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author | Quincey Koziol <koziol@hdfgroup.org> | 2017-01-29 07:19:37 (GMT) |
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committer | Quincey Koziol <koziol@hdfgroup.org> | 2017-01-29 07:19:37 (GMT) |
commit | 1949d5756d424be0b23fc127fc99140374a7dd13 (patch) | |
tree | e7d368b8bbcb589e48e88c1b781b08e16655a832 /src/H5C.c | |
parent | 5a776edb8156c36d3a7e2f9e23c6fb349eaa90e0 (diff) | |
download | hdf5-1949d5756d424be0b23fc127fc99140374a7dd13.zip hdf5-1949d5756d424be0b23fc127fc99140374a7dd13.tar.gz hdf5-1949d5756d424be0b23fc127fc99140374a7dd13.tar.bz2 |
Cache image feature and testing
Diffstat (limited to 'src/H5C.c')
-rw-r--r-- | src/H5C.c | 265 |
1 files changed, 231 insertions, 34 deletions
@@ -46,9 +46,9 @@ * - Change protect/unprotect to lock/unlock. * * - Flush entries in increasing address order in - * H5C_make_space_in_cache(). + * H5C__make_space_in_cache(). * - * - Also in H5C_make_space_in_cache(), use high and low water marks + * - Also in H5C__make_space_in_cache(), use high and low water marks * to reduce the number of I/O calls. * * - When flushing, attempt to combine contiguous entries to reduce @@ -155,11 +155,6 @@ static void * H5C_load_entry(H5F_t * f, haddr_t addr, void * udata); -static herr_t H5C_make_space_in_cache(H5F_t * f, - hid_t dxpl_id, - size_t space_needed, - hbool_t write_permitted); - static herr_t H5C__mark_flush_dep_dirty(H5C_cache_entry_t * entry); static herr_t H5C__mark_flush_dep_clean(H5C_cache_entry_t * entry); @@ -389,6 +384,7 @@ H5C_create(size_t max_cache_size, cache_ptr->resize_enabled = FALSE; cache_ptr->cache_full = FALSE; cache_ptr->size_decreased = FALSE; + cache_ptr->resize_in_progress = FALSE; (cache_ptr->resize_ctl).version = H5C__CURR_AUTO_SIZE_CTL_VER; (cache_ptr->resize_ctl).rpt_fcn = NULL; @@ -437,9 +433,32 @@ H5C_create(size_t max_cache_size, ((cache_ptr->epoch_markers)[i]).type = H5AC_EPOCH_MARKER; } + /* Initialize cache image generation on file close related fields. + * Initial value of image_ctl must match H5C__DEFAULT_CACHE_IMAGE_CTL + * in H5Cprivate.h. + */ + cache_ptr->image_ctl.version = H5C__CURR_CACHE_IMAGE_CTL_VER; + cache_ptr->image_ctl.generate_image = FALSE; + cache_ptr->image_ctl.save_resize_status = FALSE; + cache_ptr->image_ctl.entry_ageout = -1; + cache_ptr->image_ctl.flags = H5C_CI__ALL_FLAGS; + + cache_ptr->serialization_in_progress= FALSE; + cache_ptr->load_image = FALSE; + cache_ptr->image_loaded = FALSE; + cache_ptr->delete_image = FALSE; + cache_ptr->image_addr = HADDR_UNDEF; + cache_ptr->image_len = 0; + cache_ptr->image_data_len = 0; + cache_ptr->entries_loaded_counter = 0; cache_ptr->entries_inserted_counter = 0; cache_ptr->entries_relocated_counter = 0; + cache_ptr->entry_fd_height_change_counter = 0; + + cache_ptr->num_entries_in_image = 0; + cache_ptr->image_entries = NULL; + cache_ptr->image_buffer = NULL; /* initialize free space manager related fields: */ cache_ptr->rdfsm_settled = FALSE; @@ -456,6 +475,10 @@ H5C_create(size_t max_cache_size, cache_ptr->prefix[0] = '\0'; /* empty string */ +#ifndef NDEBUG + cache_ptr->get_entry_ptr_from_addr_counter = 0; +#endif /* NDEBUG */ + /* Set return value */ ret_value = cache_ptr; @@ -733,6 +756,21 @@ H5C_prep_for_file_close(H5F_t *f, hid_t dxpl_id) /* Make certain there aren't any protected entries */ HDassert(cache_ptr->pl_len == 0); + /* If the file is opened and closed without any access to + * any group or dataset, it is possible that the cache image (if + * it exists) has not been read yet. Do this now if required. + */ + if(cache_ptr->load_image) { + cache_ptr->load_image = FALSE; + if(H5C__load_cache_image(f, dxpl_id) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTLOAD, FAIL, "Can't load cache image") + } /* end if */ + + /* Generate the cache image, if requested */ + if(cache_ptr->image_ctl.generate_image) + if(H5C__prep_image_for_file_close(f, dxpl_id) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTCREATE, FAIL, "Can't create cache image") + done: FUNC_LEAVE_NOAPI(ret_value) } /* H5C_prep_for_file_close() */ @@ -775,10 +813,20 @@ H5C_dest(H5F_t * f, hid_t dxpl_id) HDassert(cache_ptr->magic == H5C__H5C_T_MAGIC); HDassert(cache_ptr->close_warning_received); +#if H5AC_DUMP_IMAGE_STATS_ON_CLOSE + if(H5C_image_stats(cache_ptr, TRUE) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Can't display cache image stats") +#endif /* H5AC_DUMP_IMAGE_STATS_ON_CLOSE */ + /* Flush and invalidate all cache entries */ if(H5C_flush_invalidate_cache(f, dxpl_id, H5C__NO_FLAGS_SET) < 0 ) HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush cache") + /* Generate & write cache image if requested */ + if(cache_ptr->image_ctl.generate_image) + if(H5C__generate_cache_image(f, dxpl_id, cache_ptr) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTCREATE, FAIL, "Can't generate metadata cache image") + if(cache_ptr->slist_ptr != NULL) { H5SL_close(cache_ptr->slist_ptr); cache_ptr->slist_ptr = NULL; @@ -790,6 +838,12 @@ H5C_dest(H5F_t * f, hid_t dxpl_id) } /* end if */ #ifndef NDEBUG +#if H5C_DO_SANITY_CHECKS + if(cache_ptr->get_entry_ptr_from_addr_counter > 0) + HDfprintf(stdout, "*** %ld calls to H5C_get_entry_ptr_from_add(). ***\n", + cache_ptr->get_entry_ptr_from_addr_counter); +#endif /* H5C_DO_SANITY_CHECKS */ + cache_ptr->magic = 0; #endif /* NDEBUG */ @@ -1173,7 +1227,7 @@ H5C_flush_to_min_clean(H5F_t * f, "cache write is not permitted!?!\n"); } #if 1 /* original code */ - if(H5C_make_space_in_cache(f, dxpl_id, (size_t)0, write_permitted) < 0) + if(H5C__make_space_in_cache(f, dxpl_id, (size_t)0, write_permitted) < 0) HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "H5C__make_space_in_cache failed") #else /* modified code -- commented out for now */ if ( cache_ptr->max_cache_size > cache_ptr->index_size ) { @@ -1343,6 +1397,7 @@ H5C_insert_entry(H5F_t * f, HDassert( cache_ptr ); HDassert( cache_ptr->magic == H5C__H5C_T_MAGIC ); HDassert( type ); + HDassert( type->mem_type == cache_ptr->class_table_ptr[type->id]->mem_type ); HDassert( type->image_len ); HDassert( H5F_addr_defined(addr) ); HDassert( thing ); @@ -1442,6 +1497,22 @@ H5C_insert_entry(H5F_t * f, entry_ptr->aux_next = NULL; entry_ptr->aux_prev = NULL; + /* initialize cache image related fields */ + entry_ptr->include_in_image = FALSE; + entry_ptr->lru_rank = 0; + entry_ptr->image_dirty = FALSE; + entry_ptr->fd_parent_count = 0; + entry_ptr->fd_parent_addrs = NULL; + entry_ptr->fd_child_count = 0; + entry_ptr->fd_dirty_child_count = 0; + entry_ptr->image_fd_height = 0; + entry_ptr->prefetched = FALSE; + entry_ptr->prefetch_type_id = 0; + entry_ptr->age = 0; +#ifndef NDEBUG /* debugging field */ + entry_ptr->serialization_count = 0; +#endif /* NDEBUG */ + #ifdef H5_HAVE_PARALLEL entry_ptr->coll_next = NULL; entry_ptr->coll_prev = NULL; @@ -1487,7 +1558,7 @@ H5C_insert_entry(H5F_t * f, /* Note that space_needed is just the amount of space that * needed to insert the new entry without exceeding the cache - * size limit. The subsequent call to H5C_make_space_in_cache() + * size limit. The subsequent call to H5C__make_space_in_cache() * may evict the entries required to free more or less space * depending on conditions. It MAY be less if the cache is * currently undersized, or more if the cache is oversized. @@ -1510,8 +1581,8 @@ H5C_insert_entry(H5F_t * f, * no point in worrying about the third. */ - if(H5C_make_space_in_cache(f, dxpl_id, space_needed, write_permitted) < 0) - HGOTO_ERROR(H5E_CACHE, H5E_CANTINS, FAIL, "H5C_make_space_in_cache failed.") + if(H5C__make_space_in_cache(f, dxpl_id, space_needed, write_permitted) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTINS, FAIL, "H5C__make_space_in_cache failed.") } H5C__INSERT_IN_INDEX(cache_ptr, entry_ptr, FAIL) @@ -2342,6 +2413,7 @@ H5C_protect(H5F_t * f, HDassert( cache_ptr ); HDassert( cache_ptr->magic == H5C__H5C_T_MAGIC ); HDassert( type ); + HDassert( type->mem_type == cache_ptr->class_table_ptr[type->id]->mem_type ); HDassert( H5F_addr_defined(addr) ); #if H5C_DO_EXTREME_SANITY_CHECKS @@ -2351,6 +2423,13 @@ H5C_protect(H5F_t * f, HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, NULL, "an extreme sanity check failed on entry") #endif /* H5C_DO_EXTREME_SANITY_CHECKS */ + /* Load the cache image, if requested */ + if(cache_ptr->load_image) { + cache_ptr->load_image = FALSE; + if(H5C__load_cache_image(f, dxpl_id) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTLOAD, NULL, "Can't load cache image") + } /* end if */ + read_only = ( (flags & H5C__READ_ONLY_FLAG) != 0 ); flush_last = ( (flags & H5C__FLUSH_LAST_FLAG) != 0 ); @@ -2384,6 +2463,21 @@ H5C_protect(H5F_t * f, if(entry_ptr->ring != ring) HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, NULL, "ring type mismatch occured for cache entry\n") + HDassert(entry_ptr->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC); + + if(entry_ptr->prefetched) { + /* This call removes the prefetched entry from the cache, + * and replaces it with an entry deserialized from the + * image of the prefetched entry. + */ + if(H5C__deserialize_prefetched_entry(f, dxpl_id, cache_ptr, &entry_ptr, type, addr, udata) < 0) + HGOTO_ERROR(H5E_CACHE, H5E_CANTLOAD, NULL, "can't deserialize prefetched entry.") + + HDassert(entry_ptr->magic == H5C__H5C_CACHE_ENTRY_T_MAGIC); + HDassert(!entry_ptr->prefetched); + HDassert(entry_ptr->addr == addr); + } /* end if */ + /* Check for trying to load the wrong type of entry from an address */ if(entry_ptr->type != type) HGOTO_ERROR(H5E_CACHE, H5E_BADTYPE, NULL, "incorrect cache entry type") @@ -2501,7 +2595,7 @@ H5C_protect(H5F_t * f, empty_space = cache_ptr->max_cache_size - cache_ptr->index_size; /* try to