ae0d104de2
* configure.ac: Add checks for Pth and pthreads. * acinclude.m4: Add slightly hacked check for pth (seems to be an autoconf version problem). gpgme/ 2002-06-02 Marcus Brinkmann <marcus@g10code.de> * Makefile.am (ath_components): New variable. (ath_components_pthread): Likewise. (ath_components_pth): Likewise. (system_components): Add ath_componentes. * ath.h: New file. * ath.c: Likewise. * ath-pthread.c: Likewise. * ath-pth.c: Likewise. * posix-sema.c (_gpgme_sema_cs_enter): Rework to use the ATH interface. * mutex.h: Remove file.
142 lines
2.7 KiB
C
142 lines
2.7 KiB
C
/* ath.c - self-adapting thread-safeness library
|
|
* Copyright (C) 2002 g10 Code GmbH
|
|
*
|
|
* This file is part of GPGME.
|
|
*
|
|
* GPGME is free software; you can redistribute it and/or modify
|
|
* it under the terms of 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.
|
|
*
|
|
* GPGME 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 copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <unistd.h>
|
|
#include <sys/select.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include "ath.h"
|
|
|
|
static struct ath_ops *ath_ops;
|
|
|
|
void
|
|
ath_init (void)
|
|
{
|
|
#ifdef HAVE_PTHREAD
|
|
if (!ath_ops)
|
|
ath_ops = ath_pthread_available ();
|
|
#endif
|
|
#ifdef HAVE_PTH
|
|
if (!ath_ops)
|
|
ath_ops = ath_pth_available ();
|
|
#endif
|
|
#ifdef HAVE_ATH_DUMMY
|
|
if (!ath_ops)
|
|
ath_ops = ath_dummy_available ();
|
|
#endif
|
|
}
|
|
|
|
|
|
int
|
|
ath_mutex_init (ath_mutex_t *lock)
|
|
{
|
|
if (!ath_ops)
|
|
return 0;
|
|
|
|
return ath_ops->mutex_init (lock, 0);
|
|
}
|
|
|
|
|
|
int
|
|
ath_mutex_destroy (ath_mutex_t *lock)
|
|
{
|
|
int err;
|
|
if (!ath_ops)
|
|
return 0;
|
|
err = ath_ops->mutex_init (lock, 1);
|
|
if (!err)
|
|
err = ath_ops->mutex_destroy (*lock);
|
|
return err;
|
|
}
|
|
|
|
|
|
int
|
|
ath_mutex_lock (ath_mutex_t *lock)
|
|
{
|
|
int err;
|
|
|
|
if (!ath_ops)
|
|
return 0;
|
|
err = ath_ops->mutex_init (lock, 1);
|
|
if (!err)
|
|
err = ath_ops->mutex_lock (*lock);
|
|
return err;
|
|
}
|
|
|
|
|
|
int
|
|
ath_mutex_unlock (ath_mutex_t *lock)
|
|
{
|
|
int err;
|
|
|
|
if (!ath_ops)
|
|
return 0;
|
|
err = ath_ops->mutex_init (lock, 1);
|
|
if (!err)
|
|
err = ath_ops->mutex_unlock (*lock);
|
|
return err;
|
|
}
|
|
|
|
|
|
ssize_t
|
|
ath_read (int fd, void *buf, size_t nbytes)
|
|
{
|
|
if (ath_ops && ath_ops->read)
|
|
return ath_ops->read (fd, buf, nbytes);
|
|
else
|
|
return read (fd, buf, nbytes);
|
|
}
|
|
|
|
|
|
ssize_t
|
|
ath_write (int fd, const void *buf, size_t nbytes)
|
|
{
|
|
if (ath_ops && ath_ops->write)
|
|
return ath_ops->write (fd, buf, nbytes);
|
|
else
|
|
return write (fd, buf, nbytes);
|
|
}
|
|
|
|
|
|
ssize_t
|
|
ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
|
|
struct timeval *timeout)
|
|
{
|
|
if (ath_ops && ath_ops->select)
|
|
return ath_ops->select (nfd, rset, wset, eset, timeout);
|
|
else
|
|
return select (nfd, rset, wset, eset, timeout);
|
|
}
|
|
|
|
|
|
ssize_t
|
|
ath_waitpid (pid_t pid, int *status, int options)
|
|
{
|
|
if (ath_ops && ath_ops->waitpid)
|
|
return ath_ops->waitpid (pid, status, options);
|
|
else
|
|
return waitpid (pid, status, options);
|
|
}
|