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ctdb-tests: Add a sock_daemon test for PID file contention

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Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This commit is contained in:
Martin Schwenke 2017-08-16 13:31:04 +10:00 committed by Amitay Isaacs
parent b67cc00c93
commit 4cb560386a
2 changed files with 86 additions and 0 deletions
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7
ctdb/tests/cunit/sock_daemon_test_001.sh
View File

@ -65,3 +65,10 @@ test6[PID]: daemon started, pid=PID
test6[PID]: Shutting down
EOF
unit_test sock_daemon_test "$pidfile" "$sockpath" 6
ok <<EOF
test7[PID]: daemon started, pid=PID
test7[PID]: Received signal 15
test7[PID]: Shutting down
EOF
unit_test sock_daemon_test "$pidfile" "$sockpath" 7

79
ctdb/tests/src/sock_daemon_test.c
View File

@ -990,6 +990,81 @@ static void test6(TALLOC_CTX *mem_ctx, const char *pidfile,
assert(pid != -1);
}
/*
* test7
*
* Start daemon twice, confirm PID file contention
*/
static void test7(TALLOC_CTX *mem_ctx, const char *pidfile,
const char *sockpath)
{
struct stat st;
int fd[2];
pid_t pid, pid2;
int ret;
struct tevent_context *ev;
struct sock_daemon_context *sockd;
ssize_t n;
ret = pipe(fd);
assert(ret == 0);
pid = fork();
assert(pid != -1);
if (pid == 0) {
close(fd[0]);
ev = tevent_context_init(mem_ctx);
assert(ev != NULL);
/* Reuse test2 funcs for the startup synchronisation */
ret = sock_daemon_setup(mem_ctx, "test7", "file:", "NOTICE",
&test2_funcs, &fd[1], &sockd);
assert(ret == 0);
ret = sock_daemon_run(ev, sockd, pidfile, -1);
assert(ret == EINTR);
exit(0);
}
close(fd[1]);
n = read(fd[0], &ret, sizeof(ret));
assert(n == sizeof(ret));
assert(ret == 1);
ret = stat(pidfile, &st);
assert(ret == 0);
assert(S_ISREG(st.st_mode));
ev = tevent_context_init(mem_ctx);
assert(ev != NULL);
/* Reuse test2 funcs for the startup synchronisation */
ret = sock_daemon_setup(mem_ctx, "test7-parent", "file:", "NOTICE",
&test2_funcs, &fd[1], &sockd);
assert(ret == 0);
ret = sock_daemon_run(ev, sockd, pidfile, -1);
assert(ret == EEXIST);
ret = kill(pid, SIGTERM);
assert(ret == 0);
n = read(fd[0], &ret, sizeof(ret));
assert(n == sizeof(ret));
assert(ret == 3);
pid2 = waitpid(pid, &ret, 0);
assert(pid2 == pid);
assert(WEXITSTATUS(ret) == 0);
close(fd[0]);
}
int main(int argc, const char **argv)
{
TALLOC_CTX *mem_ctx;
@ -1033,6 +1108,10 @@ int main(int argc, const char **argv)
test6(mem_ctx, pidfile, sockpath);
break;
case 7:
test7(mem_ctx, pidfile, sockpath);
break;
default:
fprintf(stderr, "Unknown test number %d\n", num);
}