186 lines
3.5 KiB
C
186 lines
3.5 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>
|
|
#ifdef HAVE_SYS_SELECT_H
|
|
# include <sys/select.h>
|
|
#else
|
|
# include <sys/time.h>
|
|
#endif
|
|
#include <sys/types.h>
|
|
#ifndef _WIN32
|
|
#include <sys/wait.h>
|
|
#endif
|
|
|
|
#include "ath.h"
|
|
|
|
static struct ath_ops *ath_ops;
|
|
|
|
void
|
|
ath_init (void)
|
|
{
|
|
if (0)
|
|
;
|
|
#ifdef HAVE_PTHREAD
|
|
else if (!ath_ops)
|
|
ath_ops = ath_pthread_available ();
|
|
#endif
|
|
#ifdef HAVE_PTH
|
|
else if (!ath_ops)
|
|
ath_ops = ath_pth_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);
|
|
}
|
|
|
|
|
|
int
|
|
ath_accept (int s, struct sockaddr *addr, socklen_t *length_ptr)
|
|
{
|
|
if (ath_ops && ath_ops->accept)
|
|
return ath_ops->accept (s, addr, length_ptr);
|
|
else
|
|
return accept (s, addr, length_ptr);
|
|
}
|
|
|
|
|
|
int
|
|
ath_connect (int s, const struct sockaddr *addr, socklen_t length)
|
|
{
|
|
if (ath_ops && ath_ops->connect)
|
|
return ath_ops->connect (s, addr, length);
|
|
else
|
|
return connect (s, addr, length);
|
|
}
|
|
|
|
|
|
int
|
|
ath_sendmsg (int s, const struct msghdr *msg, int flags)
|
|
{
|
|
if (ath_ops && ath_ops->sendmsg)
|
|
return ath_ops->sendmsg (s, msg, flags);
|
|
else
|
|
return sendmsg (s, msg, flags);
|
|
}
|
|
|
|
|
|
int
|
|
ath_recvmsg (int s, struct msghdr *msg, int flags)
|
|
{
|
|
if (ath_ops && ath_ops->recvmsg)
|
|
return ath_ops->recvmsg (s, msg, flags);
|
|
else
|
|
return recvmsg (s, msg, flags);
|
|
}
|