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/******************************************************************************
*
* Copyright (C) ST-Ericsson SA 2011
* License terms: 3-clause BSD license
*
******************************************************************************/
#include "BulkHandler.h"
#include "LCDriverMethods.h"
#include "Buffers.h"
#include "LcmInterface.h"
#include "Logger.h"
#include "Error.h"
#include "lcdriver_error_codes.h"
#include <string>
#include <cstdio>
using namespace std;
/// <summary>
/// BulkHandler constructor
/// </summary>
BulkHandler::BulkHandler(CLCDriverMethods *methods, Buffers *buffers, LcmInterface *lcmInterface, Logger *logger):
m_Methods(methods),
m_ReceiveQueue(32),
m_pBuffers(buffers),
m_pLcmInterface(lcmInterface),
m_pLogger(logger),
m_State(BULK_INACTIVE),
m_pFileWriteThread(0),
m_pBulkVector(0)
{
}
/// <summary>
/// BulkHandler destructor
/// </summary>
BulkHandler::~BulkHandler()
{
TL_BulkVectorList_t *bulkVector = 0;
while (true) {
RemoveResult result = m_ReceiveQueue.RemoveHead(reinterpret_cast<void **>(&bulkVector), 0);
if (REMOVE_TIMEOUT == result) {
break;
} else if (REMOVE_CANCEL == result) {
continue;
}
m_pLcmInterface->BulkDestroyVector(bulkVector, true);
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Vector destroyed BulkVector = 0x%x", m_pBulkVector);
#endif
}
}
int BulkHandler::Send(const string &sourceFile)
{
if (BULK_INACTIVE != m_State) {
return BULK_ALREADY_IN_PROGRESS;
}
m_sFilePath = sourceFile;
m_State = BULK_TX;
return 0;
}
int BulkHandler::Receive(const string &destinationFile)
{
if (BULK_INACTIVE != m_State) {
return BULK_ALREADY_IN_PROGRESS;
}
m_sFilePath = destinationFile;
// truncate the file for receiving
FILE *file = fopen(m_sFilePath.c_str(), "wb");
if (!file) {
return FILE_OPENING_ERROR;
}
fclose(file);
m_State = BULK_RX;
// start bulk file write thread
m_pFileWriteThread = new CThreadWrapper(FileWriteThreadFunction, this);
m_pFileWriteThread->ResumeThread();
return 0;
}
void BulkHandler::Finish(bool ForceFinish)
{
if (BULK_RX == m_State) {
m_State = BULK_INACTIVE;
m_ReceiveQueue.SignalEvent();
m_pFileWriteThread->WaitToDie(INFINITE);
} else if (m_State != BULK_INACTIVE) {
m_State = BULK_INACTIVE;
if (ForceFinish) {
m_pBulkVector->State = CANCEL_BULK;
}
}
}
void BulkHandler::HandleCommandRequest(uint16 session, uint32 chunkSize, uint64 offset, uint32 length, bool acknowledge)
{
switch (SELECT_COMMAND(m_State, acknowledge)) {
case BULK_WRITE_REQUEST:
HandleWriteRequest(session, chunkSize, offset, length);
break;
case BULK_READ_REQUEST:
HandleReadRequest(session, chunkSize, offset, length);
break;
case BULK_RX_SESSION_END:
HandleRxSessionEnd(session, chunkSize, offset, length);
break;
case BULK_TX_SESSION_END:
HandleTxSessionEnd(session, chunkSize, offset, length);
break;
default:
break;
}
}
void BulkHandler::HandleWriteRequest(uint16 session, uint32 chunkSize, uint64 offset, uint32 length)
{
int ReturnValue = E_SUCCESS;
uint32 VectorID = m_pLcmInterface->BulkOpenSession(session, BULK_RECEIVE, length);
VERIFY(BULK_ERROR != VectorID, BULK_VECTOR_ID_ERROR);
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Session opened with VectorID = %u", VectorID);
#endif
m_pBulkVector = m_pLcmInterface->BulkCreateVector(VectorID, length, chunkSize, NULL);
VERIFY_SUCCESS(m_pLcmInterface->BulkStartSession(m_pBulkVector, offset));
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Session %u started with BulkVector = 0x%x", session, m_pBulkVector);
#endif
ErrorExit:
if (E_SUCCESS != ReturnValue) {
m_Methods->SignalError(ReturnValue);
