From: Shuanglei Tao <tsl0922@gmail.com>
Date: Wed, 17 Apr 2019 10:28:10 +0000 (+0800)
Subject: server: do not block main thread when acquiring lock
X-Git-Url: http://git.prime8.dev/?a=commitdiff_plain;h=e954cb5481cf43aa08cb618cae9301c50ba5f0ee;p=ttyd.git

server: do not block main thread when acquiring lock
---

diff --git a/src/server.c b/src/server.c
index ff848aa..413d9b9 100644
--- a/src/server.c
+++ b/src/server.c
@@ -475,8 +475,7 @@ main(int argc, char **argv) {
         if (!LIST_EMPTY(&server->clients)) {
             struct tty_client *client;
             LIST_FOREACH(client, &server->clients, list) {
-                if (client->running) {
-                    pthread_mutex_lock(&client->mutex);
+                if (client->running && pthread_mutex_trylock(&client->mutex)) {
                     if (client->state != STATE_DONE)
                         lws_callback_on_writable(client->wsi);
                     else