diff options
Diffstat (limited to 'src/H5EApkg.h')
| -rw-r--r-- | src/H5EApkg.h | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/src/H5EApkg.h b/src/H5EApkg.h index 70e6a55..093403c 100644 --- a/src/H5EApkg.h +++ b/src/H5EApkg.h @@ -206,6 +206,28 @@ typedef struct H5EA_hdr_t { /* Client information (not stored) */ void *cb_ctx; /* Callback context */ + + /* SWMR / Flush dependency information (not stored) */ + hbool_t swmr_write; /* Flag indicating the file is opened with SWMR-write access */ + H5AC_proxy_entry_t *top_proxy; /* 'Top' proxy cache entry for all array entries */ + void *parent; /* Pointer to 'top' proxy flush dependency + * parent, if it exists, otherwise NULL. + * If the extensible array is being used + * to index a chunked dataset and the + * dataset metadata is modified by a + * SWMR writer, this field will be set + * equal to the object header proxy + * that is the flush dependency parent + * of the extensible array header. + * + * The field is used to avoid duplicate + * setups of the flush dependency + * relationship, and to allow the + * extensible array header to destroy + * the flush dependency on receipt of + * an eviction notification from the + * metadata cache. + */ } H5EA_hdr_t; /* The extensible array index block information */ @@ -223,6 +245,9 @@ typedef struct H5EA_iblock_t { haddr_t addr; /* Address of this index block on disk */ size_t size; /* Size of index block on disk */ + /* SWMR / Flush dependency information (not stored) */ + H5AC_proxy_entry_t *top_proxy; /* "Top" proxy cache entry for all array entries */ + /* Computed/cached values (not stored) */ size_t nsblks; /* # of super blocks whose data block addresses are in index block */ size_t ndblk_addrs; /* Number of pointers to data blocks in index block */ @@ -244,8 +269,9 @@ typedef struct H5EA_sblock_t { haddr_t addr; /* Address of this index block on disk */ size_t size; /* Size of index block on disk */ - /* Flush dependency information (not stored) */ + /* SWMR / Flush dependency information (not stored) */ hbool_t has_hdr_depend; /* Whether this object has a flush dependency on the header */ + H5AC_proxy_entry_t *top_proxy; /* "Top" proxy cache entry for all array entries */ H5EA_iblock_t *parent; /* Parent object for super block (index block) */ /* Computed/cached values (not stored) */ @@ -271,8 +297,9 @@ typedef struct H5EA_dblock_t { haddr_t addr; /* Address of this data block on disk */ size_t size; /* Size of data block on disk */ - /* Flush dependency information (not stored) */ + /* SWMR / Flush dependency information (not stored) */ hbool_t has_hdr_depend; /* Whether this object has a flush dependency on the header */ + H5AC_proxy_entry_t *top_proxy; /* 'Top' proxy cache entry for all array entries */ void *parent; /* Parent object for data block (index or super block) */ /* Computed/cached values (not stored) */ @@ -293,8 +320,9 @@ typedef struct H5EA_dbk_page_t { haddr_t addr; /* Address of this data block page on disk */ size_t size; /* Size of data block page on disk */ - /* Flush dependency information (not stored) */ + /* SWMR / Flush dependency information (not stored) */ hbool_t has_hdr_depend; /* Whether this object has a flush dependency on the header */ + H5AC_proxy_entry_t *top_proxy; /* "Top" proxy cache entry for all array entries */ H5EA_sblock_t *parent; /* Parent object for data block page (super block) */ /* Computed/cached values (not stored) */ |