diff -r 000000000000 -r 4f2f89ce4247 WebKit2/WebProcess/Plugins/NPRuntimeUtilities.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WebKit2/WebProcess/Plugins/NPRuntimeUtilities.cpp Fri Sep 17 09:02:29 2010 +0300 @@ -0,0 +1,112 @@ +/* + * Copyright (C) 2010 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "NPRuntimeUtilities.h" + +namespace WebKit { + +NPObject* createNPObject(NPP npp, NPClass* npClass) +{ + ASSERT(npClass); + + NPObject* npObject; + if (npClass->allocate) + npObject = npClass->allocate(npp, npClass); + else { + // This should really call NPN_MemAlloc, but we know that it uses malloc + // under the hood so it's fine. + npObject = static_cast(malloc(sizeof(NPObject))); + } + + npObject->_class = npClass; + npObject->referenceCount = 1; + + return npObject; +} + +void deallocateNPObject(NPObject* npObject) +{ + ASSERT(npObject); + if (!npObject) + return; + + if (npObject->_class->deallocate) + npObject->_class->deallocate(npObject); + else { + // This should really call NPN_MemFree, but we know that it uses free + // under the hood so it's fine. + free(npObject); + } +} + +void retainNPObject(NPObject* npObject) +{ + ASSERT(npObject); + if (!npObject) + return; + + npObject->referenceCount++; +} + +void releaseNPObject(NPObject* npObject) +{ + ASSERT(npObject); + if (!npObject) + return; + + ASSERT(npObject->referenceCount >= 1); + npObject->referenceCount--; + if (!npObject->referenceCount) + deallocateNPObject(npObject); +} + +void releaseNPVariantValue(NPVariant* variant) +{ + ASSERT(variant); + + switch (variant->type) { + case NPVariantType_Void: + case NPVariantType_Null: + case NPVariantType_Bool: + case NPVariantType_Int32: + case NPVariantType_Double: + // Nothing to do. + break; + + case NPVariantType_String: + free(const_cast(variant->value.stringValue.UTF8Characters)); + variant->value.stringValue.UTF8Characters = 0; + variant->value.stringValue.UTF8Length = 0; + break; + case NPVariantType_Object: + releaseNPObject(variant->value.objectValue); + variant->value.objectValue = 0; + break; + } + + variant->type = NPVariantType_Void; +} + +} // namespace WebKit