API/ABI change: XCBSendRequest returns the sequence number instead of using an out...

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

diff --git a/src/xcb_in.c b/src/xcb_in.c
index cacb220..973a0d2 100644 (file)
--- a/src/xcb_in.c
+++ b/src/xcb_in.c
@@ -133,7 +133,7 @@ static int read_packet(XCBConnection *c)
         length += genrep.length * 4;
     }
 
-    buf = malloc(length);
+    buf = malloc(length + (genrep.response_type == 1 ? 0 : sizeof(CARD32)));
     if(!buf)
         return 0;
     if(_xcb_in_read_block(c, buf, length) <= 0)
@@ -142,6 +142,9 @@ static int read_packet(XCBConnection *c)
         return 0;
     }
 
+    if(genrep.response_type != 1)
+        ((XCBGenericEvent *) buf)->full_sequence = c->in.request_read;
+
     /* reply, or checked error */
     if(genrep.response_type == 1 || (genrep.response_type == 0 && pend && (pend->flags & XCB_REQUEST_CHECKED)))
     {
@@ -235,6 +238,10 @@ void *XCBWaitForReply(XCBConnection *c, unsigned int request, XCBGenericError **
     if(e)
         *e = 0;
 
+    /* If an error occurred when issuing the request, fail immediately. */
+    if(!request)
+        return 0;
+
     pthread_mutex_lock(&c->iolock);
 
     /* If this request has not been written yet, write it. */