diff options
Diffstat (limited to 'src/H5PBprivate.h')
| -rw-r--r-- | src/H5PBprivate.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/H5PBprivate.h b/src/H5PBprivate.h index 6b879c7..32e681e 100644 --- a/src/H5PBprivate.h +++ b/src/H5PBprivate.h @@ -249,6 +249,9 @@ typedef struct H5PB_entry_t H5PB_entry_t; * * FIELDS SUPPORTING VFD SWMR: * + * If the file is opened in VFD SWMR mode (i.e. vfd_swmr == TRUE), all + * raw data I/O must be passed through to the HDF5 file + * * If the file is opened as a VFD SWMR writer (i.e. vfd_swmr_writer == TRUE), * the page buffer must retain the data necessary to update the metadata * file at the end of each tick, and also delay writes as necessary so as @@ -285,8 +288,12 @@ typedef struct H5PB_entry_t H5PB_entry_t; * The remainder of this sections contains discussions of the fields and * data structures used to support the above operations. * + * vfd_swmr: Boolean flag that is set to TRUE IFF the file is opened + * in VFD SWMR mode -- either reader or writer. This field + * is used to exclude raw data from the page buffer. + * * vfd_swmr_writer: Boolean flag that is set to TRUE iff the file is - * the file is opened in VFD SWMR mode. The remaining + * is opened in VFD SWMR writer mode. The remaining * VFD SWMR fields are defined iff vfd_swmr_writer is TRUE. * * mpmde_count: int64_t containing the number of multi-page metadata @@ -528,6 +535,16 @@ typedef struct H5PB_entry_t H5PB_entry_t; * total_dwl_ins_depth: int64_t containing the total insertion depth * required to maintain the odering invarient on the * delayed write list. + * + * md_read_splits: int64_t containing the number of metadata reads that + * are split into two or three sub-reads to manage the + * case in which a group of metadata cache clients + * sub-allocate entries from a single file space allocationn. + * + * md_write_splits: int64_t containing the number of metadata writes that + * are split into two or three sub-writes to manage the + * case in which a group of metadata cache clients + * sub-allocate entries from a single file space allocationn. * ******************************************************************************/ @@ -578,6 +595,7 @@ typedef struct H5PB_t { /* Fields for VFD SWMR operations: */ + hbool_t vfd_swmr; hbool_t vfd_swmr_writer; int64_t mpmde_count; uint64_t cur_tick; @@ -645,6 +663,8 @@ typedef struct H5PB_t { int64_t max_dwl_len; int64_t max_dwl_size; int64_t total_dwl_ins_depth; + int64_t md_read_splits; + int64_t md_write_splits; } H5PB_t; @@ -670,6 +690,7 @@ H5_DLL herr_t H5PB_add_new_page(H5F_shared_t *, H5FD_mem_t, haddr_t); H5_DLL herr_t H5PB_update_entry(H5PB_t *, haddr_t, size_t, const void *); H5_DLL herr_t H5PB_remove_entry(H5F_shared_t *, haddr_t); + H5_DLL herr_t H5PB_remove_entries(H5F_shared_t *, haddr_t, hsize_t); H5_DLL herr_t H5PB_read(H5F_shared_t *, H5FD_mem_t, haddr_t, |