f, const H5SM_list_t H5_ATTR_UNUSED *list, size_t *size_ptr);
+static herr_t H5SM__cache_table_get_load_size(const void *udata, size_t *image_len);
+static void *H5SM__cache_table_deserialize(const void *image, size_t len,
+ void *udata, hbool_t *dirty);
+static herr_t H5SM__cache_table_image_len(const void *thing, size_t *image_len,
+ hbool_t *compressed_ptr, size_t *compressed_image_len_ptr);
+static herr_t H5SM__cache_table_serialize(const H5F_t *f, void *image,
+ size_t len, void *thing);
+static herr_t H5SM__cache_table_free_icr(void *thing);
+
+static herr_t H5SM__cache_list_get_load_size(const void *udata, size_t *image_len);
+static void *H5SM__cache_list_deserialize(const void *image, size_t len,
+ void *udata, hbool_t *dirty);
+static herr_t H5SM__cache_list_image_len(const void *thing, size_t *image_len,
+ hbool_t *compressed_ptr, size_t *compressed_image_len_ptr);
+static herr_t H5SM__cache_list_serialize(const H5F_t *f, void *image,
+ size_t len, void *thing);
+static herr_t H5SM__cache_list_free_icr(void *thing);
/*********************/
@@ -82,23 +83,35 @@ static herr_t H5SM_list_size(const H5F_t *f, const H5SM_list_t H5_ATTR_UNUSED *l
/* H5SM inherits cache-like properties from H5AC */
const H5AC_class_t H5AC_SOHM_TABLE[1] = {{
- H5AC_SOHM_TABLE_ID,
- (H5AC_load_func_t)H5SM_table_load,
- (H5AC_flush_func_t)H5SM_table_flush,
- (H5AC_dest_func_t)H5SM_table_dest,
- (H5AC_clear_func_t)H5SM_table_clear,
- (H5AC_notify_func_t)NULL,
- (H5AC_size_func_t)H5SM_table_size,
+ H5AC_SOHM_TABLE_ID, /* Metadata client ID */
+ "shared message table", /* Metadata client name (for debugging) */
+ H5FD_MEM_SOHM_TABLE, /* File space memory type for client */
+ H5AC__CLASS_NO_FLAGS_SET, /* Client class behavior flags */
+ H5SM__cache_table_get_load_size, /* 'get_load_size' callback */
+ H5SM__cache_table_deserialize, /* 'deserialize' callback */
+ H5SM__cache_table_image_len, /* 'image_len' callback */
+ NULL, /* 'pre_serialize' callback */
+ H5SM__cache_table_serialize, /* 'serialize' callback */
+ NULL, /* 'notify' callback */
+ H5SM__cache_table_free_icr, /* 'free_icr' callback */
+ NULL, /* 'clear' callback */
+ NULL, /* 'fsf_size' callback */
}};
const H5AC_class_t H5AC_SOHM_LIST[1] = {{
- H5AC_SOHM_LIST_ID,
- (H5AC_load_func_t)H5SM_list_load,
- (H5AC_flush_func_t)H5SM_list_flush,
- (H5AC_dest_func_t)H5SM_list_dest,
- (H5AC_clear_func_t)H5SM_list_clear,
- (H5AC_notify_func_t)NULL,
- (H5AC_size_func_t)H5SM_list_size,
+ H5AC_SOHM_LIST_ID, /* Metadata client ID */
+ "shared message list", /* Metadata client name (for debugging) */
+ H5FD_MEM_SOHM_TABLE, /* File space memory type for client */
+ H5AC__CLASS_NO_FLAGS_SET, /* Client class behavior flags */
+ H5SM__cache_list_get_load_size, /* 'get_load_size' callback */
+ H5SM__cache_list_deserialize, /* 'deserialize' callback */
+ H5SM__cache_list_image_len, /* 'image_len' callback */
+ NULL, /* 'pre_serialize' callback */
+ H5SM__cache_list_serialize, /* 'serialize' callback */
+ NULL, /* 'notify' callback */
+ H5SM__cache_list_free_icr, /* 'free_icr' callback */
+ NULL, /* 'clear' callback */
+ NULL, /* 'fsf_size' callback */
}};
@@ -114,32 +127,76 @@ const H5AC_class_t H5AC_SOHM_LIST[1] = {{
/*-------------------------------------------------------------------------
- * Function: H5SM_table_load
+ * Function: H5SM__cache_table_get_load_size()
+ *
+ * Purpose: Return the size of the master table of Shared Object Header
+ * Message indexes on disk. As this cache client doesn't use
+ * speculative reads, this value should be accurate.
+ *
+ * Return: Success: SUCCEED
+ * Failure: FAIL
+ *
+ * Programmer: John Mainzer
+ * 7/28/14
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5SM__cache_table_get_load_size(const void *_udata, size_t *image_len)
+{
+ const H5SM_table_cache_ud_t *udata = (const H5SM_table_cache_ud_t *)_udata; /* User data for callback */
+
+ FUNC_ENTER_STATIC_NOERR
+
+ /* Check arguments */
+ HDassert(udata);
+ HDassert(udata->f);
+ HDassert(image_len);
+
+ *image_len = H5SM_TABLE_SIZE(udata->f);
+
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5SM__cache_table_get_load_size() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5SM__cache_table_deserialize
*
- * Purpose: Loads the master table of Shared Object Header Message
- * indexes.
