libuv create 1Hz background timeout check

Signed-off-by: Andy Green <andy.green@linaro.org>

lib/context.c

@@ -162,6 +162,8 @@ lws_create_context(struct lws_context_creation_info *info)
 			return NULL;
 		}
 
+		context->pt[n].context = context;
+		context->pt[n].tid = n;
 		context->pt[n].http_header_data = lws_malloc(context->max_http_header_data *
 						       context->max_http_header_pool);
 		if (!context->pt[n].http_header_data)

lib/libuv.c

@@ -74,6 +74,17 @@ lws_uv_sigint_cfg(struct lws_context *context, int use_uv_sigint,
 	return 0;
 }
 
+static void
+lws_uv_timeout_cb(uv_timer_t *timer)
+{
+	struct lws_context_per_thread *pt = container_of(timer,
+			struct lws_context_per_thread, uv_timeout_watcher);
+
+	lwsl_info("%s\n", __func__);
+	/* do timeout check only */
+	lws_service_fd_tsi(pt->context, NULL, pt->tid);
+}
+
 static const int sigs[] = { SIGINT, SIGTERM, SIGSEGV, SIGFPE };
 
 LWS_VISIBLE int
@@ -112,6 +123,9 @@ lws_uv_initloop(struct lws_context *context, uv_loop_t *loop, uv_signal_cb cb,
 		uv_poll_start(&wsi->w_read.uv_watcher, UV_READABLE, lws_accept_cb);
 	}
 
+	uv_timer_init(pt->io_loop_uv, &pt->uv_timeout_watcher);
+	uv_timer_start(&pt->uv_timeout_watcher, lws_uv_timeout_cb, 1000, 1000);
+
 	return status;
 }
 

lib/private-libwebsockets.h

@@ -538,6 +538,7 @@ struct lws_context_per_thread {
 	struct lws *rx_draining_ext_list;
 	struct lws *tx_draining_ext_list;
 	struct lws *timeout_list;
+	struct lws_context *context;
 #ifdef LWS_WITH_CGI
 	struct lws_cgi *cgi_list;
 #endif
@@ -557,6 +558,7 @@ struct lws_context_per_thread {
 #if defined(LWS_USE_LIBUV)
 	uv_loop_t *io_loop_uv;
 	uv_signal_t signals[8];
+	uv_timer_t uv_timeout_watcher;
 #endif
 #if defined(LWS_USE_LIBEV)
 	struct lws_io_watcher w_accept;
@@ -582,6 +584,7 @@ struct lws_context_per_thread {
 	unsigned int fds_count;
 
 	short ah_count_in_use;
+	unsigned char tid;
 };
 
 /*

test-server/test-server-libuv.c

@@ -122,9 +122,8 @@ void signal_cb(uv_signal_t *watcher, int revents)
 }
 
 static void
-uv_timeout_cb(uv_timer_t *w)
+uv_timeout_cb_dumb_increment(uv_timer_t *w)
 {
-	lwsl_info("%s\n", __func__);
 	lws_callback_on_writable_all_protocol(context,
 					&protocols[PROTOCOL_DUMB_INCREMENT]);
 }
@@ -273,6 +272,7 @@ int main(int argc, char **argv)
 	info.gid = -1;
 	info.uid = -1;
 	info.max_http_header_pool = 1;
+	info.timeout_secs = 5;
 	info.options = opts | LWS_SERVER_OPTION_LIBUV;
 
 	context = lws_create_context(&info);
@@ -284,7 +284,7 @@ int main(int argc, char **argv)
 	lws_uv_initloop(context, NULL, signal_cb, 0);
 
 	uv_timer_init(lws_uv_getloop(context, 0), &timeout_watcher);
-	uv_timer_start(&timeout_watcher, uv_timeout_cb, 50, 50);
+	uv_timer_start(&timeout_watcher, uv_timeout_cb_dumb_increment, 50, 50);
 
 	lws_libuv_run(context, 0);