/*
* Accept incoming connections
*/
PJ_DEF(pj_status_t) pj_sock_accept( pj_sock_t serverfd,
pj_sock_t *newsock,
pj_sockaddr_t *addr,
int *addrlen)
{
PJ_CHECK_STACK();
PJ_ASSERT_RETURN(serverfd && newsock, PJ_EINVAL);
CPjSocket *pjSock = (CPjSocket*)serverfd;
RSocket &rSock = pjSock->Socket();
// Create a 'blank' socket
RSocket newSock;
newSock.Open(PjSymbianOS::Instance()->SocketServ());
// Call Accept()
TRequestStatus reqStatus;
rSock.Accept(newSock, reqStatus);
User::WaitForRequest(reqStatus);
if (reqStatus != KErrNone) {
return PJ_RETURN_OS_ERROR(reqStatus.Int());
}
// Create PJ socket
CPjSocket *newPjSock = new CPjSocket(pjSock->GetAf(), pjSock->GetSockType(),
newSock);
newPjSock->SetConnected(true);
*newsock = (pj_sock_t) newPjSock;
if (addr && addrlen) {
return pj_sock_getpeername(*newsock, addr, addrlen);
}
return PJ_SUCCESS;
}
//
// Get peer socket name.
//
pj_status_t getpeername(Pj_Inet_Addr *addr)
{
return pj_sock_getpeername(sock_, addr, &addr->addrlen_);
}
/*
* ioqueue_dispatch_event()
*
* Report occurence of an event in the key to be processed by the
* framework.
*/
void ioqueue_dispatch_write_event(pj_ioqueue_t *ioqueue, pj_ioqueue_key_t *h)
{
/* Lock the key. */
pj_ioqueue_lock_key(h);
if (IS_CLOSING(h)) {
pj_ioqueue_unlock_key(h);
return;
}
#if defined(PJ_HAS_TCP) && PJ_HAS_TCP!=0
if (h->connecting) {
/* Completion of connect() operation */
pj_status_t status;
pj_bool_t has_lock;
/* Clear operation. */
h->connecting = 0;
ioqueue_remove_from_set(ioqueue, h, WRITEABLE_EVENT);
ioqueue_remove_from_set(ioqueue, h, EXCEPTION_EVENT);
#if (defined(PJ_HAS_SO_ERROR) && PJ_HAS_SO_ERROR!=0)
/* from connect(2):
* On Linux, use getsockopt to read the SO_ERROR option at
* level SOL_SOCKET to determine whether connect() completed
* successfully (if SO_ERROR is zero).
*/
{
int value;
int vallen = sizeof(value);
int gs_rc = pj_sock_getsockopt(h->fd, SOL_SOCKET, SO_ERROR,
&value, &vallen);
if (gs_rc != 0) {
/* Argh!! What to do now???
* Just indicate that the socket is connected. The
* application will get error as soon as it tries to use
* the socket to send/receive.
*/
status = PJ_SUCCESS;
} else {
status = PJ_STATUS_FROM_OS(value);
}
}
#elif (defined(PJ_WIN32) && PJ_WIN32!=0) || (defined(PJ_WIN64) && PJ_WIN64!=0)
status = PJ_SUCCESS; /* success */
#else
/* Excellent information in D.J. Bernstein page:
* http://cr.yp.to/docs/connect.html
*
* Seems like the most portable way of detecting connect()
* failure is to call getpeername(). If socket is connected,
* getpeername() will return 0. If the socket is not connected,
* it will return ENOTCONN, and read(fd, &ch, 1) will produce
* the right errno through error slippage. This is a combination
* of suggestions from Douglas C. Schmidt and Ken Keys.
*/
{
struct sockaddr_in addr;
int addrlen = sizeof(addr);
status = pj_sock_getpeername(h->fd, (struct sockaddr*)&addr,
&addrlen);
}
#endif
/* Unlock; from this point we don't need to hold key's mutex
* (unless concurrency is disabled, which in this case we should
* hold the mutex while calling the callback) */
if (h->allow_concurrent) {
/* concurrency may be changed while we're in the callback, so
* save it to a flag.