+ * Purpose: Given a buffer containing the on disk representation of the
+ * master table of Shared Object Header Message indexes, deserialize
+ * the table, copy the contents into a newly allocated instance of
+ * H5SM_master_table_t, and return a pointer to the new instance.
*
- * Return: Non-negative on success/Negative on failure
+ * Return: Success: Pointer to in core representation
+ * Failure: NULL
*
- * Programmer: James Laird
- * November 6, 2006
+ * Programmer: John Mainzer
+ * 7/28/14
*
*-------------------------------------------------------------------------
*/
-static H5SM_master_table_t *
-H5SM_table_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void H5_ATTR_UNUSED *udata)
+static void *
+H5SM__cache_table_deserialize(const void *_image, size_t len, void *_udata,
+ hbool_t H5_ATTR_UNUSED *dirty)
{
- H5SM_master_table_t *table = NULL;
- H5WB_t *wb = NULL; /* Wrapped buffer for table data */
- uint8_t tbl_buf[H5SM_TBL_BUF_SIZE]; /* Buffer for table */
- uint8_t *buf; /* Reading buffer */
- const uint8_t *p; /* Pointer into input buffer */
- uint32_t stored_chksum; /* Stored metadata checksum value */
- uint32_t computed_chksum; /* Computed metadata checksum value */
- size_t u; /* Counter variable for index headers */
- H5SM_master_table_t *ret_value;
-
- FUNC_ENTER_NOAPI_NOINIT
+ H5F_t *f; /* File pointer -- from user data */
+ H5SM_master_table_t *table = NULL; /* Shared message table that we deserializing */
+ H5SM_table_cache_ud_t *udata = (H5SM_table_cache_ud_t *)_udata; /* Pointer to user data */
+ const uint8_t *image = (const uint8_t *)_image; /* Pointer into input buffer */
+ uint32_t stored_chksum; /* Stored metadata checksum value */
+ uint32_t computed_chksum; /* Computed metadata checksum value */
+ size_t u; /* Counter variable for index headers */
+ void * ret_value; /* Return value */
+
+ FUNC_ENTER_STATIC
+
+ /* Check arguments */
+ HDassert(image);
+ HDassert(len > 0);
+ HDassert(udata);
+ HDassert(udata->f);
+ f = udata->f;
+ HDassert(dirty);
/* Verify that we're reading version 0 of the table; this is the only
* version defined so far.
@@ -152,35 +209,18 @@ H5SM_table_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void H5_ATTR_UNUSED *udat
/* Read number of indexes and version from file superblock */
table->num_indexes = H5F_SOHM_NINDEXES(f);
-
- HDassert(addr == H5F_SOHM_ADDR(f));
- HDassert(addr != HADDR_UNDEF);
HDassert(table->num_indexes > 0);
- /* Wrap the local buffer for serialized table info */
- if(NULL == (wb = H5WB_wrap(tbl_buf, sizeof(tbl_buf))))
- HGOTO_ERROR(H5E_SOHM, H5E_CANTINIT, NULL, "can't wrap buffer")
-
/* Compute the size of the SOHM table header on disk. This is the "table"
* itself plus each index within the table
*/
table->table_size = H5SM_TABLE_SIZE(f);
-
- /* Get a pointer to a buffer that's large enough for serialized table */
- if(NULL == (buf = (uint8_t *)H5WB_actual(wb, table->table_size)))
- HGOTO_ERROR(H5E_SOHM, H5E_NOSPACE, NULL, "can't get actual buffer")
-
- /* Read header from disk */
- if(H5F_block_read(f, H5FD_MEM_SOHM_TABLE, addr, table->table_size, dxpl_id, buf) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_READERROR, NULL, "can't read SOHM table")
-
- /* Get temporary pointer to serialized table */
- p = buf;
+ HDassert(table->table_size == len);
/* Check magic number */
- if(HDmemcmp(p, H5SM_TABLE_MAGIC, (size_t)H5_SIZEOF_MAGIC))
- HGOTO_ERROR(H5E_SOHM, H5E_CANTLOAD, NULL, "bad SOHM table signature")
- p += H5_SIZEOF_MAGIC;
+ if(HDmemcmp(image, H5SM_TABLE_MAGIC, (size_t)H5_SIZEOF_MAGIC))
+ HGOTO_ERROR(H5E_SOHM, H5E_CANTLOAD, NULL, "bad SOHM table signature")
+ image += H5_SIZEOF_MAGIC;
/* Allocate space for the index headers in memory*/
if(NULL == (table->indexes = (H5SM_index_header_t *)H5FL_ARR_MALLOC(H5SM_index_header_t, (size_t)table->num_indexes)))
@@ -189,45 +229,45 @@ H5SM_table_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void H5_ATTR_UNUSED *udat
/* Read in the index headers */
for(u = 0; u < table->num_indexes; ++u) {
/* Verify correct version of index list */
- if(H5SM_LIST_VERSION != *p++)
+ if(H5SM_LIST_VERSION != *image++)
HGOTO_ERROR(H5E_SOHM, H5E_VERSION, NULL, "bad shared message list version number")
/* Type of the index (list or B-tree) */
- table->indexes[u].index_type= (H5SM_index_type_t)*p++;
+ table->indexes[u].index_type= (H5SM_index_type_t)*image++;
/* Type of messages in the index */
- UINT16DECODE(p, table->indexes[u].mesg_types);
+ UINT16DECODE(image, table->indexes[u].mesg_types);
/* Minimum size of message to share */
- UINT32DECODE(p, table->indexes[u].min_mesg_size);
+ UINT32DECODE(image, table->indexes[u].min_mesg_size);
/* List cutoff; fewer than this number and index becomes a list */
