72 lines
2.6 KiB
C++
72 lines
2.6 KiB
C++
// Copyright (c) 2024, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: Sergiu Deitsch
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//
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#include <glog/logging.h>
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#include <algorithm>
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#include <cstddef>
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#include <iostream>
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#include <iterator>
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namespace {
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struct MyLogSink : google::LogSink { // (1)!
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void send(google::LogSeverity severity, const char* /*full_filename*/,
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const char* base_filename, int line,
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const google::LogMessageTime& /*time*/, const char* message,
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std::size_t message_len) override {
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std::cout << google::GetLogSeverityName(severity) << ' ' << base_filename
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<< ':' << line << ' ';
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std::copy_n(message, message_len,
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std::ostreambuf_iterator<char>{std::cout});
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std::cout << '\n';
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}
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};
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} // namespace
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int main(int /*argc*/, char** argv) {
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google::InitGoogleLogging(argv[0]);
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MyLogSink sink;
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google::AddLogSink(&sink); // (2)!
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LOG(INFO) << "logging to MySink";
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google::RemoveLogSink(&sink); // (3)!
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// We can directly log to a sink without registering it
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LOG_TO_SINK(&sink, INFO) << "direct logging"; // (4)!
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LOG_TO_SINK_BUT_NOT_TO_LOGFILE(&sink, INFO)
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<< "direct logging but not to file";
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}
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