mirror of https://github.com/ARMmbed/mbed-os.git
107 lines
3.0 KiB
C++
107 lines
3.0 KiB
C++
/*
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* Copyright (c) 2018, Arm Limited and affiliates.
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* SPDX-License-Identifier: Apache-2.0
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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 "ATHandler.h"
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#include "SingletonPtr.h"
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using namespace mbed;
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ATHandler *ATHandler::_atHandlers = NULL;
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// each parser is associated with one filehandle (that is UART)
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ATHandler *ATHandler::get_instance(FileHandle *fileHandle, events::EventQueue &queue, uint32_t timeout,
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const char *delimiter, uint16_t send_delay, bool debug_on)
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{
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if (!fileHandle) {
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return NULL;
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}
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singleton_lock();
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ATHandler *atHandler = _atHandlers;
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while (atHandler) {
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if (atHandler->get_file_handle() == fileHandle) {
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atHandler->inc_ref_count();
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singleton_unlock();
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return atHandler;
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}
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atHandler = atHandler->_nextATHandler;
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}
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atHandler = new ATHandler(fileHandle, queue, timeout, delimiter, send_delay);
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if (debug_on) {
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atHandler->set_debug(debug_on);
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}
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atHandler->_nextATHandler = _atHandlers;
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_atHandlers = atHandler;
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singleton_unlock();
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return atHandler;
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}
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nsapi_error_t ATHandler::close()
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{
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if (get_ref_count() == 0) {
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return NSAPI_ERROR_PARAMETER;
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}
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singleton_lock();
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dec_ref_count();
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if (get_ref_count() == 0) {
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// we can delete this at_handler
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ATHandler *atHandler = _atHandlers;
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ATHandler *prev = NULL;
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while (atHandler) {
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if (atHandler == this) {
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if (prev == NULL) {
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_atHandlers = _atHandlers->_nextATHandler;
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} else {
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prev->_nextATHandler = atHandler->_nextATHandler;
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}
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delete this;
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break;
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} else {
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prev = atHandler;
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atHandler = atHandler->_nextATHandler;
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}
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}
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}
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singleton_unlock();
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return NSAPI_ERROR_OK;
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}
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void ATHandler::set_at_timeout_list(uint32_t timeout_milliseconds, bool default_timeout)
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{
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ATHandler *atHandler = _atHandlers;
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singleton_lock();
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while (atHandler) {
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atHandler->set_at_timeout(timeout_milliseconds, default_timeout);
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atHandler = atHandler->_nextATHandler;
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}
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singleton_unlock();
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}
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void ATHandler::set_debug_list(bool debug_on)
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{
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ATHandler *atHandler = _atHandlers;
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singleton_lock();
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while (atHandler) {
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atHandler->set_debug(debug_on);
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atHandler = atHandler->_nextATHandler;
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}
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singleton_unlock();
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}
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