* 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

ChangeLog

@@ -1,3 +1,8 @@
+Sat Feb  4 21:10:06 2006  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* win32/win32.c (LK_ERR): ERROR_NOT_LOCKED is not an error.
+	  In such situation, flock() should return 0.
+
 Sat Feb  4 15:52:56 2006  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* numeric.c (fix_to_s): (2**32).to_s(2) fails with exception where

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