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/*
* AsyncCommunication.h
*
* Copyright (C) ST-Ericsson SA 2011
* Authors: Srimanta Panda <srimanta.panda@stericsson.com>,
* Ola Borgelin <ola.borgelin@stericsson.com>,
* Karin Hedlund <karin.hedlund@stericsson.com>,
* Markus Andersson <markus.m.andersson@stericsson.com> for ST-Ericsson.
* License terms: 3-clause BSD license
*
*/
#pragma once
#include "CDAL.h"
#include "Event.h"
#include "Thread.h"
#include "CriticalSection.h"
struct commRequest {
void* buf;
int length;
DataCallback_t callback;
void* param;
bool isShutdown;
bool isActive;
};
class AsyncCommunication
{
public:
AsyncCommunication(CommDevice* device);
~AsyncCommunication();
int readNoWait(void* buf, int len, DataCallback_t fn, void* param);
int writeNoWait(void* buf, int len, DataCallback_t fn, void* param);
bool isReadActive() {
return readRequest_.isActive;
}
void waitReadCanceled();
private:
CommDevice* device_;
bool isReadInvoked_;
bool isWriteInvoked_;
commRequest readRequest_;
CriticalSection readCs_;
commRequest writeRequest_;
CriticalSection writeCs_;
Thread* readerThread_;
static void* threadReadProc(void*);
Event readRequestEvent_;
Event readCanceledEvent_;
Thread* writerThread_;
static void* threadWriteProc(void*);
Event writeRequestEvent_;
};
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