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construct/modules/future.cc

69 lines
1.7 KiB
C++

/*
* 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.
*/
#include <ircd/js/js.h>
namespace ircd {
namespace js {
struct future
:trap
{
uint64_t id_ctr;
void on_new(object::handle, object &, const args &args) override;
future();
}
static future;
future::future()
:trap
{
"future",
JSCLASS_HAS_PRIVATE
}
,id_ctr{0}
{
}
void
future::on_new(object::handle, object &obj, const args &args)
{
auto &task(task::get());
if(args.has(0) && type(args[0]) == JSTYPE_FUNCTION)
set(obj, "callback", args[0]);
const auto id(++id_ctr);
task.pending_add(id);
set(obj, "id", id);
}
} // namespace js
} // namespace ircd
using namespace ircd;
mapi::header IRCD_MODULE
{
"Fundamental yieldable object for asynchronicity.",
};