gecko-dev/js/public/Interrupt.h

42 строки
1.6 KiB
C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef js_Interrupt_h
#define js_Interrupt_h
#include "jstypes.h"
struct JS_PUBLIC_API JSContext;
using JSInterruptCallback = bool (*)(JSContext*);
extern JS_PUBLIC_API bool JS_CheckForInterrupt(JSContext* cx);
/*
* These functions allow setting an interrupt callback that will be called
* from the JS thread some time after any thread triggered the callback using
* JS_RequestInterruptCallback(cx).
*
* To schedule the GC and for other activities the engine internally triggers
* interrupt callbacks. The embedding should thus not rely on callbacks being
* triggered through the external API only.
*
* Important note: Additional callbacks can occur inside the callback handler
* if it re-enters the JS engine. The embedding must ensure that the callback
* is disconnected before attempting such re-entry.
*/
extern JS_PUBLIC_API bool JS_AddInterruptCallback(JSContext* cx,
JSInterruptCallback callback);
extern JS_PUBLIC_API bool JS_DisableInterruptCallback(JSContext* cx);
extern JS_PUBLIC_API void JS_ResetInterruptCallback(JSContext* cx, bool enable);
extern JS_PUBLIC_API void JS_RequestInterruptCallback(JSContext* cx);
extern JS_PUBLIC_API void JS_RequestInterruptCallbackCanWait(JSContext* cx);
#endif // js_Interrupt_h