mirror of https://github.com/ARMmbed/mbed-os.git
82 lines
2.3 KiB
C++
82 lines
2.3 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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using mbed::Callback;
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TCPServer::TCPServer()
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{
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_socket_stats.stats_update_proto(this, NSAPI_TCP);
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}
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TCPServer::~TCPServer()
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{
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}
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nsapi_error_t TCPServer::accept(TCPSocket *connection, SocketAddress *address)
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{
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_lock.lock();
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nsapi_error_t ret;
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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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core_util_atomic_flag_clear(&_pending);
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void *socket;
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ret = _stack->socket_accept(_socket, &socket, address);
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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->_stack = _stack;
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connection->_socket = socket;
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connection->_event = Callback<void()>(connection, &TCPSocket::event);
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_stack->socket_attach(socket, &Callback<void()>::thunk, &connection->_event);
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_socket_stats.stats_update_peer(connection, *address);
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_socket_stats.stats_update_socket_state(connection, SOCK_CONNECTED);
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connection->_lock.unlock();
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break;
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} else if ((_timeout == 0) || (ret != NSAPI_ERROR_WOULD_BLOCK)) {
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break;
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} else {
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uint32_t flag;
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// Release lock before blocking so other threads
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// accessing this object aren't blocked
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_lock.unlock();
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flag = _event_flag.wait_any(READ_FLAG, _timeout);
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_lock.lock();
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if (flag & osFlagsError) {
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// Timeout break
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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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