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102 lines
3.4 KiB
Plaintext
102 lines
3.4 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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%{C++
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template<class T> class nsTArray;
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class nsCString;
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%}
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[ref] native StringArrayRef(const nsTArray<nsCString>);
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/**
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* Start-up parameters for subprocesses are passed through nsIObserverService,
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* which, unfortunately, means we need to implement nsISupports in order to
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* go through it.
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*/
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[uuid(0a175ba7-8fcf-4ce9-9c4b-ccc6272f4425)]
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interface nsIProfilerStartParams : nsISupports
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{
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attribute uint32_t entries;
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attribute double interval;
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[noscript, notxpcom, nostdcall] StringArrayRef getFeatures();
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[noscript, notxpcom, nostdcall] StringArrayRef getThreadFilterNames();
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};
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[scriptable, uuid(ead3f75c-0e0e-4fbb-901c-1e5392ef5b2a)]
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interface nsIProfiler : nsISupports
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{
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boolean CanProfile();
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void StartProfiler(in uint32_t aEntries, in double aInterval,
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[array, size_is(aFeatureCount)] in string aFeatures,
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in uint32_t aFeatureCount,
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[array, size_is(aFilterCount), optional] in string aThreadNameFilters,
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[optional] in uint32_t aFilterCount);
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void StopProfiler();
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boolean IsPaused();
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void PauseSampling();
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void ResumeSampling();
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void AddMarker(in string aMarker);
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/*
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* Returns the JSON string of the profile. If aSinceTime is passed, only
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* report samples taken at >= aSinceTime.
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*/
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string GetProfile([optional] in double aSinceTime);
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/*
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* Returns a JS object of the profile. If aSinceTime is passed, only report
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* samples taken at >= aSinceTime.
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*/
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[implicit_jscontext]
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jsval getProfileData([optional] in double aSinceTime);
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[implicit_jscontext]
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nsISupports getProfileDataAsync([optional] in double aSinceTime);
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boolean IsActive();
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void GetFeatures(out uint32_t aCount, [retval, array, size_is(aCount)] out string aFeatures);
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/**
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* The starting parameters that were sent to the profiler for sampling.
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* If the profiler is not currently sampling, this will return null.
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*/
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readonly attribute nsIProfilerStartParams startParams;
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/**
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* The profileGatherer will be null if the profiler is not currently
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* active.
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*/
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readonly attribute nsISupports profileGatherer;
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void GetBufferInfo(out uint32_t aCurrentPosition, out uint32_t aTotalSize,
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out uint32_t aGeneration);
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/**
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* Returns the elapsed time, in milliseconds, since the profiler's epoch.
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* The epoch is guaranteed to be constant for the duration of the
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* process, but is otherwise arbitrary.
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*/
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double getElapsedTime();
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/**
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* Returns a JSON string of an array of shared library objects.
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* Every object has three properties: start, end, and name.
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* start and end are integers describing the address range that the library
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* occupies in memory. name is the path of the library as a string.
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*
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* On Windows profiling builds, the shared library objects will have
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* additional pdbSignature and pdbAge properties for uniquely identifying
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* shared library versions for stack symbolication.
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*/
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AString getSharedLibraryInformation();
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/**
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* Dump the collected profile to a file.
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*/
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void dumpProfileToFile(in string aFilename);
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};
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