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authorQuincey Koziol <koziol@hdfgroup.org>2010-05-27 20:27:13 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2010-05-27 20:27:13 (GMT)
commit9f90e06bd0b400f5b5d9631eb680c00da3199894 (patch)
treea707a89c16689e8dee5eb927ffacd7ec5a7de91d /test/cache_common.c
parent2f5164b1047a705e81fff46f1b8107426cbcc61b (diff)
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[svn-r18917] Description:
Bring r18911 (plus some adaptions to match the code on the trunk) from the metadata journaling "merging" branch to the trunk: More general changes to align trunk with eventual changes from metadata journaling branch. Tested on: FreeBSD/32 6.3 (duty) in debug mode FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x, w/C++ & FORTRAN, w/threadsafe, in debug mode Linux/64-amd64 2.6 (amani) w/Intel compilers, w/default API=1.6.x, w/C++ & FORTRAN, in production mode Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN, w/szip filter, in production mode Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN, in production mode Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in debug mode Mac OS X/32 10.6.3 (amazon) in debug mode Mac OS X/32 10.6.3 (amazon) w/C++ & FORTRAN, w/threadsafe, in production mode
Diffstat (limited to 'test/cache_common.c')
-rw-r--r--test/cache_common.c576
1 files changed, 457 insertions, 119 deletions
diff --git a/test/cache_common.c b/test/cache_common.c
index 868b4d9..4024816 100644
--- a/test/cache_common.c
+++ b/test/cache_common.c
@@ -547,10 +547,6 @@ check_write_permitted(const H5F_t UNUSED * f,
* Programmer: John Mainzer
* 6/10/04
*
- * Modifications:
- *
- * Added variable_clear. -- JRM 8/30/06
- *
*-------------------------------------------------------------------------
*/
@@ -682,16 +678,6 @@ notify_clear(H5F_t * f, void * thing, hbool_t dest)
* Programmer: John Mainzer
* 6/10/04
*
- * Modifications:
- *
- * JRM -- 4/4/06
- * Added code to decrement the pinning_ref_count s of entries
- * pinned by the target entry, and to unpin those entries
- * if the reference count drops to zero.
- *
- * JRM -- 8/30/06
- * Added variable_destroy().
- *
*-------------------------------------------------------------------------
*/
@@ -855,14 +841,6 @@ notify_dest(H5F_t * f, void * thing)
* Programmer: John Mainzer
* 6/10/04
*
- * Modifications:
- *
- * JRM -- 8/30/06
- * Added variable_flush() and flags_ptr parameter.
- *
- * JRM -- 9/1/06
- * Added support for flush operations.
- *
*-------------------------------------------------------------------------
*/
@@ -1042,11 +1020,6 @@ notify_flush(H5F_t *f, hid_t dxpl_id, hbool_t dest, haddr_t addr,
* Programmer: John Mainzer
* 6/10/04
*
- * Modifications:
- *
- * JRM -- 8/30/06
- * Added variable_load().
- *
*-------------------------------------------------------------------------
*/
@@ -1177,11 +1150,6 @@ notify_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, void *udata)
* Programmer: John Mainzer
* 6/10/04
*
- * Modifications:
- *
- * JRM -- 8/30/06
- * Added variable_size().
