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| // Copyright 2010 the V8 project authors. All rights reserved. | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // * Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // * Redistributions in binary form must reproduce the above | ||
| // copyright notice, this list of conditions and the following | ||
| // disclaimer in the documentation and/or other materials provided | ||
| // with the distribution. | ||
| // * Neither the name of Google Inc. nor the names of its | ||
| // contributors may be used to endorse or promote products derived | ||
| // from this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
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| #ifndef V8_V8_PROFILER_H_ | ||
| #define V8_V8_PROFILER_H_ | ||
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| #include "v8.h" | ||
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| #ifdef _WIN32 | ||
| // Setup for Windows DLL export/import. See v8.h in this directory for | ||
| // information on how to build/use V8 as a DLL. | ||
| #if defined(BUILDING_V8_SHARED) && defined(USING_V8_SHARED) | ||
| #error both BUILDING_V8_SHARED and USING_V8_SHARED are set - please check the\ | ||
| build configuration to ensure that at most one of these is set | ||
| #endif | ||
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| #ifdef BUILDING_V8_SHARED | ||
| #define V8EXPORT __declspec(dllexport) | ||
| #elif USING_V8_SHARED | ||
| #define V8EXPORT __declspec(dllimport) | ||
| #else | ||
| #define V8EXPORT | ||
| #endif | ||
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| #else // _WIN32 | ||
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| // Setup for Linux shared library export. See v8.h in this directory for | ||
| // information on how to build/use V8 as shared library. | ||
| #if defined(__GNUC__) && (__GNUC__ >= 4) && defined(V8_SHARED) | ||
| #define V8EXPORT __attribute__ ((visibility("default"))) | ||
| #else // defined(__GNUC__) && (__GNUC__ >= 4) | ||
| #define V8EXPORT | ||
| #endif // defined(__GNUC__) && (__GNUC__ >= 4) | ||
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| #endif // _WIN32 | ||
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| /** | ||
| * Profiler support for the V8 JavaScript engine. | ||
| */ | ||
| namespace v8 { | ||
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| /** | ||
| * CpuProfileNode represents a node in a call graph. | ||
| */ | ||
| class V8EXPORT CpuProfileNode { | ||
| public: | ||
| /** Returns function name (empty string for anonymous functions.) */ | ||
| Handle<String> GetFunctionName() const; | ||
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| /** Returns resource name for script from where the function originates. */ | ||
| Handle<String> GetScriptResourceName() const; | ||
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| /** | ||
| * Returns the number, 1-based, of the line where the function originates. | ||
| * kNoLineNumberInfo if no line number information is available. | ||
| */ | ||
| int GetLineNumber() const; | ||
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| /** | ||
| * Returns total (self + children) execution time of the function, | ||
| * in milliseconds, estimated by samples count. | ||
| */ | ||
| double GetTotalTime() const; | ||
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| /** | ||
| * Returns self execution time of the function, in milliseconds, | ||
| * estimated by samples count. | ||
| */ | ||
| double GetSelfTime() const; | ||
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| /** Returns the count of samples where function exists. */ | ||
| double GetTotalSamplesCount() const; | ||
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| /** Returns the count of samples where function was currently executing. */ | ||
| double GetSelfSamplesCount() const; | ||
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| /** Returns function entry UID. */ | ||
| unsigned GetCallUid() const; | ||
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| /** Returns child nodes count of the node. */ | ||
| int GetChildrenCount() const; | ||
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| /** Retrieves a child node by index. */ | ||
| const CpuProfileNode* GetChild(int index) const; | ||
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| static const int kNoLineNumberInfo = 0; | ||
| }; | ||
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| /** | ||
| * CpuProfile contains a CPU profile in a form of two call trees: | ||
| * - top-down (from main() down to functions that do all the work); | ||
| * - bottom-up call graph (in backward direction). | ||
| */ | ||
| class V8EXPORT CpuProfile { | ||
| public: | ||
| /** Returns CPU profile UID (assigned by the profiler.) */ | ||
| unsigned GetUid() const; | ||
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| /** Returns CPU profile title. */ | ||
| Handle<String> GetTitle() const; | ||
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| /** Returns the root node of the bottom up call tree. */ | ||
| const CpuProfileNode* GetBottomUpRoot() const; | ||
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| /** Returns the root node of the top down call tree. */ | ||
| const CpuProfileNode* GetTopDownRoot() const; | ||
| }; | ||
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| /** | ||
| * Interface for controlling CPU profiling. | ||
| */ | ||
| class V8EXPORT CpuProfiler { | ||
| public: | ||
| /** | ||
| * Returns the number of profiles collected (doesn't include | ||
| * profiles that are being collected at the moment of call.) | ||
| */ | ||
| static int GetProfilesCount(); | ||
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| /** Returns a profile by index. */ | ||
| static const CpuProfile* GetProfile(int index); | ||
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| /** Returns a profile by uid. */ | ||
| static const CpuProfile* FindProfile(unsigned uid); | ||
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| /** | ||
| * Starts collecting CPU profile. Title may be an empty string. It | ||
| * is allowed to have several profiles being collected at | ||
| * once. Attempts to start collecting several profiles with the same | ||
| * title are silently ignored. | ||
| */ | ||
| static void StartProfiling(Handle<String> title); | ||
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| /** | ||
| * Stops collecting CPU profile with a given title and returns it. | ||
| * If the title given is empty, finishes the last profile started. | ||
| */ | ||
| static const CpuProfile* StopProfiling(Handle<String> title); | ||
| }; | ||
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| } // namespace v8 | ||
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| #undef V8EXPORT | ||
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| #endif // V8_V8_PROFILER_H_ |
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