1 files changed, 270 insertions, 0 deletions
diff --git a/ctdb/tests/src/g_lock_loop.c b/ctdb/tests/src/g_lock_loop.c
new file mode 100644
index 0000000..3b84241
--- /dev/null
+++ b/ctdb/tests/src/g_lock_loop.c
@@ -0,0 +1,270 @@
+/*
+   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;
+
+	setup_logging("glock_loop", DEBUG_STDERR);
+
+	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);
+	}
+
+	ret = ctdb_client_init(mem_ctx, ev, opts->socket, &client);
+	if (ret != 0) {
+		fprintf(stderr, "Failed to initialize client, ret=%d\n", 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;
+}