*/
has_lock = PJ_FALSE;
pj_ioqueue_unlock_key(h);
} else {
has_lock = PJ_TRUE;
}
/* Call callback. */
if (h->cb.on_connect_complete && !IS_CLOSING(h))
(*h->cb.on_connect_complete)(h, status);
/* Unlock if we still hold the lock */
if (has_lock) {
pj_ioqueue_unlock_key(h);
}
/* Done. */
} else
#endif /* PJ_HAS_TCP */
if (key_has_pending_write(h)) {
/* Socket is writable. */
struct write_operation *write_op;
pj_ssize_t sent;
pj_status_t send_rc = PJ_SUCCESS;
/* Get the first in the queue. */
write_op = h->write_list.next;
/* For datagrams, we can remove the write_op from the list
* so that send() can work in parallel.
*/
if (h->fd_type == pj_SOCK_DGRAM()) {
pj_list_erase(write_op);
if (pj_list_empty(&h->write_list))
ioqueue_remove_from_set(ioqueue, h, WRITEABLE_EVENT);
}
/* Send the data.
* Unfortunately we must do this while holding key's mutex, thus
* preventing parallel write on a single key.. :-((
*/
sent = write_op->size - write_op->written;
if (write_op->op == PJ_IOQUEUE_OP_SEND) {
send_rc = pj_sock_send(h->fd, write_op->buf+write_op->written,
&sent, write_op->flags);
/* Can't do this. We only clear "op" after we're finished sending
* the whole buffer.
*/
//write_op->op = 0;
} else if (write_op->op == PJ_IOQUEUE_OP_SEND_TO) {
int retry = 2;
while (--retry >= 0) {
send_rc = pj_sock_sendto(h->fd,
write_op->buf+write_op->written,
&sent, write_op->flags,
&write_op->rmt_addr,
write_op->rmt_addrlen);
#if defined(PJ_IPHONE_OS_HAS_MULTITASKING_SUPPORT) && \
PJ_IPHONE_OS_HAS_MULTITASKING_SUPPORT!=0
/* Special treatment for dead UDP sockets here, see ticket #1107 */
if (send_rc==PJ_STATUS_FROM_OS(EPIPE) && !IS_CLOSING(h) &&
h->fd_type==pj_SOCK_DGRAM())
{
PJ_PERROR(4,(THIS_FILE, send_rc,
"Send error for socket %d, retrying",
h->fd));
replace_udp_sock(h);
continue;
}
#endif
break;
}
/* Can't do this. We only clear "op" after we're finished sending
* the whole buffer.
*/
//write_op->op = 0;
} else {
pj_assert(!"Invalid operation type!");
write_op->op = PJ_IOQUEUE_OP_NONE;
send_rc = PJ_EBUG;
}
if (send_rc == PJ_SUCCESS) {
write_op->written += sent;
} else {
pj_assert(send_rc > 0);
write_op->written = -send_rc;
}
/* Are we finished with this buffer? */
if (send_rc!=PJ_SUCCESS ||
write_op->written == (pj_ssize_t)write_op->size ||
h->fd_type == pj_SOCK_DGRAM())
{
pj_bool_t has_lock;
write_op->op = PJ_IOQUEUE_OP_NONE;
if (h->fd_type != pj_SOCK_DGRAM()) {
/* Write completion of the whole stream. */
pj_list_erase(write_op);
/* Clear operation if there's no more data to send. */
if (pj_list_empty(&h->write_list))
ioqueue_remove_from_set(ioqueue, h, WRITEABLE_EVENT);
}
/* Unlock; from this point we don't need to hold key's mutex
* (unless concurrency is disabled, which in this case we should
* hold the mutex while calling the callback) */
if (h->allow_concurrent) {
/* concurrency may be changed while we're in the callback, so
* save it to a flag.
*/
has_lock = PJ_FALSE;
pj_ioqueue_unlock_key(h);
PJ_RACE_ME(5);
} else {
has_lock = PJ_TRUE;
}
/* Call callback. */
if (h->cb.on_write_complete && !IS_CLOSING(h)) {
(*h->cb.on_write_complete)(h,
(pj_ioqueue_op_key_t*)write_op,
write_op->written);
}
if (has_lock) {
pj_ioqueue_unlock_key(h);
}
} else {
pj_ioqueue_unlock_key(h);
}
/* Done. */
} else {
/*
* This is normal; execution may fall here when multiple threads
* are signalled for the same event, but only one thread eventually
* able to process the event.
*/
pj_ioqueue_unlock_key(h);
}
}
