gpgme/src/ath.c
NIIBE Yutaka 8148237cb4 posix: Use poll instead, when available, removing use of select.
* configure.ac (HAVE_POLL_H): Add the check.
* src/ath.c [!HAVE_POLL_H] (ath_select): Enable conditionally.
* src/posix-io.c [HAVE_POLL_H] (_gpgme_io_select_poll): Use poll.
* tests/gpg/t-cancel.c [HAVE_POLL_H] (do_select): Use poll.
* tests/gpg/t-eventloop.c [HAVE_POLL_H] (do_select): Use poll.

--

GnuPG-bug-id: 2385
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2021-11-25 11:13:17 +09:00

162 lines
3.0 KiB
C

/* ath.c - Thread-safeness library.
* Copyright (C) 2002, 2003, 2004 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 Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <https://gnu.org/licenses/>.
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_POLL_H
# include <poll.h>
#else
# ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
# else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# endif
# endif
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifndef HAVE_W32_SYSTEM
#include <sys/wait.h>
#endif
#include "gpgme.h"
#ifdef _MSC_VER
typedef int pid_t;
#endif
#include "ath.h"
#ifdef HAVE_W32_SYSTEM
#include <windows.h>
uintptr_t
ath_self (void)
{
return (uintptr_t) GetCurrentThreadId ();
}
#else
# ifdef __linux
#include <sys/syscall.h>
uintptr_t
ath_self (void)
{
/* Just to catch users who don't use gpgme-pthread. */
return (uintptr_t) syscall (__NR_gettid);
}
# else
uintptr_t
ath_self (void)
{
return (uintptr_t) getpid ();
}
# endif
#endif
gpgme_ssize_t
ath_read (int fd, void *buf, size_t nbytes)
{
return read (fd, buf, nbytes);
}
gpgme_ssize_t
ath_write (int fd, const void *buf, size_t nbytes)
{
return write (fd, buf, nbytes);
}
#if !defined(HAVE_POLL_H)
gpgme_ssize_t
ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
struct timeval *timeout)
{
#ifdef HAVE_W32_SYSTEM
return -1; /* Not supported. */
#else
return select (nfd, rset, wset, eset, timeout);
#endif
}
#endif
gpgme_ssize_t
ath_waitpid (pid_t pid, int *status, int options)
{
#ifdef HAVE_W32_SYSTEM
return -1; /* Not supported. */
#else
return waitpid (pid, status, options);
#endif
}
int
ath_accept (int s, struct sockaddr *addr, socklen_t *length_ptr)
{
#ifdef HAVE_W32_SYSTEM
return -1; /* Not supported. */
#else
return accept (s, addr, length_ptr);
#endif
}
int
ath_connect (int s, const struct sockaddr *addr, socklen_t length)
{
#ifdef HAVE_W32_SYSTEM
return -1; /* Not supported. */
#else
return connect (s, addr, length);
#endif
}
int
ath_sendmsg (int s, const struct msghdr *msg, int flags)
{
#ifdef HAVE_W32_SYSTEM
return -1; /* Not supported. */
#else
return sendmsg (s, msg, flags);
#endif
}
int
ath_recvmsg (int s, struct msghdr *msg, int flags)
{
#ifdef HAVE_W32_SYSTEM
return -1; /* Not supported. */
#else
return recvmsg (s, msg, flags);
#endif
}