tests: Add changelog api tests

updates: bz#1193929
Change-Id: Iee9aab8140882069165621189741f189fb2cc884
Signed-off-by: Kotresh HR <khiremat@redhat.com>

2 files changed, 135 insertions, 0 deletions

diff --git a/tests/basic/changelog/changelog-api.t b/tests/basic/changelog/changelog-api.t
new file mode 100644
index 00000000000..516c2f2f60d
--- /dev/null
+++ b/tests/basic/changelog/changelog-api.t
@@ -0,0 +1,37 @@
+#!/bin/bash
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../env.rc
+
+cleanup;
+
+CHANGELOG_BIN_PATH=$(dirname $0)/../../utils/changelog
+build_tester $CHANGELOG_BIN_PATH/test-changelog-api.c -lgfchangelog
+
+CHANGELOG_PATH_0="$B0/${V0}0/.glusterfs/changelogs"
+ROLLOVER_TIME=2
+
+TEST glusterd
+TEST pidof glusterd
+
+TEST $CLI volume create $V0 $H0:$B0/${V0}0
+TEST $CLI volume set $V0 changelog.changelog on
+TEST $CLI volume set $V0 changelog.rollover-time $ROLLOVER_TIME
+TEST $CLI volume start $V0
+
+TEST $GFS --volfile-id=$V0 --volfile-server=$H0 $M0;
+
+sleep 3;
+
+#Listen to changelog journal notifcations
+$CHANGELOG_BIN_PATH/test-changelog-api &
+for i in {1..12};do echo "data" > $M0/file$i 2>/dev/null; sleep 1;done &
+
+#Wait for changelogs to be in .processed directory
+sleep 12
+
+EXPECT "Y" processed_changelogs "/tmp/scratch_v1/.processed"
+TEST rm $CHANGELOG_BIN_PATH/test-changelog-api
+rm -rf /tmp/scratch_v1
+
+cleanup;
diff --git a/tests/utils/changelog/test-changelog-api.c b/tests/utils/changelog/test-changelog-api.c
new file mode 100644
index 00000000000..f4eb066b630
--- /dev/null
+++ b/tests/utils/changelog/test-changelog-api.c
@@ -0,0 +1,98 @@
+/*
+   Copyright (c) 2019 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 5 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"
+
+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) {
+        printf("-1");
+        fflush(stdout);
+        return -1;
+    }
+
+    /* get changes for brick "/d/backends/patchy0" */
+    ret = gf_changelog_register("/d/backends/patchy0", "/tmp/scratch_v1",
+                                "/var/log/glusterfs/changes.log", 9, 5);
+    if (ret) {
+        printf("-2");
+        fflush(stdout);
+        return -1;
+    }
+
+    while (1) {
+        i = 0;
+        nr_changes = gf_changelog_scan();
+        if (nr_changes < 0) {
+            printf("-4");
+            fflush(stdout);
+            return -1;
+        }
+
+        if (nr_changes == 0)
+            goto next;
+
+        while ((changes = gf_changelog_next_change(fbuf, PATH_MAX)) > 0) {
+            /* process changelog */
+            /* ... */
+            /* ... */
+            /* ... */
+            /* done processing */
+
+            ret = gf_changelog_done(fbuf);
+            if (ret) {
+                printf("-5");
+                fflush(stdout);
+                return -1;
+            }
+        }
+
+        if (changes == -1) {
+            printf("-6");
+            fflush(stdout);
+            return -1;
+        }
+
+    next:
+        sleep(2);
+    }
+
+out:
+    printf("0");
+    fflush(stdout);
+    return ret;
+}