// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module mojo.log;

// Log levels: Levels less than |kLogLevelVerbose| are valid and indicate
// greater levels of verbosity. Levels greater than |kLogLevelFatal| should be
// taken to be equivalent to |kLogLevelFatal|.
const int32 kLogLevelVerbose = -1;
const int32 kLogLevelInfo = 0;
const int32 kLogLevelWarning = 1;
const int32 kLogLevelError = 2;
const int32 kLogLevelFatal = 3;

// Describes a log message and its origin in source code. It is used by the
// |mojo::log::Log| service (see log.mojom).
struct Entry {
  // Client-side timestamp, in microseconds.
  int64 timestamp;
  // The log level for this message. See the log level constants described
  // above.
  int32 log_level;

  string? message;

  // The client source file this log entry originated from.  It is optional.   
  string? source_file;
  // |source_line| refers to the line in |source_file| the log entry came from. 
  // |source_line| is ignored if:
  //   - |source_file| is null.
  //   - its value is 0 (which is an invalid value).
  uint32 source_line = 0;
};