- UINT16DECODE(p, table->indexes[u].list_max);
+ UINT16DECODE(image, table->indexes[u].list_max);
/* B-tree cutoff; more than this number and index becomes a B-tree */
- UINT16DECODE(p, table->indexes[u].btree_min);
+ UINT16DECODE(image, table->indexes[u].btree_min);
/* Number of messages shared */
- UINT16DECODE(p, table->indexes[u].num_messages);
+ UINT16DECODE(image, table->indexes[u].num_messages);
/* Address of the actual index */
- H5F_addr_decode(f, &p, &(table->indexes[u].index_addr));
+ H5F_addr_decode(f, &image, &(table->indexes[u].index_addr));
/* Address of the index's heap */
- H5F_addr_decode(f, &p, &(table->indexes[u].heap_addr));
+ H5F_addr_decode(f, &image, &(table->indexes[u].heap_addr));
/* Compute the size of a list index for this SOHM index */
table->indexes[u].list_size = H5SM_LIST_SIZE(f, table->indexes[u].list_max);
} /* end for */
/* Read in checksum */
- UINT32DECODE(p, stored_chksum);
+ UINT32DECODE(image, stored_chksum);
/* Sanity check */
- HDassert((size_t)(p - (const uint8_t *)buf) == table->table_size);
+ HDassert((size_t)(image - (const uint8_t *)_image) == table->table_size);
/* Compute checksum on entire header */
- computed_chksum = H5_checksum_metadata(buf, (table->table_size - H5SM_SIZEOF_CHECKSUM), 0);
+ computed_chksum = H5_checksum_metadata(_image, (table->table_size - H5SM_SIZEOF_CHECKSUM), 0);
/* Verify checksum */
if(stored_chksum != computed_chksum)
@@ -237,147 +277,169 @@ H5SM_table_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void H5_ATTR_UNUSED *udat
ret_value = table;
done:
- /* Release resources */
- if(wb && H5WB_unwrap(wb) < 0)
- HDONE_ERROR(H5E_SOHM, H5E_CLOSEERROR, NULL, "can't close wrapped buffer")
if(!ret_value && table)
if(H5SM_table_free(table) < 0)
HDONE_ERROR(H5E_SOHM, H5E_CANTFREE, NULL, "unable to destroy sohm table")
FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5SM_table_load() */
+} /* end H5SM__cache_table_deserialize() */
/*-------------------------------------------------------------------------
- * Function: H5SM_table_flush
+ * Function: H5SM__cache_table_image_len
*
- * Purpose: Flushes (and destroys) the table of Shared Object Header
- * Message indexes.
+ * Purpose: Compute the size in bytes of the specified instance of
+ * H5SM_master_table_t on disk, and return it in *image_len.
+ * On failure, the value of *image_len is undefined.
*
- * Return: Non-negative on success/Negative on failure
+ * Return: Success: SUCCEED
+ * Failure: FAIL
*
- * Programmer: James Laird
- * November 6, 2006
+ * Programmer: John Mainzer
+ * 7/28/14
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5SM_table_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t addr, H5SM_master_table_t *table)
+H5SM__cache_table_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)
{
- H5WB_t *wb = NULL; /* Wrapped buffer for table data */
- uint8_t tbl_buf[H5SM_TBL_BUF_SIZE]; /* Buffer for table */
- herr_t ret_value = SUCCEED; /* Return value */
+ const H5SM_master_table_t *table = (const H5SM_master_table_t *)_thing; /* Shared message table to query */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC_NOERR
- /* check arguments */
- HDassert(f);
- HDassert(H5F_addr_defined(addr));
+ /* Check arguments */
HDassert(table);
+ HDassert(table->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+ HDassert(table->cache_info.type == H5AC_SOHM_TABLE);
+ HDassert(image_len);
- if(table->cache_info.is_dirty) {
- uint8_t *buf; /* Temporary buffer */
- uint8_t *p; /* Pointer into raw data buffer */
- uint32_t computed_chksum; /* Computed metadata checksum value */
- size_t u; /* Counter variable */
+ *image_len = table->table_size;
- /* Verify that we're writing version 0 of the table; this is the only
- * version defined so far.
- */
- HDassert(H5F_SOHM_VERS(f) == HDF5_SHAREDHEADER_VERSION);
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5SM__cache_table_image_len() */
- /* Wrap the local buffer for serialized header info */
- if(NULL == (wb = H5WB_wrap(tbl_buf, sizeof(tbl_buf))))
- HGOTO_ERROR(H5E_SOHM, H5E_CANTINIT, FAIL, "can't wrap buffer")
+/***************************************/
+/* no H5SM_cache_table_pre_serialize() */
+/***************************************/
- /* Get a pointer to a buffer that's large enough for serialized table */
- if(NULL == (buf = (uint8_t *)H5WB_actual(wb, table->table_size)))
- HGOTO_ERROR(H5E_SOHM, H5E_NOSPACE, FAIL, "can't get actual buffer")
+
+/*-------------------------------------------------------------------------
+ * Function: H5SM__cache_table_serialize
+ *
+ * Purpose: Serialize the contents of the supplied shared message table, and
+ * load this data into the supplied buffer.