- *
*-------------------------------------------------------------------------
*/
@@ -1605,7 +1573,7 @@ execute_flush_op(H5F_t * file_ptr,
{
H5C_t * cache_ptr;
- HDassert( file_ptr ) ;
+ HDassert( file_ptr );
cache_ptr = file_ptr->shared->cache;
HDassert( cache_ptr != NULL );
HDassert( cache_ptr->magic == H5C__H5C_T_MAGIC );
@@ -1616,7 +1584,7 @@ execute_flush_op(H5F_t * file_ptr,
( entry_ptr->header.size == entry_ptr->size ) );
HDassert( op_ptr != NULL );
HDassert( ( 0 <= entry_ptr->type ) &&
- ( entry_ptr->type < NUMBER_OF_ENTRY_TYPES ) );
+ ( entry_ptr->type < NUMBER_OF_ENTRY_TYPES ) );
HDassert( ( 0 <= entry_ptr->index ) &&
( entry_ptr->index <= max_indices[entry_ptr->type] ) );
HDassert( ( 0 <= op_ptr->type ) &&
@@ -1926,26 +1894,27 @@ resize_entry(H5F_t * file_ptr,
if ( pass ) {
- base_addr = entries[type];
- entry_ptr = &(base_addr[idx]);
-
- HDassert( entry_ptr->index == idx );
- HDassert( entry_ptr->type == type );
- HDassert( entry_ptr == entry_ptr->self );
-
if ( in_cache ) {
H5C_t *cache_ptr = file_ptr->shared->cache;
HDassert( cache_ptr );
- if ( ! entry_in_cache(cache_ptr, type, idx) ) {
+ if ( ! entry_in_cache(cache_ptr, type, idx) ) {
- pass = FALSE;
+ pass = FALSE;
failure_mssg = "entry to be resized pinned is not in cache.";
- } else {
+ } else {
- if ( ! ( entry_ptr->header.is_pinned || entry_ptr->header.is_protected ) ) {
+ base_addr = entries[type];
+ entry_ptr = &(base_addr[idx]);
+
+ HDassert( entry_ptr->index == idx );
+ HDassert( entry_ptr->type == type );
+ HDassert( entry_ptr->cache_ptr == cache_ptr );
+ HDassert( entry_ptr == entry_ptr->self );
+
+ if ( ! ( entry_ptr->header.is_pinned || entry_ptr->header.is_protected ) ) {
pass = FALSE;
failure_mssg = "entry to be resized is not pinned or protected.";
@@ -3088,9 +3057,8 @@ insert_entry(H5F_t * file_ptr,
void
mark_entry_dirty(int32_t type,
- int32_t idx)
+ int32_t idx)
{
- /* const char * fcn_name = "mark_pinned_entry_dirty()"; */
herr_t result;
test_entry_t * base_addr;
test_entry_t * entry_ptr;
@@ -3138,7 +3106,7 @@ mark_entry_dirty(int32_t type,
/*-------------------------------------------------------------------------
* Function: move_entry()
*
- * Purpose: move the entry indicated by the type and index to its
+ * Purpose: Move the entry indicated by the type and index to its
* main or alternate address as indicated. If the entry is
* already at the desired entry, do nothing.
*
@@ -3163,70 +3131,73 @@ move_entry(H5C_t * cache_ptr,
test_entry_t * base_addr;
test_entry_t * entry_ptr;
- HDassert( cache_ptr );
- HDassert( ( 0 <= type ) && ( type < NUMBER_OF_ENTRY_TYPES ) );
- HDassert( ( 0 <= idx ) && ( idx <= max_indices[type] ) );
+ if ( pass ) {
- base_addr = entries[type];
- entry_ptr = &(base_addr[idx]);
+ HDassert( cache_ptr );
+ HDassert( ( 0 <= type ) && ( type < NUMBER_OF_ENTRY_TYPES ) );
+ HDassert( ( 0 <= idx ) && ( idx <= max_indices[type] ) );
- HDassert( entry_ptr->index == idx );
- HDassert( entry_ptr->type == type );
- HDassert( entry_ptr == entry_ptr->self );
- HDassert( entry_ptr->cache_ptr == cache_ptr );
- HDassert( !(entry_ptr->is_protected) );
- HDassert( !(entry_ptr->header.is_protected) );
+ base_addr = entries[type];
+ entry_ptr = &(base_addr[idx]);
+ HDassert( entry_ptr->index == idx );
+ HDassert( entry_ptr->type == type );
+ HDassert( entry_ptr == entry_ptr->self );
+ HDassert( entry_ptr->cache_ptr == cache_ptr );
+ HDassert( !(entry_ptr->is_protected) );
+ HDassert( !(entry_ptr->header.is_protected) );
- if ( entry_ptr->at_main_addr && !main_addr ) {
- /* move to alt addr */
+ if ( entry_ptr->at_main_addr && !main_addr ) {
- HDassert( entry_ptr->addr == entry_ptr->main_addr );
+ /* move to alt addr */
- done = FALSE;
- old_addr = entry_ptr->addr;
- new_addr = entry_ptr->alt_addr;
+ HDassert( entry_ptr->addr == entry_ptr->main_addr );
- } else if ( !(entry_ptr->at_main_addr) && main_addr ) {
+ done = FALSE;
+ old_addr = entry_ptr->addr;
