зеркало из https://github.com/mozilla/gecko-dev.git
549 строки
22 KiB
Plaintext
549 строки
22 KiB
Plaintext
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */
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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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#include "nsIFile.idl"
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[scriptable,function, uuid(3d3b9075-5549-4244-9c08-b64fefa1dd60)]
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interface nsIFetchTelemetryDataCallback : nsISupports
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{
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void complete();
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};
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[scriptable, uuid(273d2dd0-6c63-475a-b864-cb65160a1909)]
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interface nsITelemetry : nsISupports
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{
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/**
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* Histogram types:
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* HISTOGRAM_EXPONENTIAL - buckets increase exponentially
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* HISTOGRAM_LINEAR - buckets increase linearly
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* HISTOGRAM_BOOLEAN - For storing 0/1 values
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* HISTOGRAM_FLAG - For storing a single value; its count is always == 1.
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* HISTOGRAM_COUNT - For storing counter values without bucketing.
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* HISTOGRAM_CATEGORICAL - For storing enumerated values by label.
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*/
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const unsigned long HISTOGRAM_EXPONENTIAL = 0;
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const unsigned long HISTOGRAM_LINEAR = 1;
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const unsigned long HISTOGRAM_BOOLEAN = 2;
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const unsigned long HISTOGRAM_FLAG = 3;
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const unsigned long HISTOGRAM_COUNT = 4;
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const unsigned long HISTOGRAM_CATEGORICAL = 5;
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/**
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* Scalar types:
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* SCALAR_TYPE_COUNT - for storing a numeric value
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* SCALAR_TYPE_STRING - for storing a string value
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* SCALAR_TYPE_BOOLEAN - for storing a boolean value
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*/
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const unsigned long SCALAR_TYPE_COUNT = 0;
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const unsigned long SCALAR_TYPE_STRING = 1;
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const unsigned long SCALAR_TYPE_BOOLEAN = 2;
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/**
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* Dataset types:
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* DATASET_RELEASE_CHANNEL_OPTOUT - the basic dataset that is on-by-default on all channels
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* DATASET_RELEASE_CHANNEL_OPTIN - the extended dataset that is opt-in on release,
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* opt-out on pre-release channels.
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*/
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const unsigned long DATASET_RELEASE_CHANNEL_OPTOUT = 0;
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const unsigned long DATASET_RELEASE_CHANNEL_OPTIN = 1;
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/**
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* Serializes the histograms from the given dataset to a JSON-style object.
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* The returned structure looks like:
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* { process1: {name1: {histogramData1}, name2:{histogramData2}...}}
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*
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* Where histogramDataN has the following properties:
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* min - minimum bucket size
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* max - maximum bucket size
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* histogram_type - HISTOGRAM_EXPONENTIAL, HISTOGRAM_LINEAR, HISTOGRAM_BOOLEAN,
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* HISTOGRAM_FLAG, HISTOGRAM_COUNT, or HISTOGRAM_CATEGORICAL
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* counts - array representing contents of the buckets in the histogram
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* ranges - array with calculated bucket sizes
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* sum - sum of the bucket contents
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*
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* @param aDataset DATASET_RELEASE_CHANNEL_OPTOUT or DATASET_RELEASE_CHANNEL_OPTIN.
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* @param aSubsession Whether to return the internally-duplicated subsession histograms
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* @param aClear Whether to clear out the subsession histograms after snapshotting (only works if aSubsession is true)
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*/
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[implicit_jscontext]
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jsval snapshotHistograms(in uint32_t aDataset, in boolean aSubsession, in boolean aClear);
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/**
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* The amount of time, in milliseconds, that the last session took
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* to shutdown. Reads as 0 to indicate failure.
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*/
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readonly attribute uint32_t lastShutdownDuration;
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/**
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* The number of failed profile lock attempts that have occurred prior to
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* successfully locking the profile
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*/
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readonly attribute uint32_t failedProfileLockCount;
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/*
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* An object containing information about slow SQL statements.
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*
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* {
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* mainThread: { "sqlString1": [<hit count>, <total time>], "sqlString2": [...], ... },
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* otherThreads: { "sqlString3": [<hit count>, <total time>], "sqlString4": [...], ... }
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* }
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*
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* where:
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* mainThread: Slow statements that executed on the main thread
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* otherThreads: Slow statements that executed on a non-main thread
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* sqlString - String of the offending statement (see note)
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* hit count - The number of times this statement required longer than the threshold time to execute
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* total time - The sum of all execution times above the threshold time for this statement
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*
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* Note that dynamic SQL strings and SQL strings executed against addon DBs could contain private information.