+ *
+ * Return: Success: SUCCEED
+ * Failure: FAIL
+ *
+ * Programmer: John Mainzer
+ * 7/28/14
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5SM__cache_table_serialize(const H5F_t *f, void *_image, size_t len,
+ void *_thing)
+{
+ H5SM_master_table_t *table = (H5SM_master_table_t *)_thing; /* Shared message table to encode */
+ uint8_t *image = (uint8_t *)_image; /* Pointer into raw data buffer */
+ uint32_t computed_chksum; /* Computed metadata checksum value */
+ size_t u; /* Counter variable */
- /* Get temporary pointer to buffer for serialized table */
- p = buf;
+ FUNC_ENTER_STATIC_NOERR
- /* Encode magic number */
- HDmemcpy(p, H5SM_TABLE_MAGIC, (size_t)H5_SIZEOF_MAGIC);
- p += H5_SIZEOF_MAGIC;
+ /* Check arguments */
+ HDassert(f);
+ HDassert(image);
+ HDassert(table);
+ HDassert(table->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+ HDassert(table->cache_info.type == H5AC_SOHM_TABLE);
+ HDassert(table->table_size == len);
- /* Encode each index header */
- for(u = 0; u < table->num_indexes; ++u) {
- /* Version for this list */
- *p++ = H5SM_LIST_VERSION;
+ /* Verify that we're writing version 0 of the table; this is the only
+ * version defined so far.
+ */
+ HDassert(H5F_SOHM_VERS(f) == HDF5_SHAREDHEADER_VERSION);
- /* Is message index a list or a B-tree? */
- *p++ = table->indexes[u].index_type;
+ /* Encode magic number */
+ HDmemcpy(image, H5SM_TABLE_MAGIC, (size_t)H5_SIZEOF_MAGIC);
+ image += H5_SIZEOF_MAGIC;
- /* Type of messages in the index */
- UINT16ENCODE(p, table->indexes[u].mesg_types);
+ /* Encode each index header */
+ for(u = 0; u < table->num_indexes; ++u) {
+ /* Version for this list */
+ *image++ = H5SM_LIST_VERSION;
- /* Minimum size of message to share */
- UINT32ENCODE(p, table->indexes[u].min_mesg_size);
+ /* Is message index a list or a B-tree? */
+ *image++ = table->indexes[u].index_type;
- /* List cutoff; fewer than this number and index becomes a list */
- UINT16ENCODE(p, table->indexes[u].list_max);
+ /* Type of messages in the index */
+ UINT16ENCODE(image, table->indexes[u].mesg_types);
- /* B-tree cutoff; more than this number and index becomes a B-tree */
- UINT16ENCODE(p, table->indexes[u].btree_min);
+ /* Minimum size of message to share */
+ UINT32ENCODE(image, table->indexes[u].min_mesg_size);
- /* Number of messages shared */
- UINT16ENCODE(p, table->indexes[u].num_messages);
+ /* List cutoff; fewer than this number and index becomes a list */
+ UINT16ENCODE(image, table->indexes[u].list_max);
- /* Address of the actual index */
- H5F_addr_encode(f, &p, table->indexes[u].index_addr);
+ /* B-tree cutoff; more than this number and index becomes a B-tree */
+ UINT16ENCODE(image, table->indexes[u].btree_min);
- /* Address of the index's heap */
- H5F_addr_encode(f, &p, table->indexes[u].heap_addr);
- } /* end for */
+ /* Number of messages shared */
+ UINT16ENCODE(image, table->indexes[u].num_messages);
- /* Compute checksum on buffer */
- computed_chksum = H5_checksum_metadata(buf, (table->table_size - H5SM_SIZEOF_CHECKSUM), 0);
- UINT32ENCODE(p, computed_chksum);
+ /* Address of the actual index */
+ H5F_addr_encode(f, &image, table->indexes[u].index_addr);
- /* Write the table to disk */
- HDassert((size_t)(p - buf) == table->table_size);
- if(H5F_block_write(f, H5FD_MEM_SOHM_TABLE, addr, table->table_size, dxpl_id, buf) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_CANTFLUSH, FAIL, "unable to save sohm table to disk")
+ /* Address of the index's heap */
+ H5F_addr_encode(f, &image, table->indexes[u].heap_addr);
+ } /* end for */
- table->cache_info.is_dirty = FALSE;
- } /* end if */
+ /* Compute checksum on buffer */
+ computed_chksum = H5_checksum_metadata(_image, (table->table_size - H5SM_SIZEOF_CHECKSUM), 0);
+ UINT32ENCODE(image, computed_chksum);
- if(destroy)
- if(H5SM_table_dest(f, table) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_CANTFREE, FAIL, "unable to destroy sohm table")
+ /* sanity check */
+ HDassert((size_t)(image - ((uint8_t *)_image)) == table->table_size);
-done:
- /* Release resources */
- if(wb && H5WB_unwrap(wb) < 0)
- HDONE_ERROR(H5E_SOHM, H5E_CLOSEERROR, FAIL, "can't close wrapped buffer")
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5SM__cache_table_serialize() */
- FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5SM_table_flush() */
+/*****************************************/
+/* no H5SM_cache_table_notify() function */
+/*****************************************/
/*-------------------------------------------------------------------------
- * Function: H5SM_table_dest
+ * Function: H5SM__cache_table_free_icr
*
- * Purpose: Frees memory used by the SOHM table.
