446 lines
9.5 KiB
C
446 lines
9.5 KiB
C
/* $NetBSD: pthread_cancelstub.c,v 1.12 2005/03/21 09:00:49 kleink Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Nathan J. Williams.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: pthread_cancelstub.c,v 1.12 2005/03/21 09:00:49 kleink Exp $");
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/*
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* This is necessary because the names are always weak (they are not
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* POSIX functions).
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*/
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#define fsync_range _fsync_range
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#define pollts _pollts
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/*
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* XXX this is necessary to get the prototypes for the __sigsuspend14
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* XXX and __msync13 internal names, instead of the application-visible
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* XXX sigsuspend and msync names. It's kind of gross, but we're pretty
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* XXX intimate with libc already.
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*/
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#define __LIBC12_SOURCE__
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#include <sys/msg.h>
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#include <sys/types.h>
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#include <sys/uio.h>
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#include <sys/wait.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <stdarg.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/mman.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include "pthread.h"
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#include "pthread_int.h"
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int pthread__cancel_stub_binder;
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int _sys_accept(int, struct sockaddr *, socklen_t *);
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int _sys_close(int);
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int _sys_connect(int, const struct sockaddr *, socklen_t);
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int _sys_fcntl(int, int, ...);
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int _sys_fdatasync(int);
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int _sys_fsync(int);
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int _sys_fsync_range(int, int, off_t, off_t);
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ssize_t _sys_msgrcv(int, void *, size_t, long, int);
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int _sys_msgsnd(int, const void *, size_t, int);
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int _sys___msync13(void *, size_t, int);
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int _sys_open(const char *, int, ...);
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int _sys_poll(struct pollfd *, nfds_t, int);
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int _sys_pollts(struct pollfd *, nfds_t, const struct timespec *,
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const sigset_t *);
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ssize_t _sys_pread(int, void *, size_t, off_t);
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int _sys_pselect(int, fd_set *, fd_set *, fd_set *,
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const struct timespec *, const sigset_t *);
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ssize_t _sys_pwrite(int, const void *, size_t, off_t);
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ssize_t _sys_read(int, void *, size_t);
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ssize_t _sys_readv(int, const struct iovec *, int);
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int _sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
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int _sys_wait4(pid_t, int *, int, struct rusage *);
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ssize_t _sys_write(int, const void *, size_t);
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ssize_t _sys_writev(int, const struct iovec *, int);
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#define TESTCANCEL(id) do { \
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if (__predict_false((id)->pt_cancel)) \
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pthread_exit(PTHREAD_CANCELED); \
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} while (/*CONSTCOND*/0)
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int
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accept(int s, struct sockaddr *addr, socklen_t *addrlen)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_accept(s, addr, addrlen);
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TESTCANCEL(self);
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return retval;
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}
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int
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close(int d)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_close(d);
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TESTCANCEL(self);
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return retval;
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}
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int
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connect(int s, const struct sockaddr *addr, socklen_t namelen)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_connect(s, addr, namelen);
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TESTCANCEL(self);
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return retval;
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}
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int
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fcntl(int fd, int cmd, ...)
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{
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int retval;
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pthread_t self;
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va_list ap;
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self = pthread__self();
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TESTCANCEL(self);
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va_start(ap, cmd);
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retval = _sys_fcntl(fd, cmd, va_arg(ap, void *));
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va_end(ap);
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TESTCANCEL(self);
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return retval;
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}
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int
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fdatasync(int d)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_fdatasync(d);
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TESTCANCEL(self);
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return retval;
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}
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int
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fsync(int d)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_fsync(d);
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TESTCANCEL(self);
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return retval;
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}
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int
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fsync_range(int d, int f, off_t s, off_t e)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_fsync_range(d, f, s, e);
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TESTCANCEL(self);
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return retval;
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}
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ssize_t
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msgrcv(int msgid, void *msgp, size_t msgsz, long msgtyp, int msgflg)
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{
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ssize_t retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_msgrcv(msgid, msgp, msgsz, msgtyp, msgflg);
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TESTCANCEL(self);
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return retval;
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}
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int
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msgsnd(int msgid, const void *msgp, size_t msgsz, int msgflg)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_msgsnd(msgid, msgp, msgsz, msgflg);
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TESTCANCEL(self);
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return retval;
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}
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int
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__msync13(void *addr, size_t len, int flags)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys___msync13(addr, len, flags);
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TESTCANCEL(self);
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return retval;
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}
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int
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open(const char *path, int flags, ...)
