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-rw-r--r--src/xcb_out.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/src/xcb_out.c b/src/xcb_out.c
index b5b6f34..3601a5f 100644
--- a/src/xcb_out.c
+++ b/src/xcb_out.c
@@ -196,12 +196,16 @@ static void send_fds(xcb_connection_t *c, int *fds, unsigned int num_fds)
prepare_socket_request(c);
while (num_fds > 0) {
- /* FIXME: This will busy-loop when XCB_MAX_PASS_FD fds are sent at once */
while (c->out.out_fd.nfd == XCB_MAX_PASS_FD && !c->has_error) {
/* XXX: if c->out.writing > 0, this releases the iolock and
* potentially allows other threads to interfere with their own fds.
*/
_xcb_out_flush_to(c, c->out.request);
+
+ if (c->out.out_fd.nfd == XCB_MAX_PASS_FD) {
+ /* We need some request to send FDs with */
+ _xcb_out_send_sync(c);
+ }
}
if (c->has_error)
break;
@@ -306,6 +310,11 @@ uint64_t xcb_send_request_with_fds64(xcb_connection_t *c, int flags, struct iove
/* get a sequence number and arrange for delivery. */
pthread_mutex_lock(&c->iolock);
+ /* send FDs before establishing a good request number, because this might
+ * call send_sync(), too
+ */
+ send_fds(c, fds, num_fds);
+
prepare_socket_request(c);
/* send GetInputFocus (sync_req) when 64k-2 requests have been sent without
@@ -314,7 +323,7 @@ uint64_t xcb_send_request_with_fds64(xcb_connection_t *c, int flags, struct iove
* applications see sequence 0 as that is used to indicate
* an error in sending the request
*/
-
+
while ((req->isvoid && c->out.request == c->in.request_expected + (1 << 16) - 2) ||
(unsigned int) (c->out.request + 1) == 0)
{
@@ -322,7 +331,6 @@ uint64_t xcb_send_request_with_fds64(xcb_connection_t *c, int flags, struct iove
prepare_socket_request(c);
}
- send_fds(c, fds, num_fds);
send_request(c, req->isvoid, workaround, flags, vector, veclen);
request = c->has_error ? 0 : c->out.request;
pthread_mutex_unlock(&c->iolock);