Make xcb_take_socket keep flushing until idle

[free-sw/xcb/libxcb] / src / xcb_out.c

diff --git a/src/xcb_out.c b/src/xcb_out.c
index fe71193..d6082fc 100644 (file)
--- a/src/xcb_out.c
+++ b/src/xcb_out.c
@@ -263,7 +263,13 @@ int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), v
         return 0;
     pthread_mutex_lock(&c->iolock);
     get_socket_back(c);
-    ret = _xcb_out_flush_to(c, c->out.request);
+
+    /* _xcb_out_flush may drop the iolock allowing other threads to
+     * write requests, so keep flushing until we're done
+     */
+    do
+           ret = _xcb_out_flush_to(c, c->out.request);
+    while (ret && c->out.request != c->out.request_written);
     if(ret)
     {
         c->out.return_socket = return_socket;
@@ -343,6 +349,15 @@ int _xcb_out_send(xcb_connection_t *c, struct iovec *vector, int count)
     return ret;
 }
 
+void _xcb_out_send_sync(xcb_connection_t *c)
+{
+    /* wait for other writing threads to get out of my way. */
+    while(c->out.writing)
+        pthread_cond_wait(&c->out.cond, &c->iolock);
+    get_socket_back(c);
+    send_sync(c);
+}
+
 int _xcb_out_flush_to(xcb_connection_t *c, uint64_t request)
 {
     assert(XCB_SEQUENCE_COMPARE(request, <=, c->out.request));