return ret;
}
+/*
+ * Wait on consumer process termination.
+ *
+ * Need to be called with the consumer data lock held or from a context
+ * ensuring no concurrent access to data (e.g: cleanup).
+ */
+static void wait_consumer(struct consumer_data *consumer_data)
+{
+ pid_t ret;
+ int status;
+
+ if (consumer_data->pid <= 0) {
+ return;
+ }
+
+ DBG("Waiting for complete teardown of consumerd (PID: %d)",
+ consumer_data->pid);
+ ret = waitpid(consumer_data->pid, &status, 0);
+ if (ret == -1) {
+ PERROR("consumerd waitpid pid: %d", consumer_data->pid)
+ }
+ if (!WIFEXITED(status)) {
+ ERR("consumerd termination with error: %d",
+ WEXITSTATUS(ret));
+ }
+ consumer_data->pid = 0;
+}
+
/*
* Cleanup the session daemon's data structures.
*/
}
}
+ wait_consumer(&kconsumer_data);
+ wait_consumer(&ustconsumer64_data);
+ wait_consumer(&ustconsumer32_data);
+
DBG("Cleaning up all agent apps");
agent_app_ht_clean();
unlink(consumer_data->err_unix_sock_path);
unlink(consumer_data->cmd_unix_sock_path);
- consumer_data->pid = 0;
pthread_mutex_unlock(&consumer_data->lock);
/* Cleanup metadata socket mutex. */
wait_queue->count--;
ust_app_destroy(wait_node->app);
free(wait_node);
+ /*
+ * Silence warning of use-after-free in
+ * cds_list_for_each_entry_safe which uses
+ * __typeof__(*wait_node).
+ */
+ wait_node = NULL;
break;
}
}
* Don't care about return value. Let the manage apps threads
* handle app unregistration upon socket close.
*/
- (void) ust_app_register_done(app->sock);
+ (void) ust_app_register_done(app);
/*
* Even if the application socket has been closed, send the app
DBG("Processing client command %d", cmd_ctx->lsm->cmd_type);
+ assert(!rcu_read_ongoing());
+
*sock_error = 0;
switch (cmd_ctx->lsm->cmd_type) {
session_unlock_list();
}
init_setup_error:
+ assert(!rcu_read_ongoing());
return ret;
}