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032f1aecc2
Add direct includes for things provided transitively by logging.h (or by other headers including logging.h). This is in preparation for cleaning up unnecessary includes of logging.h in header files (so if something depends on logging.h, it needs include it explicitly), and for when Chromium's logging.h no longer includes check.h, check_op.h, and notreached.h. DEPS is also updated to roll mini_chromium to ae14a14ab4 which includes these new header files. Bug: chromium:1031540 Change-Id: I36f646d0a93854989dc602d0dc7139dd7a7b8621 Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2250251 Commit-Queue: Hans Wennborg <hans@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
134 lines
3.4 KiB
C++
134 lines
3.4 KiB
C++
// Copyright 2019 The Crashpad Authors. All rights reserved.
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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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#include "util/stream/log_output_stream.h"
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#include <string.h>
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#include <algorithm>
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#include "base/check.h"
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#include "base/logging.h"
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#if defined(OS_ANDROID)
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#include <android/log.h>
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#endif
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namespace crashpad {
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namespace {
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// Most minidumps are expected to be compressed and encoded into less than 128k.
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constexpr size_t kOutputCap = 128 * 1024;
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// From Android NDK r20 <android/log.h>, log message text may be truncated to
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// less than an implementation-specific limit (1023 bytes), for sake of safe
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// and being easy to read in logcat, choose 512.
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constexpr size_t kLineBufferSize = 512;
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} // namespace
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LogOutputStream::LogOutputStream()
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: output_count_(0), flush_needed_(false), flushed_(false) {
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buffer_.reserve(kLineBufferSize);
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}
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LogOutputStream::~LogOutputStream() {
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DCHECK(!flush_needed_);
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}
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bool LogOutputStream::Write(const uint8_t* data, size_t size) {
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DCHECK(!flushed_);
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flush_needed_ = true;
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while (size > 0) {
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size_t m = std::min(kLineBufferSize - buffer_.size(), size);
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buffer_.append(reinterpret_cast<const char*>(data), m);
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data += m;
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size -= m;
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if (buffer_.size() == kLineBufferSize && !WriteBuffer()) {
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flush_needed_ = false;
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LOG(ERROR) << "Write: exceeds cap.";
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if (output_stream_for_testing_)
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output_stream_for_testing_->Flush();
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return false;
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}
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}
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return true;
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}
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bool LogOutputStream::WriteBuffer() {
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if (output_count_ == 0) {
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if (!WriteToLog("-----BEGIN CRASHPAD MINIDUMP-----"))
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return false;
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}
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if (buffer_.empty())
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return true;
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output_count_ += buffer_.size();
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if (output_count_ > kOutputCap) {
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WriteToLog("-----ABORT CRASHPAD MINIDUMP-----");
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return false;
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}
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bool result = WriteToLog(buffer_.c_str());
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buffer_.clear();
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return result;
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}
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bool LogOutputStream::WriteToLog(const char* buf) {
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#if defined(OS_ANDROID)
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int ret =
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__android_log_buf_write(LOG_ID_CRASH, ANDROID_LOG_FATAL, "crashpad", buf);
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if (ret < 0) {
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errno = -ret;
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PLOG(ERROR) << "__android_log_buf_write";
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return false;
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}
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#endif
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// For testing.
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if (output_stream_for_testing_) {
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return output_stream_for_testing_->Write(
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reinterpret_cast<const uint8_t*>(buf), strlen(buf));
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}
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return true;
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}
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bool LogOutputStream::Flush() {
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flush_needed_ = false;
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flushed_ = true;
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bool result = true;
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if (WriteBuffer()) {
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result = WriteToLog("-----END CRASHPAD MINIDUMP-----");
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} else {
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LOG(ERROR) << "Flush: exceeds cap.";
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result = false;
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}
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// Since output_stream_for_testing_'s Write() method has been called, its
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// Flush() shall always be invoked.
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if (output_stream_for_testing_)
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output_stream_for_testing_->Flush();
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return result;
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}
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void LogOutputStream::SetOutputStreamForTesting(
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std::unique_ptr<OutputStreamInterface> stream) {
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output_stream_for_testing_ = std::move(stream);
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}
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} // namespace crashpad
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