Imported from /home/lorry/working-area/delta_php2/php-5.4.13.tar.bz2.HEADphp-5.4.13master

1 files changed, 84 insertions, 0 deletions

diff --git a/win32/flock.c b/win32/flock.c
new file mode 100644
index 0000000..e659de6
--- /dev/null
+++ b/win32/flock.c
@@ -0,0 +1,84 @@
+/*
+ * Program:   Unix compatibility routines
+ *
+ * Author:  Mark Crispin
+ *      Networks and Distributed Computing
+ *      Computing & Communications
+ *      University of Washington
+ *      Administration Building, AG-44
+ *      Seattle, WA  98195
+ *      Internet: MRC@CAC.Washington.EDU
+ *
+ * Date:    14 September 1996
+ * Last Edited: 14 August 1997
+ *
+ * Copyright 1997 by the University of Washington
+ *
+ *  Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appears in all copies and that both the
+ * above copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of the University of Washington not be
+ * used in advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  This software is made available
+ * "as is", and
+ * THE UNIVERSITY OF WASHINGTON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED,
+ * WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT LIMITATION ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND IN
+ * NO EVENT SHALL THE UNIVERSITY OF WASHINGTON BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, TORT
+ * (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF OR IN CONNECTION
+ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+
+/*              DEDICATION
+
+ *  This file is dedicated to my dog, Unix, also known as Yun-chan and
+ * Unix J. Terwilliker Jehosophat Aloysius Monstrosity Animal Beast.  Unix
+ * passed away at the age of 11 1/2 on September 14, 1996, 12:18 PM PDT, after
+ * a two-month bout with cirrhosis of the liver.
+ *
+ *  He was a dear friend, and I miss him terribly.
+ *
+ *  Lift a leg, Yunie.  Luv ya forever!!!!
+ */
+
+#include "php.h"
+#include <windows.h>
+#include <io.h>
+#include <errno.h>
+#include "flock.h"
+
+PHPAPI int flock(int fd, int op)
+{
+	HANDLE hdl = (HANDLE) _get_osfhandle(fd);
+	DWORD low = 1, high = 0;
+	OVERLAPPED offset =
+	{0, 0, 0, 0, NULL};
+	if (hdl < 0)
+		return -1;				/* error in file descriptor */
+	/* bug for bug compatible with Unix */
+	UnlockFileEx(hdl, 0, low, high, &offset);
+	switch (op & ~LOCK_NB) {	/* translate to LockFileEx() op */
+		case LOCK_EX:			/* exclusive */
+			if (LockFileEx(hdl, LOCKFILE_EXCLUSIVE_LOCK +
+						((op & LOCK_NB) ? LOCKFILE_FAIL_IMMEDIATELY : 0),
+						   0, low, high, &offset))
+				return 0;
+			break;
+		case LOCK_SH:			/* shared */
+			if (LockFileEx(hdl, ((op & LOCK_NB) ? LOCKFILE_FAIL_IMMEDIATELY : 0),
+						   0, low, high, &offset))
+				return 0;
+			break;
+		case LOCK_UN:			/* unlock */
+			return 0;			/* always succeeds */
+		default:				/* default */
+			break;
+	}
+	errno = EINVAL;				/* bad call */
+	return -1;
+}