зеркало из https://github.com/mozilla/gecko-dev.git
144 строки
4.3 KiB
C++
144 строки
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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// Original code by: ekr@rtfm.com
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// Implementation of the NR timer interface
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// Some code here copied from nrappkit. The license was.
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/**
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Copyright (C) 2004, Network Resonance, Inc.
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Copyright (C) 2006, Network Resonance, Inc.
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All Rights Reserved
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of Network Resonance, Inc. nor the name of any
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contributors to this software may be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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ekr@rtfm.com Sun Feb 22 19:35:24 2004
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*/
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#include "nsCOMPtr.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIEventTarget.h"
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#include "nsITimer.h"
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#include "nsNetCID.h"
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extern "C" {
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#include "nr_api.h"
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#include "async_timer.h"
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}
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namespace mozilla {
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class nrappkitTimerCallback : public nsITimerCallback
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSITIMERCALLBACK
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nrappkitTimerCallback(NR_async_cb cb, void *cb_arg) : cb_(cb), cb_arg_(cb_arg) {}
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private:
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virtual ~nrappkitTimerCallback() {}
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protected:
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/* additional members */
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NR_async_cb cb_;
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void *cb_arg_;
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};
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// We're going to release ourself in the callback, so we need to be threadsafe
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NS_IMPL_THREADSAFE_ISUPPORTS1(nrappkitTimerCallback, nsITimerCallback)
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NS_IMETHODIMP nrappkitTimerCallback::Notify(nsITimer *timer) {
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r_log(LOG_GENERIC, LOG_DEBUG, "Timer callback fired");
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cb_(0, 0, cb_arg_);
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// Allow the timer to go away.
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timer->Release();
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return NS_OK;
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}
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} // close namespace
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using namespace mozilla;
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int NR_async_timer_set(int timeout, NR_async_cb cb, void *arg, char *func,
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int l, void **handle) {
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nsresult rv;
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nsCOMPtr<nsITimer> timer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
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if (NS_FAILED(rv)) {
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return(R_FAILED);
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}
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rv = timer->InitWithCallback(new nrappkitTimerCallback(cb, arg),
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timeout, nsITimer::TYPE_ONE_SHOT);
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if (NS_FAILED(rv)) {
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return R_FAILED;
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}
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// We need an AddRef here to keep the timer alive, per the spec.
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timer->AddRef();
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if (handle)
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*handle = timer.get();
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// Bug 818806: if we have no handle to the timer, we have no way to avoid
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// it leaking (though not the callback object) if it never fires (or if
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// we exit before it fires).
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return 0;
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}
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int NR_async_schedule(NR_async_cb cb, void *arg, char *func, int l) {
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return NR_async_timer_set(0, cb, arg, func, l, nullptr);
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}
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int NR_async_timer_cancel(void *handle) {
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if (!handle)
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return 0;
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nsITimer *timer = static_cast<nsITimer *>(handle);
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timer->Cancel();
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// Allow the timer to go away.
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timer->Release();
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return 0;
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}
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