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* This property represents such SQL as aggregate database-level stats and the sqlString contains the database
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* filename instead.
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*/
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[implicit_jscontext]
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readonly attribute jsval slowSQL;
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/*
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* See slowSQL above.
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*
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* An object containing full strings of every slow SQL statement if toolkit.telemetry.debugSlowSql = true
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* The returned SQL strings may contain private information and should not be reported to Telemetry.
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*/
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[implicit_jscontext]
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readonly attribute jsval debugSlowSQL;
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/*
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* An object containing information about Webrtc related stats. For now it
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* only contains local and remote ICE candidates avaiable when a Webrtc
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* PeerConnection gets terminated.
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*/
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[implicit_jscontext]
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readonly attribute jsval webrtcStats;
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/**
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* A number representing the highest number of concurrent threads
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* reached during this session.
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*/
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readonly attribute uint32_t maximalNumberOfConcurrentThreads;
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/*
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* An array of chrome hang reports. Each element is a hang report represented
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* as an object containing the hang duration, call stack PCs and information
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* about modules in memory.
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*/
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[implicit_jscontext]
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readonly attribute jsval chromeHangs;
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/*
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* Record the current thread's call stack on demand. Note that, the stack is
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* only captured at the first call. All subsequent calls result in incrementing
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* the capture counter without doing actual stack unwinding.
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*
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* @param aKey - A user defined key associated with the captured stack.
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*
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* NOTE: Unwinding call stacks is an expensive operation performance-wise.
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*/
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void captureStack(in ACString name);
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/*
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* Returns a snapshot of captured stacks. The data has the following structure:
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*
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* {
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* "memoryMap": [
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* ["wgdi32.pdb", "08A541B5942242BDB4AEABD8C87E4CFF2"],
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* ["igd10iumd32.pdb", "D36DEBF2E78149B5BE1856B772F1C3991"],
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* ... other entries in the format ["module name", "breakpad identifier"] ...
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* ],
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* "stacks": [
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* [
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* [
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* 0, // the module index or -1 for invalid module indices
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* 190649 // the offset of this program counter in its module or an absolute pc
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* ],
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* [1, 2540075],
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* ... other frames ...
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* ],
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* ... other stacks ...
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* ],
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* "captures": [["string-key", stack-index, count], ... ]
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* }
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*
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* @param clear Whether to clear out the subsession histograms after taking a snapshot.
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*
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* @return A snapshot of captured stacks.
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*/
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[implicit_jscontext]
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jsval snapshotCapturedStacks([optional] in boolean clear);
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/*
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* Asynchronously get an array of the modules loaded in the process.
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*
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* The data has the following structure:
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*
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* [
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* {
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* "name": <string>, // Name of the module file (e.g. xul.dll)
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* "version": <string>, // Version of the module
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* "debugName": <string>, // ID of the debug information file
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* "debugID": <string>, // Name of the debug information file
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* },
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* ...
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* ]
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*
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* @return A promise that resolves to an array of modules or rejects with
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NS_ERROR_FAILURE on failure.
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* @throws NS_ERROR_NOT_IMPLEMENTED if the Gecko profiler is not enabled.
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*/
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[implicit_jscontext]
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nsISupports getLoadedModules();
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/*
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* An object with two fields: memoryMap and stacks.
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* * memoryMap is a list of loaded libraries.
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* * stacks is a list of stacks. Each stack is a list of pairs of the form
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* [moduleIndex, offset]. The moduleIndex is an index into the memoryMap and
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* offset is an offset in the library at memoryMap[moduleIndex].
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* This format is used to make it easier to send the stacks to the
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* symbolication server.
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*/
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[implicit_jscontext]
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readonly attribute jsval lateWrites;
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/**
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* Create and return a histogram registered in TelemetryHistograms.h.
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*
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* @param id - unique identifier from TelemetryHistograms.h
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* The returned object has the following functions:
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* add(int) - Adds an int value to the appropriate bucket
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* snapshot() - Returns a snapshot of the histogram with the same data fields as in histogramSnapshots()
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* clear() - Zeros out the histogram's buckets and sum. This is intended to be only used in tests.
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* dataset() - identifies what dataset this is in: DATASET_RELEASE_CHANNEL_OPTOUT or ...OPTIN.
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* This is intended to be only used in tests.
