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authorDana Robinson <derobins@hdfgroup.org>2022-04-13 21:17:29 (GMT)
committerDana Robinson <derobins@hdfgroup.org>2022-04-13 21:17:29 (GMT)
commitcabc39c3e197e2591449d2604bfee26465fb60e1 (patch)
treed5f39f5f5965584bf9bf49646a2af617adfd3e4e /doxygen/examples/H5Pset_object_flush_cb.c
parent7355f4c505092a7a85474b47f18d5206028e2c95 (diff)
parentab69f5df770ee3cc6cd6c81d905a5317b894a002 (diff)
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Merge branch 'develop' into feature/coding_standardsfeature/coding_standards
Diffstat (limited to 'doxygen/examples/H5Pset_object_flush_cb.c')
-rw-r--r--doxygen/examples/H5Pset_object_flush_cb.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/doxygen/examples/H5Pset_object_flush_cb.c b/doxygen/examples/H5Pset_object_flush_cb.c
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+++ b/doxygen/examples/H5Pset_object_flush_cb.c
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+hid_t file_id, fapl_id;
+hid_t dataset_id, dapl_id;
+unsigned counter;
+
+/* Create a copy of the file access property list */
+fapl_id = H5Pcreate(H5P_FILE_ACCESS);
+
+/* Set up the object flush property values */
+/* flush_cb: callback function to invoke when an object flushes (see below) */
+/* counter: user data to pass along to the callback function */
+H5Pset_object_flush_cb(fapl_id, flush_cb, &counter);
+
+/* Open the file */
+file_id = H5Fopen(FILE, H5F_ACC_RDWR, H5P_DEFAULT);
+
+/* Create a group */
+gid = H5Gcreate2(fid, “group”, H5P_DEFAULT, H5P_DEFAULT_H5P_DEFAULT);
+
+/* Open a dataset */
+dataset_id = H5Dopen2(file_id, DATASET, H5P_DEFAULT);
+
+/* The flush will invoke flush_cb() with counter */
+H5Dflush(dataset_id);
+/* counter will be equal to 1 */
+
+/* ... */
+
+/* The flush will invoke flush_cb() with counter */
+H5Gflush(gid);
+/* counter will be equal to 2 */
+
+/* ... */
+
+/* The callback function for object flush property */
+static herr_t
+flush_cb(hid_t obj_id, void *_udata)
+{
+ unsigned *flush_ct = (unsigned *)_udata;
+ ++(*flush_ct);
+ return 0;
+}