source: webkit/trunk/JavaScriptCore/runtime/GCActivityCallback.cpp@ 67583

Last change on this file since 67583 was 64585, checked in by [email protected], 15 years ago

https://bugs.webkit.org/show_bug.cgi?id=41318
GC should reclaim garbage even when new objects are not being allocated rapidly

Patch by Nathan Lawrence <[email protected]> on 2010-08-03
Reviewed by Oliver Hunt.

Added a callback in JavaScriptCore that gets triggered after an
allocation causes the heap to reset. This is useful for adding a
timer that will trigger garbage collection after the "last" allocation.

Also needed was to add lock and unlock methods to JSLock that needed
only a JSGlobalData object versus an ExecState object.

(JSC::JIT::emit_op_put_by_val):

  • runtime/Collector.cpp:

(JSC::Heap::Heap):
(JSC::Heap::reset):
(JSC::Heap::setActivityCallback):

  • runtime/Collector.h:
  • runtime/GCActivityCallback.cpp: Added.

(JSC::DefaultGCActivityCallback::DefaultGCActivityCallback):
(JSC::DefaultGCActivityCallback::~DefaultGCActivityCallback):
(JSC::DefaultGCActivityCallback::operator()):

  • runtime/GCActivityCallback.h: Added.

(JSC::GCActivityCallback::~GCActivityCallback):
(JSC::GCActivityCallback::operator()):
(JSC::GCActivityCallback::GCActivityCallback):
(JSC::DefaultGCActivityCallback::create):

  • runtime/GCActivityCallbackCF.cpp: Added.

(JSC::DefaultGCActivityCallbackPlatformData::trigger):
(JSC::DefaultGCActivityCallback::DefaultGCActivityCallback):
(JSC::DefaultGCActivityCallback::~DefaultGCActivityCallback):
(JSC::DefaultGCActivityCallback::operator()):

  • runtime/JSLock.cpp:

(JSC::JSLock::JSLock):

  • runtime/JSLock.h:
File size: 1.8 KB
Line 
1/*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "GCActivityCallback.h"
31
32namespace JSC {
33
34struct DefaultGCActivityCallbackPlatformData {
35};
36
37DefaultGCActivityCallback::DefaultGCActivityCallback(Heap* heap)
38{
39}
40
41DefaultGCActivityCallback::~DefaultGCActivityCallback()
42{
43}
44
45void DefaultGCActivityCallback::operator()()
46{
47}
48
49}
50
Note: See TracBrowser for help on using the repository browser.