From d34ab8d619ec0ff3b15b1cc554a3ea53e28cdca0 Mon Sep 17 00:00:00 2001
From: rswindell <>
Date: Thu, 1 May 2003 22:14:04 +0000
Subject: [PATCH] #includes errno.h (for EBUSY and EAGAIN definitions). Created
(non-POSIX) sem_trywait_block implementation for Win32 (need to
investigate/implement draft-POSIX sem_timedwait function).
---
src/xpdev/threadwrap.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/xpdev/threadwrap.h b/src/xpdev/threadwrap.h
index 93159b947e..5b966d0d58 100644
--- a/src/xpdev/threadwrap.h
+++ b/src/xpdev/threadwrap.h
@@ -61,12 +61,14 @@ extern "C" {
#include <process.h> /* _beginthread */
#include <limits.h> /* INT_MAX */
+ #include <errno.h> /* EAGAIN and EBUSY */
/* POSIX semaphores */
typedef HANDLE sem_t;
#define sem_init(psem,ps,v) *(psem)=CreateSemaphore(NULL,v,INT_MAX,NULL)
#define sem_wait(psem) WaitForSingleObject(*(psem),INFINITE)
#define sem_trywait(psem) (WaitForSingleObject(*(psem),0)==WAIT_OBJECT_0?0:EAGAIN)
+ #define sem_trywait_block(psem,t) (WaitForSingleObject(*(psem),t)==WAIT_OBJECT_0?0:EAGAIN)
#define sem_post(psem) ReleaseSemaphore(*(psem),1,NULL)
#define sem_destroy(psem) CloseHandle(*(psem))
/* No Win32 implementation for sem_getvalue() */
--
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