+ * Purpose: Free memory used by the SOHM table.
*
- * 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: James Laird
- * November 6, 2006
+ * Return: Success: SUCCEED
+ * Failure: FAIL
+ *
+ * Programmer: John Mainzer
+ * 7/28/14
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5SM_table_dest(H5F_t H5_ATTR_UNUSED *f, H5SM_master_table_t* table)
+H5SM__cache_table_free_icr(void *_thing)
{
- herr_t ret_value = SUCCEED; /* Return value */
+ H5SM_master_table_t *table = (H5SM_master_table_t *)_thing; /* Shared message table to release */
+ herr_t ret_value = SUCCEED; /* Return value */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC
/* Check arguments */
HDassert(table);
- HDassert(table->indexes);
+ HDassert(table->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_BAD_MAGIC);
+ HDassert(table->cache_info.type == H5AC_SOHM_TABLE);
/* Destroy Shared Object Header Message table */
if(H5SM_table_free(table) < 0)
@@ -385,105 +447,80 @@ H5SM_table_dest(H5F_t H5_ATTR_UNUSED *f, H5SM_master_table_t* table)
done:
FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5SM_table_dest() */
+} /* end H5SM_cache_table_free_icr() */
/*-------------------------------------------------------------------------
- * Function: H5SM_table_clear
+ * Function: H5SM__cache_list_get_load_size()
*
- * Purpose: Mark this table as no longer being dirty.
+ * Purpose: Return the on disk size of list of SOHM messages. In this case,
+ * we simply look up the size in the user data, and return that value
+ * in *image_len.
*
- * Return: Non-negative on success/Negative on failure
+ * Return: Success: SUCCEED
+ * Failure: FAIL
*
- * Programmer: James Laird
- * November 6, 2006
+ * Programmer: John Mainzer
+ * 7/28/14
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5SM_table_clear(H5F_t *f, H5SM_master_table_t *table, hbool_t destroy)
+H5SM__cache_list_get_load_size(const void *_udata, size_t *image_len)
{
- herr_t ret_value = SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI_NOINIT
-
- /*
- * Check arguments.
- */
- HDassert(table);
-
- /* Reset the dirty flag. */
- table->cache_info.is_dirty = FALSE;
-
- if(destroy)
- if(H5SM_table_dest(f, table) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_CANTFREE, FAIL, "unable to delete SOHM master table")
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5SM_table_clear() */
+ const H5SM_list_cache_ud_t *udata = (const H5SM_list_cache_ud_t *)_udata; /* User data for callback */
-
-/*-------------------------------------------------------------------------
- * Function: H5SM_table_size
- *
- * Purpose: Returns the size of the table encoded on disk.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: James Laird
- * November 6, 2006
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5SM_table_size(const H5F_t H5_ATTR_UNUSED *f, const H5SM_master_table_t *table, size_t *size_ptr)
-{
- FUNC_ENTER_NOAPI_NOINIT_NOERR
+ FUNC_ENTER_STATIC_NOERR
/* Check arguments */
- HDassert(f);
- HDassert(table);
- HDassert(size_ptr);
+ HDassert(udata);
+ HDassert(udata->header);
+ HDassert(udata->header->list_size > 0);
+ HDassert(image_len);
- /* Set size value */
- *size_ptr = table->table_size;
+ *image_len = udata->header->list_size;
FUNC_LEAVE_NOAPI(SUCCEED)
-} /* end H5SM_table_size() */
+} /* end H5SM__cache_list_get_load_size() */
/*-------------------------------------------------------------------------
- * Function: H5SM_list_load
+ * Function: H5SM__cache_list_deserialize
*
- * Purpose: Loads a list of SOHM messages.
+ * Purpose: Given a buffer containing the on disk image of a list of
+ * SOHM message, deserialize the list, load it into a newly allocated
+ * instance of H5SM_list_t, and return a pointer to same.
