/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 8 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "nsISupports.idl" #include "nsIFile.idl" [scriptable,function, uuid(3d3b9075-5549-4244-9c08-b64fefa1dd60)] interface nsIFetchTelemetryDataCallback : nsISupports { void complete(); }; [scriptable, uuid(273d2dd0-6c63-475a-b864-cb65160a1909)] interface nsITelemetry : nsISupports { /** * Histogram types: * HISTOGRAM_EXPONENTIAL - buckets increase exponentially * HISTOGRAM_LINEAR - buckets increase linearly * HISTOGRAM_BOOLEAN - For storing 0/1 values * HISTOGRAM_FLAG - For storing a single value; its count is always == 1. * HISTOGRAM_COUNT - For storing counter values without bucketing. * HISTOGRAM_CATEGORICAL - For storing enumerated values by label. */ const unsigned long HISTOGRAM_EXPONENTIAL = 0; const unsigned long HISTOGRAM_LINEAR = 1; const unsigned long HISTOGRAM_BOOLEAN = 2; const unsigned long HISTOGRAM_FLAG = 3; const unsigned long HISTOGRAM_COUNT = 4; const unsigned long HISTOGRAM_CATEGORICAL = 5; /** * Scalar types: * SCALAR_TYPE_COUNT - for storing a numeric value * SCALAR_TYPE_STRING - for storing a string value * SCALAR_TYPE_BOOLEAN - for storing a boolean value */ const unsigned long SCALAR_TYPE_COUNT = 0; const unsigned long SCALAR_TYPE_STRING = 1; const unsigned long SCALAR_TYPE_BOOLEAN = 2; /** * Dataset types: * DATASET_RELEASE_CHANNEL_OPTOUT - the basic dataset that is on-by-default on all channels * DATASET_RELEASE_CHANNEL_OPTIN - the extended dataset that is opt-in on release, * opt-out on pre-release channels. */ const unsigned long DATASET_RELEASE_CHANNEL_OPTOUT = 0; const unsigned long DATASET_RELEASE_CHANNEL_OPTIN = 1; /** * Serializes the histograms from the given dataset to a JSON-style object. * The returned structure looks like: * { process1: {name1: {histogramData1}, name2:{histogramData2}...}} * * Where histogramDataN has the following properties: * min - minimum bucket size * max - maximum bucket size * histogram_type - HISTOGRAM_EXPONENTIAL, HISTOGRAM_LINEAR, HISTOGRAM_BOOLEAN, * HISTOGRAM_FLAG, HISTOGRAM_COUNT, or HISTOGRAM_CATEGORICAL * counts - array representing contents of the buckets in the histogram * ranges - array with calculated bucket sizes * sum - sum of the bucket contents * * @param aDataset DATASET_RELEASE_CHANNEL_OPTOUT or DATASET_RELEASE_CHANNEL_OPTIN. * @param aSubsession Whether to return the internally-duplicated subsession histograms * @param aClear Whether to clear out the subsession histograms after snapshotting (only works if aSubsession is true) */ [implicit_jscontext] jsval snapshotHistograms(in uint32_t aDataset, in boolean aSubsession, in boolean aClear); /** * The amount of time, in milliseconds, that the last session took * to shutdown. Reads as 0 to indicate failure. */ readonly attribute uint32_t lastShutdownDuration; /** * The number of failed profile lock attempts that have occurred prior to * successfully locking the profile */ readonly attribute uint32_t failedProfileLockCount; /* * An object containing information about slow SQL statements. * * { * mainThread: { "sqlString1": [, ], "sqlString2": [...], ... }, * otherThreads: { "sqlString3": [, ], "sqlString4": [...], ... } * } * * where: * mainThread: Slow statements that executed on the main thread * otherThreads: Slow statements that executed on a non-main thread * sqlString - String of the offending statement (see note) * hit count - The number of times this statement required longer than the threshold time to execute * total time - The sum of all execution times above the threshold time for this statement * * Note that dynamic SQL strings and SQL strings executed against addon DBs could contain private information. * This property represents such SQL as aggregate database-level stats and the sqlString contains the database * filename instead. */ [implicit_jscontext] readonly attribute jsval slowSQL; /* * See slowSQL above. * * An object containing full strings of every slow SQL statement if toolkit.telemetry.debugSlowSql = true * The returned SQL strings may contain private information and should not be reported to Telemetry. */ [implicit_jscontext] readonly attribute jsval debugSlowSQL; /* * An object containing information about Webrtc related stats. For now it * only contains local and remote ICE candidates avaiable when a Webrtc * PeerConnection gets terminated. */ [implicit_jscontext] readonly attribute jsval webrtcStats; /** * A number representing the highest number of concurrent threads * reached during this session. */ readonly attribute uint32_t maximalNumberOfConcurrentThreads; /* * An array of chrome hang reports. Each element is a hang report represented * as an object containing the hang duration, call stack PCs and information * about modules in memory. */ [implicit_jscontext] readonly attribute jsval chromeHangs; /* * Record the current thread's call stack on demand. Note that, the stack is * only captured at the first call. All subsequent calls result in incrementing * the capture counter without doing actual stack unwinding. * * @param aKey - A user defined key associated with the captured stack. * * NOTE: Unwinding call stacks is an expensive operation performance-wise. */ void captureStack(in ACString name); /* * Returns a snapshot of captured stacks. The data has the following structure: * * { * "memoryMap": [ * ["wgdi32.pdb", "08A541B5942242BDB4AEABD8C87E4CFF2"], * ["igd10iumd32.pdb", "D36DEBF2E78149B5BE1856B772F1C3991"], * ... other