+ new_addr = entry_ptr->alt_addr;
- /* move to main addr */
+ } else if ( !(entry_ptr->at_main_addr) && main_addr ) {
- HDassert( entry_ptr->addr == entry_ptr->alt_addr );
+ /* move to main addr */
- done = FALSE;
- old_addr = entry_ptr->addr;
- new_addr = entry_ptr->main_addr;
- }
+ HDassert( entry_ptr->addr == entry_ptr->alt_addr );
- if ( ! done ) {
+ done = FALSE;
+ old_addr = entry_ptr->addr;
+ new_addr = entry_ptr->main_addr;
+ }
- entry_ptr->is_dirty = TRUE;
+ if ( ! done ) {
- result = H5C_move_entry(cache_ptr, &(types[type]),
- old_addr, new_addr);
- }
+ entry_ptr->is_dirty = TRUE;
- if ( ! done ) {
+ result = H5C_move_entry(cache_ptr, &(types[type]),
+ old_addr, new_addr);
+ }
- if ( ( result < 0 ) ||
- ( ( ! ( entry_ptr->header.destroy_in_progress ) ) &&
- ( entry_ptr->header.addr != new_addr ) ) ) {
+ if ( ! done ) {
- pass = FALSE;
- failure_mssg = "error in H5C_move_entry().";
+ if ( ( result < 0 ) ||
+ ( ( ! ( entry_ptr->header.destroy_in_progress ) ) &&
+ ( entry_ptr->header.addr != new_addr ) ) ) {
- } else {
+ pass = FALSE;
+ failure_mssg = "error in H5C_move_entry().";
+
+ } else {
- entry_ptr->addr = new_addr;
- entry_ptr->at_main_addr = main_addr;
+ entry_ptr->addr = new_addr;
+ entry_ptr->at_main_addr = main_addr;
+ }
}
- }
- HDassert( ((entry_ptr->header).type)->id == type );
+ HDassert( ((entry_ptr->header).type)->id == type );
- HDassert( entry_ptr->header.is_dirty );
- HDassert( entry_ptr->is_dirty );
+ HDassert( entry_ptr->header.is_dirty );
+ HDassert( entry_ptr->is_dirty );
+ }
return;
@@ -3253,7 +3224,6 @@ protect_entry(H5F_t * file_ptr,
int32_t type,
int32_t idx)
{
- /* const char * fcn_name = "protect_entry()"; */
H5C_t * cache_ptr;
test_entry_t * base_addr;
test_entry_t * entry_ptr;
@@ -3489,7 +3459,6 @@ unpin_entry(int32_t type,
test_entry_t * entry_ptr;
if ( pass ) {
-
HDassert( ( 0 <= type ) && ( type < NUMBER_OF_ENTRY_TYPES ) );
HDassert( ( 0 <= idx ) && ( idx <= max_indices[type] ) );
@@ -3552,8 +3521,6 @@ unprotect_entry(H5F_t * file_ptr,
int32_t idx,
unsigned int flags)
{
- /* const char * fcn_name = "unprotect_entry()"; */
- H5C_t *cache_ptr;
herr_t result;
hbool_t pin_flag_set;
hbool_t unpin_flag_set;
@@ -3561,10 +3528,6 @@ unprotect_entry(H5F_t * file_ptr,
test_entry_t * entry_ptr;
if ( pass ) {
-
- cache_ptr = file_ptr->shared->cache;
-
- HDassert( cache_ptr );
HDassert( ( 0 <= type ) && ( type < NUMBER_OF_ENTRY_TYPES ) );
HDassert( ( 0 <= idx ) && ( idx <= max_indices[type] ) );
@@ -3574,7 +3537,6 @@ unprotect_entry(H5F_t * file_ptr,
HDassert( entry_ptr->index == idx );
HDassert( entry_ptr->type == type );
HDassert( entry_ptr == entry_ptr->self );
- HDassert( entry_ptr->cache_ptr == cache_ptr );
HDassert( entry_ptr->header.is_protected );
HDassert( entry_ptr->is_protected );
@@ -3599,26 +3561,6 @@ unprotect_entry(H5F_t * file_ptr,
( entry_ptr->size != entry_ptr->header.size ) ||
( entry_ptr->addr != entry_ptr->header.addr ) ) {
-#if 1 /* JRM */
- if ( result < 0 ) {
- HDfprintf(stdout, "result is negative.\n");
- }
- if ( ( entry_ptr->header.is_protected ) &&
- ( ( ! ( entry_ptr->is_read_only ) ) ||
- ( entry_ptr->ro_ref_count <= 0 ) ) ) {
- HDfprintf(stdout, "protected and not RO or refcnt <= 0.\n");
- }
- if ( entry_ptr->header.type != &(types[type]) ) {
- HDfprintf(stdout, "type disagreement.\n");
- }
- if ( entry_ptr->size != entry_ptr->header.size ) {
- HDfprintf(stdout, "size disagreement.\n");
- }
- if ( entry_ptr->addr != entry_ptr->header.addr ) {
- HDfprintf(stdout, "addr disagreement.\n");
- }
-#endif /* JRM */
-
pass = FALSE;
failure_mssg = "error in H5C_unprotect().";
@@ -5133,3 +5075,399 @@ destroy_flush_dependency(int32_t par_type,
} /* destroy_flush_dependency() */
+
+/*** H5AC level utility functions ***/
+
+
+/*-------------------------------------------------------------------------
+ * Function: check_and_validate_cache_hit_rate()
+ *
+ * Purpose: Use the API functions to get and reset the cache hit rate.
