--- /dev/null
+/*
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/types.h>
+#include <urcu.h>
+
+#include <tap/tap.h>
+
+#include <common/compat/errno.h>
+#include <bin/lttng-sessiond/session.h>
+#include <bin/lttng-sessiond/ust-app.h>
+#include <bin/lttng-sessiond/ht-cleanup.h>
+#include <bin/lttng-sessiond/health-sessiond.h>
+#include <bin/lttng-sessiond/thread.h>
+#include <common/sessiond-comm/sessiond-comm.h>
+#include <common/common.h>
+
+#define SESSION1 "test1"
+
+#define MAX_SESSIONS 10000
+#define RANDOM_STRING_LEN 11
+
+/* Number of TAP tests in this file */
+#define NUM_TESTS 11
+
+static struct ltt_session_list *session_list;
+
+static const char alphanum[] =
+ "0123456789"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz";
+static char random_string[RANDOM_STRING_LEN];
+
+/*
+ * Return random string of 10 characters.
+ * Not thread-safe.
+ */
+static char *get_random_string(void)
+{
+ int i;
+
+ for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
+ random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
+ }
+
+ random_string[RANDOM_STRING_LEN - 1] = '\0';
+
+ return random_string;
+}
+
+/*
+ * Return 0 if session name is found, else -1
+ */
+static int find_session_name(const char *name)
+{
+ struct ltt_session *iter;
+
+ cds_list_for_each_entry(iter, &session_list->head, list) {
+ if (strcmp(iter->name, name) == 0) {
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
+static int session_list_count(void)
+{
+ int count = 0;
+ struct ltt_session *iter;
+
+ cds_list_for_each_entry(iter, &session_list->head, list) {
+ count++;
+ }
+ return count;
+}
+
+/*
+ * Empty session list manually.
+ */
+static void empty_session_list(void)
+{
+ struct ltt_session *iter, *tmp;
+
+ session_lock_list();
+ cds_list_for_each_entry_safe(iter, tmp, &session_list->head, list) {
+ session_destroy(iter);
+ }
+ session_unlock_list();
+
+ /* Session list must be 0 */
+ LTTNG_ASSERT(!session_list_count());
+}
+
+/*
+ * Test creation of 1 session
+ */
+static int create_one_session(const char *name)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ struct ltt_session *session = NULL;
+
+ session_lock_list();
+ ret_code = session_create(name, geteuid(), getegid(), &session);
+ session_put(session);
+ if (ret_code == LTTNG_OK) {
+ /* Validate */
+ ret = find_session_name(name);
+ if (ret < 0) {
+ /* Session not found by name */
+ printf("session not found after creation\n");
+ ret = -1;
+ } else {
+ /* Success */
+ ret = 0;
+ }
+ } else {
+ if (ret_code == LTTNG_ERR_EXIST_SESS) {
+ printf("(session already exists) ");
+ }
+ ret = -1;
+ }
+
+ session_unlock_list();
+ return ret;
+}
+
+/*
+ * Test deletion of 1 session
+ */
+static int destroy_one_session(struct ltt_session *session)
+{
+ int ret;
+ char session_name[NAME_MAX];
+
+ strncpy(session_name, session->name, sizeof(session_name));
+ session_name[sizeof(session_name) - 1] = '\0';
+
+ session_destroy(session);
+ session_put(session);
+
+ ret = find_session_name(session_name);
+ if (ret < 0) {
+ /* Success, -1 means that the sesion is NOT found */
+ ret = 0;
+ } else {
+ /* Fail */
+ ret = -1;
+ }
+ return ret;
+}
+
+/*
+ * This test is supposed to fail at the second create call. If so, return 0 for
+ * test success, else -1.