entries in the format ["module name", "breakpad identifier"] ... * ], * "stacks": [ * [ * [ * 0, // the module index or -1 for invalid module indices * 190649 // the offset of this program counter in its module or an absolute pc * ], * [1, 2540075], * ... other frames ... * ], * ... other stacks ... * ], * "captures": [["string-key", stack-index, count], ... ] * } * * @param clear Whether to clear out the subsession histograms after taking a snapshot. * * @return A snapshot of captured stacks. */ [implicit_jscontext] jsval snapshotCapturedStacks([optional] in boolean clear); /* * Asynchronously get an array of the modules loaded in the process. * * The data has the following structure: * * [ * { * "name": , // Name of the module file (e.g. xul.dll) * "version": , // Version of the module * "debugName": , // ID of the debug information file * "debugID": , // Name of the debug information file * }, * ... * ] * * @return A promise that resolves to an array of modules or rejects with NS_ERROR_FAILURE on failure. * @throws NS_ERROR_NOT_IMPLEMENTED if the Gecko profiler is not enabled. */ [implicit_jscontext] nsISupports getLoadedModules(); /* * An object with two fields: memoryMap and stacks. * * memoryMap is a list of loaded libraries. * * stacks is a list of stacks. Each stack is a list of pairs of the form * [moduleIndex, offset]. The moduleIndex is an index into the memoryMap and * offset is an offset in the library at memoryMap[moduleIndex]. * This format is used to make it easier to send the stacks to the * symbolication server. */ [implicit_jscontext] readonly attribute jsval lateWrites; /** * Create and return a histogram registered in TelemetryHistograms.h. * * @param id - unique identifier from TelemetryHistograms.h * The returned object has the following functions: * add(int) - Adds an int value to the appropriate bucket * snapshot() - Returns a snapshot of the histogram with the same data fields as in histogramSnapshots() * clear() - Zeros out the histogram's buckets and sum. This is intended to be only used in tests. * dataset() - identifies what dataset this is in: DATASET_RELEASE_CHANNEL_OPTOUT or ...OPTIN. * This is intended to be only used in tests. */ [implicit_jscontext] jsval getHistogramById(in ACString id); /** * Serializes the keyed histograms from the given dataset to a JSON-style object. * The returned structure looks like: * { process1: {name1: {histogramData1}, name2:{histogramData2}...}} * * @param aDataset DATASET_RELEASE_CHANNEL_OPTOUT or DATASET_RELEASE_CHANNEL_OPTIN. * @param aSubsession Whether to return the internally-duplicated subsession keyed histograms * @param aClear Whether to clear out the subsession keyed histograms after snapshotting (only works if aSubsession is true) */ [implicit_jscontext] jsval snapshotKeyedHistograms(in uint32_t aDataset, in boolean aSubsession, in boolean aClear); /** * Create and return a histogram registered in TelemetryHistograms.h. * * @param id - unique identifier from TelemetryHistograms.h * The returned object has the following functions: * 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. * 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, ...}. * keys() - Returns an array with the string keys of the currently registered histograms * clear() - Clears the registered histograms from this. * This is intended to be only used in tests. * dataset() - identifies what dataset this is in: DATASET_RELEASE_CHANNEL_OPTOUT or ...OPTIN. * This is intended to be only used in tests. */ [implicit_jscontext] jsval getKeyedHistogramById(in ACString id); /** * A flag indicating if Telemetry can record base data (FHR data). This is true if the * FHR data reporting service or self-support are enabled. * * In the unlikely event that adding a new base probe is needed, please check the data * collection wiki at https://wiki.mozilla.org/Firefox/Data_Collection and talk to the * Telemetry team. */ attribute boolean canRecordBase; /** * A flag indicating if Telemetry is allowed to record extended data. Returns false if * the user hasn't opted into "extended Telemetry" on the Release channel, when the * user has explicitly opted out of Telemetry on Nightly/Aurora/Beta or if manually * set to false during tests. * * Set this to false in tests to disable gathering of extended telemetry statistics. */ attribute boolean canRecordExtended; /** * A flag indicating whether Telemetry can submit official results (for base or extended * data). This is true on official, non-debug builds with built in support for Mozilla * Telemetry reporting. */ readonly attribute boolean isOfficialTelemetry; /** * Enable/disable recording for this histogram at runtime. * Recording is enabled by default, unless listed at kRecordingInitiallyDisabledIDs[]. * Name must be a valid Histogram identifier, otherwise an assertion will be triggered. * * @param id - unique identifier from histograms.json * @param enabled - whether or not to enable recording from now on. */ void setHistogramRecordingEnabled(in ACString id, in boolean enabled); /** * Read data from the previous run. After the callback is called, the last * shutdown time is available in lastShutdownDuration and any late * writes in lateWrites. */ void asyncFetchTelemetryData(in nsIFetchTelemetryDataCallback aCallback); /** * Get statistics of file IO reports, null, if not recorded. * * The statistics are returned as an object whose propoerties are the names * of the files that have been accessed and whose corresponding values are * arrays of size three, representing startup, normal, and shutdown stages. * Each stage's entry is either null or an array with the layout * [total_time, #creates, #reads, #writes, #fsyncs, #stats] */ [implicit_jscontext] readonly attribute jsval fileIOReports; /** * Return the number of milliseconds since process start using monotonic * timestamps (unaffected by system clock changes). * @throws NS_ERROR_NOT_AVAILABLE if TimeStamp doesn't have the data. */ double msSinceProcessStart(); /** * Time since the system wide epoch. This is not a monotonic timer but * can be used across process boundaries. */ double msSystemNow(); /** * Adds the value to the given scalar. * * @param aName The scalar name. * @param aValue The numeric value to add to the scalar. Only unsigned integers supported. */ [implicit_jscontext] void scalarAdd(in ACString aName, in jsval aValue); /** * Sets the scalar to the given value. * * @param aName The scalar name. * @param aValue The value to set the scalar to. If the type of aValue doesn't match the * type of the scalar, the function will fail. For scalar string types, the this * is truncated to 50 characters. */ [implicit_jscontext] void scalarSet(in ACString aName, in jsval aValue); /** * Sets the scalar to the maximum of the current and the passed value. * * @param aName The scalar name. * @param aValue The numeric value to set the scalar to. Only unsigned integers supported. */ [implicit_jscontext] void scalarSetMaximum(in ACString aName, in jsval aValue); /** * Serializes the scalars from the given dataset to a JSON-style object and resets them. * The returned structure looks like: * {"process": {"category1.probe":1,"category1.other_probe":false,...}, ... }. * * @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 snapshotScalars(in uint32_t aDataset, [optional] in boolean aClear); /** * Adds the value to the given keyed scalar. * * @param aName The scalar name. * @param aKey The key name. * @param aValue The numeric value to add to the scalar. Only unsigned integers supported. */ [implicit_jscontext] void keyedScalarAdd(in ACString aName, in AString aKey, in jsval aValue); /** * Sets the keyed scalar to the given value. * * @param aName The scalar name. * @param aKey The key name. * @param aValue The value to set the scalar to. If the type of aValue doesn't match the * type of the scalar, the function will fail. */ [implicit_jscontext] void keyedScalarSet(in ACString aName, in AString aKey, in jsval aValue); /** * Sets the keyed scalar to the maximum of the current and the passed value. * * @param aName The scalar name. * @param aKey The key name. * @param aValue The numeric value to set the scalar to. Only unsigned integers supported. */ [implicit_jscontext] void keyedScalarSetMaximum(in ACString aName, in AString aKey, in jsval aValue); /** * Serializes the keyed scalars from the given dataset to a JSON-style object and * resets them. * The returned structure looks like: * { "process": { "category1.probe": { "key_1": 2, "key_2": 1, ... }, ... }, ... } * * @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 snapshotKeyedScalars(in uint32_t aDataset, [optional] in boolean aClear); /** * Resets all the stored scalars. This is intended to be only used in tests. */ void clearScalars(); /** * Immediately sends any Telemetry batched on this process to the parent * process. This is intended only to be used on process shutdown. */ void flushBatchedChildTelemetry(); /** * Record an event in Telemetry. * * @param aCategory The category name. * @param aMethod The method name. * @param aMethod The object name. * @param aValue An optional string value to record. * @param aExtra An optional object of the form (string -> string). * It should only contain registered extra keys. * * @throws NS_ERROR_INVALID_ARG When trying to record an unknown event. */ [implicit_jscontext, optional_argc] void recordEvent(in ACString aCategory, in ACString aMethod, in ACString aObject, [optional] in jsval aValue, [optional] in jsval extra); /** * Enable recording of events in a category. * Events default to recording disabled. This allows to toggle recording for all events * in the specified category. * * @param aCategory The category name. * @param aEnabled Whether recording is enabled for events in that category. */ void setEventRecordingEnabled(in ACString aCategory, in boolean aEnabled); /** * Serializes the recorded events to a JSON-appropriate array and optionally resets them. * The returned structure looks like this: * [ * // [timestamp, category, method, object, stringValue, extraValues] * [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..methods List of methods for this event entry. * @param aEventData..objects List of objects for this event entry. * @param aEventData..extra_keys Optional, list of allowed extra keys for this event entry. * @param aEventData..record_on_release Optional, whether to record this data on release. * Defaults to false. * @param aEventData..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..kind One of the scalar types defined in this file (SCALAR_TYPE_*) * @param aScalarData..keyed Optional, whether this is a keyed scalar or not. Defaults to false. * @param aScalarData..record_on_release Optional, whether to record this data on release. * Defaults to false. * @param aScalarData..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(); };