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jack2/common/JackRequestDecoder.cpp

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/*
Copyright (C) 2012 Grame
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "JackRequestDecoder.h"
#include "JackServer.h"
#include "JackLockedEngine.h"
#include "JackChannel.h"
#include <assert.h>
#include <signal.h>
using namespace std;
namespace Jack
{
#define CheckRead(req, socket) { if (req.Read(socket) < 0) { jack_error("CheckRead error"); return -1; } }
#define CheckWriteName(error, socket) { if (res.Write(socket) < 0) { jack_error("%s write error name = %s", error, req.fName); } }
#define CheckWriteRefNum(error, socket) { if (res.Write(socket) < 0) { jack_error("%s write error ref = %d", error, req.fRefNum); } }
#define CheckWrite(error, socket) { if (res.Write(socket) < 0) { jack_error("%s write error", error); } }
JackRequestDecoder::JackRequestDecoder(JackServer* server, JackClientHandlerInterface* handler)
:fServer(server), fHandler(handler)
{}
JackRequestDecoder::~JackRequestDecoder()
{}
int JackRequestDecoder::HandleRequest(detail::JackChannelTransactionInterface* socket, int type_aux)
{
JackRequest::RequestType type = (JackRequest::RequestType)type_aux;
// Read data
switch (type) {
case JackRequest::kClientCheck: {
jack_log("JackRequest::ClientCheck");
JackClientCheckRequest req;
JackClientCheckResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->ClientCheck(req.fName, req.fUUID, res.fName, req.fProtocol, req.fOptions, &res.fStatus);
CheckWriteName("JackRequest::ClientCheck", socket);
// Atomic ClientCheck followed by ClientOpen on same socket
if (req.fOpen) {
JackRequest header;
header.Read(socket);
return HandleRequest(socket, header.fType);
}
break;
}
case JackRequest::kClientOpen: {
jack_log("JackRequest::ClientOpen");
JackClientOpenRequest req;
JackClientOpenResult res;
CheckRead(req, socket);
fHandler->ClientAdd(socket, &req, &res);
CheckWriteName("JackRequest::ClientOpen", socket);
break;
}
case JackRequest::kClientClose: {
jack_log("JackRequest::ClientClose");
JackClientCloseRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->ClientExternalClose(req.fRefNum);
CheckWriteRefNum("JackRequest::ClientClose", socket);
fHandler->ClientRemove(socket, req.fRefNum);
// Will cause the wrapping thread to stop
return -1;
}
case JackRequest::kActivateClient: {
JackActivateRequest req;
JackResult res;
jack_log("JackRequest::ActivateClient");
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->ClientActivate(req.fRefNum, req.fIsRealTime);
CheckWriteRefNum("JackRequest::ActivateClient", socket);
break;
}
case JackRequest::kDeactivateClient: {
jack_log("JackRequest::DeactivateClient");
JackDeactivateRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->ClientDeactivate(req.fRefNum);
CheckWriteRefNum("JackRequest::DeactivateClient", socket);
break;
}
case JackRequest::kRegisterPort: {
jack_log("JackRequest::RegisterPort");
JackPortRegisterRequest req;
JackPortRegisterResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->PortRegister(req.fRefNum, req.fName, req.fPortType, req.fFlags, req.fBufferSize, &res.fPortIndex);
CheckWriteRefNum("JackRequest::RegisterPort", socket);
break;
}
case JackRequest::kUnRegisterPort: {
jack_log("JackRequest::UnRegisterPort");
JackPortUnRegisterRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->PortUnRegister(req.fRefNum, req.fPortIndex);
CheckWriteRefNum("JackRequest::UnRegisterPort", socket);
break;
}
case JackRequest::kConnectNamePorts: {
jack_log("JackRequest::ConnectNamePorts");
JackPortConnectNameRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->PortConnect(req.fRefNum, req.fSrc, req.fDst);
CheckWriteRefNum("JackRequest::ConnectNamePorts", socket);
break;
}
case JackRequest::kDisconnectNamePorts: {
jack_log("JackRequest::DisconnectNamePorts");
JackPortDisconnectNameRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->PortDisconnect(req.fRefNum, req.fSrc, req.fDst);
CheckWriteRefNum("JackRequest::DisconnectNamePorts", socket);
break;
}
case JackRequest::kConnectPorts: {
jack_log("JackRequest::ConnectPorts");
JackPortConnectRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->PortConnect(req.fRefNum, req.fSrc, req.fDst);
CheckWriteRefNum("JackRequest::ConnectPorts", socket);
break;
}
case JackRequest::kDisconnectPorts: {
jack_log("JackRequest::DisconnectPorts");
JackPortDisconnectRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->PortDisconnect(req.fRefNum, req.fSrc, req.fDst);
CheckWriteRefNum("JackRequest::DisconnectPorts", socket);
break;
}
case JackRequest::kPortRename: {
jack_log("JackRequest::PortRename");
JackPortRenameRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->PortRename(req.fRefNum, req.fPort, req.fName);
CheckWriteRefNum("JackRequest::PortRename", socket);
break;
}
case JackRequest::kSetBufferSize: {
jack_log("JackRequest::SetBufferSize");
JackSetBufferSizeRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->SetBufferSize(req.fBufferSize);
CheckWrite("JackRequest::SetBufferSize", socket);
break;
}
case JackRequest::kSetFreeWheel: {
jack_log("JackRequest::SetFreeWheel");
JackSetFreeWheelRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->SetFreewheel(req.fOnOff);
CheckWrite("JackRequest::SetFreeWheel", socket);
break;
}
case JackRequest::kComputeTotalLatencies: {
jack_log("JackRequest::ComputeTotalLatencies");
JackComputeTotalLatenciesRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->ComputeTotalLatencies();
CheckWrite("JackRequest::ComputeTotalLatencies", socket);
break;
}
case JackRequest::kReleaseTimebase: {
jack_log("JackRequest::ReleaseTimebase");
JackReleaseTimebaseRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->ReleaseTimebase(req.fRefNum);
CheckWriteRefNum("JackRequest::ReleaseTimebase", socket);
break;
}
case JackRequest::kSetTimebaseCallback: {
jack_log("JackRequest::SetTimebaseCallback");
JackSetTimebaseCallbackRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->SetTimebaseCallback(req.fRefNum, req.fConditionnal);
CheckWriteRefNum("JackRequest::SetTimebaseCallback", socket);
break;
}
case JackRequest::kGetInternalClientName: {
jack_log("JackRequest::GetInternalClientName");
JackGetInternalClientNameRequest req;
JackGetInternalClientNameResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->GetInternalClientName(req.fIntRefNum, res.fName);
CheckWriteRefNum("JackRequest::GetInternalClientName", socket);
break;
}
case JackRequest::kInternalClientHandle: {
jack_log("JackRequest::InternalClientHandle");
JackInternalClientHandleRequest req;
JackInternalClientHandleResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->InternalClientHandle(req.fName, &res.fStatus, &res.fIntRefNum);
CheckWriteRefNum("JackRequest::InternalClientHandle", socket);
break;
}
case JackRequest::kInternalClientLoad: {
jack_log("JackRequest::InternalClientLoad");
JackInternalClientLoadRequest req;
JackInternalClientLoadResult res;
CheckRead(req, socket);
res.fResult = fServer->InternalClientLoad1(req.fName, req.fDllName, req.fLoadInitName, req.fOptions, &res.fIntRefNum, req.fUUID, &res.fStatus);
CheckWriteName("JackRequest::InternalClientLoad", socket);
break;
}
case JackRequest::kInternalClientUnload: {
jack_log("JackRequest::InternalClientUnload");
JackInternalClientUnloadRequest req;
JackInternalClientUnloadResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->InternalClientUnload(req.fIntRefNum, &res.fStatus);
CheckWriteRefNum("JackRequest::InternalClientUnload", socket);
break;
}
case JackRequest::kNotification: {
jack_log("JackRequest::Notification");
JackClientNotificationRequest req;
CheckRead(req, socket);
if (req.fNotify == kQUIT) {
jack_log("JackRequest::Notification kQUIT");
throw JackQuitException();
} else {
fServer->Notify(req.fRefNum, req.fNotify, req.fValue);
}
break;
}
case JackRequest::kSessionNotify: {
jack_log("JackRequest::SessionNotify");
JackSessionNotifyRequest req;
CheckRead(req, socket);
fServer->GetEngine()->SessionNotify(req.fRefNum, req.fDst, req.fEventType, req.fPath, socket, NULL);
break;
}
case JackRequest::kSessionReply: {
jack_log("JackRequest::SessionReply");
JackSessionReplyRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->SessionReply(req.fRefNum);
CheckWrite("JackRequest::SessionReply", socket);
break;
}
case JackRequest::kGetClientByUUID: {
jack_log("JackRequest::GetClientByUUID");
JackGetClientNameRequest req;
JackClientNameResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->GetClientNameForUUID(req.fUUID, res.fName);
CheckWrite("JackRequest::GetClientByUUID", socket);
break;
}
case JackRequest::kGetUUIDByClient: {
jack_log("JackRequest::GetUUIDByClient");
JackGetUUIDRequest req;
JackUUIDResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->GetUUIDForClientName(req.fName, res.fUUID);
CheckWrite("JackRequest::GetUUIDByClient", socket);
break;
}
case JackRequest::kReserveClientName: {
jack_log("JackRequest::ReserveClientName");
JackReserveNameRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->ReserveClientName(req.fName, req.fUUID);
CheckWrite("JackRequest::ReserveClientName", socket);
break;
}
case JackRequest::kClientHasSessionCallback: {
jack_log("JackRequest::ClientHasSessionCallback");
JackClientHasSessionCallbackRequest req;
JackResult res;
CheckRead(req, socket);
res.fResult = fServer->GetEngine()->ClientHasSessionCallback(req.fName);
CheckWrite("JackRequest::ClientHasSessionCallback", socket);
break;
}
case JackRequest::kPropertyChangeNotify: {
jack_log("JackRequest::PropertyChangeNotify");
JackPropertyChangeNotifyRequest req;
CheckRead(req, socket);
fServer->GetEngine()->PropertyChangeNotify(req.fSubject, req.fKey, req.fChange);
break;
}
default:
jack_error("Unknown request %ld", type);
return -1;
}
return 0;
}
} // end of namespace
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