From 731c85762d8994119f4eaf572cc59c9adbb7abd9 Mon Sep 17 00:00:00 2001 From: Jamey Sharp Date: Mon, 27 Feb 2006 02:57:36 -0800 Subject: [PATCH] Move test for other writing threads *before* allocating a sequence number. --- src/xcb_out.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/xcb_out.c b/src/xcb_out.c index 8eb8a7a..762efbd 100644 --- a/src/xcb_out.c +++ b/src/xcb_out.c @@ -170,6 +170,10 @@ int XCBSendRequest(XCBConnection *c, unsigned int *request, int flags, struct io return -1; } + /* wait for other writing threads to get out of my way. */ + while(c->out.writing) + pthread_cond_wait(&c->out.cond, &c->iolock); + *request = ++c->out.request; _xcb_in_expect_reply(c, *request, workaround, flags); @@ -250,8 +254,6 @@ int _xcb_out_write(XCBConnection *c) int _xcb_out_write_block(XCBConnection *c, struct iovec *vector, size_t count) { - while(c->out.writing) - pthread_cond_wait(&c->out.cond, &c->iolock); assert(!c->out.vec && !c->out.vec_len); while(count && c->out.queue_len + vector[0].iov_len < sizeof(c->out.queue)) { -- 2.34.1