1 files changed, 93 insertions, 0 deletions
diff --git a/xlators/features/changelog/lib/examples/c/get-changes.c b/xlators/features/changelog/lib/examples/c/get-changes.c
new file mode 100644
index 00000000000..8bc651c24a4
--- /dev/null
+++ b/xlators/features/changelog/lib/examples/c/get-changes.c
@@ -0,0 +1,93 @@
+/*
+   Copyright (c) 2013 Red Hat, Inc. <http://www.redhat.com>
+   This file is part of GlusterFS.
+
+   This file is licensed to you under your choice of the GNU Lesser
+   General Public License, version 3 or any later version (LGPLv3 or
+   later), or the GNU General Public License, version 2 (GPLv2), in all
+   cases as published by the Free Software Foundation.
+*/
+
+/**
+ * get set of new changes every 10 seconds (just print the file names)
+ *
+ * Compile it using:
+ *  gcc -o getchanges `pkg-config --cflags libgfchangelog` get-changes.c \
+ *  `pkg-config --libs libgfchangelog`
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/un.h>
+#include <limits.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <errno.h>
+
+#include "changelog.h"
+
+#define handle_error(fn) printf("%s (reason: %s)\n", fn, strerror(errno))
+
+int
+main(int argc, char **argv)
+{
+    int i = 0;
+    int ret = 0;
+    ssize_t nr_changes = 0;
+    ssize_t changes = 0;
+    char fbuf[PATH_MAX] = {
+        0,
+    };
+
+    ret = gf_changelog_init(NULL);
+    if (ret) {
+        handle_error("Init failed");
+        goto out;
+    }
+
+    /* get changes for brick "/home/vshankar/export/yow/yow-1" */
+    ret = gf_changelog_register("/export/z1/zwoop", "/tmp/scratch",
+                                "/tmp/change.log", 9, 5);
+    if (ret) {
+        handle_error("register failed");
+        goto out;
+    }
+
+    while (1) {
+        i = 0;
+        nr_changes = gf_changelog_scan();
+        if (nr_changes < 0) {
+            handle_error("scan(): ");
+            break;
+        }
+
+        if (nr_changes == 0)
+            goto next;
+
+        printf("Got %ld changelog files\n", nr_changes);
+
+        while ((changes = gf_changelog_next_change(fbuf, PATH_MAX)) > 0) {
+            printf("changelog file [%d]: %s\n", ++i, fbuf);
+
+            /* process changelog */
+            /* ... */
+            /* ... */
+            /* ... */
+            /* done processing */
+
+            ret = gf_changelog_done(fbuf);
+            if (ret)
+                handle_error("gf_changelog_done");
+        }
+
+        if (changes == -1)
+            handle_error("gf_changelog_next_change");
+
+    next:
+        sleep(10);
+    }
+
+out:
+    return ret;
+}