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72 lines
2.0 KiB
72 lines
2.0 KiB
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// All static variables go here, to control initialization and
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// destruction order in the library.
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#include "Static.h"
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#include "BufferedTextOutput.h"
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#include <binder/IPCThreadState.h>
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#include <utils/Log.h>
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namespace android {
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// ------------ Text output streams
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Vector<int32_t> gTextBuffers;
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class LogTextOutput : public BufferedTextOutput
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{
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public:
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LogTextOutput() : BufferedTextOutput(MULTITHREADED) { }
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virtual ~LogTextOutput() { }
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protected:
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virtual status_t writeLines(const struct iovec& vec, size_t N)
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{
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//android_writevLog(&vec, N); <-- this is now a no-op
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if (N != 1) ALOGI("WARNING: writeLines N=%zu\n", N);
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ALOGI("%.*s", (int)vec.iov_len, (const char*) vec.iov_base);
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return NO_ERROR;
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}
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};
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class FdTextOutput : public BufferedTextOutput
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{
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public:
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explicit FdTextOutput(int fd) : BufferedTextOutput(MULTITHREADED), mFD(fd) { }
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virtual ~FdTextOutput() { }
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protected:
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virtual status_t writeLines(const struct iovec& vec, size_t N)
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{
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ssize_t ret = writev(mFD, &vec, N);
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if (ret == -1) return -errno;
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if (static_cast<size_t>(ret) != N) return UNKNOWN_ERROR;
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return NO_ERROR;
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}
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private:
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int mFD;
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};
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TextOutput& alog(*new LogTextOutput());
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TextOutput& aout(*new FdTextOutput(STDOUT_FILENO));
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TextOutput& aerr(*new FdTextOutput(STDERR_FILENO));
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} // namespace android
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