*
- * Return: Non-negative on success/Negative on failure
+ * Return: Success: Pointer to in core representation
+ * Failure: NULL
*
- * Programmer: James Laird
- * November 6, 2006
+ * Programmer: John Mainzer
+ * 7/28/14
*
*-------------------------------------------------------------------------
*/
-static H5SM_list_t *
-H5SM_list_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *_udata)
+static void *
+H5SM__cache_list_deserialize(const void *_image, size_t len, void *_udata,
+ hbool_t H5_ATTR_UNUSED *dirty)
{
- H5SM_list_t *list; /* The SOHM list being read in */
- H5SM_list_cache_ud_t *udata = (H5SM_list_cache_ud_t *)_udata; /* User data for callback */
- H5SM_bt2_ctx_t ctx; /* Message encoding context */
- H5WB_t *wb = NULL; /* Wrapped buffer for list index data */
- uint8_t lst_buf[H5SM_LST_BUF_SIZE]; /* Buffer for list index */
- uint8_t *buf; /* Reading buffer */
- uint8_t *p; /* Pointer into input buffer */
- uint32_t stored_chksum; /* Stored metadata checksum value */
- uint32_t computed_chksum; /* Computed metadata checksum value */
- size_t u; /* Counter variable for messages in list */
- H5SM_list_t *ret_value; /* Return value */
+ H5SM_list_t *list = NULL; /* The SOHM list being read in */
+ H5SM_list_cache_ud_t *udata = (H5SM_list_cache_ud_t *)_udata; /* User data for callback */
+ H5SM_bt2_ctx_t ctx; /* Message encoding context */
+ const uint8_t *image = (const uint8_t *)_image; /* Pointer into input buffer */
+ uint32_t stored_chksum; /* Stored metadata checksum value */
+ uint32_t computed_chksum; /* Computed metadata checksum value */
+ size_t u; /* Counter variable for messages in list */
+ void * ret_value; /* Return value */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC
/* Check arguments */
+ HDassert(image);
+ HDassert(len > 0);
+ HDassert(udata);
HDassert(udata->header);
+ HDassert(udata->header->list_size == len);
+ HDassert(dirty);
/* Allocate space for the SOHM list data structure */
if(NULL == (list = H5FL_MALLOC(H5SM_list_t)))
@@ -495,42 +532,28 @@ H5SM_list_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *_udata)
HGOTO_ERROR(H5E_SOHM, H5E_NOSPACE, NULL, "file allocation failed for SOHM list")
list->header = udata->header;
- /* Wrap the local buffer for serialized list index info */
- if(NULL == (wb = H5WB_wrap(lst_buf, sizeof(lst_buf))))
- HGOTO_ERROR(H5E_SOHM, H5E_CANTINIT, NULL, "can't wrap buffer")
-
- /* Get a pointer to a buffer that's large enough for serialized list index */
- if(NULL == (buf = (uint8_t *)H5WB_actual(wb, udata->header->list_size)))
- HGOTO_ERROR(H5E_SOHM, H5E_NOSPACE, NULL, "can't get actual buffer")
-
- /* Read list from disk */
- if(H5F_block_read(f, H5FD_MEM_SOHM_INDEX, addr, udata->header->list_size, dxpl_id, buf) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_READERROR, NULL, "can't read SOHM list")
-
- /* Get temporary pointer to serialized list index */
- p = buf;
-
/* Check magic number */
- if(HDmemcmp(p, H5SM_LIST_MAGIC, (size_t)H5_SIZEOF_MAGIC))
+ if(HDmemcmp(image, H5SM_LIST_MAGIC, (size_t)H5_SIZEOF_MAGIC))
HGOTO_ERROR(H5E_SOHM, H5E_CANTLOAD, NULL, "bad SOHM list signature")
- p += H5_SIZEOF_MAGIC;
+ image += H5_SIZEOF_MAGIC;
/* Read messages into the list array */
ctx.sizeof_addr = H5F_SIZEOF_ADDR(udata->f);
for(u = 0; u < udata->header->num_messages; u++) {
- if(H5SM_message_decode(p, &(list->messages[u]), &ctx) < 0)
+ if(H5SM_message_decode(image, &(list->messages[u]), &ctx) < 0)
HGOTO_ERROR(H5E_SOHM, H5E_CANTLOAD, NULL, "can't decode shared message")
- p += H5SM_SOHM_ENTRY_SIZE(udata->f);
+
+ image += H5SM_SOHM_ENTRY_SIZE(udata->f);
} /* end for */
/* Read in checksum */
- UINT32DECODE(p, stored_chksum);
+ UINT32DECODE(image, stored_chksum);
/* Sanity check */
- HDassert((size_t)(p - buf) <= udata->header->list_size);
+ HDassert((size_t)(image - (const uint8_t *)_image) <= udata->header->list_size);
/* Compute checksum on entire header */
- computed_chksum = H5_checksum_metadata(buf, ((size_t)(p - buf) - H5SM_SIZEOF_CHECKSUM), 0);
+ computed_chksum = H5_checksum_metadata(_image, ((size_t)(image - (const uint8_t *)_image) - H5SM_SIZEOF_CHECKSUM), 0);
/* Verify checksum */
if(stored_chksum != computed_chksum)
@@ -544,9 +567,6 @@ H5SM_list_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *_udata)
ret_value = list;
done:
- /* Release resources */
- if(wb && H5WB_unwrap(wb) < 0)
- HDONE_ERROR(H5E_SOHM, H5E_CLOSEERROR, NULL, "can't close wrapped buffer")
if(!ret_value && list) {
if(list->messages)
list->messages = H5FL_ARR_FREE(H5SM_sohm_t, list->messages);
@@ -554,205 +574,158 @@ done:
} /* end if */
FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5SM_list_load() */
+} /* end H5SM__cache_list_deserialize() */
/*-------------------------------------------------------------------------
- * Function: H5SM_list_flush
+ * Function: H5SM__cache_list_image_len
*
- * Purpose: Flush this list index.
+ * Purpose: Get the size of the shared message list on disk.