}
}
void BulkHandler::HandleReadRequest(uint16 session, uint32 chunkSize, uint64 offset, uint32 length)
{
int ReturnValue = E_SUCCESS;
uint32 VectorID = m_pLcmInterface->BulkOpenSession(session, BULK_SEND, length);
VERIFY(BULK_ERROR != VectorID, BULK_VECTOR_ID_ERROR);
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Session opened with VectorID = %u", VectorID);
#endif
m_pBulkVector = m_pLcmInterface->BulkCreateVector(VectorID, length, chunkSize, NULL);
VERIFY_SUCCESS(m_pBuffers->AllocateBulkVector(m_pBulkVector, chunkSize, offset, length));
VERIFY_SUCCESS(m_pLcmInterface->BulkStartSession(m_pBulkVector, offset));
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Session %u started with BulkVector = 0x%x", session, m_pBulkVector);
#endif
ErrorExit:
if (E_SUCCESS != ReturnValue) {
m_Methods->SignalError(ReturnValue);
}
}
void BulkHandler::HandleRxSessionEnd(uint16 session, uint32 chunkSize, uint64 offset, uint32 length)
{
int ReturnValue = E_SUCCESS;
m_ReceiveQueue.AddTail(m_pBulkVector);
VERIFY_SUCCESS(m_pLcmInterface->BulkCloseSession(m_pBulkVector));
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Session closed Session = %u", session);
#endif
m_Methods->UpdateBulkProgress();
ErrorExit:
if (E_SUCCESS != ReturnValue) {
m_Methods->SignalError(ReturnValue);
}
}
void BulkHandler::HandleTxSessionEnd(uint16 session, uint32 chunkSize, uint64 offset, uint32 length)
{
int ReturnValue = E_SUCCESS;
m_pBuffers->ReleaseBulkVector(m_pBulkVector);
VERIFY_SUCCESS(m_pLcmInterface->BulkDestroyVector(m_pBulkVector, false));
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Vector destroyed BulkVector = 0x%x", m_pBulkVector);
#endif
m_Methods->UpdateBulkProgress();
ErrorExit:
if (E_SUCCESS != ReturnValue) {
m_Methods->SignalError(ReturnValue);
}
}
void BulkHandler::FlushReceiveQueue()
{
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Flush receive queue");
#endif
TL_BulkVectorList_t *bulkVector = 0;
while (true) {
RemoveResult result = m_ReceiveQueue.RemoveHead(reinterpret_cast<void **>(&bulkVector), 0);
if (REMOVE_TIMEOUT == result) {
break;
} else if (REMOVE_CANCEL == result) {
continue;
}
WriteBulkVector(bulkVector);
m_pLcmInterface->BulkDestroyVector(bulkVector, true);
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Vector destroyed BulkVector = 0x%x", bulkVector);
#endif
}
}
void BulkHandler::WriteBulkVector(TL_BulkVectorList_t *bulkVector)
{
FILE *file = fopen(m_sFilePath.c_str(), "ab");
if (file) {
for (size_t i = 0; i != bulkVector->Buffers; ++i) {
uint32 currentChunkSize = bulkVector->ChunkSize;
if (i + 1 == bulkVector->Buffers) { //lastchunk
currentChunkSize = bulkVector->Length - (i * bulkVector->ChunkSize);
}
fwrite(bulkVector->Entries[i].Payload_p, currentChunkSize, 1, file);
}
fclose(file);
#ifdef _BULKDEBUG
m_pLogger->log("BULK: Vector written BulkVector = 0x%x", m_pBulkVector);
#endif
}
}
#ifdef _WIN32
unsigned int WINAPI BulkHandler::FileWriteThreadFunction(void *arg)
#else
void *BulkHandler::FileWriteThreadFunction(void *arg)
#endif
{
BulkHandler *pThis = static_cast<BulkHandler *>(arg);
TL_BulkVectorList_t *bulkVector = 0;
while (true) {
RemoveResult result = pThis->m_ReceiveQueue.RemoveHead(reinterpret_cast<void **>(&bulkVector), INFINITE);
if (REMOVE_SUCCESS == result) {
pThis->WriteBulkVector(bulkVector);
pThis->m_pLcmInterface->BulkDestroyVector(bulkVector, true);
#ifdef _BULKDEBUG
pThis->m_pLogger->log("BULK: Vector destroyed BulkVector = 0x%x", bulkVector);
#endif
} else {
break;
}
}
pThis->FlushReceiveQueue();
return 0;
}
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