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authorDana Robinson <derobins@hdfgroup.org>2014-04-09 03:35:16 (GMT)
committerDana Robinson <derobins@hdfgroup.org>2014-04-09 03:35:16 (GMT)
commit5ae7ad342d42a9d6384edc3e465f57fa35ada5de (patch)
treed31e668a0fc35d221aa6c446ad52c007d10f465a /src/H5Fprivate.h
parent385b4b40ae69ca45be476472ce1c8e5391a63caa (diff)
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[svn-r24993] Purpose:
Adds write tracking to the core VFD, which can be configured via the H5Pset/get_core_write_tracking() API call. When enabled and writing to the backing store is enabled, this feature will track writes and only write out the changed bytes on flush/close. Tested on: 32-bit LE linux (jam) w/ Fortran and C++ 64-bit BE linux (ostrich) 64-bit Darwin 12.5.0 (kite) All were tested using the core VFD w/ paging on (core_paged in the VFD list). Make check-vfd was also tested on jam.
Diffstat (limited to 'src/H5Fprivate.h')
-rw-r--r--src/H5Fprivate.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/H5Fprivate.h b/src/H5Fprivate.h
index 2690311..cfecf98 100644
--- a/src/H5Fprivate.h
+++ b/src/H5Fprivate.h
@@ -462,6 +462,8 @@ typedef struct H5F_blk_aggr_t H5F_blk_aggr_t;
#define H5F_ACS_WANT_POSIX_FD_NAME "want_posix_fd" /* Internal: query the file descriptor from the core VFD, instead of the memory address */
#define H5F_ACS_EFC_SIZE_NAME "efc_size" /* Size of external file cache */
#define H5F_ACS_FILE_IMAGE_INFO_NAME "file_image_info" /* struct containing initial file image and callback info */
+#define H5F_ACS_CORE_WRITE_TRACKING_FLAG_NAME "core_write_tracking_flag" /* Whether or not core VFD backing store write tracking is enabled */
+#define H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_NAME "core_write_tracking_page_size" /* The page size in kiB when core VFD write tracking is enabled */
/* ======================== File Mount properties ====================*/
#define H5F_MNT_SYM_LOCAL_NAME "local" /* Whether absolute symlinks local to file. */