ctdb-tests: Add torture test for g_lock functions

Signed-off-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>

diff --git a/ctdb/tests/src/g_lock_loop.c b/ctdb/tests/src/g_lock_loop.c
new file mode 100644 (file)
index 0000000..688ac0b
--- /dev/null
+++ b/ctdb/tests/src/g_lock_loop.c
@@ -0,0 +1,271 @@
+/*
+   simple ctdb benchmark for g_lock operations
+
+   Copyright (C) Amitay Isaacs  2016
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "system/network.h"
+
+#include "lib/util/tevent_unix.h"
+#include "lib/util/debug.h"
+
+#include "protocol/protocol_api.h"
+#include "client/client.h"
+#include "tests/src/test_options.h"
+#include "tests/src/cluster_wait.h"
+
+#define TESTKEY "testkey"
+
+struct glock_loop_state {
+       struct tevent_context *ev;
+       struct ctdb_client_context *client;
+       struct ctdb_db_context *db;
+       int num_nodes;
+       int timelimit;
+       uint32_t pnn;
+       uint32_t counter;
+       struct ctdb_server_id sid;
+       const char *key;
+};
+
+static void glock_loop_start(struct tevent_req *subreq);
+static void glock_loop_locked(struct tevent_req *subreq);
+static void glock_loop_unlocked(struct tevent_req *subreq);
+static void glock_loop_finish(struct tevent_req *subreq);
+
+static struct tevent_req *glock_loop_send(
+                               TALLOC_CTX *mem_ctx,
+                               struct tevent_context *ev,
+                               struct ctdb_client_context *client,
+                               struct ctdb_db_context *db,
+                               int num_nodes, int timelimit)
+{
+       struct tevent_req *req, *subreq;
+       struct glock_loop_state *state;
+
+       req = tevent_req_create(mem_ctx, &state,
+                               struct glock_loop_state);
+       if (req == NULL) {
+               return NULL;
+       }
+
+       state->ev = ev;
+       state->client = client;
+       state->db = db;
+       state->num_nodes = num_nodes;
+       state->timelimit = timelimit;
+       state->pnn = ctdb_client_pnn(client);
+       state->counter = 0;
+       state->sid = ctdb_client_get_server_id(client, 1);
+       state->key = TESTKEY;
+
+       subreq = cluster_wait_send(state, state->ev, state->client,
+                                  state->num_nodes);
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+       tevent_req_set_callback(subreq, glock_loop_start, req);
+
+       return req;
+}
+
+static void glock_loop_start(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(
+               subreq, struct tevent_req);
+       struct glock_loop_state *state = tevent_req_data(
+               req, struct glock_loop_state);
+       bool status;
+       int ret;
+
+       status = cluster_wait_recv(subreq, &ret);
+       TALLOC_FREE(subreq);
+       if (! status) {
+               tevent_req_error(req, ret);
+               return;
+       }
+
+       subreq = ctdb_g_lock_lock_send(state, state->ev, state->client,
+                                      state->db, state->key, &state->sid,
+                                      false);
+       if (tevent_req_nomem(subreq, req)) {
+               return;
+       }
+       tevent_req_set_callback(subreq, glock_loop_locked, req);
+
+       subreq = tevent_wakeup_send(state, state->ev,
+                                   tevent_timeval_current_ofs(
+                                           state->timelimit, 0));
+       if (tevent_req_nomem(subreq, req)) {
+               return;
+       }
+       tevent_req_set_callback(subreq, glock_loop_finish, req);
+}
+
+static void glock_loop_locked(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(
+               subreq, struct tevent_req);
+       struct glock_loop_state *state = tevent_req_data(
+               req, struct glock_loop_state);
+       int ret;
+       bool status;
+
+       status = ctdb_g_lock_lock_recv(subreq, &ret);
+       TALLOC_FREE(subreq);
+       if (! status) {
+               fprintf(stderr, "g_lock_lock failed\n");
+               tevent_req_error(req, ret);
+               return;
+       }
+
+       state->counter += 1;
+
+       subreq = ctdb_g_lock_unlock_send(state, state->ev, state->client,
+                                        state->db, state->key, state->sid);
+       if (tevent_req_nomem(subreq, req)) {
+               return;
+       }
+       tevent_req_set_callback(subreq, glock_loop_unlocked, req);
+}
+
+static void glock_loop_unlocked(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(