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*/
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[implicit_jscontext]
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jsval getHistogramById(in ACString id);
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/**
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* Serializes the keyed histograms from the given dataset to a JSON-style object.
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* The returned structure looks like:
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* { process1: {name1: {histogramData1}, name2:{histogramData2}...}}
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*
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* @param aDataset DATASET_RELEASE_CHANNEL_OPTOUT or DATASET_RELEASE_CHANNEL_OPTIN.
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* @param aSubsession Whether to return the internally-duplicated subsession keyed histograms
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* @param aClear Whether to clear out the subsession keyed histograms after snapshotting (only works if aSubsession is true)
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*/
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[implicit_jscontext]
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jsval snapshotKeyedHistograms(in uint32_t aDataset, in boolean aSubsession, in boolean aClear);
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/**
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* Create and return a histogram registered in TelemetryHistograms.h.
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*
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* @param id - unique identifier from TelemetryHistograms.h
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* The returned object has the following functions:
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* add(string key, [optional] int) - Add an int value to the histogram for that key. If no histogram for that key exists yet, it is created.
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* snapshot([optional] string key) - If key is provided, returns a snapshot for the histogram with that key or null. If key is not provided, returns the snapshots of all the registered keys in the form {key1: snapshot1, key2: snapshot2, ...}.
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* keys() - Returns an array with the string keys of the currently registered histograms
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* clear() - Clears the registered histograms from this.
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* This is intended to be only used in tests.
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* dataset() - identifies what dataset this is in: DATASET_RELEASE_CHANNEL_OPTOUT or ...OPTIN.
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* This is intended to be only used in tests.
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*/
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[implicit_jscontext]
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jsval getKeyedHistogramById(in ACString id);
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/**
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* A flag indicating if Telemetry can record base data (FHR data). This is true if the
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* FHR data reporting service or self-support are enabled.
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*
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* In the unlikely event that adding a new base probe is needed, please check the data
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* collection wiki at https://wiki.mozilla.org/Firefox/Data_Collection and talk to the
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* Telemetry team.
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*/
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attribute boolean canRecordBase;
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/**
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* A flag indicating if Telemetry is allowed to record extended data. Returns false if
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* the user hasn't opted into "extended Telemetry" on the Release channel, when the
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* user has explicitly opted out of Telemetry on Nightly/Aurora/Beta or if manually
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* set to false during tests.
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*
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* Set this to false in tests to disable gathering of extended telemetry statistics.
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*/
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attribute boolean canRecordExtended;
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/**
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* A flag indicating whether Telemetry is recording release data, which is a
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* smallish subset of our usage data that we're prepared to handle from our
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* largish release population.
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*
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* This is true most of the time.
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*
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* This does not indicate whether Telemetry will send any data. That is
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* governed by user preference and other mechanisms.
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*
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* You may use this to determine if it's okay to record your data.
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*/
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readonly attribute boolean canRecordReleaseData;
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/**
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* A flag indicating whether Telemetry is recording prerelease data, which is
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* a largish amount of usage data that we're prepared to handle from our
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* smallish pre-release population.
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*
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* This is true on pre-release branches of Firefox.
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*
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* This does not indicate whether Telemetry will send any data. That is
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* governed by user preference and other mechanisms.
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*
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* You may use this to determine if it's okay to record your data.
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*/
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readonly attribute boolean canRecordPrereleaseData;
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/**
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* A flag indicating whether Telemetry can submit official results (for base or extended
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* data). This is true on official, non-debug builds with built in support for Mozilla
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* Telemetry reporting.
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*/
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readonly attribute boolean isOfficialTelemetry;
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/**
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* Enable/disable recording for this histogram at runtime.
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* Recording is enabled by default, unless listed at kRecordingInitiallyDisabledIDs[].
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* Name must be a valid Histogram identifier, otherwise an assertion will be triggered.
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*
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* @param id - unique identifier from histograms.json
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* @param enabled - whether or not to enable recording from now on.
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*/
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void setHistogramRecordingEnabled(in ACString id, in boolean enabled);
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/**
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* Read data from the previous run. After the callback is called, the last
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* shutdown time is available in lastShutdownDuration and any late
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* writes in lateWrites.
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*/
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void asyncFetchTelemetryData(in nsIFetchTelemetryDataCallback aCallback);
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/**
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* Get statistics of file IO reports, null, if not recorded.
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*
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* The statistics are returned as an object whose propoerties are the names
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* of the files that have been accessed and whose corresponding values are
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* arrays of size three, representing startup, normal, and shutdown stages.
