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107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef TOOLS_GN_TRACE_H_
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#define TOOLS_GN_TRACE_H_
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#include <string>
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#include "base/macros.h"
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#include "base/threading/platform_thread.h"
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#include "base/time/time.h"
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class Label;
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namespace base {
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class CommandLine;
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class FilePath;
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}
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class TraceItem {
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public:
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enum Type {
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TRACE_SETUP,
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TRACE_FILE_LOAD,
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TRACE_FILE_PARSE,
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TRACE_FILE_EXECUTE,
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TRACE_FILE_WRITE,
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TRACE_IMPORT_LOAD,
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TRACE_IMPORT_BLOCK,
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TRACE_SCRIPT_EXECUTE,
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TRACE_DEFINE_TARGET,
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TRACE_ON_RESOLVED,
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TRACE_CHECK_HEADER, // One file.
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TRACE_CHECK_HEADERS, // All files.
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};
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TraceItem(Type type,
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const std::string& name,
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base::PlatformThreadId thread_id);
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~TraceItem();
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Type type() const { return type_; }
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const std::string& name() const { return name_; }
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base::PlatformThreadId thread_id() const { return thread_id_; }
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base::TimeTicks begin() const { return begin_; }
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void set_begin(base::TimeTicks b) { begin_ = b; }
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base::TimeTicks end() const { return end_; }
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void set_end(base::TimeTicks e) { end_ = e; }
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base::TimeDelta delta() const { return end_ - begin_; }
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// Optional toolchain label.
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const std::string& toolchain() const { return toolchain_; }
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void set_toolchain(const std::string& t) { toolchain_ = t; }
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// Optional command line.
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const std::string& cmdline() const { return cmdline_; }
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void set_cmdline(const std::string& c) { cmdline_ = c; }
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private:
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Type type_;
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std::string name_;
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base::PlatformThreadId thread_id_;
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base::TimeTicks begin_;
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base::TimeTicks end_;
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std::string toolchain_;
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std::string cmdline_;
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};
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class ScopedTrace {
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public:
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ScopedTrace(TraceItem::Type t, const std::string& name);
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ScopedTrace(TraceItem::Type t, const Label& label);
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~ScopedTrace();
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void SetToolchain(const Label& label);
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void SetCommandLine(const base::CommandLine& cmdline);
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void Done();
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private:
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TraceItem* item_;
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bool done_;
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};
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// Call to turn tracing on. It's off by default.
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void EnableTracing();
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// Returns whether tracing is enabled.
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bool TracingEnabled();
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// Adds a trace event to the log. Takes ownership of the pointer.
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void AddTrace(TraceItem* item);
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// Returns a summary of the current traces, or the empty string if tracing is
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// not enabled.
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std::string SummarizeTraces();
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// Saves the current traces to the given filename in JSON format.
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void SaveTraces(const base::FilePath& file_name);
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#endif // TOOLS_GN_TRACE_H_
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