int
_socketpair(int af, int type, int protocol, int pair[2])
{
int ret;
if (!((ret = __sys_socketpair(af, type, protocol, pair)) < 0))
if (_thread_fd_table_init(pair[0]) != 0 ||
_thread_fd_table_init(pair[1]) != 0) {
__sys_close(pair[0]);
__sys_close(pair[1]);
ret = -1;
}
return (ret);
}
int
pipe(int fds[2])
{
int ret;
if ((ret = _thread_sys_pipe(fds)) >= 0) {
if (_thread_fd_table_init(fds[0], FD_INIT_NEW, NULL) != 0 ||
_thread_fd_table_init(fds[1], FD_INIT_NEW, NULL) != 0) {
_thread_sys_close(fds[0]);
_thread_sys_close(fds[1]);
ret = -1;
}
}
return (ret);
}
int
_dup(int fd)
{
int ret;
/* Lock the file descriptor: */
if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) {
/* Perform the 'dup' syscall: */
if ((ret = __sys_dup(fd)) < 0) {
}
/* Initialise the file descriptor table entry: */
else if (_thread_fd_table_init(ret) != 0) {
/* Quietly close the file: */
__sys_close(ret);
/* Reset the file descriptor: */
ret = -1;
} else {
/*
* Save the file open flags so that they can be
* checked later:
*/
_thread_fd_setflags(ret, _thread_fd_getflags(fd));
}
/* Unlock the file descriptor: */
_FD_UNLOCK(fd, FD_RDWR);
}
/* Return the completion status: */
return (ret);
}
int
socket(int af, int type, int protocol)
{
int fd;
/* Create a socket: */
if ((fd = _thread_sys_socket(af, type, protocol)) < 0) {
/* Error creating socket. */
/* Initialise the entry in the file descriptor table: */
} else if (_thread_fd_table_init(fd, FD_INIT_NEW, NULL) != 0) {
_thread_sys_close(fd);
fd = -1;
}
return (fd);
}
int
kqueue(void)
{
int fd;
/* Create a kqueue: */
if ((fd = _thread_sys_kqueue()) < 0) {
/* Error creating socket. */
/* Initialise the entry in the file descriptor table: */
} else if (_thread_fd_table_init(fd, FD_INIT_NEW, NULL) != 0) {
_thread_sys_close(fd);
fd = -1;
}
return (fd);
}
int
dup(int fd)
{
int ret;
ret = _FD_LOCK(fd, FD_RDWR, NULL);
if (ret == 0) {
ret = _thread_sys_dup(fd);
if (ret != -1) {
if (_thread_fd_table_init(ret, FD_INIT_DUP,
_thread_fd_table[fd]->status_flags) == -1) {
_thread_sys_close(ret);
ret = -1;
}
}
_FD_UNLOCK(fd, FD_RDWR);
}
return (ret);
}
int
getsockopt(int fd, int level, int optname, void *optval, socklen_t *optlen)
{
int ret;
struct fd_table_entry *entry;
ret = _thread_fd_table_init(fd, FD_INIT_UNKNOWN, NULL);
if (ret == 0) {
entry = _thread_fd_table[fd];
_thread_kern_sig_defer();
if (entry->state == FD_ENTRY_OPEN) {
ret = _thread_sys_getsockopt(fd, level, optname, optval, optlen);
} else {
ret = -1;
errno = EBADF;
}
_thread_kern_sig_undefer();
}
return ret;
}
int
accept(int fd, struct sockaddr * name, socklen_t *namelen)
{
struct pthread *curthread = _get_curthread();
int ret;
int newfd;
enum fd_entry_mode init_mode;
/* This is a cancellation point: */
_thread_enter_cancellation_point();
/* Lock the file descriptor: */
if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) {
/* Enter a loop to wait for a connection request: */
while ((ret = _thread_sys_accept(fd, name, namelen)) < 0) {
/* Check if the socket is to block: */
if ((_thread_fd_table[fd]->status_flags->flags & O_NONBLOCK) == 0 &&
(errno == EWOULDBLOCK || errno == EAGAIN)) {
/* Save the socket file descriptor: */
curthread->data.fd.fd = fd;
curthread->data.fd.fname = __FILE__;
curthread->data.fd.branch = __LINE__;
/* Set the timeout: */
_thread_kern_set_timeout(NULL);
curthread->interrupted = 0;
curthread->closing_fd = 0;
/* Schedule the next thread: */
_thread_kern_sched_state(PS_FDR_WAIT, __FILE__,
__LINE__);
/* Check if the wait was interrupted: */
if (curthread->interrupted) {
/* Return an error status: */
errno = EINTR;
ret = -1;
break;
} else if (curthread->closing_fd) {
/* Return an error status: */
errno = EBADF;
ret = -1;
break;
}
} else {
/*
* Another error has occurred, so exit the
* loop here:
*/
break;
}
}
/*
* If no errors initialize the file descriptor table
* for the new socket. If the client's view of the
* status_flags for fd is blocking, then force newfd
* to be viewed as blocking too.
*/
if (ret != -1) {
newfd = ret;
if ((_thread_fd_table[fd]->status_flags->flags & O_NONBLOCK) == 0)
init_mode = FD_INIT_BLOCKING;
else
init_mode = FD_INIT_NEW;
if((ret = _thread_fd_table_init(newfd, init_mode, NULL)) != -1)
ret = newfd;
else {
/* quitely close the fd */
_thread_sys_close(ret);
}
}
/* Unlock the file descriptor: */
_FD_UNLOCK(fd, FD_RDWR);
}
/* No longer in a cancellation point: */
_thread_leave_cancellation_point();
/* Return the socket file descriptor or -1 on error: */
return (ret);
}