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* Each stage's entry is either null or an array with the layout
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* [total_time, #creates, #reads, #writes, #fsyncs, #stats]
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*/
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[implicit_jscontext]
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readonly attribute jsval fileIOReports;
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/**
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* Return the number of milliseconds since process start using monotonic
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* timestamps (unaffected by system clock changes).
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* @throws NS_ERROR_NOT_AVAILABLE if TimeStamp doesn't have the data.
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*/
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double msSinceProcessStart();
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/**
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* Time since the system wide epoch. This is not a monotonic timer but
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* can be used across process boundaries.
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*/
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double msSystemNow();
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/**
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* Adds the value to the given scalar.
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*
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* @param aName The scalar name.
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* @param aValue The numeric value to add to the scalar. Only unsigned integers supported.
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*/
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[implicit_jscontext]
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void scalarAdd(in ACString aName, in jsval aValue);
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/**
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* Sets the scalar to the given value.
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*
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* @param aName The scalar name.
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* @param aValue The value to set the scalar to. If the type of aValue doesn't match the
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* type of the scalar, the function will fail. For scalar string types, the this
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* is truncated to 50 characters.
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*/
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[implicit_jscontext]
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void scalarSet(in ACString aName, in jsval aValue);
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/**
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* Sets the scalar to the maximum of the current and the passed value.
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*
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* @param aName The scalar name.
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* @param aValue The numeric value to set the scalar to. Only unsigned integers supported.
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*/
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[implicit_jscontext]
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void scalarSetMaximum(in ACString aName, in jsval aValue);
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/**
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* Serializes the scalars from the given dataset to a JSON-style object and resets them.
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* The returned structure looks like:
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* {"process": {"category1.probe":1,"category1.other_probe":false,...}, ... }.
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*
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* @param aDataset DATASET_RELEASE_CHANNEL_OPTOUT or DATASET_RELEASE_CHANNEL_OPTIN.
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* @param [aClear=false] Whether to clear out the scalars after snapshotting.
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*/
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[implicit_jscontext, optional_argc]
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jsval snapshotScalars(in uint32_t aDataset, [optional] in boolean aClear);
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/**
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* Adds the value to the given keyed scalar.
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*
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* @param aName The scalar name.
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* @param aKey The key name.
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* @param aValue The numeric value to add to the scalar. Only unsigned integers supported.
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*/
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[implicit_jscontext]
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void keyedScalarAdd(in ACString aName, in AString aKey, in jsval aValue);
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/**
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* Sets the keyed scalar to the given value.
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*
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* @param aName The scalar name.
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* @param aKey The key name.
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* @param aValue The value to set the scalar to. If the type of aValue doesn't match the
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* type of the scalar, the function will fail.
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*/
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[implicit_jscontext]
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void keyedScalarSet(in ACString aName, in AString aKey, in jsval aValue);
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/**
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* Sets the keyed scalar to the maximum of the current and the passed value.
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*
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* @param aName The scalar name.
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* @param aKey The key name.
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* @param aValue The numeric value to set the scalar to. Only unsigned integers supported.
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*/
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[implicit_jscontext]
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void keyedScalarSetMaximum(in ACString aName, in AString aKey, in jsval aValue);
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/**
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* Serializes the keyed scalars from the given dataset to a JSON-style object and
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* resets them.
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* The returned structure looks like:
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* { "process": { "category1.probe": { "key_1": 2, "key_2": 1, ... }, ... }, ... }
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*
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* @param aDataset DATASET_RELEASE_CHANNEL_OPTOUT or DATASET_RELEASE_CHANNEL_OPTIN.
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* @param [aClear=false] Whether to clear out the scalars after snapshotting.
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*/
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[implicit_jscontext, optional_argc]
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jsval snapshotKeyedScalars(in uint32_t aDataset, [optional] in boolean aClear);
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/**
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* Resets all the stored scalars. This is intended to be only used in tests.
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*/
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void clearScalars();
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/**
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* Immediately sends any Telemetry batched on this process to the parent
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* process. This is intended only to be used on process shutdown.
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*/
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void flushBatchedChildTelemetry();
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/**
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* Record an event in Telemetry.
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*
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* @param aCategory The category name.
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* @param aMethod The method name.
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* @param aMethod The object name.
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* @param aValue An optional string value to record.
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* @param aExtra An optional object of the form (string -> string).
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* It should only contain registered extra keys.