*
- * Return: Non-negative on success/Negative on failure
+ * Return: Success: SUCCEED
+ * Failure: FAIL
*
- * Programmer: James Laird
- * November 6, 2006
+ * Programmer: John Mainzer
+ * 7/28/14
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5SM_list_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t addr, H5SM_list_t *list)
+H5SM__cache_list_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)
{
- H5WB_t *wb = NULL; /* Wrapped buffer for list index data */
- uint8_t lst_buf[H5SM_LST_BUF_SIZE]; /* Buffer for list index */
- herr_t ret_value = SUCCEED; /* Return value */
+ const H5SM_list_t *list = (const H5SM_list_t *)_thing; /* Shared message list to query */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC_NOERR
- /* check arguments */
- HDassert(f);
- HDassert(H5F_addr_defined(addr));
+ /* Check arguments */
HDassert(list);
+ HDassert(list->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+ HDassert(list->cache_info.type == H5AC_SOHM_LIST);
HDassert(list->header);
+ HDassert(image_len);
- if(list->cache_info.is_dirty) {
- H5SM_bt2_ctx_t ctx; /* Message encoding context */
- uint8_t *buf; /* Temporary buffer */
- uint8_t *p; /* Pointer into raw data buffer */
- uint32_t computed_chksum; /* Computed metadata checksum value */
- size_t mesgs_written; /* Number of messages written to list */
- size_t u; /* Local index variable */
-
- /* Wrap the local buffer for serialized list index info */
- if(NULL == (wb = H5WB_wrap(lst_buf, sizeof(lst_buf))))
- HGOTO_ERROR(H5E_SOHM, H5E_CANTINIT, FAIL, "can't wrap buffer")
-
- /* Get a pointer to a buffer that's large enough for serialized list index */
- if(NULL == (buf = (uint8_t *)H5WB_actual(wb, list->header->list_size)))
- HGOTO_ERROR(H5E_SOHM, H5E_NOSPACE, FAIL, "can't get actual buffer")
-
- /* Get temporary pointer to buffer for serialized list index */
- p = buf;
-
- /* Encode magic number */
- HDmemcpy(p, H5SM_LIST_MAGIC, (size_t)H5_SIZEOF_MAGIC);
- p += H5_SIZEOF_MAGIC;
-
- /* Write messages from the messages array to disk */
- mesgs_written = 0;
- ctx.sizeof_addr = H5F_SIZEOF_ADDR(f);
- for(u = 0; u < list->header->list_max && mesgs_written < list->header->num_messages; u++) {
- if(list->messages[u].location != H5SM_NO_LOC) {
- if(H5SM_message_encode(p, &(list->messages[u]), &ctx) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_CANTFLUSH, FAIL, "unable to write shared message to disk")
-
- p += H5SM_SOHM_ENTRY_SIZE(f);
- ++mesgs_written;
- } /* end if */
- } /* end for */
- HDassert(mesgs_written == list->header->num_messages);
-
- /* Compute checksum on buffer */
- computed_chksum = H5_checksum_metadata(buf, (size_t)(p - buf), 0);
- UINT32ENCODE(p, computed_chksum);
-#ifdef H5_CLEAR_MEMORY
-HDmemset(p, 0, (list->header->list_size - (size_t)(p - buf)));
-#endif /* H5_CLEAR_MEMORY */
+ *image_len = list->header->list_size;
- /* Write the list to disk */
- HDassert((size_t)(p - buf) <= list->header->list_size);
- if(H5F_block_write(f, H5FD_MEM_SOHM_INDEX, addr, list->header->list_size, dxpl_id, buf) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_CANTFLUSH, FAIL, "unable to save sohm table to disk")
-
- list->cache_info.is_dirty = FALSE;
- } /* end if */
-
- if(destroy)
- if(H5SM_list_dest(f, list) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_CANTFREE, FAIL, "unable to destroy list")
-
-done:
- /* Release resources */
- if(wb && H5WB_unwrap(wb) < 0)
- HDONE_ERROR(H5E_SOHM, H5E_CLOSEERROR, FAIL, "can't close wrapped buffer")
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5SM__cache_list_image_len() */
- FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5SM_list_flush() */
+/**************************************/
+/* no H5SM_cache_list_pre_serialize() */
+/**************************************/
/*-------------------------------------------------------------------------
- * Function: H5SM_list_dest
+ * Function: H5SM__cache_list_serialize
*
- * Purpose: Frees all memory used by the list.
+ * Purpose: Serialize the contents of the supplied shared message list, and
+ * load this data into the supplied buffer.
