1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_RS_THREAD_IO_H 18 #define ANDROID_RS_THREAD_IO_H 19 20 #include "rsUtils.h" 21 #include "rsFifoSocket.h" 22 23 // --------------------------------------------------------------------------- 24 namespace android { 25 namespace renderscript { 26 27 class Context; 28 29 class ThreadIO { 30 public: 31 ThreadIO(); 32 ~ThreadIO(); 33 34 bool init(); 35 void shutdown(); 36 getMaxInlineSize()37 size_t getMaxInlineSize() { 38 return mMaxInlineSize; 39 } 40 41 // Plays back commands from the client. 42 // Returns true if any commands were processed. 43 bool playCoreCommands(Context *con, int waitFd); 44 45 void setTimeoutCallback(void (*)(void *), void *, uint64_t timeout); 46 47 void * coreHeader(uint32_t, size_t dataLen); 48 void coreCommit(); 49 50 void coreSetReturn(const void *data, size_t dataLen); 51 void coreGetReturn(void *data, size_t dataLen); 52 void coreWrite(const void *data, size_t len); 53 void coreRead(void *data, size_t len); 54 55 void asyncSetReturn(const void *data, size_t dataLen); 56 void asyncGetReturn(void *data, size_t dataLen); 57 void asyncWrite(const void *data, size_t len); 58 void asyncRead(void *data, size_t len); 59 60 61 RsMessageToClientType getClientHeader(size_t *receiveLen, uint32_t *usrID); 62 RsMessageToClientType getClientPayload(void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen); 63 bool sendToClient(RsMessageToClientType cmdID, uint32_t usrID, const void *data, size_t dataLen, bool waitForSpace); 64 void clientShutdown(); 65 66 67 protected: 68 typedef struct CoreCmdHeaderRec { 69 uint32_t cmdID; 70 uint32_t bytes; 71 } CoreCmdHeader; 72 typedef struct ClientCmdHeaderRec { 73 uint32_t cmdID; 74 uint32_t bytes; 75 uint32_t userID; 76 } ClientCmdHeader; 77 ClientCmdHeader mLastClientHeader; 78 79 bool mRunning; 80 size_t mMaxInlineSize; 81 82 FifoSocket mToClient; 83 FifoSocket mToCore; 84 85 intptr_t mToCoreRet; 86 87 size_t mSendLen; 88 uint8_t mSendBuffer[2 * 1024] __attribute__((aligned(sizeof(double)))); 89 90 }; 91 92 93 } // namespace renderscript 94 } // namespace android 95 #endif 96 97