2011-07-27 15:44:43 -07:00
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is an implementation of watchpoints for SpiderMonkey.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Jason Orendorff <jorendorff@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef jswatchpoint_h___
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#define jswatchpoint_h___
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#include "jshashtable.h"
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#include "jsprvtd.h"
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#include "jsapi.h"
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#include "jsvalue.h"
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namespace js {
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struct WatchKey {
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WatchKey() {}
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WatchKey(JSObject *obj, jsid id) : object(obj), id(id) {}
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JSObject *object;
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jsid id;
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};
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struct Watchpoint {
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JSWatchPointHandler handler;
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JSObject *closure;
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bool held; /* true if currently running handler */
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};
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template <>
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struct DefaultHasher<WatchKey> {
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typedef WatchKey Lookup;
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static inline js::HashNumber hash(const Lookup &key);
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static bool match(const WatchKey &k, const Lookup &l) {
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return k.object == l.object && k.id == l.id;
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}
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};
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class WatchpointMap {
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public:
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typedef HashMap<WatchKey, Watchpoint, DefaultHasher<WatchKey>, SystemAllocPolicy> Map;
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bool init();
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bool watch(JSContext *cx, JSObject *obj, jsid id,
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JSWatchPointHandler handler, JSObject *closure);
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void unwatch(JSObject *obj, jsid id,
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JSWatchPointHandler *handlerp, JSObject **closurep);
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void unwatchObject(JSObject *obj);
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void clear();
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bool triggerWatchpoint(JSContext *cx, JSObject *obj, jsid id, Value *vp);
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static bool markAllIteratively(JSTracer *trc);
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bool markIteratively(JSTracer *trc);
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2011-08-10 22:58:28 -07:00
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static void sweepAll(JSContext *cx);
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void sweep(JSContext *cx);
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2011-07-27 15:44:43 -07:00
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private:
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Map map;
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};
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}
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#endif /* jswatchpoint_h___ */
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