206 lines
3.5 KiB
C
206 lines
3.5 KiB
C
/* ath.c - Thread-safeness library.
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Copyright (C) 2002, 2003, 2004 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of
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the License, or (at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <assert.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_SYS_SELECT_H
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# include <sys/select.h>
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#else
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# ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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# endif
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#endif
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#include <sys/types.h>
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#ifndef HAVE_W32_SYSTEM
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#include <sys/wait.h>
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#endif
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#ifdef _MSC_VER
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typedef long ssize_t;
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typedef int pid_t;
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#endif
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#include "ath.h"
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#define MUTEX_UNLOCKED ((ath_mutex_t) 0)
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#define MUTEX_LOCKED ((ath_mutex_t) 1)
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#define MUTEX_DESTROYED ((ath_mutex_t) 2)
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#ifdef HAVE_W32_SYSTEM
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#include <windows.h>
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uintptr_t
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ath_self (void)
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{
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return (uintptr_t) GetCurrentThreadId ();
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}
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#else
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# ifdef __linux
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#include <sys/types.h>
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#include <sys/syscall.h>
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uintptr_t
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ath_self (void)
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{
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/* Just to catch users who don't use gpgme-pthread. */
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return (uintptr_t) syscall (SYS_gettid);
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}
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# else
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uintptr_t
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ath_self (void)
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{
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return (uintptr_t) getpid ();
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}
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# endif
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#endif
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int
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ath_mutex_init (ath_mutex_t *lock)
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{
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#ifndef NDEBUG
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*lock = MUTEX_UNLOCKED;
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#endif
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return 0;
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}
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int
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ath_mutex_destroy (ath_mutex_t *lock)
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{
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#ifndef NDEBUG
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assert (*lock == MUTEX_UNLOCKED);
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*lock = MUTEX_DESTROYED;
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#endif
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return 0;
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}
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int
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ath_mutex_lock (ath_mutex_t *lock)
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{
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#ifndef NDEBUG
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assert (*lock == MUTEX_UNLOCKED);
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*lock = MUTEX_LOCKED;
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#endif
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return 0;
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}
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int
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ath_mutex_unlock (ath_mutex_t *lock)
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{
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#ifndef NDEBUG
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assert (*lock == MUTEX_LOCKED);
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*lock = MUTEX_UNLOCKED;
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#endif
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return 0;
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}
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ssize_t
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ath_read (int fd, void *buf, size_t nbytes)
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{
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return read (fd, buf, nbytes);
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}
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ssize_t
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ath_write (int fd, const void *buf, size_t nbytes)
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{
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return write (fd, buf, nbytes);
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}
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ssize_t
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ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
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struct timeval *timeout)
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{
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#ifdef HAVE_W32_SYSTEM
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return -1; /* Not supported. */
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#else
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return select (nfd, rset, wset, eset, timeout);
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#endif
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}
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ssize_t
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ath_waitpid (pid_t pid, int *status, int options)
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{
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#ifdef HAVE_W32_SYSTEM
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return -1; /* Not supported. */
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#else
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return waitpid (pid, status, options);
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#endif
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}
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int
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ath_accept (int s, struct sockaddr *addr, socklen_t *length_ptr)
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{
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#ifdef HAVE_W32_SYSTEM
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return -1; /* Not supported. */
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#else
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return accept (s, addr, length_ptr);
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#endif
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}
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int
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ath_connect (int s, const struct sockaddr *addr, socklen_t length)
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{
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#ifdef HAVE_W32_SYSTEM
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return -1; /* Not supported. */
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#else
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return connect (s, addr, length);
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#endif
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}
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int
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ath_sendmsg (int s, const struct msghdr *msg, int flags)
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{
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#ifdef HAVE_W32_SYSTEM
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return -1; /* Not supported. */
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#else
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return sendmsg (s, msg, flags);
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#endif
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}
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int
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ath_recvmsg (int s, struct msghdr *msg, int flags)
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{
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#ifdef HAVE_W32_SYSTEM
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return -1; /* Not supported. */
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#else
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return recvmsg (s, msg, flags);
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#endif
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}
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