+ * Verify that the value returned by the API call agrees with
+ * the cache internal data structures.
+ *
+ * If the number of cache accesses exceeds the value provided
+ * in the min_accesses parameter, and the hit rate is less than
+ * min_hit_rate, set pass to FALSE, and set failure_mssg to
+ * a string indicating that hit rate was unexpectedly low.
+ *
+ * Return hit rate in *hit_rate_ptr, and print the data to
+ * stdout if requested.
+ *
+ * If an error is detected, set pass to FALSE, and set
+ * failure_mssg to an appropriate value.
+ *
+ * Return: void
+ *
+ * Programmer: John Mainzer
+ * 4/18/04
+ *
+ *-------------------------------------------------------------------------
+ */
+
+void
+check_and_validate_cache_hit_rate(hid_t file_id,
+ double * hit_rate_ptr,
+ hbool_t dump_data,
+ int64_t min_accesses,
+ double min_hit_rate)
+{
+ /* const char * fcn_name = "check_and_validate_cache_hit_rate()"; */
+ herr_t result;
+ int64_t cache_hits = 0;
+ int64_t cache_accesses = 0;
+ double expected_hit_rate;
+ double hit_rate;
+ H5F_t * file_ptr = NULL;
+ H5C_t * cache_ptr = NULL;
+
+ /* get a pointer to the files internal data structure */
+ if ( pass ) {
+
+ file_ptr = (H5F_t *)H5I_object_verify(file_id, H5I_FILE);
+
+ if ( file_ptr == NULL ) {
+
+ pass = FALSE;
+ failure_mssg = "Can't get file_ptr.";
+
+ } else {
+
+ cache_ptr = file_ptr->shared->cache;
+ }
+ }
+
+ /* verify that we can access the cache data structure */
+ if ( pass ) {
+
+ if ( ( cache_ptr == NULL ) ||
+ ( cache_ptr->magic != H5C__H5C_T_MAGIC ) ) {
+
+ pass = FALSE;
+ failure_mssg = "Can't access cache resize_ctl.";
+ }
+ }
+
+ /* compare the cache's internal configuration with the expected value */
+ if ( pass ) {
+
+ cache_hits = cache_ptr->cache_hits;
+ cache_accesses = cache_ptr->cache_accesses;
+
+ if ( cache_accesses > 0 ) {
+
+ expected_hit_rate = ((double)cache_hits) / ((double)cache_accesses);
+
+ } else {
+
+ expected_hit_rate = 0.0;
+ }
+
+ result = H5Fget_mdc_hit_rate(file_id, &hit_rate);
+
+ if ( result < 0 ) {
+
+ pass = FALSE;
+ failure_mssg = "H5Fget_mdc_hit_rate() failed.";
+
+ } else if ( ! DBL_REL_EQUAL(hit_rate, expected_hit_rate, 0.00001) ) {
+
+ pass = FALSE;
+ failure_mssg = "unexpected hit rate.";
+
+ }
+ }
+
+ if ( pass ) { /* reset the hit rate */
+
+ result = H5Freset_mdc_hit_rate_stats(file_id);
+
+ if ( result < 0 ) {
+
+ pass = FALSE;
+ failure_mssg = "H5Freset_mdc_hit_rate_stats() failed.";
+ }
+ }
+
+ /* set *hit_rate_ptr if appropriate */
+ if ( ( pass ) && ( hit_rate_ptr != NULL ) ) {
+
+ *hit_rate_ptr = hit_rate;
+ }
+
+ /* dump data to stdout if requested */
+ if ( ( pass ) && ( dump_data ) ) {
+
+ HDfprintf(stdout,
+ "cache_hits: %ld, cache_accesses: %ld, hit_rate: %lf\n",
+ (long)cache_hits, (long)cache_accesses, hit_rate);
+ }
+
+ if ( ( pass ) &&
+ ( cache_accesses > min_accesses ) &&
+ ( hit_rate < min_hit_rate ) ) {
+
+ pass = FALSE;
+ failure_mssg = "Unexpectedly low hit rate.";
+ }
+
+ return;
+
+} /* check_and_validate_cache_hit_rate() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: check_and_validate_cache_size()
+ *
+ * Purpose: Use the API function to get the cache size data. Verify
+ * that the values returned by the API call agree with
+ * the cache internal data structures.
