41 lines
1.6 KiB
JavaScript
41 lines
1.6 KiB
JavaScript
/* -*- js-indent-level: 2; indent-tabs-mode: nil -*- */
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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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/**
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* This module chooses the correct telemetry controller module to load
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* based on the process:
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*
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* - TelemetryControllerParent is loaded only in the parent process, and
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* contains code specific to the parent.
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* - TelemetryControllerContent is loaded only in content processes, and
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* contains code specific to them.
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*
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* Both the parent and the content modules load TelemetryControllerBase,
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* which contains code which is common to all processes.
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*
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* This division is important for content process memory usage and
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* startup time. The parent-specific code occupies tens of KB of memory
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* which, multiplied by the number of content processes we have, adds up
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* fast.
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*/
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// We can't use Services.appinfo here because tests stub out the appinfo
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// service, and if we touch Services.appinfo now, the built-in version
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// will be cached in place of the stub.
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const isParentProcess =
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// eslint-disable-next-line mozilla/use-services
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Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime).processType ===
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Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT;
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export var TelemetryController;
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if (isParentProcess) {
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({ TelemetryController } = ChromeUtils.importESModule(
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"resource://gre/modules/TelemetryControllerParent.sys.mjs"
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));
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} else {
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({ TelemetryController } = ChromeUtils.importESModule(
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"resource://gre/modules/TelemetryControllerContent.sys.mjs"
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));
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}
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