/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=2 et sw=2 tw=80: */ /* 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/. */
/** * Frequently we need to run a task on a background thread without blocking * the main thread, and then call a callback on the main thread with the * result. This class provides the framework for that. Subclasses must: * * (1) Override CalculateResult for the off-the-main-thread computation. * (2) Override CallCallback() for the on-the-main-thread call of the * callback.
*/ class CryptoTask : public Runnable { public:
nsresult Dispatch();
/** * Called on a background thread (never the main thread). Its result will be * passed to CallCallback on the main thread.
*/ virtual nsresult CalculateResult() = 0;
/** * Called on the main thread with the result from CalculateResult().
*/ virtualvoid CallCallback(nsresult rv) = 0;
private:
NS_IMETHOD Run() final;
nsresult mRv;
};
} // namespace mozilla
#endif// mozilla__CryptoTask_h
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