+ *
+ * Return size data in the locations specified by the pointer
+ * parameters if these parameters are not NULL. Print the
+ * data to stdout if requested.
+ *
+ * If an error is detected, set pass to FALSE, and set
+ * failure_mssg to an appropriate value.
+ *
+ * Return: void
+ *
+ * Programmer: John Mainzer
+ * 4/18/04
+ *
+ *-------------------------------------------------------------------------
+ */
+
+void
+check_and_validate_cache_size(hid_t file_id,
+ size_t * max_size_ptr,
+ size_t * min_clean_size_ptr,
+ size_t * cur_size_ptr,
+ int32_t * cur_num_entries_ptr,
+ hbool_t dump_data)
+{
+ /* const char * fcn_name = "check_and_validate_cache_size()"; */
+ herr_t result;
+ size_t expected_max_size;
+ size_t max_size;
+ size_t expected_min_clean_size;
+ size_t min_clean_size;
+ size_t expected_cur_size;
+ size_t cur_size;
+ int32_t expected_cur_num_entries;
+ int cur_num_entries;
+ H5F_t * file_ptr = NULL;
+ H5C_t * cache_ptr = NULL;
+
+ /* get a pointer to the files internal data structure */
+ if ( pass ) {
+
+ file_ptr = (H5F_t *)H5I_object_verify(file_id, H5I_FILE);
+
+ if ( file_ptr == NULL ) {
+
+ pass = FALSE;
+ failure_mssg = "Can't get file_ptr.";
+
+ } else {
+
+ cache_ptr = file_ptr->shared->cache;
+ }
+ }
+
+ /* verify that we can access the cache data structure */
+ if ( pass ) {
+
+ if ( ( cache_ptr == NULL ) ||
+ ( cache_ptr->magic != H5C__H5C_T_MAGIC ) ) {
+
+ pass = FALSE;
+ failure_mssg = "Can't access cache data structure.";
+ }
+ }
+
+ /* compare the cache's internal configuration with the expected value */
+ if ( pass ) {
+
+ expected_max_size = cache_ptr->max_cache_size;
+ expected_min_clean_size = cache_ptr->min_clean_size;
+ expected_cur_size = cache_ptr->index_size;
+ expected_cur_num_entries = cache_ptr->index_len;
+
+ result = H5Fget_mdc_size(file_id,
+ &max_size,
+ &min_clean_size,
+ &cur_size,
+ &cur_num_entries);
+
+ if ( result < 0 ) {
+
+ pass = FALSE;
+ failure_mssg = "H5Fget_mdc_size() failed.";
+
+ } else if ( ( max_size != expected_max_size ) ||
+ ( min_clean_size != expected_min_clean_size ) ||
+ ( cur_size != expected_cur_size ) ||
+ ( cur_num_entries != (int)expected_cur_num_entries ) ) {
+
+ pass = FALSE;
+ failure_mssg = "H5Fget_mdc_size() returned unexpected value(s).";
+
+ }
+ }
+
+ /* return size values if requested */
+ if ( ( pass ) && ( max_size_ptr != NULL ) ) {
+
+ *max_size_ptr = max_size;
+ }
+
+ if ( ( pass ) && ( min_clean_size_ptr != NULL ) ) {
+
+ *min_clean_size_ptr = min_clean_size;
+ }
+
+ if ( ( pass ) && ( cur_size_ptr != NULL ) ) {
+
+ *cur_size_ptr = cur_size;
+ }
+
+ if ( ( pass ) && ( cur_num_entries_ptr != NULL ) ) {
+
+ *cur_num_entries_ptr = cur_num_entries;
+ }
+
+
+ /* dump data to stdout if requested */
+ if ( ( pass ) && ( dump_data ) ) {
+
+ HDfprintf(stdout,
+ "max_sz: %ld, min_clean_sz: %ld, cur_sz: %ld, cur_ent: %ld\n",
+ (long)max_size, (long)min_clean_size, (long)cur_size,
+ (long)cur_num_entries);
+ }
+
+ return;
+
+} /* check_and_validate_cache_size() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: validate_mdc_config()
+ *
+ * Purpose: Verify that the file indicated by the file_id parameter
+ * has both internal and external configuration matching
+ * *config_ptr.
