mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
148 lines
4.3 KiB
C++
148 lines
4.3 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Web Workers.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* The Mozilla Foundation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2011
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Ben Turner <bent.mozilla@gmail.com> (Original Author)
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#include "ChromeWorkerScope.h"
|
|
|
|
#include "jsapi.h"
|
|
|
|
#include "nsXPCOM.h"
|
|
#include "nsNativeCharsetUtils.h"
|
|
#include "nsStringGlue.h"
|
|
|
|
#include "WorkerPrivate.h"
|
|
|
|
#define CTYPES_STR "ctypes"
|
|
|
|
USING_WORKERS_NAMESPACE
|
|
|
|
namespace {
|
|
|
|
#ifdef BUILD_CTYPES
|
|
char*
|
|
UnicodeToNative(JSContext* aCx, const jschar* aSource, size_t aSourceLen)
|
|
{
|
|
nsDependentString unicode(aSource, aSourceLen);
|
|
|
|
nsCAutoString native;
|
|
if (NS_FAILED(NS_CopyUnicodeToNative(unicode, native))) {
|
|
JS_ReportError(aCx, "Could not convert string to native charset!");
|
|
return nsnull;
|
|
}
|
|
|
|
char* result = static_cast<char*>(JS_malloc(aCx, native.Length() + 1));
|
|
if (!result) {
|
|
return nsnull;
|
|
}
|
|
|
|
memcpy(result, native.get(), native.Length());
|
|
result[native.Length()] = 0;
|
|
return result;
|
|
}
|
|
|
|
JSCTypesCallbacks gCTypesCallbacks = {
|
|
UnicodeToNative
|
|
};
|
|
|
|
JSBool
|
|
CTypesLazyGetter(JSContext* aCx, JSObject* aObj, jsid aId, jsval* aVp)
|
|
{
|
|
NS_ASSERTION(JS_GetGlobalObject(aCx) == aObj, "Not a global object!");
|
|
NS_ASSERTION(JSID_IS_STRING(aId), "Bad id!");
|
|
NS_ASSERTION(JS_FlatStringEqualsAscii(JSID_TO_FLAT_STRING(aId), CTYPES_STR),
|
|
"Bad id!");
|
|
|
|
WorkerPrivate* worker = GetWorkerPrivateFromContext(aCx);
|
|
NS_ASSERTION(worker->IsChromeWorker(), "This should always be true!");
|
|
|
|
if (!worker->DisableMemoryReporter()) {
|
|
return false;
|
|
}
|
|
|
|
jsval ctypes;
|
|
if (!JS_DeletePropertyById(aCx, aObj, aId) ||
|
|
!JS_InitCTypesClass(aCx, aObj) ||
|
|
!JS_GetPropertyById(aCx, aObj, aId, &ctypes)) {
|
|
return false;
|
|
}
|
|
JS_SetCTypesCallbacks(JSVAL_TO_OBJECT(ctypes), &gCTypesCallbacks);
|
|
return JS_GetPropertyById(aCx, aObj, aId, aVp);
|
|
}
|
|
#endif
|
|
|
|
inline bool
|
|
DefineCTypesLazyGetter(JSContext* aCx, JSObject* aGlobal)
|
|
{
|
|
#ifdef BUILD_CTYPES
|
|
{
|
|
JSString* ctypesStr = JS_InternString(aCx, CTYPES_STR);
|
|
if (!ctypesStr) {
|
|
return false;
|
|
}
|
|
|
|
jsid ctypesId = INTERNED_STRING_TO_JSID(aCx, ctypesStr);
|
|
|
|
// We use a lazy getter here to let us unregister the blocking memory
|
|
// reporter since ctypes can easily block the worker thread and we can
|
|
// deadlock. Remove once bug 673323 is fixed.
|
|
if (!JS_DefinePropertyById(aCx, aGlobal, ctypesId, JSVAL_VOID,
|
|
CTypesLazyGetter, NULL, 0)) {
|
|
return false;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
} // anonymous namespace
|
|
|
|
BEGIN_WORKERS_NAMESPACE
|
|
|
|
namespace chromeworker {
|
|
|
|
bool
|
|
DefineChromeWorkerFunctions(JSContext* aCx, JSObject* aGlobal)
|
|
{
|
|
// Currently ctypes is the only special property given to ChromeWorkers.
|
|
return DefineCTypesLazyGetter(aCx, aGlobal);
|
|
}
|
|
|
|
} // namespace chromeworker
|
|
|
|
END_WORKERS_NAMESPACE
|