1 // Copyright 2019 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/trace_event/log_message.h"
6
7 #include <stdint.h>
8
9 #include <string>
10
11 #include "base/json/string_escape.h"
12 #include "base/strings/stringprintf.h"
13
14 namespace base {
15 namespace trace_event {
16
LogMessage(const char * file,base::StringPiece message,int line)17 LogMessage::LogMessage(const char* file, base::StringPiece message, int line)
18 : file_(file), message_(message), line_number_(line) {}
19
20 LogMessage::~LogMessage() = default;
21
AppendAsTraceFormat(std::string * out) const22 void LogMessage::AppendAsTraceFormat(std::string* out) const {
23 out->append("{");
24 out->append(base::StringPrintf("\"line\":\"%d\",", line_number_));
25 out->append("\"message\":");
26 base::EscapeJSONString(message_, true, out);
27 out->append(",");
28 out->append(base::StringPrintf("\"file\":\"%s\"", file_));
29 out->append("}");
30 }
31
EstimateTraceMemoryOverhead(TraceEventMemoryOverhead * overhead)32 void LogMessage::EstimateTraceMemoryOverhead(
33 TraceEventMemoryOverhead* overhead) {
34 overhead->Add(TraceEventMemoryOverhead::kOther, sizeof(this));
35 overhead->AddString(message_);
36 }
37
AppendToProto(ProtoAppender * appender)38 bool LogMessage::AppendToProto(ProtoAppender* appender) {
39 // LogMessage is handled in a special way in
40 // track_event_thread_local_event_sink.cc in the function |AddTraceEvent|, so
41 // this call should never happen.
42 NOTREACHED();
43 return false;
44 }
45
46 } // namespace trace_event
47 } // namespace base