free up if necceary and if evictions are permitted. Note - * that if evictions are enabled, we will call H5C_make_space_in_cache() + * that if evictions are enabled, we will call H5C__make_space_in_cache() * regardless if the min_free_space requirement is not met. */ if ( ( cache_ptr->evictions_enabled ) && @@ -2536,7 +2630,7 @@ H5C_protect(H5F_t * f, /* Note that space_needed is just the amount of space that * needed to insert the new entry without exceeding the cache - * size limit. The subsequent call to H5C_make_space_in_cache() + * size limit. The subsequent call to H5C__make_space_in_cache() * may evict the entries required to free more or less space * depending on conditions. It MAY be less if the cache is * currently undersized, or more if the cache is oversized. @@ -2563,8 +2657,8 @@ H5C_protect(H5F_t * f, * see no point in worrying about the fourth. */ - if(H5C_make_space_in_cache(f, dxpl_id, space_needed, write_permitted) < 0 ) - HGOTO_ERROR(H5E_CACHE, H5E_CANTPROTECT, NULL, "H5C_make_space_in_cache failed 1.") + if(H5C__make_space_in_cache(f, dxpl_id, space_needed, write_permitted) < 0 ) + HGOTO_ERROR(H5E_CACHE, H5E_CANTPROTECT, NULL, "H5C__make_space_in_cache failed 1.") } /* Insert the entry in the hash table. It can't be dirty yet, so @@ -2684,7 +2778,7 @@ H5C_protect(H5F_t * f, * bring the cache size down to the current maximum cache size. * * Also, if the min_clean_size requirement is not met, we - * should also call H5C_make_space_in_cache() to bring us + * should also call H5C__make_space_in_cache() to bring us * into complience. */ @@ -2701,8 +2795,8 @@ H5C_protect(H5F_t * f, if(cache_ptr->index_size > cache_ptr->max_cache_size) cache_ptr->cache_full = TRUE; - if(H5C_make_space_in_cache(f, dxpl_id, (size_t)0, write_permitted) < 0 ) - HGOTO_ERROR(H5E_CACHE, H5E_CANTPROTECT, NULL, "H5C_make_space_in_cache failed 2.") + if(H5C__make_space_in_cache(f, dxpl_id, (size_t)0, write_permitted) < 0 ) + HGOTO_ERROR(H5E_CACHE, H5E_CANTPROTECT, NULL, "H5C__make_space_in_cache failed 2.") } } } @@ -3815,6 +3909,7 @@ H5C_create_flush_dependency(void * parent_thing, void * child_thing) HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed for flush dependency parent list") child_entry->flush_dep_parent_nalloc *= 2; } /* end else */ + cache_ptr->entry_fd_height_change_counter++; } /* end if */ /* Add the dependency to the child's parent array */ @@ -4023,6 +4118,7 @@ H5C__auto_adjust_cache_size(H5F_t * f, { H5C_t * cache_ptr = f->shared->cache; herr_t result; + hbool_t reentrant_call = FALSE; hbool_t inserted_epoch_marker = FALSE; size_t new_max_cache_size = 0; size_t old_max_cache_size = 0; @@ -4042,6 +4138,18 @@ H5C__auto_adjust_cache_size(H5F_t * f, HDassert( (double)0.0f <= (cache_ptr->resize_ctl).min_clean_fraction ); HDassert( (cache_ptr->resize_ctl).min_clean_fraction <= (double)100.0f ); + /* check to see if cache_ptr->resize_in_progress is TRUE. If it, this + * is a re-entrant call via a client callback called in the resize + * process. To avoid an infinite recursion, set reentrant_call to + * TRUE, and goto done. + */ + if(cache_ptr->resize_in_progress) { + reentrant_call = TRUE; + HGOTO_DONE(SUCCEED); + } /* end if */ + + cache_ptr->resize_in_progress = TRUE; + if ( !cache_ptr->resize_enabled ) { HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Auto cache resize disabled.") @@ -4340,6 +4448,12 @@ H5C__auto_adjust_cache_size(H5F_t * f, } done: + /* Sanity checks */ + HDassert(cache_ptr->resize_in_progress); + if(!reentrant_call) + cache_ptr->resize_in_progress = FALSE; + HDassert((!reentrant_call) || (cache_ptr->resize_in_progress)); + FUNC_LEAVE_NOAPI(ret_value) } /* H5C__auto_adjust_cache_size() */ @@ -6136,6 +6250,8 @@ H5C__flush_single_entry(H5F_t *f, hid_t dxpl_id, H5C_cache_entry_t *entry_ptr, hbool_t destroy_entry; /* internal flag */ hbool_t generate_image; /* internal flag */ hbool_t was_dirty; + hbool_t suppress_image_entry_writes = FALSE; + hbool_t suppress_image_entry_frees = FALSE; haddr_t entry_addr = HADDR_UNDEF; herr_t ret_value = SUCCEED; /* Return value */ @@ -6178,6 +6294,28 @@ H5C__flush_single_entry(H5F_t *f, hid_t dxpl_id, H5C_cache_entry_t *entry_ptr, else write_entry = FALSE; + /* if we have received close warning, and we have been instructed to + * generate a metadata cache image, and we have actually constructed + * the entry images, set suppress_image_entry_frees to TRUE. + * + * Set suppress_image_entry_writes to TRUE if indicated by the + * image_ctl flags. + */ + if(cache_ptr->close_warning_received && cache_ptr->image_ctl.generate_image + && cache_ptr->num_entries_in_image > 0 && cache_ptr->image_entries) { + /* Sanity checks */ + HDassert(entry_ptr->image_up_to_date || !(entry_ptr->include_in_image)); + HDassert(entry_ptr->image_ptr || !(entry_ptr->include_in_image)); + HDassert((!clear_only) || !(entry_ptr->include_in_image)); + HDassert((!take_ownership) || !(entry_ptr->include_in_image)); + HDassert((!free_file_space) || !(entry_ptr->include_in_image)); + + suppress_image_entry_frees = TRUE; + + if(cache_ptr->image_ctl.flags & H5C_CI__SUPRESS_ENTRY_WRITES) + suppress_image_entry_writes = TRUE; + } /* end if */ + /* run initial sanity checks */ #if H5C_DO_SANITY_CHECKS if(entry_ptr->in_slist) { @@ -6232,6 +6370,9 @@ H5C__flush_single_entry(H5F_t *f, hid_t dxpl_id, H5C_cache_entry_t *entry_ptr, } /* end if */ if(!(entry_ptr->image_up_to_date)) { + /* Sanity check */ + HDassert(!entry_ptr->prefetched); + /* Generate the entry's image */ if(H5C__generate_image(f, cache_ptr, entry_ptr, dxpl_id) < 0) HGOTO_ERROR(H5E_CACHE, H5E_CANTGET, FAIL, "can't generate entry's image") @@ -6252,7 +6393,17 @@ H5C__flush_single_entry(H5F_t *f, hid_t dxpl_id, H5C_cache_entry_t *entry_ptr, HGOTO_ERROR(H5E_CACHE, H5E_SYSTEM, FAIL, "Write when writes are always forbidden!?!?!") #endif /* H5C_DO_SANITY_CHECKS */ - if(((entry_ptr->type->flags) & H5C__CLASS_SKIP_WRITES) == 0) { + /* Write the image to disk unless the write is suppressed. + * + * This happens if both suppress_image_entry_writes and + * entry_ptr->include_in_image are TRUE, or if the + * H5AC__CLASS_SKIP_WRITES is set in the entry's type. This + * flag should only be used in test code + */ + if((!suppress_image_entry_writes || !entry_ptr->include_in_image) + && (((entry_ptr->type->flags) & H5C__CLASS_SKIP_WRITES) == 0)) { + H5FD_mem_t mem_type = H5FD_MEM_DEFAULT; + #ifdef H5_HAVE_PARALLEL if(cache_ptr->coll_write_list) { if(H5SL_insert(cache_ptr->coll_write_list, entry_ptr, &entry_ptr->addr) < 