+ */
+static int two_session_same_name(void)
+{
+ int ret;
+ struct ltt_session *sess;
+
+ ret = create_one_session(SESSION1);
+ if (ret < 0) {
+ /* Fail */
+ ret = -1;
+ goto end;
+ }
+
+ session_lock_list();
+ sess = session_find_by_name(SESSION1);
+ if (sess) {
+ /* Success */
+ session_put(sess);
+ session_unlock_list();
+ ret = 0;
+ goto end_unlock;
+ } else {
+ /* Fail */
+ ret = -1;
+ goto end_unlock;
+ }
+end_unlock:
+ session_unlock_list();
+end:
+ return ret;
+}
+
+static void test_session_list(void)
+{
+ session_list = session_get_list();
+ ok(session_list != NULL, "Session list: not NULL");
+}
+
+static void test_create_one_session(void)
+{
+ ok(create_one_session(SESSION1) == 0,
+ "Create session: %s",
+ SESSION1);
+}
+
+static void test_validate_session(void)
+{
+ struct ltt_session *tmp;
+
+ session_lock_list();
+ tmp = session_find_by_name(SESSION1);
+
+ ok(tmp != NULL,
+ "Validating session: session found");
+
+ if (tmp) {
+ ok(tmp->kernel_session == NULL &&
+ strlen(tmp->name),
+ "Validating session: basic sanity check");
+ } else {
+ skip(1, "Skipping session validation check as session was not found");
+ goto end;
+ }
+
+ session_lock(tmp);
+ session_unlock(tmp);
+ session_put(tmp);
+end:
+ session_unlock_list();
+}
+
+static void test_destroy_session(void)
+{
+ struct ltt_session *tmp;
+
+ session_lock_list();
+ tmp = session_find_by_name(SESSION1);
+
+ ok(tmp != NULL,
+ "Destroying session: session found");
+
+ if (tmp) {
+ ok(destroy_one_session(tmp) == 0,
+ "Destroying session: %s destroyed",
+ SESSION1);
+ } else {
+ skip(1, "Skipping session destruction as it was not found");
+ }
+ session_unlock_list();
+}
+
+static void test_duplicate_session(void)
+{
+ ok(two_session_same_name() == 0,
+ "Duplicate session creation");
+}
+
+static void test_session_name_generation(void)
+{
+ struct ltt_session *session = NULL;
+ enum lttng_error_code ret_code;
+ const char *expected_session_name_prefix = DEFAULT_SESSION_NAME;
+
+ session_lock_list();
+ ret_code = session_create(NULL, geteuid(), getegid(), &session);
+ ok(ret_code == LTTNG_OK,
+ "Create session with a NULL name (auto-generate a name)");
+ if (!session) {
+ skip(1, "Skipping session name generation tests as session_create() failed.");
+ goto end;
+ }
+ diag("Automatically-generated session name: %s", *session->name ?
+ session->name : "ERROR");
+ ok(*session->name && !strncmp(expected_session_name_prefix, session->name,
+ sizeof(DEFAULT_SESSION_NAME) - 1),
+ "Auto-generated session name starts with %s",
+ DEFAULT_SESSION_NAME);
+end:
+ session_put(session);
+ session_unlock_list();
+}
+
+static void test_large_session_number(void)
+{
+ int ret, i, failed = 0;
+ struct ltt_session *iter, *tmp;
+
+ for (i = 0; i < MAX_SESSIONS; i++) {
+ char *tmp_name = get_random_string();
+ ret = create_one_session(tmp_name);
+ if (ret < 0) {
+ diag("session %d (name: %s) creation failed", i, tmp_name);
+ ++failed;
+ }
+ }
+
+ ok(failed == 0,
+ "Large sessions number: created %u sessions",
+ MAX_SESSIONS);
+
+ failed = 0;
+
+ session_lock_list();
+ for (i = 0; i < MAX_SESSIONS; i++) {
+ cds_list_for_each_entry_safe(iter, tmp, &session_list->head, list) {
+ LTTNG_ASSERT(session_get(iter));
+ ret = destroy_one_session(iter);
+ if (ret < 0) {
+ diag("session %d destroy failed", i);
+ ++failed;
+ }
+ }
+ }
+ session_unlock_list();
+
+ ok(failed == 0 && session_list_count() == 0,
+ "Large sessions number: destroyed %u sessions",
+ MAX_SESSIONS);
+}
+
+int main(int argc, char **argv)
+{
+ struct lttng_thread *ht_cleanup_thread;
+
+ plan_tests(NUM_TESTS);
+
+ the_health_sessiond = health_app_create(NR_HEALTH_SESSIOND_TYPES);
+ ht_cleanup_thread = launch_ht_cleanup_thread();
+ LTTNG_ASSERT(ht_cleanup_thread);
+ lttng_thread_put(ht_cleanup_thread);
+
+ diag("Sessions unit tests");
+
+ rcu_register_thread();
+
+ test_session_list();
+
+ test_create_one_session();
+
+ test_validate_session();
+
+ test_destroy_session();
+
+ test_duplicate_session();
+
+ empty_session_list();
+
+ test_session_name_generation();
+
+ test_large_session_number();
+
+ rcu_unregister_thread();
+ lttng_thread_list_shutdown_orphans();
+
+ return exit_status();
+}
projects / lttng-tools.git / blobdiff