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construct/include/ircd/js/compartment_guard.h
Jason Volk 0e2b8600e5 ircd::js: Moz people recommend thread_local JSRuntime/JSContext;
There is no reason to clutter most arguments with contexts. Additionally
these will be merged in the future SpiderMonkey. There is only one
JSRuntime/JSContext per thread and it must be locked when in use.
2016-11-13 16:29:43 -08:00

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1.5 KiB
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/*
* Copyright (C) 2016 Charybdis Development Team
* Copyright (C) 2016 Jason Volk <jason@zemos.net>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#define HAVE_IRCD_JS_COMPARTMENT_GUARD_H
namespace ircd {
namespace js {
class compartment_guard
{
JSCompartment *cp;
public:
compartment_guard(JSObject &);
~compartment_guard() noexcept;
};
inline
compartment_guard::compartment_guard(JSObject &obj)
:cp{JS_EnterCompartment(*cx, &obj)}
{
}
inline
compartment_guard::~compartment_guard()
noexcept
{
JS_LeaveCompartment(*cx, cp);
}
} // namespace js
} // namespace ircd