freebsd-dev/lib/libc_r/uthread/uthread_connect.c
Daniel Eischen e5106342c6 Add weak definitions for wrapped system calls. In general:
_foo - wrapped system call
	foo - weak definition to _foo

and for cancellation points:

	_foo - wrapped system call
	__foo - enter cancellation point, call _foo(), leave
	        cancellation point
	foo - weak definition to __foo

Change use of global _thread_run to call a function to get the
currently running thread.

Make all pthread_foo functions weak definitions to _pthread_foo,
where _pthread_foo is the implementation.  This allows an application
to provide its own pthread functions.

Provide slightly different versions of pthread_mutex_lock and
pthread_mutex_init so that we can tell the difference between
a libc mutex and an application mutex.  Threads holding mutexes
internal to libc should never be allowed to exit, call signal
handlers, or cancel.

Approved by:	-arch
2001-01-24 13:03:38 +00:00

80 lines
2.9 KiB
C

/*
* Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by John Birrell.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <pthread.h>
#include "pthread_private.h"
#pragma weak connect=_connect
int
_connect(int fd, const struct sockaddr * name, socklen_t namelen)
{
struct pthread *curthread = _get_curthread();
struct sockaddr tmpname;
int errnolen, ret, tmpnamelen;
if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) {
if ((ret = __sys_connect(fd, name, namelen)) < 0) {
if (!(_thread_fd_table[fd]->flags & O_NONBLOCK) &&
((errno == EWOULDBLOCK) || (errno == EINPROGRESS) ||
(errno == EALREADY) || (errno == EAGAIN))) {
curthread->data.fd.fd = fd;
/* Set the timeout: */
_thread_kern_set_timeout(NULL);
_thread_kern_sched_state(PS_FDW_WAIT, __FILE__, __LINE__);
tmpnamelen = sizeof(tmpname);
/* 0 now lets see if it really worked */
if (((ret = __sys_getpeername(fd, &tmpname, &tmpnamelen)) < 0) && (errno == ENOTCONN)) {
/*
* Get the error, this function
* should not fail
*/
errnolen = sizeof(errno);
__sys_getsockopt(fd, SOL_SOCKET, SO_ERROR, &errno, &errnolen);
}
} else {
ret = -1;
}
}
_FD_UNLOCK(fd, FD_RDWR);
}
return (ret);
}