tahoma2d/toonz/sources/common/tipc/tipcmsg.cpp
2016-06-15 15:43:10 +09:00

175 lines
4.8 KiB
C++

// Toonz includes
#include "traster.h"
#include "timage_io.h"
// Qt includes
#include <QIODevice>
#include <QSharedMemory>
#include <QTemporaryFile>
#include <QDir>
#include <QFile>
#include <QCoreApplication>
// tipc includes
#include "tipc.h"
#include "tipcmsg.h"
//---------------------------------------------------------------------
// Local stuff
namespace {
QHash<QString, QSharedMemory *> sharedMemories;
QHash<QString, QString> temporaryFiles;
}
//---------------------------------------------------------------------
namespace tipc {
//*******************************************************************************
// Shared Memory Request
//*******************************************************************************
template <>
QString DefaultMessageParser<SHMEM_REQUEST>::header() const {
return QString("$shmem_request");
}
//------------------------------------------------------------------
template <>
void DefaultMessageParser<SHMEM_REQUEST>::operator()(Message &msg) {
int size;
QString id;
msg >> id >> size >> clr;
QSharedMemory *mem = new QSharedMemory(id);
bool ok = (tipc::create(*mem, size) > 0);
if (!ok) {
msg << QString("err");
delete mem;
return;
}
sharedMemories.insert(id, mem);
msg << QString("ok");
}
//*******************************************************************************
// Shared Memory Release
//*******************************************************************************
template <>
QString DefaultMessageParser<SHMEM_RELEASE>::header() const {
return QString("$shmem_release");
}
//------------------------------------------------------------------
template <>
void DefaultMessageParser<SHMEM_RELEASE>::operator()(Message &msg) {
QString id;
msg >> id >> clr;
QSharedMemory *mem = sharedMemories.take(id);
if (mem) delete mem;
msg << QString("ok");
}
//*******************************************************************************
// Temporary File Request
//*******************************************************************************
template <>
QString DefaultMessageParser<TMPFILE_REQUEST>::header() const {
return QString("$tmpfile_request");
}
//------------------------------------------------------------------
template <>
void DefaultMessageParser<TMPFILE_REQUEST>::operator()(Message &msg) {
QString id;
msg >> id >> clr;
// Build a temporary file with passed id group.
// The created QTemporaryFile CANNOT be stored directly, as it internally
// keeps the file open until the object is destroyed. Instead, we store its
// filePath and manually remove it upon release.
QTemporaryFile tmp(QDir::temp().filePath(id));
tmp.setAutoRemove(false);
if (!tmp.open()) {
msg << QString("err");
return;
}
temporaryFiles.insert(id, tmp.fileName());
msg << QString("ok") << tmp.fileName();
}
//*******************************************************************************
// Temporary File Release
//*******************************************************************************
template <>
QString DefaultMessageParser<TMPFILE_RELEASE>::header() const {
return QString("$tmpfile_release");
}
//------------------------------------------------------------------
template <>
void DefaultMessageParser<TMPFILE_RELEASE>::operator()(Message &msg) {
QString id;
msg >> id >> clr;
QString tmpPath = temporaryFiles.take(id);
if (!tmpPath.isEmpty()) {
QFile file(tmpPath);
file.remove();
}
msg << QString("ok");
}
//*******************************************************************************
// Quit On Error
//*******************************************************************************
template <>
QString DefaultMessageParser<QUIT_ON_ERROR>::header() const {
return QString("$quit_on_error");
}
//------------------------------------------------------------------
template <>
void DefaultMessageParser<QUIT_ON_ERROR>::operator()(Message &msg) {
QObject::connect(socket(), SIGNAL(error(QLocalSocket::LocalSocketError)),
QCoreApplication::instance(), SLOT(quit()));
// In Qt 5.5 originating process's termination emits 'disconnected' instead of
// 'error'
QObject::connect(socket(), SIGNAL(disconnected()),
QCoreApplication::instance(), SLOT(quit()));
msg << clr << QString("ok");
}
//*******************************************************************************
// Explicit template instantiation for all basic datatypes
//*******************************************************************************
//-------------------------- Default Messages ---------------------------
template class DefaultMessageParser<SHMEM_REQUEST>;
template class DefaultMessageParser<SHMEM_RELEASE>;
template class DefaultMessageParser<TMPFILE_REQUEST>;
template class DefaultMessageParser<TMPFILE_RELEASE>;
template class DefaultMessageParser<QUIT_ON_ERROR>;
} // namespace tipc