zircon/kernel/object/event_dispatcher.cc

// Copyright 2016 The Fuchsia Authors
//
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/MIT

#include "object/event_dispatcher.h"

#include <lib/counters.h>
#include <zircon/errors.h>
#include <zircon/rights.h>
#include <zircon/types.h>

#include <fbl/alloc_checker.h>

KCOUNTER(dispatcher_event_create_count, "dispatcher.event.create")
KCOUNTER(dispatcher_event_destroy_count, "dispatcher.event.destroy")

zx_status_t EventDispatcher::Create(uint32_t options, KernelHandle<EventDispatcher>* handle,
                                    zx_rights_t* rights) {
  fbl::AllocChecker ac;
  KernelHandle event(fbl::AdoptRef(new (&ac) EventDispatcher(options)));
  if (!ac.check())
    return ZX_ERR_NO_MEMORY;

  *rights = default_rights();
  *handle = ktl::move(event);
  return ZX_OK;
}

EventDispatcher::EventDispatcher(uint32_t options) {
  kcounter_add(dispatcher_event_create_count, 1);
}

EventDispatcher::~EventDispatcher() { kcounter_add(dispatcher_event_destroy_count, 1); }