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Diffstat (limited to 'src/libs/xpcom18a4/java/src/nsJavaXPTCStub.h')
| -rw-r--r-- | src/libs/xpcom18a4/java/src/nsJavaXPTCStub.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/java/src/nsJavaXPTCStub.h b/src/libs/xpcom18a4/java/src/nsJavaXPTCStub.h new file mode 100644 index 00000000..90d42c8f --- /dev/null +++ b/src/libs/xpcom18a4/java/src/nsJavaXPTCStub.h @@ -0,0 +1,153 @@ +/* ***** 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 Java XPCOM Bindings. + * + * The Initial Developer of the Original Code is + * IBM Corporation. + * Portions created by the Initial Developer are Copyright (C) 2005 + * IBM Corporation. All Rights Reserved. + * + * Contributor(s): + * Javier Pedemonte (jhpedemonte@gmail.com) + * + * 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 ***** */ + +#ifndef _nsJavaXPTCStub_h_ +#define _nsJavaXPTCStub_h_ + +#include "nsXPTCUtils.h" +#include "jni.h" +#include "nsVoidArray.h" +#include "nsIInterfaceInfo.h" +#include "nsCOMPtr.h" +#include "nsWeakReference.h" +#include "nsJavaXPTCStubWeakRef.h" + + +#define NS_JAVAXPTCSTUB_IID \ +{0x88dd8130, 0xebe6, 0x4431, {0x9d, 0xa7, 0xe6, 0xb7, 0x54, 0x74, 0xfb, 0x21}} + +class nsJavaXPTCStub : protected nsAutoXPTCStub, + public nsSupportsWeakReference +{ + friend class nsJavaXPTCStubWeakRef; + +public: + NS_DECL_ISUPPORTS + NS_DECL_NSISUPPORTSWEAKREFERENCE + NS_DECLARE_STATIC_IID_ACCESSOR(NS_JAVAXPTCSTUB_IID) + + nsJavaXPTCStub(jobject aJavaObject, nsIInterfaceInfo *aIInfo, + nsresult *rv); + + virtual ~nsJavaXPTCStub(); + + // call this method and return result + NS_IMETHOD CallMethod(PRUint16 aMethodIndex, + const XPTMethodDescriptor *aInfo, + nsXPTCMiniVariant *aParams); + + nsISomeInterface* GetStub() { return mXPTCStub; } + + // getter for mJavaObject + jobject GetJavaObject(); + + // Deletes the strong global ref for the Java object, so it can be garbage + // collected if necessary. See DestroyXPTCMappingEnum(). + void DeleteStrongRef(); + + /** + * Finds the associated nsJavaXPTCStub for the given Java object and IID. + * If no such stub exists, then a new one is created. + * + * @param env Java environment pointer + * @param aJavaObject Java object for which to find/create nsJavaXPTCStub + * @param aIID desired interface IID for nsJavaXPTCStub + * @param aResult on success, holds AddRef'd reference to nsJavaXPTCStub + * + * @return NS_OK if succeeded; all other return values are error codes. + */ + static nsresult GetNewOrUsed(JNIEnv* env, jobject aJavaObject, + const nsIID& aIID, void** aResult); + + +private: + NS_IMETHOD_(nsrefcnt) AddRefInternal(); + NS_IMETHOD_(nsrefcnt) ReleaseInternal(); + + // Deletes this object and its members. Called by ReleaseInternal() and + // ReleaseWeakRef(). + void Destroy(); + + // When a nsJavaXPTCStubWeakRef associated with this object is released, it + // calls this function to let this object know that there is one less weak + // ref. If there are no more weakrefs referencing this object, and no one + // holds a strong ref, then this function takes care of deleting the object. + void ReleaseWeakRef(); + + // returns a weak reference to a child supporting the specified interface + nsJavaXPTCStub * FindStubSupportingIID(const nsID &aIID); + + // returns true if this stub supports the specified interface + PRBool SupportsIID(const nsID &aIID); + + nsresult SetupJavaParams(const nsXPTParamInfo &aParamInfo, + const XPTMethodDescriptor* aMethodInfo, + PRUint16 aMethodIndex, + nsXPTCMiniVariant* aDispatchParams, + nsXPTCMiniVariant &aVariant, + jvalue &aJValue, nsACString &aMethodSig); + nsresult GetRetvalSig(const nsXPTParamInfo* aParamInfo, + const XPTMethodDescriptor* aMethodInfo, + PRUint16 aMethodIndex, + nsXPTCMiniVariant* aDispatchParams, + nsACString &aRetvalSig); + nsresult FinalizeJavaParams(const nsXPTParamInfo &aParamInfo, + const XPTMethodDescriptor* aMethodInfo, + PRUint16 aMethodIndex, + nsXPTCMiniVariant* aDispatchParams, + nsXPTCMiniVariant &aVariant, + jvalue &aJValue); + nsresult SetXPCOMRetval(); + + jobject mJavaWeakRef; + jobject mJavaStrongRef; + jint mJavaRefHashCode; + nsCOMPtr<nsIInterfaceInfo> mIInfo; + + nsVoidArray mChildren; // weak references (cleared by the children) + nsJavaXPTCStub *mMaster; // strong reference + + nsAutoRefCnt mWeakRefCnt; // count for number of associated weak refs +}; + +#ifdef VBOX +NS_DEFINE_STATIC_IID_ACCESSOR2(nsJavaXPTCStub, NS_JAVAXPTCSTUB_IID) +#else +NS_DEFINE_STATIC_IID_ACCESSOR2(nsJavaXPTCStub, NS_JAVAXPTCSTUB_IID) +#endif + +#endif // _nsJavaXPTCStub_h_ |