blob: db0f1c7c3fcfb8c641f41a0bd1e1b9de35f6ccc0 [file] [log] [blame]
/*
* Copyright (C) 2008 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.
*/
// All static variables go here, to control initialization and
// destruction order in the library.
#include "Static.h"
#include "BufferedTextOutput.h"
#include <binder/IPCThreadState.h>
#include <utils/Log.h>
namespace android {
// ------------ Text output streams
Vector<int32_t> gTextBuffers;
class LogTextOutput : public BufferedTextOutput
{
public:
LogTextOutput() : BufferedTextOutput(MULTITHREADED) { }
virtual ~LogTextOutput() { };
protected:
virtual status_t writeLines(const struct iovec& vec, size_t N)
{
//android_writevLog(&vec, N); <-- this is now a no-op
if (N != 1) ALOGI("WARNING: writeLines N=%zu\n", N);
ALOGI("%.*s", (int)vec.iov_len, (const char*) vec.iov_base);
return NO_ERROR;
}
};
class FdTextOutput : public BufferedTextOutput
{
public:
explicit FdTextOutput(int fd) : BufferedTextOutput(MULTITHREADED), mFD(fd) { }
virtual ~FdTextOutput() { };
protected:
virtual status_t writeLines(const struct iovec& vec, size_t N)
{
ssize_t ret = writev(mFD, &vec, N);
if (ret == -1) return -errno;
if (static_cast<size_t>(ret) != N) return UNKNOWN_ERROR;
return NO_ERROR;
}
private:
int mFD;
};
TextOutput& alog(*new LogTextOutput());
TextOutput& aout(*new FdTextOutput(STDOUT_FILENO));
TextOutput& aerr(*new FdTextOutput(STDERR_FILENO));
} // namespace android