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*
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* @throws NS_ERROR_INVALID_ARG When trying to record an unknown event.
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*/
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[implicit_jscontext, optional_argc]
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void recordEvent(in ACString aCategory, in ACString aMethod, in ACString aObject, [optional] in jsval aValue, [optional] in jsval extra);
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/**
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* Enable recording of events in a category.
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* Events default to recording disabled. This allows to toggle recording for all events
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* in the specified category.
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*
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* @param aCategory The category name.
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* @param aEnabled Whether recording is enabled for events in that category.
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*/
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void setEventRecordingEnabled(in ACString aCategory, in boolean aEnabled);
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/**
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* Serializes the recorded events to a JSON-appropriate array and optionally resets them.
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* The returned structure looks like this:
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* [
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* // [timestamp, category, method, object, stringValue, extraValues]
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* [43245, "category1", "method1", "object1", "string value", null],
|
|
* [43258, "category1", "method2", "object1", null, {"key1": "string value"}],
|
|
* ...
|
|
* ]
|
|
*
|
|
* @param aDataset DATASET_RELEASE_CHANNEL_OPTOUT or DATASET_RELEASE_CHANNEL_OPTIN.
|
|
* @param [aClear=false] Whether to clear out the scalars after snapshotting.
|
|
*/
|
|
[implicit_jscontext, optional_argc]
|
|
jsval snapshotEvents(in uint32_t aDataset, [optional] in boolean aClear);
|
|
|
|
/**
|
|
* Register new events to record them from addons. This allows registering multiple
|
|
* events for a category. They will be valid only for the current Firefox session.
|
|
* Note that events shipping in Firefox should be registered in Events.yaml.
|
|
*
|
|
* @param aCategory The unique category the events are registered in.
|
|
* @param aEventData An object that contains registration data for 1-N events of the form:
|
|
* {
|
|
* "categoryName": {
|
|
* "methods": ["test1"],
|
|
* "objects": ["object1"],
|
|
* "record_on_release": false,
|
|
* "extra_keys": ["key1", "key2"], // optional
|
|
* "expired": false // optional, defaults to false.
|
|
* },
|
|
* ...
|
|
* }
|
|
* @param aEventData.<name>.methods List of methods for this event entry.
|
|
* @param aEventData.<name>.objects List of objects for this event entry.
|
|
* @param aEventData.<name>.extra_keys Optional, list of allowed extra keys for this event entry.
|
|
* @param aEventData.<name>.record_on_release Optional, whether to record this data on release.
|
|
* Defaults to false.
|
|
* @param aEventData.<name>.expired Optional, whether this event entry is expired. This allows
|
|
* recording it without error, but it will be discarded. Defaults to false.
|
|
*/
|
|
[implicit_jscontext]
|
|
void registerEvents(in ACString aCategory, in jsval aEventData);
|
|
|
|
/**
|
|
* Parent process only. Register new scalars to record them from addons. This
|
|
* allows registering multiple scalars for a category. They will be valid only for
|
|
* the current Firefox session.
|
|
* Note that scalars shipping in Firefox should be registered in Scalars.yaml.
|
|
*
|
|
* @param aCategoryName The unique category the scalars are registered in.
|
|
* @param aScalarData An object that contains registration data for multiple scalars in the form:
|
|
* {
|
|
* "sample_scalar": {
|
|
* "kind": Ci.nsITelemetry.SCALAR_TYPE_COUNT,
|
|
* "keyed": true, //optional, defaults to false
|
|
* "record_on_release: true, // optional, defaults to false
|
|
* "expired": false // optional, defaults to false.
|
|
* },
|
|
* ...
|
|
* }
|
|
* @param aScalarData.<name>.kind One of the scalar types defined in this file (SCALAR_TYPE_*)
|
|
* @param aScalarData.<name>.keyed Optional, whether this is a keyed scalar or not. Defaults to false.
|
|
* @param aScalarData.<name>.record_on_release Optional, whether to record this data on release.
|
|
* Defaults to false.
|
|
* @param aScalarData.<name>.expired Optional, whether this scalar entry is expired. This allows
|
|
* recording it without error, but it will be discarded. Defaults to false.
|
|
*/
|
|
[implicit_jscontext]
|
|
void registerScalars(in ACString aCategoryName, in jsval aScalarData);
|
|
|
|
/**
|
|
* Resets all the stored events. This is intended to be only used in tests.
|
|
*/
|
|
void clearEvents();
|
|
};
|