0) @@ -6260,7 +6411,15 @@ H5C__flush_single_entry(H5F_t *f, hid_t dxpl_id, H5C_cache_entry_t *entry_ptr, } /* end if */ else #endif /* H5_HAVE_PARALLEL */ - if(H5F_block_write(f, entry_ptr->type->mem_type, entry_ptr->addr, entry_ptr->size, dxpl_id, entry_ptr->image_ptr) < 0) + + if(entry_ptr->prefetched) { + HDassert(entry_ptr->type->id == H5AC_PREFETCHED_ENTRY_ID); + mem_type = cache_ptr->class_table_ptr[entry_ptr->prefetch_type_id]->mem_type; + } /* end if */ + else + mem_type = entry_ptr->type->mem_type; + + if(H5F_block_write(f, mem_type, entry_ptr->addr, entry_ptr->size, dxpl_id, entry_ptr->image_ptr) < 0) HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "Can't write image to file.") } /* end if */ @@ -6405,10 +6564,29 @@ H5C__flush_single_entry(H5F_t *f, hid_t dxpl_id, H5C_cache_entry_t *entry_ptr, /* Sanity check */ HDassert(0 == entry_ptr->flush_dep_nparents); - /* Start by freeing the buffer for the on disk image */ - if(entry_ptr->image_ptr != NULL) + /* if both suppress_image_entry_frees and entry_ptr->include_in_image + * are true, simply set entry_ptr->image_ptr to NULL, as we have + * another pointer to the buffer in an instance of H5C_image_entry_t + * in cache_ptr->image_entries. + * + * Otherwise, free the buffer if it exists. + */ + if(suppress_image_entry_frees && entry_ptr->include_in_image) + entry_ptr->image_ptr = NULL; + else if(entry_ptr->image_ptr != NULL) entry_ptr->image_ptr = H5MM_xfree(entry_ptr->image_ptr); + /* If the entry is not a prefetched entry, verify that the flush + * dependency parents addresses array has been transfered. + * + * If the entry is prefetched, the free_isr routine will dispose of + * the flush dependency parents adresses array if necessary. + */ + if(!entry_ptr->prefetched) { + HDassert(0 == entry_ptr->fd_parent_count); + HDassert(NULL == entry_ptr->fd_parent_addrs); + } /* end if */ + /* Check whether we should free the space in the file that * the entry occupies */ @@ -6884,6 +7062,22 @@ H5C_load_entry(H5F_t * f, entry->coll_prev = NULL; #endif /* H5_HAVE_PARALLEL */ + /* initialize cache image related fields */ + entry->include_in_image = FALSE; + entry->lru_rank = 0; + entry->image_dirty = FALSE; + entry->fd_parent_count = 0; + entry->fd_parent_addrs = NULL; + entry->fd_child_count = 0; + entry->fd_dirty_child_count = 0; + entry->image_fd_height = 0; + entry->prefetched = FALSE; + entry->prefetch_type_id = 0; + entry->age = 0; +#ifndef NDEBUG /* debugging field */ + entry->serialization_count = 0; +#endif /* NDEBUG */ + H5C__RESET_CACHE_ENTRY_STATS(entry); ret_value = thing; @@ -6904,7 +7098,7 @@ done: /*------------------------------------------------------------------------- * - * Function: H5C_make_space_in_cache + * Function: H5C__make_space_in_cache * * Purpose: Attempt to evict cache entries until the index_size * is at least needed_space below max_cache_size. @@ -6970,7 +7164,7 @@ done: *------------------------------------------------------------------------- */ herr_t -H5C_make_space_in_cache(H5F_t *f, hid_t dxpl_id, size_t space_needed, +H5C__make_space_in_cache(H5F_t *f, hid_t dxpl_id, size_t space_needed, hbool_t write_permitted) { H5C_t * cache_ptr = f->shared->cache; @@ -6990,7 +7184,7 @@ H5C_make_space_in_cache(H5F_t *f, hid_t dxpl_id, size_t space_needed, uint32_t num_corked_entries = 0; herr_t ret_value = SUCCEED; /* Return value */ - FUNC_ENTER_NOAPI_NOINIT + FUNC_ENTER_PACKAGE /* Sanity checks */ HDassert(f); @@ -7260,7 +7454,7 @@ H5C_make_space_in_cache(H5F_t *f, hid_t dxpl_id, size_t space_needed, done: FUNC_LEAVE_NOAPI(ret_value) -} /* H5C_make_space_in_cache() */ +} /* H5C__make_space_in_cache() */ /*------------------------------------------------------------------------- @@ -8083,6 +8277,10 @@ H5C__assert_flush_dep_nocycle(const H5C_cache_entry_t * entry, * are about to delete the entry from the cache (i.e. on a * flush destroy). * + * Note: This routine is very similar to H5C__serialize_single_entry + * and changes to one should probably be reflected in the other. + * Ideally, one should be eliminated. + * * Return: Non-negative on success/Negative on failure * * Programmer: Mohamad Chaarawi @@ -8117,8 +8315,7 @@ H5C__generate_image(H5F_t *f, H5C_t *cache_ptr, H5C_cache_entry_t *entry_ptr, /* Check for any flags set in the pre-serialize callback */ if(serialize_flags != H5C__SERIALIZE_NO_FLAGS_SET) { /* Check for unexpected flags from serialize callback */ - if(serialize_flags & ~(H5C__SERIALIZE_RESIZED_FLAG | - H5C__SERIALIZE_MOVED_FLAG)) + if(serialize_flags & ~(H5C__SERIALIZE_RESIZED_FLAG | H5C__SERIALIZE_MOVED_FLAG)) HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unknown serialize flag(s)") #ifdef H5_HAVE_PARALLEL @@ -8165,9 +8362,8 @@ H5C__generate_image(H5F_t *f, H5C_t *cache_ptr, H5C_cache_entry_t *entry_ptr, /* Update statistics for resizing the entry */ H5C__UPDATE_STATS_FOR_ENTRY_SIZE_CHANGE(cache_ptr, entry_ptr, new_len); - /* update the hash table for the size change */ - H5C__UPDATE_INDEX_FOR_SIZE_CHANGE(cache_ptr, entry_ptr->size, \ - new_len, entry_ptr, !(entry_ptr->is_dirty)); + /* Update the hash table for the size change */ + H5C__UPDATE_INDEX_FOR_SIZE_CHANGE(cache_ptr, entry_ptr->size, new_len, entry_ptr, !(entry_ptr->is_dirty)); /* The entry can't be protected since we are in the process of * flushing it. Thus we must update the replacement policy data @@ -8180,10 +8376,11 @@ H5C__generate_image(H5F_t *f, H5C_t *cache_ptr, H5C_cache_entry_t *entry_ptr, * for the flush or flush destroy yet, the entry should * be in the slist. Thus update it for the size change. */ + HDassert(entry_ptr->is_dirty); HDassert(entry_ptr->in_slist); H5C__UPDATE_SLIST_FOR_SIZE_CHANGE(cache_ptr, entry_ptr->size, new_len); - /* finally, update the entry for its new size */ + /* Finally, update the entry for its new size */ entry_ptr->size = new_len; } /* end if */ @@ -8200,10 +8397,10 @@ H5C__generate_image(H5F_t *f, H5C_t *cache_ptr, H5C_cache_entry_t *entry_ptr, H5C__DELETE_FROM_INDEX(cache_ptr, entry_ptr, FAIL); H5C__REMOVE_ENTRY_FROM_SLIST(cache_ptr, entry_ptr, FALSE); - /* update the entry for its new address */ + /* Update the entry for its new address */ entry_ptr->addr = new_addr; - /* and then reinsert in the index and slist */ + /* And then reinsert in the index and slist */ H5C__INSERT_IN_INDEX(cache_ptr, entry_ptr, FAIL); H5C__INSERT_ENTRY_IN_SLIST(cache_ptr, entry_ptr, FAIL); } /* end if */ |