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360 lines
14 KiB
Plaintext
360 lines
14 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(68e82b42-cad2-411f-857b-b64ea9377929)]
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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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*/
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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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/**
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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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* An object containing a snapshot from all of the currently registered histograms.
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* { name1: {data1}, name2:{data2}...}
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* where data is consists of the following properties:
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* min - Minimal 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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* or HISTOGRAM_COUNT
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* counts - array representing contents of the buckets in the histogram
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* ranges - an array with calculated bucket sizes
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* sum - sum of the bucket contents
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* static - true for histograms defined in TelemetryHistograms.h, false for ones defined with newHistogram
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*/
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[implicit_jscontext]
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readonly attribute jsval histogramSnapshots;
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/**
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* Get a snapshot of the internally duplicated subsession histograms.
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* @param clear Whether to clear out the subsession histograms after snapshotting.
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* @return An object as histogramSnapshots, except this contains the internally duplicated histograms for subsession telemetry.
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*/
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[implicit_jscontext]
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jsval snapshotSubsessionHistograms([optional] in boolean clear);
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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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* 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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* An array of thread hang stats,
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* [<thread>, <thread>, ...]
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* <thread> represents a single thread,
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* {"name": "<name>",
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* "activity": <time>,
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* "hangs": [<hang>, <hang>, ...]}
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* <time> represents a histogram of time intervals in milliseconds,
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* with the same format as histogramSnapshots
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* <hang> represents a particular hang,
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* {"stack": <stack>, "nativeStack": <stack>, "histogram": <time>}
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* <stack> represents the hang's stack,
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* ["<frame_0>", "<frame_1>", ...]
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*/
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[implicit_jscontext]
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readonly attribute jsval threadHangStats;
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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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* Returns an array whose values are the names of histograms defined
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* in Histograms.json.
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*
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* @param dataset - DATASET_RELEASE_CHANNEL_OPTOUT or DATASET_RELEASE_CHANNEL_OPTIN
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*/
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void registeredHistograms(in uint32_t dataset,
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out uint32_t count,
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[retval, array, size_is(count)] out string histograms);
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/**
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* Create and return a histogram. Parameters:
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*
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* @param name Unique histogram name
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* @param expiration Expiration version
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* @param type - HISTOGRAM_EXPONENTIAL, HISTOGRAM_LINEAR or HISTOGRAM_BOOLEAN
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* @param min - Minimal bucket size
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* @param max - Maximum bucket size
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* @param bucket_count - number of buckets in the histogram.
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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
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* dataset() - identifies what dataset this is in: DATASET_RELEASE_CHANNEL_OPTOUT or ...OPTIN
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*/
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[implicit_jscontext, optional_argc]
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jsval newHistogram(in ACString name, in ACString expiration,
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in unsigned long histogram_type,
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[optional] in uint32_t min,
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[optional] in uint32_t max,
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[optional] in uint32_t bucket_count);
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/**
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* Create a histogram using the current state of an existing histogram. The
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* existing histogram must be registered in TelemetryHistograms.h.
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*
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* @param name Unique histogram name
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* @param existing_name Existing histogram name
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* The returned object has the same functions as a histogram returned from newHistogram.
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*/
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[implicit_jscontext]
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jsval histogramFrom(in ACString name, in ACString existing_name);
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/**
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* Same as newHistogram above, but for histograms registered in TelemetryHistograms.h.
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*
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* @param id - unique identifier from TelemetryHistograms.h
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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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* An object containing a snapshot from all of the currently registered keyed histograms.
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* { name1: {histogramData1}, name2:{histogramData2}...}
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* where the histogramData is as described in histogramSnapshots.
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*/
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[implicit_jscontext]
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readonly attribute jsval keyedHistogramSnapshots;
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/**
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* Create and return a keyed histogram. Parameters:
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*
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* @param name Unique histogram name
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* @param expiration Expiration version
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* @param type - HISTOGRAM_EXPONENTIAL, HISTOGRAM_LINEAR, HISTOGRAM_BOOLEAN, HISTOGRAM_FLAG or HISTOGRAM_COUNT
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* @param min - Minimal bucket size
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* @param max - Maximum bucket size
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* @param bucket_count - number of buckets in the histogram.
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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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* dataset() - identifies what dataset this is in: DATASET_RELEASE_CHANNEL_OPTOUT or ...OPTIN
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*/
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[implicit_jscontext, optional_argc]
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jsval newKeyedHistogram(in ACString name,
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in ACString expiration,
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in unsigned long histogram_type,
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[optional] in uint32_t min,
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[optional] in uint32_t max,
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[optional] in uint32_t bucket_count);
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/**
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* Returns an array whose values are the names of histograms defined
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* in Histograms.json.
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*
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* @param dataset - DATASET_RELEASE_CHANNEL_OPTOUT or ...OPTIN
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*/
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void registeredKeyedHistograms(in uint32_t dataset, out uint32_t count,
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[retval, array, size_is(count)] out string histograms);
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/**
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* Same as newKeyedHistogram above, but for histograms 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 same functions as a histogram returned from newKeyedHistogram.
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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 can submit official results (for base or extended
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* data). This is true on official builds with built in support for Mozilla Telemetry
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* reporting.
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*/
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readonly attribute boolean isOfficialTelemetry;
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/** Addon telemetry hooks */
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/**
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* Register a histogram for an addon. Throws an error if the
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* histogram name has been registered previously.
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*
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* @param addon_id - Unique ID of the addon
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* @param name - Unique histogram name
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* @param histogram_type - HISTOGRAM_EXPONENTIAL, HISTOGRAM_LINEAR,
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* HISTOGRAM_BOOLEAN or HISTOGRAM_COUNT
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* @param min - Minimal bucket size
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* @param max - Maximum bucket size
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* @param bucket_count - number of buckets in the histogram
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*/
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[optional_argc]
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void registerAddonHistogram(in ACString addon_id, in ACString name,
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in unsigned long histogram_type,
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[optional] in uint32_t min,
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[optional] in uint32_t max,
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[optional] in uint32_t bucket_count);
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/**
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* Return a histogram previously registered via
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* registerAddonHistogram. Throws an error if the id/name combo has
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* not been registered via registerAddonHistogram.
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*
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* @param addon_id - Unique ID of the addon
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* @param name - Registered histogram name
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*
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* The returned object has the same functions as a histogram returned
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* from newHistogram.
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*/
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[implicit_jscontext]
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jsval getAddonHistogram(in ACString addon_id, in ACString name);
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/**
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* Delete all histograms associated with the given addon id.
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*
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* @param addon_id - Unique ID of the addon
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*/
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void unregisterAddonHistograms(in ACString addon_id);
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/**
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* An object containing a snapshot from all of the currently
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* registered addon histograms.
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* { addon-id1 : data1, ... }
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*
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* where data is an object whose properties are the names of the
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* addon's histograms and whose corresponding values are as in
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* histogramSnapshots.
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*/
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[implicit_jscontext]
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readonly attribute jsval addonHistogramSnapshots;
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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 seconds 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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