/* * Copyright (C) 2006 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_BUFFEREDTEXTOUTPUT_H #define ANDROID_BUFFEREDTEXTOUTPUT_H #include <utils/TextOutput.h> #include <utils/threads.h> #include <cutils/uio.h> // --------------------------------------------------------------------------- namespace android { class BufferedTextOutput : public TextOutput { public: //** Flags for constructor */ enum { MULTITHREADED = 0x0001 }; BufferedTextOutput(uint32_t flags = 0); virtual ~BufferedTextOutput(); virtual status_t print(const char* txt, size_t len); virtual void moveIndent(int delta); virtual void pushBundle(); virtual void popBundle(); protected: virtual status_t writeLines(const struct iovec& vec, size_t N) = 0; private: struct BufferState; struct ThreadState; static ThreadState*getThreadState(); static void threadDestructor(void *st); BufferState*getBuffer() const; uint32_t mFlags; const int32_t mSeq; const int32_t mIndex; Mutex mLock; BufferState* mGlobalState; }; // --------------------------------------------------------------------------- }; // namespace android #endif // ANDROID_BUFFEREDTEXTOUTPUT_H