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/*
* Copyright (C) 2008 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.
*/
#pragma once
#include <atomic>
#include <stdint.h>
#include <binder/Common.h>
#include <binder/IBinder.h>
// ---------------------------------------------------------------------------
namespace android {
namespace internal {
class Stability;
}
class BBinder : public IBinder {
public:
LIBBINDER_EXPORTED BBinder();
LIBBINDER_EXPORTED virtual const String16& getInterfaceDescriptor() const;
LIBBINDER_EXPORTED virtual bool isBinderAlive() const;
LIBBINDER_EXPORTED virtual status_t pingBinder();
LIBBINDER_EXPORTED virtual status_t dump(int fd, const Vector<String16>& args);
// NOLINTNEXTLINE(google-default-arguments)
LIBBINDER_EXPORTED virtual status_t transact(uint32_t code, const Parcel& data, Parcel* reply,
uint32_t flags = 0) final;
// NOLINTNEXTLINE(google-default-arguments)
LIBBINDER_EXPORTED virtual status_t linkToDeath(const sp<DeathRecipient>& recipient,
void* cookie = nullptr, uint32_t flags = 0);
// NOLINTNEXTLINE(google-default-arguments)
LIBBINDER_EXPORTED virtual status_t unlinkToDeath(const wp<DeathRecipient>& recipient,
void* cookie = nullptr, uint32_t flags = 0,
wp<DeathRecipient>* outRecipient = nullptr);
LIBBINDER_EXPORTED virtual void* attachObject(const void* objectID, void* object,
void* cleanupCookie,
object_cleanup_func func) final;
LIBBINDER_EXPORTED virtual void* findObject(const void* objectID) const final;
LIBBINDER_EXPORTED virtual void* detachObject(const void* objectID) final;
LIBBINDER_EXPORTED void withLock(const std::function<void()>& doWithLock);
LIBBINDER_EXPORTED sp<IBinder> lookupOrCreateWeak(const void* objectID,
IBinder::object_make_func make,
const void* makeArgs);
LIBBINDER_EXPORTED virtual BBinder* localBinder();
LIBBINDER_EXPORTED bool isRequestingSid();
// This must be called before the object is sent to another process. Not thread safe.
LIBBINDER_EXPORTED void setRequestingSid(bool requestSid);
LIBBINDER_EXPORTED sp<IBinder> getExtension();
// This must be called before the object is sent to another process. Not thread safe.
LIBBINDER_EXPORTED void setExtension(const sp<IBinder>& extension);
// This must be called before the object is sent to another process. Not thread safe.
//
// This function will abort if improper parameters are set. This is like
// sched_setscheduler. However, it sets the minimum scheduling policy
// only for the duration that this specific binder object is handling the
// call in a threadpool. By default, this API is set to SCHED_NORMAL/0. In
// this case, the scheduling priority will not actually be modified from
// binder defaults. See also IPCThreadState::disableBackgroundScheduling.
//
// Appropriate values are:
// SCHED_NORMAL: -20 <= priority <= 19
// SCHED_RR/SCHED_FIFO: 1 <= priority <= 99
LIBBINDER_EXPORTED void setMinSchedulerPolicy(int policy, int priority);
LIBBINDER_EXPORTED int getMinSchedulerPolicy();
LIBBINDER_EXPORTED int getMinSchedulerPriority();
// Whether realtime scheduling policies are inherited.
LIBBINDER_EXPORTED bool isInheritRt();
// This must be called before the object is sent to another process. Not thread safe.
LIBBINDER_EXPORTED void setInheritRt(bool inheritRt);
LIBBINDER_EXPORTED pid_t getDebugPid();
// Whether this binder has been sent to another process.
LIBBINDER_EXPORTED bool wasParceled();
// Consider this binder as parceled (setup/init-related calls should no
// longer by called. This is automatically set by when this binder is sent
// to another process.
LIBBINDER_EXPORTED void setParceled();
[[nodiscard]] LIBBINDER_EXPORTED status_t setRpcClientDebug(binder::unique_fd clientFd,
const sp<IBinder>& keepAliveBinder);
protected:
LIBBINDER_EXPORTED virtual ~BBinder();
// NOLINTNEXTLINE(google-default-arguments)
LIBBINDER_EXPORTED virtual status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply,
uint32_t flags = 0);
private:
BBinder(const BBinder& o);
BBinder& operator=(const BBinder& o);
class RpcServerLink;
class Extras;
Extras* getOrCreateExtras();
[[nodiscard]] status_t setRpcClientDebug(const Parcel& data);
void removeRpcServerLink(const sp<RpcServerLink>& link);
[[nodiscard]] status_t startRecordingTransactions(const Parcel& data);
[[nodiscard]] status_t stopRecordingTransactions();
std::atomic<Extras*> mExtras;
friend ::android::internal::Stability;
int16_t mStability;
bool mParceled;
bool mRecordingOn;
#ifdef __LP64__
int32_t mReserved1;
#endif
};
// ---------------------------------------------------------------------------
class BpRefBase : public virtual RefBase {
protected:
LIBBINDER_EXPORTED explicit BpRefBase(const sp<IBinder>& o);
LIBBINDER_EXPORTED virtual ~BpRefBase();
LIBBINDER_EXPORTED virtual void onFirstRef();
LIBBINDER_EXPORTED virtual void onLastStrongRef(const void* id);
LIBBINDER_EXPORTED virtual bool onIncStrongAttempted(uint32_t flags, const void* id);
LIBBINDER_EXPORTED inline IBinder* remote() const { return mRemote; }
LIBBINDER_EXPORTED inline sp<IBinder> remoteStrong() const {
return sp<IBinder>::fromExisting(mRemote);
}
private:
BpRefBase(const BpRefBase& o);
BpRefBase& operator=(const BpRefBase& o);
IBinder* const mRemote;
RefBase::weakref_type* mRefs;
std::atomic<int32_t> mState;
};
} // namespace android
// ---------------------------------------------------------------------------
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