diff options
Diffstat (limited to 'compat/simple-ipc/ipc-unix-socket.c')
| -rw-r--r-- | compat/simple-ipc/ipc-unix-socket.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/compat/simple-ipc/ipc-unix-socket.c b/compat/simple-ipc/ipc-unix-socket.c index fe8d3fe1eb..7db3b2a897 100644 --- a/compat/simple-ipc/ipc-unix-socket.c +++ b/compat/simple-ipc/ipc-unix-socket.c @@ -328,6 +328,7 @@ struct ipc_server_data { int back_pos; int front_pos; + int started; int shutdown_requested; int is_stopped; }; @@ -824,10 +825,10 @@ static int setup_listener_socket( /* * Start IPC server in a pool of background threads. */ -int ipc_server_run_async(struct ipc_server_data **returned_server_data, - const char *path, const struct ipc_server_opts *opts, - ipc_server_application_cb *application_cb, - void *application_data) +int ipc_server_init_async(struct ipc_server_data **returned_server_data, + const char *path, const struct ipc_server_opts *opts, + ipc_server_application_cb *application_cb, + void *application_data) { struct unix_ss_socket *server_socket = NULL; struct ipc_server_data *server_data; @@ -888,6 +889,12 @@ int ipc_server_run_async(struct ipc_server_data **returned_server_data, server_data->accept_thread->fd_send_shutdown = sv[0]; server_data->accept_thread->fd_wait_shutdown = sv[1]; + /* + * Hold work-available mutex so that no work can start until + * we unlock it. + */ + pthread_mutex_lock(&server_data->work_available_mutex); + if (pthread_create(&server_data->accept_thread->pthread_id, NULL, accept_thread_proc, server_data->accept_thread)) die_errno(_("could not start accept_thread '%s'"), path); @@ -918,6 +925,15 @@ int ipc_server_run_async(struct ipc_server_data **returned_server_data, return 0; } +void ipc_server_start_async(struct ipc_server_data *server_data) +{ + if (!server_data || server_data->started) + return; + + server_data->started = 1; + pthread_mutex_unlock(&server_data->work_available_mutex); +} + /* * Gently tell the IPC server treads to shutdown. * Can be run on any thread. @@ -933,7 +949,9 @@ int ipc_server_stop_async(struct ipc_server_data *server_data) trace2_region_enter("ipc-server", "server-stop-async", NULL); - pthread_mutex_lock(&server_data->work_available_mutex); + /* If we haven't started yet, we are already holding lock. */ + if (server_data->started) + pthread_mutex_lock(&server_data->work_available_mutex); server_data->shutdown_requested = 1; |