absl/log/flags.h

0001 // Copyright 2022 The Abseil Authors.
0002 //
0003 // Licensed under the Apache License, Version 2.0 (the "License");
0004 // you may not use this file except in compliance with the License.
0005 // You may obtain a copy of the License at
0006 //
0007 //      https://www.apache.org/licenses/LICENSE-2.0
0008 //
0009 // Unless required by applicable law or agreed to in writing, software
0010 // distributed under the License is distributed on an "AS IS" BASIS,
0011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0012 // See the License for the specific language governing permissions and
0013 // limitations under the License.
0014 //
0015 // -----------------------------------------------------------------------------
0016 // File: log/flags.h
0017 // -----------------------------------------------------------------------------
0018 //
0019
0020 #ifndef ABSL_LOG_FLAGS_H_
0021 #define ABSL_LOG_FLAGS_H_
0022
0023 // The Abseil Logging library supports the following command line flags to
0024 // configure logging behavior at runtime:
0025 //
0026 // --stderrthreshold=<value>
0027 // Log messages at or above this threshold level are copied to stderr.
0028 //
0029 // --minloglevel=<value>
0030 // Messages logged at a lower level than this are discarded and don't actually
0031 // get logged anywhere.
0032 //
0033 // --log_backtrace_at=<file:linenum>
0034 // Emit a backtrace (stack trace) when logging at file:linenum.
0035 //
0036 // To use these commandline flags, the //absl/log:flags library must be
0037 // explicitly linked, and absl::ParseCommandLine() must be called before the
0038 // call to absl::InitializeLog().
0039 //
0040 // To configure the Log library programmatically, use the interfaces defined in
0041 // absl/log/globals.h.
0042
0043 #endif  // ABSL_LOG_FLAGS_H_