mirror of
git://git.gnupg.org/gnupg.git
synced 2024-12-23 10:29:58 +01:00
67b82a9c60
* common/dotlock.c (dotlock_is_locked): New. (dotlock_take): Set locked flag also in disabled mode. No more warning if the lock has already been taken. (dotlock_release): Clear locked flag also in disabled mode. No more warning if the lock has not been taken. -- This allow to use dotlock_take and dotlock_release even if they have already been called. Before this changes this worked too but a diagnostic was printed.
114 lines
4.5 KiB
C
114 lines
4.5 KiB
C
/* dotlock.h - dotfile locking declarations
|
|
* Copyright (C) 2000, 2001, 2006, 2011 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of GnuPG.
|
|
*
|
|
* GnuPG is free software; you can redistribute and/or modify this
|
|
* part of GnuPG under the terms of either
|
|
*
|
|
* - the GNU Lesser General Public License as published by the Free
|
|
* Software Foundation; either version 3 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* or
|
|
*
|
|
* - the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* or both in parallel, as here.
|
|
*
|
|
* GnuPG 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
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copies of the GNU General Public License
|
|
* and the GNU Lesser General Public License along with this program;
|
|
* if not, see <https://www.gnu.org/licenses/>.
|
|
*
|
|
* ALTERNATIVELY, this file may be distributed under the terms of the
|
|
* following license, in which case the provisions of this license are
|
|
* required INSTEAD OF the GNU Lesser General License or the GNU
|
|
* General Public License. If you wish to allow use of your version of
|
|
* this file only under the terms of the GNU Lesser General License or
|
|
* the GNU General Public License, and not to allow others to use your
|
|
* version of this file under the terms of the following license,
|
|
* indicate your decision by deleting this paragraph and the license
|
|
* below.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, and the entire permission notice in its entirety,
|
|
* including the disclaimer of warranties.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef GNUPG_COMMON_DOTLOCK_H
|
|
#define GNUPG_COMMON_DOTLOCK_H
|
|
|
|
/* See dotlock.c for a description. */
|
|
|
|
#ifdef DOTLOCK_EXT_SYM_PREFIX
|
|
# ifndef _DOTLOCK_PREFIX
|
|
# define _DOTLOCK_PREFIX1(x,y) x ## y
|
|
# define _DOTLOCK_PREFIX2(x,y) _DOTLOCK_PREFIX1(x,y)
|
|
# define _DOTLOCK_PREFIX(x) _DOTLOCK_PREFIX2(DOTLOCK_EXT_SYM_PREFIX,x)
|
|
# endif /*_DOTLOCK_PREFIX*/
|
|
# define dotlock_disable _DOTLOCK_PREFIX(dotlock_disable)
|
|
# define dotlock_create _DOTLOCK_PREFIX(dotlock_create)
|
|
# define dotlock_set_fd _DOTLOCK_PREFIX(dotlock_set_fd)
|
|
# define dotlock_get_fd _DOTLOCK_PREFIX(dotlock_get_fd)
|
|
# define dotlock_destroy _DOTLOCK_PREFIX(dotlock_destroy)
|
|
# define dotlock_take _DOTLOCK_PREFIX(dotlock_take)
|
|
# define dotlock_release _DOTLOCK_PREFIX(dotlock_release)
|
|
# define dotlock_remove_lockfiles _DOTLOCK_PREFIX(dotlock_remove_lockfiles)
|
|
#endif /*DOTLOCK_EXT_SYM_PREFIX*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#if 0
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
|
|
struct dotlock_handle;
|
|
typedef struct dotlock_handle *dotlock_t;
|
|
|
|
void dotlock_disable (void);
|
|
dotlock_t dotlock_create (const char *file_to_lock, unsigned int flags);
|
|
void dotlock_set_fd (dotlock_t h, int fd);
|
|
int dotlock_get_fd (dotlock_t h);
|
|
void dotlock_destroy (dotlock_t h);
|
|
int dotlock_is_locked (dotlock_t h);
|
|
int dotlock_take (dotlock_t h, long timeout);
|
|
int dotlock_release (dotlock_t h);
|
|
void dotlock_remove_lockfiles (void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /*GNUPG_COMMON_DOTLOCK_H*/
|