dotlock.h
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
GNU Mailutils is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Mailutils is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with GNU Mailutils; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef _MAILUTILS_SYS_DOTLOCK_H
#define _MAILUTILS_SYS_DOTLOCK_H
#ifdef DMALLOC
#include <dmalloc.h>
#endif
#include <mailutils/refcount.h>
#include <mailutils/sys/lockfile.h>
#ifdef __cplusplus
extern "C" {
#endif
/* locking flags */
#define MU_LOCKFILE_DOTLOCK_PID 1
#define MU_LOCKFILE_DOTLOCK_FCNTL 2
#define MU_LOCKFILE_DOTLOCK_TIME 4
#define MU_LOCKFILE_DOTLOCK_EXPIRE_TIME (5 * 60)
#define MU_LOCKFILE_DOTLOCK_ATTR 0444
struct _lockfile_dotlock
{
struct _lockfile base;
mu_refcount_t refcount;
int fd;
int refcnt; /* For recursive file locking. */
char *fname;
int flags;
};
extern int _lockfile_dotlock_ctor __P ((struct _lockfile_dotlock *, const char *));
extern void _lockfile_dotlock_dtor __P ((lockfile_t));
extern int _lockfile_dotlock_ref __P ((lockfile_t));
extern void _lockfile_dotlock_destroy __P ((lockfile_t *));
extern int _lockfile_dotlock_lock __P ((lockfile_t));
extern int _lockfile_dotlock_touchlock __P ((lockfile_t));
extern int _lockfile_dotlock_unlock __P ((lockfile_t));
#ifdef __cplusplus
}
#endif
#endif /* _MAILUTILS_SYS_DOTLOCK_H */