+               subreq, struct tevent_req);
+       struct glock_loop_state *state = tevent_req_data(
+               req, struct glock_loop_state);
+       int ret;
+       bool status;
+
+       status = ctdb_g_lock_unlock_recv(subreq, &ret);
+       TALLOC_FREE(subreq);
+       if (! status) {
+               fprintf(stderr, "g_lock_unlock failed\n");
+               tevent_req_error(req, ret);
+               return;
+       }
+
+       subreq = ctdb_g_lock_lock_send(state, state->ev, state->client,
+                                      state->db, state->key, &state->sid,
+                                      false);
+       if (tevent_req_nomem(subreq, req)) {
+               return;
+       }
+       tevent_req_set_callback(subreq, glock_loop_locked, req);
+}
+
+static void glock_loop_finish(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(
+               subreq, struct tevent_req);
+       struct glock_loop_state *state = tevent_req_data(
+               req, struct glock_loop_state);
+       bool status;
+
+       status = tevent_wakeup_recv(subreq);
+       TALLOC_FREE(subreq);
+       if (! status) {
+               tevent_req_error(req, EIO);
+               return;
+       }
+
+       printf("PNN:%u counter:%u\n", state->pnn, state->counter);
+
+       tevent_req_done(req);
+}
+
+static bool glock_loop_recv(struct tevent_req *req, int *perr)
+{
+       int err;
+
+       if (tevent_req_is_unix_error(req, &err)) {
+               if (perr != NULL) {
+                       *perr = err;
+               }
+               return false;
+       }
+       return true;
+}
+
+int main(int argc, const char *argv[])
+{
+       const struct test_options *opts;
+       TALLOC_CTX *mem_ctx;
+       struct tevent_context *ev;
+       struct ctdb_client_context *client;
+       struct ctdb_db_context *ctdb_db;
+       struct tevent_req *req;
+       int ret;
+       bool status;
+
+       status = process_options_basic(argc, argv, &opts);
+       if (! status) {
+               exit(1);
+       }
+
+       mem_ctx = talloc_new(NULL);
+       if (mem_ctx == NULL) {
+               fprintf(stderr, "Memory allocation error\n");
+               exit(1);
+       }
+
+       ev = tevent_context_init(mem_ctx);
+       if (ev == NULL) {
+               fprintf(stderr, "Memory allocation error\n");
+               exit(1);
+       }
+
+       setup_logging("glock_loop", DEBUG_STDERR);
+
+       ret = ctdb_client_init(mem_ctx, ev, opts->socket, &client);
+       if (ret != 0) {
+               fprintf(stderr, "Failed to initialize client, %s\n",
+                       strerror(ret));
+               exit(1);
+       }
+
+       if (! ctdb_recovery_wait(ev, client)) {
+               fprintf(stderr, "Memory allocation error\n");
+               exit(1);
+       }
+
+       ret = ctdb_attach(ev, client, tevent_timeval_zero(), "g_lock.tdb",
+                         0, &ctdb_db);
+       if (ret != 0) {
+               fprintf(stderr, "Failed to attach to g_lock.tdb\n");
+               exit(1);
+       }
+
+       req = glock_loop_send(mem_ctx, ev, client, ctdb_db,
+                                   opts->num_nodes, opts->timelimit);
+       if (req == NULL) {
+               fprintf(stderr, "Memory allocation error\n");
+               exit(1);
+       }
+
+       tevent_req_poll(req, ev);
+
+       status = glock_loop_recv(req, &ret);
+       if (! status) {
+               fprintf(stderr, "g_lock loop test failed\n");
+               exit(1);
+       }
+
+       talloc_free(mem_ctx);
+       return 0;
+}

diff --git a/ctdb/wscript b/ctdb/wscript
index 2f52f3ace9f50d6f9ff4c597a207113df772da80..25ba19ccb8d63c3cf02f9ea8e745aa1adaa0e23c 100755 (executable)
--- a/ctdb/wscript
+++ b/ctdb/wscript
@@ -709,6 +709,20 @@ def build(bld):
                         includes='include',
                         deps='replace popt talloc tevent tdb')
 
+    ctdb_tests = [
+        'g_lock_loop'
+    ]
+
+    for target in ctdb_tests:
+        src = 'tests/src/' + target + '.c'
+
+        bld.SAMBA_BINARY(target,
+                         source=src,
+                         includes='include',
+                         deps='''ctdb-client2 ctdb-protocol ctdb-util
+                                 samba-util ctdb-tests-common''',
+                         install_path='${CTDB_TEST_LIBDIR}')
+
     bld.SAMBA_BINARY('ctdb_takeover_tests',
                      source='tests/src/ctdb_takeover_tests.c',
                      deps='''replace popt tdb tevent talloc ctdb-system