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/*
* Copyright (c) 2014, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "hmi_message_handler/mqueue_adapter.h"
#include "hmi_message_handler/hmi_message_handler.h"
#include "utils/logger.h"
namespace hmi_message_handler {
const uint32_t kMqueueSize = 100;
const uint32_t kMqueueMessageSize = 65536;
const char* kSdlToHmiQueue = "/sdl_to_hmi";
const char* kHmiToSdlQueue = "/hmi_to_sdl";
CREATE_LOGGERPTR_GLOBAL(logger_, "HMIMessageHandler")
class ReceiverThreadDelegate : public threads::ThreadDelegate {
public:
ReceiverThreadDelegate(mqd_t mqueue_descriptor,
HMIMessageHandler* hmi_message_handler)
: mqueue_descriptor_(mqueue_descriptor)
, hmi_message_handler_(hmi_message_handler) {}
private:
virtual void threadMain() {
while (true) {
static char buffer[kMqueueMessageSize];
const ssize_t size =
mq_receive(mqueue_descriptor_, buffer, kMqueueMessageSize, NULL);
if (-1 == size) {
LOG4CXX_ERROR(logger_, "Message queue receive failed, error " << errno);
continue;
}
const std::string message_string(buffer, buffer + size);
LOG4CXX_DEBUG(logger_, "Message: " << message_string);
MessageSharedPointer message(new application_manager::Message(
protocol_handler::MessagePriority::kDefault));
message->set_json_message(message_string);
message->set_protocol_version(application_manager::ProtocolVersion::kHMI);
hmi_message_handler_->OnMessageReceived(message);
}
}
const mqd_t mqueue_descriptor_;
HMIMessageHandler* hmi_message_handler_;
};
MqueueAdapter::MqueueAdapter(HMIMessageHandler* hmi_message_handler)
: HMIMessageAdapterImpl(hmi_message_handler)
, sdl_to_hmi_mqueue_(-1)
, hmi_to_sdl_mqueue_(-1)
, receiver_thread_(NULL) {
mq_attr mq_attributes;
mq_attributes.mq_maxmsg = kMqueueSize;
mq_attributes.mq_msgsize = kMqueueMessageSize;
sdl_to_hmi_mqueue_ =
mq_open(kSdlToHmiQueue, O_CREAT | O_RDWR, S_IRWXU, &mq_attributes);
if (-1 == sdl_to_hmi_mqueue_) {
LOG4CXX_ERROR(logger_,
"Could not open message queue " << kSdlToHmiQueue
<< ", error " << errno);
return;
}
hmi_to_sdl_mqueue_ =
mq_open(kHmiToSdlQueue, O_CREAT | O_RDWR, S_IRWXU, &mq_attributes);
if (-1 == hmi_to_sdl_mqueue_) {
LOG4CXX_ERROR(logger_,
"Could not open message queue " << kHmiToSdlQueue
<< ", error " << errno);
return;
}
receiver_thread_delegate_ =
new ReceiverThreadDelegate(hmi_to_sdl_mqueue_, hmi_message_handler);
receiver_thread_ =
threads::CreateThread("MqueueAdapter", receiver_thread_delegate_);
receiver_thread_->start();
}
MqueueAdapter::~MqueueAdapter() {
receiver_thread_->join();
delete receiver_thread_delegate_;
threads::DeleteThread(receiver_thread_);
if (-1 != hmi_to_sdl_mqueue_)
mq_close(hmi_to_sdl_mqueue_);
if (-1 != sdl_to_hmi_mqueue_)
mq_close(sdl_to_hmi_mqueue_);
mq_unlink(kHmiToSdlQueue);
mq_unlink(kSdlToHmiQueue);
}
void MqueueAdapter::SendMessageToHMI(const MessageSharedPointer message) {
LOG4CXX_AUTO_TRACE(logger_);
if (-1 == sdl_to_hmi_mqueue_) {
LOG4CXX_ERROR(logger_, "Message queue is not opened");
return;
}
const std::string& json = message->json_message();
if (json.size() > kMqueueMessageSize) {
LOG4CXX_ERROR(logger_, "Message size " << json.size() << " is too big");
return;
}
const int rc = mq_send(sdl_to_hmi_mqueue_, json.c_str(), json.size(), 0);
if (0 != rc) {
LOG4CXX_ERROR(logger_, "Could not send message, error " << errno);
return;
}
}
void MqueueAdapter::SubscribeTo() {
// empty implementation of pure virtual method, actually it's not called
}
} // namespace hmi_message_handler
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