mirror of https://github.com/ARMmbed/mbed-os.git
102 lines
2.2 KiB
C++
102 lines
2.2 KiB
C++
/* Socket
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* Copyright (c) 2015 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "TCPServer.h"
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#include "Timer.h"
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TCPServer::TCPServer(): _accept_sem(0)
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{
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}
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TCPServer::TCPServer(NetworkStack *iface): _accept_sem(0)
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{
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open(iface);
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}
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int TCPServer::open(NetworkStack *iface)
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{
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return Socket::open(iface, NSAPI_TCP);
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}
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int TCPServer::listen(int backlog)
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{
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_lock.lock();
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int ret = NSAPI_ERROR_NO_SOCKET;
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if (_socket) {
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ret = _iface->socket_listen(_socket, backlog);
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}
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_lock.unlock();
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return ret;
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}
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int TCPServer::accept(TCPSocket *connection)
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{
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_lock.lock();
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int ret = NSAPI_ERROR_NO_SOCKET;
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while (true) {
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if (!_socket) {
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ret = NSAPI_ERROR_NO_SOCKET;
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break;
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}
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void *socket;
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ret = _iface->socket_accept(&socket, _socket);
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if (0 == ret) {
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connection->_lock.lock();
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if (connection->_socket) {
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connection->close();
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}
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connection->_iface = _iface;
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connection->_socket = socket;
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_iface->socket_attach(socket, &Socket::thunk, connection);
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connection->_lock.unlock();
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break;
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}
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if (NSAPI_ERROR_WOULD_BLOCK == ret) {
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int32_t count;
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_lock.unlock();
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count = _accept_sem.wait(_timeout);
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_lock.lock();
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if (count < 1) {
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ret = NSAPI_ERROR_WOULD_BLOCK;
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break;
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}
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}
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}
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_lock.unlock();
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return ret;
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}
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void TCPServer::socket_event()
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{
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int32_t status = _accept_sem.wait(0);
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if (status <= 1) {
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_accept_sem.release();
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}
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Socket::socket_event();
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}
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