From f0432871fd3f9489c87199700efa32a7597f135c Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 4 Feb 2006 12:21:55 +0000
Subject: * win32/win32.c (LK_ERR): ERROR_NOT_LOCKED is not an error.   In such
 situation, flock() should return 0.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9884 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 win32/win32.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'win32/win32.c')

diff --git a/win32/win32.c b/win32/win32.c
index 9c06e2562b..b1c6197ec2 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -245,7 +245,20 @@ GetCurrentThreadHandle(void)
 /* simulate flock by locking a range on the file */
 
 
-#define LK_ERR(f,i) ((f) ? (i = 0) : (errno = GetLastError() == ERROR_LOCK_VIOLATION ? EWOULDBLOCK : EACCES))
+#define LK_ERR(f,i) \
+    do {								\
+	if (f)								\
+	    i = 0;							\
+	else {								\
+	    DWORD err = GetLastError();					\
+	    if (err == ERROR_LOCK_VIOLATION)				\
+		errno = EWOULDBLOCK;					\
+	    else if (err == ERROR_NOT_LOCKED)				\
+		i = 0;							\
+	    else							\
+		errno = map_errno(err);					\
+	}								\
+    } while (0)
 #define LK_LEN      ULONG_MAX
 
 static VALUE
-- 
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