*
- * Return: Non-negative on success/Negative on failure
+ * Return: Success: SUCCEED
+ * Failure: FAIL
*
- * Programmer: James Laird
- * November 6, 2006
+ * Programmer: John Mainzer
+ * 7/28/14
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5SM_list_dest(H5F_t *f, H5SM_list_t* list)
+H5SM__cache_list_serialize(const H5F_t *f, void *_image, size_t len,
+ void *_thing)
{
- herr_t ret_value = SUCCEED; /* Return value */
+ H5SM_list_t *list = (H5SM_list_t *)_thing ; /* Instance being serialized */
+ H5SM_bt2_ctx_t ctx; /* Message encoding context */
+ uint8_t *image = (uint8_t *)_image; /* Pointer into raw data buffer */
+ uint32_t computed_chksum; /* Computed metadata checksum value */
+ size_t mesgs_serialized; /* Number of messages serialized */
+ size_t u; /* Local index variable */
+ herr_t ret_value = SUCCEED; /* Return value */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC
- /* Sanity check */
+ /* Check arguments */
+ HDassert(f);
+ HDassert(image);
HDassert(list);
+ HDassert(list->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_MAGIC);
+ HDassert(list->cache_info.type == H5AC_SOHM_LIST);
HDassert(list->header);
- HDassert(list->messages);
+ HDassert(list->header->list_size == len);
+
+ /* Encode magic number */
+ HDmemcpy(image, H5SM_LIST_MAGIC, (size_t)H5_SIZEOF_MAGIC);
+ image += H5_SIZEOF_MAGIC;
+
+ /* serialize messages from the messages array */
+ mesgs_serialized = 0;
+ ctx.sizeof_addr = H5F_SIZEOF_ADDR(f);
+ for(u = 0; ((u < list->header->list_max) && (mesgs_serialized < list->header->num_messages)); u++) {
+ if(list->messages[u].location != H5SM_NO_LOC) {
+ if(H5SM_message_encode(image, &(list->messages[u]), &ctx) < 0)
+ HGOTO_ERROR(H5E_SOHM, H5E_CANTFLUSH, FAIL, "unable to serialize shared message")
+
+ image += H5SM_SOHM_ENTRY_SIZE(f);
+ ++mesgs_serialized;
+ } /* end if */
+ } /* end for */
- /* If we're going to free the space on disk, the address must be valid */
- HDassert(!list->cache_info.free_file_space_on_destroy || H5F_addr_defined(list->cache_info.addr));
+ HDassert(mesgs_serialized == list->header->num_messages);
- /* Check for freeing file space for shared message index list */
- if(list->cache_info.free_file_space_on_destroy) {
- /* Release the space on disk */
- /* (XXX: Nasty usage of internal DXPL value! -QAK) */
- if(H5MF_xfree(f, H5FD_MEM_SOHM_INDEX, H5AC_dxpl_id, list->cache_info.addr, (hsize_t)list->header->list_size) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_NOSPACE, FAIL, "unable to free shared message list")
- } /* end if */
+ /* Compute checksum on buffer */
+ computed_chksum = H5_checksum_metadata(_image, (size_t)(image - (uint8_t *)_image), 0);
+ UINT32ENCODE(image, computed_chksum);
- /* Destroy Shared Object Header Message list */
- if(H5SM_list_free(list) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_CANTRELEASE, FAIL, "unable to free shared message list")
+#ifdef H5_CLEAR_MEMORY
+ HDmemset(image, 0, (list->header->list_size - (size_t)(image - (uint8_t *)_image)));
+#endif /* H5_CLEAR_MEMORY */
+
+ /* sanity check */
+ HDassert((size_t)(image - (uint8_t *)_image) <= list->header->list_size);
done:
FUNC_LEAVE_NOAPI(ret_value)
-} /* end H5SM_list_dest() */
+} /* end H5SM__cache_list_serialize() */
+
+/****************************************/
+/* no H5SM_cache_list_notify() function */
+/****************************************/
/*-------------------------------------------------------------------------
- * Function: H5SM_list_clear
+ * Function: H5SM__cache_list_free_icr
*
- * Purpose: Marks a list as not dirty.
+ * Purpose: Free all memory used by the list.
*
- * 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: James Laird
- * November 6, 2006
+ * Return: Success: SUCCEED
+ * Failure: FAIL
+ *
+ * Programmer: John Mainzer
+ * 7/28/14
*
*-------------------------------------------------------------------------
*/
static herr_t
-H5SM_list_clear(H5F_t *f, H5SM_list_t *list, hbool_t destroy)
+H5SM__cache_list_free_icr(void *_thing)
{
- herr_t ret_value = SUCCEED; /* Return value */
+ H5SM_list_t *list = (H5SM_list_t *)_thing; /* Shared message list to release */
+ herr_t ret_value = SUCCEED; /* Return value */
- FUNC_ENTER_NOAPI_NOINIT
+ FUNC_ENTER_STATIC
/* Check arguments */
HDassert(list);
+ HDassert(list->cache_info.magic == H5C__H5C_CACHE_ENTRY_T_BAD_MAGIC);
+ HDassert(list->cache_info.type == H5AC_SOHM_LIST);
- /* Reset the dirty flag. */
- list->cache_info.is_dirty = FALSE;
-
- if(destroy)
- if(H5SM_list_dest(f, list) < 0)
- HGOTO_ERROR(H5E_SOHM, H5E_CANTFREE, FAIL, "unable to destroy SOHM list")
+ /* Destroy Shared Object Header Message list */
+ if(H5SM_list_free(list) < 0)
+ HGOTO_ERROR(H5E_SOHM, H5E_CANTRELEASE, FAIL, "unable to free shared message list")
done:
FUNC_LEAVE_NOAPI(ret_value)
-} /* end of H5SM_list_clear() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5SM_list_size
- *
- * Purpose: Gets the size of a list on disk.
- *
- * Return: Non-negative on success/Negative on failure
- *
- * Programmer: James Laird
- * November 6, 2006
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5SM_list_size(const H5F_t H5_ATTR_UNUSED *f, const H5SM_list_t *list, size_t *size_ptr)
-{
- FUNC_ENTER_NOAPI_NOINIT_NOERR
-
- /* check arguments */
- HDassert(f);
- HDassert(list);
- HDassert(list->header);
- HDassert(size_ptr);
-
- /* Set size value */
- *size_ptr = list->header->list_size;
-
- FUNC_LEAVE_NOAPI(SUCCEED)
-} /* end H5SM_list_size() */
+} /* end H5O_cache_list_free_icr() */