Merge branch 'master' of git://github.com/topcat/xcb-win32

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

diff --git a/src/xcb_conn.c b/src/xcb_conn.c
index 870c438..ebaa6e2 100644 (file)
--- a/src/xcb_conn.c
+++ b/src/xcb_conn.c
@@ -47,6 +47,11 @@
 #include <netinet/in.h>
 #endif /* _WIN32 */
 
+/* SHUT_RDWR is fairly recent and is not available on all platforms */
+#if !defined(SHUT_RDWR)
+#define SHUT_RDWR 2
+#endif
+
 typedef struct {
     uint8_t  status;
     uint8_t  pad0[5];
@@ -119,10 +124,7 @@ static int write_setup(xcb_connection_t *c, xcb_auth_info_t *auth_info)
     assert(count <= (int) (sizeof(parts) / sizeof(*parts)));
 
     pthread_mutex_lock(&c->iolock);
-    {
-        struct iovec *parts_ptr = parts;
-        ret = _xcb_out_send(c, &parts_ptr, &count);
-    }
+    ret = _xcb_out_send(c, parts, count);
     pthread_mutex_unlock(&c->iolock);
     return ret;
 }
@@ -255,6 +257,14 @@ xcb_connection_t *xcb_connect_to_fd(int fd, xcb_auth_info_t *auth_info)
 {
     xcb_connection_t* c;
 
+#ifndef USE_POLL
+    if(fd >= FD_SETSIZE) /* would overflow in FD_SET */
+    {
+        close(fd);
+        return (xcb_connection_t *) &error_connection;
+    }
+#endif
+
     c = calloc(1, sizeof(xcb_connection_t));
     if(!c) {
         close(fd);
@@ -287,6 +297,9 @@ void xcb_disconnect(xcb_connection_t *c)
         return;
 
     free(c->setup);
+
+    /* disallow further sends and receives */
+    shutdown(c->fd, SHUT_RDWR);
     close(c->fd);
 
     pthread_mutex_destroy(&c->iolock);
@@ -350,15 +363,15 @@ int _xcb_conn_wait(xcb_connection_t *c, pthread_cond_t *cond, struct iovec **vec
     pthread_mutex_unlock(&c->iolock);
     do {
 #if USE_POLL
-    ret = poll(&fd, 1, -1);
+        ret = poll(&fd, 1, -1);
 #else
-       ret = select(c->fd + 1, &rfds, &wfds, 0, 0);
+        ret = select(c->fd + 1, &rfds, &wfds, 0, 0);
 #endif
     } while (ret == -1 && errno == EINTR);
-    if (ret < 0)
+    if(ret < 0)
     {
         _xcb_conn_shutdown(c);
-       ret = 0;
+        ret = 0;
     }
     pthread_mutex_lock(&c->iolock);