1 /* 2 * Copyright (C) 2008 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 // All static variables go here, to control initialization and 18 // destruction order in the library. 19 20 #include "Static.h" 21 22 #include "BufferedTextOutput.h" 23 #include <binder/IPCThreadState.h> 24 #include <utils/Log.h> 25 26 namespace android { 27 28 // ------------ Text output streams 29 30 Vector<int32_t> gTextBuffers; 31 32 class LogTextOutput : public BufferedTextOutput 33 { 34 public: LogTextOutput()35 LogTextOutput() : BufferedTextOutput(MULTITHREADED) { } ~LogTextOutput()36 virtual ~LogTextOutput() { } 37 38 protected: writeLines(const struct iovec & vec,size_t N)39 virtual status_t writeLines(const struct iovec& vec, size_t N) 40 { 41 //android_writevLog(&vec, N); <-- this is now a no-op 42 if (N != 1) ALOGI("WARNING: writeLines N=%zu\n", N); 43 ALOGI("%.*s", (int)vec.iov_len, (const char*) vec.iov_base); 44 return NO_ERROR; 45 } 46 }; 47 48 class FdTextOutput : public BufferedTextOutput 49 { 50 public: FdTextOutput(int fd)51 explicit FdTextOutput(int fd) : BufferedTextOutput(MULTITHREADED), mFD(fd) { } ~FdTextOutput()52 virtual ~FdTextOutput() { } 53 54 protected: writeLines(const struct iovec & vec,size_t N)55 virtual status_t writeLines(const struct iovec& vec, size_t N) 56 { 57 ssize_t ret = writev(mFD, &vec, N); 58 if (ret == -1) return -errno; 59 if (static_cast<size_t>(ret) != N) return UNKNOWN_ERROR; 60 return NO_ERROR; 61 } 62 63 private: 64 int mFD; 65 }; 66 67 TextOutput& alog(*new LogTextOutput()); 68 TextOutput& aout(*new FdTextOutput(STDOUT_FILENO)); 69 TextOutput& aerr(*new FdTextOutput(STDERR_FILENO)); 70 71 } // namespace android 72