diff options
Diffstat (limited to 'libs/utils/Binder.cpp')
| -rw-r--r-- | libs/utils/Binder.cpp | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/libs/utils/Binder.cpp b/libs/utils/Binder.cpp deleted file mode 100644 index 37e4685..0000000 --- a/libs/utils/Binder.cpp +++ /dev/null @@ -1,242 +0,0 @@ -/* - * Copyright (C) 2005 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <utils/Binder.h> - -#include <utils/Atomic.h> -#include <utils/BpBinder.h> -#include <utils/IInterface.h> -#include <utils/Parcel.h> - -#include <stdio.h> - -namespace android { - -// --------------------------------------------------------------------------- - -sp<IInterface> IBinder::queryLocalInterface(const String16& descriptor) -{ - return NULL; -} - -BBinder* IBinder::localBinder() -{ - return NULL; -} - -BpBinder* IBinder::remoteBinder() -{ - return NULL; -} - -bool IBinder::checkSubclass(const void* /*subclassID*/) const -{ - return false; -} - -// --------------------------------------------------------------------------- - -class BBinder::Extras -{ -public: - Mutex mLock; - BpBinder::ObjectManager mObjects; -}; - -// --------------------------------------------------------------------------- - -BBinder::BBinder() - : mExtras(NULL) -{ -} - -bool BBinder::isBinderAlive() const -{ - return true; -} - -status_t BBinder::pingBinder() -{ - return NO_ERROR; -} - -String16 BBinder::getInterfaceDescriptor() const -{ - LOGW("reached BBinder::getInterfaceDescriptor (this=%p)", this); - return String16(); -} - -status_t BBinder::transact( - uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) -{ - data.setDataPosition(0); - - status_t err = NO_ERROR; - switch (code) { - case PING_TRANSACTION: - reply->writeInt32(pingBinder()); - break; - default: - err = onTransact(code, data, reply, flags); - break; - } - - if (reply != NULL) { - reply->setDataPosition(0); - } - - return err; -} - -status_t BBinder::linkToDeath( - const sp<DeathRecipient>& recipient, void* cookie, uint32_t flags) -{ - return INVALID_OPERATION; -} - -status_t BBinder::unlinkToDeath( - const wp<DeathRecipient>& recipient, void* cookie, uint32_t flags, - wp<DeathRecipient>* outRecipient) -{ - return INVALID_OPERATION; -} - -status_t BBinder::dump(int fd, const Vector<String16>& args) -{ - return NO_ERROR; -} - -void BBinder::attachObject( - const void* objectID, void* object, void* cleanupCookie, - object_cleanup_func func) -{ - Extras* e = mExtras; - - if (!e) { - e = new Extras; - if (android_atomic_cmpxchg(0, reinterpret_cast<int32_t>(e), - reinterpret_cast<volatile int32_t*>(&mExtras)) != 0) { - delete e; - e = mExtras; - } - if (e == 0) return; // out of memory - } - - AutoMutex _l(e->mLock); - e->mObjects.attach(objectID, object, cleanupCookie, func); -} - -void* BBinder::findObject(const void* objectID) const -{ - Extras* e = mExtras; - if (!e) return NULL; - - AutoMutex _l(e->mLock); - return e->mObjects.find(objectID); -} - -void BBinder::detachObject(const void* objectID) -{ - Extras* e = mExtras; - if (!e) return; - - AutoMutex _l(e->mLock); - e->mObjects.detach(objectID); -} - -BBinder* BBinder::localBinder() -{ - return this; -} - -BBinder::~BBinder() -{ - if (mExtras) delete mExtras; -} - - -status_t BBinder::onTransact( - uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) -{ - switch (code) { - case INTERFACE_TRANSACTION: - reply->writeString16(getInterfaceDescriptor()); - return NO_ERROR; - - case DUMP_TRANSACTION: { - int fd = data.readFileDescriptor(); - int argc = data.readInt32(); - Vector<String16> args; - for (int i = 0; i < argc && data.dataAvail() > 0; i++) { - args.add(data.readString16()); - } - return dump(fd, args); - } - default: - return UNKNOWN_TRANSACTION; - } -} - -// --------------------------------------------------------------------------- - -enum { - // This is used to transfer ownership of the remote binder from - // the BpRefBase object holding it (when it is constructed), to the - // owner of the BpRefBase object when it first acquires that BpRefBase. - kRemoteAcquired = 0x00000001 -}; - -BpRefBase::BpRefBase(const sp<IBinder>& o) - : mRemote(o.get()), mRefs(NULL), mState(0) -{ - extendObjectLifetime(OBJECT_LIFETIME_WEAK); - - if (mRemote) { - mRemote->incStrong(this); // Removed on first IncStrong(). - mRefs = mRemote->createWeak(this); // Held for our entire lifetime. - } -} - -BpRefBase::~BpRefBase() -{ - if (mRemote) { - if (!(mState&kRemoteAcquired)) { - mRemote->decStrong(this); - } - mRefs->decWeak(this); - } -} - -void BpRefBase::onFirstRef() -{ - android_atomic_or(kRemoteAcquired, &mState); -} - -void BpRefBase::onLastStrongRef(const void* id) -{ - if (mRemote) { - mRemote->decStrong(this); - } -} - -bool BpRefBase::onIncStrongAttempted(uint32_t flags, const void* id) -{ - return mRemote ? mRefs->attemptIncStrong(this) : false; -} - -// --------------------------------------------------------------------------- - -}; // namespace android |