/* * 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; }