/* 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/. */

/*
 * API for supplying an external thread pool to run internal work off the main
 * thread.
 */

#ifndef js_HelperThreadAPI_h
#define js_HelperThreadAPI_h

#include <stddef.h>  // size_t

#include "jstypes.h"  // JS_PUBLIC_API

namespace JS {

class HelperThreadTask;

/**
 * Set callback to dispatch a task to an external thread pool.
 *
 * When the task runs it should call JS::RunHelperThreadTask passing |task|.
 */
using HelperThreadTaskCallback = void (*)(HelperThreadTask* task);
extern JS_PUBLIC_API void SetHelperThreadTaskCallback(
    HelperThreadTaskCallback callback, size_t threadCount, size_t stackSize);

// Function to call from external thread pool to run a helper thread task.
extern JS_PUBLIC_API void RunHelperThreadTask(HelperThreadTask* task);

// Function to get the name of the helper thread task.
extern JS_PUBLIC_API const char* GetHelperThreadTaskName(
    HelperThreadTask* task);

}  // namespace JS

#endif  // js_HelperThreadAPI_h