/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_RS_THREAD_IO_H
#define ANDROID_RS_THREAD_IO_H
#include "rsUtils.h"
#include "rsFifoSocket.h"
// ---------------------------------------------------------------------------
namespace android {
namespace renderscript {
class Context;
class ThreadIO {
public:
ThreadIO();
~ThreadIO();
void init();
void shutdown();
size_t getMaxInlineSize() {
return mMaxInlineSize;
}
bool isPureFifo() {
return mPureFifo;
}
// Plays back commands from the client.
// Returns true if any commands were processed.
bool playCoreCommands(Context *con, int waitFd);
void setTimeoutCallback(void (*)(void *), void *, uint64_t timeout);
void * coreHeader(uint32_t, size_t dataLen);
void coreCommit();
void coreSetReturn(const void *data, size_t dataLen);
void coreGetReturn(void *data, size_t dataLen);
void coreWrite(const void *data, size_t len);
void coreRead(void *data, size_t len);
void asyncSetReturn(const void *data, size_t dataLen);
void asyncGetReturn(void *data, size_t dataLen);
void asyncWrite(const void *data, size_t len);
void asyncRead(void *data, size_t len);
RsMessageToClientType getClientHeader(size_t *receiveLen, uint32_t *usrID);
RsMessageToClientType getClientPayload(void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen);
bool sendToClient(RsMessageToClientType cmdID, uint32_t usrID, const void *data, size_t dataLen, bool waitForSpace);
void clientShutdown();
protected:
typedef struct CoreCmdHeaderRec {
uint32_t cmdID;
uint32_t bytes;
} CoreCmdHeader;
typedef struct ClientCmdHeaderRec {
uint32_t cmdID;
uint32_t bytes;
uint32_t userID;
} ClientCmdHeader;
ClientCmdHeader mLastClientHeader;
bool mRunning;
bool mPureFifo;
size_t mMaxInlineSize;
FifoSocket mToClient;
FifoSocket mToCore;
intptr_t mToCoreRet;
size_t mSendLen;
uint8_t mSendBuffer[2 * 1024] __attribute__((aligned(sizeof(double))));
};
}
}
#endif