+ *
+ * Do nothin on success. On failure, set pass to FALSE, and
+ * load an error message into failue_mssg. Note that
+ * failure_msg is assumed to be at least 128 bytes in length.
+ *
+ * Return: void
+ *
+ * Programmer: John Mainzer
+ * 4/14/04
+ *
+ *-------------------------------------------------------------------------
+ */
+
+void
+validate_mdc_config(hid_t file_id,
+ H5AC_cache_config_t * ext_config_ptr,
+ hbool_t compare_init,
+ int test_num)
+{
+ /* const char * fcn_name = "validate_mdc_config()"; */
+ static char msg[256];
+ H5F_t * file_ptr = NULL;
+ H5C_t * cache_ptr = NULL;
+ H5AC_cache_config_t scratch;
+ H5C_auto_size_ctl_t int_config;
+
+ XLATE_EXT_TO_INT_MDC_CONFIG(int_config, (*ext_config_ptr))
+
+ /* get a pointer to the files internal data structure */
+ if ( pass ) {
+
+ file_ptr = (H5F_t *)H5I_object_verify(file_id, H5I_FILE);
+
+ if ( file_ptr == NULL ) {
+
+ pass = FALSE;
+ HDsnprintf(msg, (size_t)128, "Can't get file_ptr #%d.", test_num);
+ failure_mssg = msg;
+
+ } else {
+
+ cache_ptr = file_ptr->shared->cache;
+ }
+ }
+
+ /* verify that we can access the internal version of the cache config */
+ if ( pass ) {
+
+ if ( ( cache_ptr == NULL ) ||
+ ( cache_ptr->magic != H5C__H5C_T_MAGIC ) ||
+ ( cache_ptr->resize_ctl.version != H5C__CURR_AUTO_SIZE_CTL_VER ) ){
+
+ pass = FALSE;
+ HDsnprintf(msg, (size_t)128,
+ "Can't access cache resize_ctl #%d.", test_num);
+ failure_mssg = msg;
+ }
+ }
+
+ /* compare the cache's internal configuration with the expected value */
+ if ( pass ) {
+
+ if ( ! RESIZE_CONFIGS_ARE_EQUAL(int_config, cache_ptr->resize_ctl,
+ compare_init) ) {
+
+ pass = FALSE;
+ HDsnprintf(msg, (size_t)128,
+ "Unexpected internal config #%d.", test_num);
+ failure_mssg = msg;
+ }
+ }
+
+ /* obtain external cache config */
+ if ( pass ) {
+
+ scratch.version = H5AC__CURR_CACHE_CONFIG_VERSION;
+
+ if ( H5Fget_mdc_config(file_id, &scratch) < 0 ) {
+
+ pass = FALSE;
+ HDsnprintf(msg, (size_t)128,
+ "H5Fget_mdc_config() failed #%d.", test_num);
+ failure_mssg = msg;
+ }
+ }
+
+ if ( pass ) {
+
+ /* Recall that in any configuration supplied by the cache
+ * at run time, the set_initial_size field will always
+ * be FALSE, regardless of the value passed in. Thus we
+ * always presume that this field need not match that of
+ * the supplied external configuration.
+ *
+ * The cache also sets the initial_size field to the current
+ * cache max size instead of the value initialy supplied.
+ * Depending on circumstances, this may or may not match
+ * the original. Hence the compare_init parameter.
+ */
+ if ( ! CACHE_CONFIGS_EQUAL((*ext_config_ptr), scratch, \
+ FALSE, compare_init) ) {
+
+ pass = FALSE;
+ HDsnprintf(msg, (size_t)128,
+ "Unexpected external config #%d.", test_num);
+ failure_mssg = msg;
+ }
+ }
+
+ return;
+
+} /* validate_mdc_config() */
+