/usr/include/c-client/flockcyg.h is in libc-client2007e-dev 8:2007f~dfsg-4.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | /* ========================================================================
* Copyright 1988-2006 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*
* ========================================================================
*/
/*
* Program: flock() emulation via fcntl() locking
*
* 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: 10 April 2001
* Last Edited: 30 August 2006
*/
/* Cygwin does not seem to have the design flaw in fcntl() locking that
* most other systems do (see flocksim.c for details). If some cretin
* decides to implement that design flaw, then Cygwin will have to use
* flocksim. Also, we don't test NFS either
*/
#define flock flocksim /* use ours instead of theirs */
#undef LOCK_SH
#define LOCK_SH 1 /* shared lock */
#undef LOCK_EX
#define LOCK_EX 2 /* exclusive lock */
#undef LOCK_NB
#define LOCK_NB 4 /* no blocking */
#undef LOCK_UN
#define LOCK_UN 8 /* unlock */
/* Function prototypes */
int flocksim (int fd,int operation);
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