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{
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int retval;
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pthread_t self;
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va_list ap;
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self = pthread__self();
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TESTCANCEL(self);
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va_start(ap, flags);
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retval = _sys_open(path, flags, va_arg(ap, mode_t));
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va_end(ap);
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TESTCANCEL(self);
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return retval;
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}
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int
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poll(struct pollfd *fds, nfds_t nfds, int timeout)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_poll(fds, nfds, timeout);
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TESTCANCEL(self);
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return retval;
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}
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int
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pollts(struct pollfd *fds, nfds_t nfds, const struct timespec *ts,
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const sigset_t *sigmask)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_pollts(fds, nfds, ts, sigmask);
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TESTCANCEL(self);
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return retval;
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}
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ssize_t
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pread(int d, void *buf, size_t nbytes, off_t offset)
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{
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ssize_t retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_pread(d, buf, nbytes, offset);
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TESTCANCEL(self);
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return retval;
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}
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int
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pselect(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
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const struct timespec *timeout, const sigset_t *sigmask)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_pselect(nfds, readfds, writefds, exceptfds, timeout,
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sigmask);
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TESTCANCEL(self);
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return retval;
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}
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ssize_t
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pwrite(int d, const void *buf, size_t nbytes, off_t offset)
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{
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ssize_t retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_pwrite(d, buf, nbytes, offset);
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TESTCANCEL(self);
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return retval;
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}
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ssize_t
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read(int d, void *buf, size_t nbytes)
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{
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ssize_t retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_read(d, buf, nbytes);
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TESTCANCEL(self);
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return retval;
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}
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ssize_t
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readv(int d, const struct iovec *iov, int iovcnt)
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{
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ssize_t retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_readv(d, iov, iovcnt);
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TESTCANCEL(self);
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return retval;
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}
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int
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select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
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struct timeval *timeout)
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{
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int retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_select(nfds, readfds, writefds, exceptfds, timeout);
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TESTCANCEL(self);
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return retval;
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}
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pid_t
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wait4(pid_t wpid, int *status, int options, struct rusage *rusage)
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{
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pid_t retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_wait4(wpid, status, options, rusage);
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TESTCANCEL(self);
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return retval;
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}
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ssize_t
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write(int d, const void *buf, size_t nbytes)
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{
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ssize_t retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_write(d, buf, nbytes);
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TESTCANCEL(self);
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return retval;
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}
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ssize_t
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writev(int d, const struct iovec *iov, int iovcnt)
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{
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ssize_t retval;
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pthread_t self;
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self = pthread__self();
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TESTCANCEL(self);
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retval = _sys_writev(d, iov, iovcnt);
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TESTCANCEL(self);
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return retval;
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}
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__strong_alias(_close, close)
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__strong_alias(_fcntl, fcntl)
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__strong_alias(_fdatasync, fdatasync)
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__strong_alias(_fsync, fsync)
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__weak_alias(fsync_range, _fsync_range)
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__strong_alias(_msgrcv, msgrcv)
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__strong_alias(_msgsnd, msgsnd)
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__strong_alias(___msync13, __msync13)
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__strong_alias(_open, open)
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__strong_alias(_poll, poll)
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__weak_alias(pollts, _pollts)
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__strong_alias(_pread, pread)
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__strong_alias(_pselect, pselect)
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__strong_alias(_pwrite, pwrite)
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__strong_alias(_read, read)
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__strong_alias(_readv, readv)
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__strong_alias(_select, select)
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__strong_alias(_wait4, wait4)
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__strong_alias(_write, write)
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__strong_alias(_writev, writev)
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