You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
140 lines
5.8 KiB
140 lines
5.8 KiB
/* |
|
* 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. |
|
*/ |
|
|
|
#ifndef ANDROID_HARDWARE_IPC_THREAD_STATE_H |
|
#define ANDROID_HARDWARE_IPC_THREAD_STATE_H |
|
|
|
#include <utils/Errors.h> |
|
#include <hwbinder/Parcel.h> |
|
#include <hwbinder/ProcessState.h> |
|
#include <utils/Vector.h> |
|
|
|
#if defined(_WIN32) |
|
typedef int uid_t; |
|
#endif |
|
|
|
// --------------------------------------------------------------------------- |
|
namespace android { |
|
namespace hardware { |
|
|
|
class IPCThreadState |
|
{ |
|
public: |
|
static IPCThreadState* self(); |
|
static IPCThreadState* selfOrNull(); // self(), but won't instantiate |
|
|
|
sp<ProcessState> process(); |
|
|
|
status_t clearLastError(); |
|
|
|
pid_t getCallingPid() const; |
|
uid_t getCallingUid() const; |
|
|
|
void setStrictModePolicy(int32_t policy); |
|
int32_t getStrictModePolicy() const; |
|
|
|
void setLastTransactionBinderFlags(int32_t flags); |
|
int32_t getLastTransactionBinderFlags() const; |
|
|
|
int64_t clearCallingIdentity(); |
|
void restoreCallingIdentity(int64_t token); |
|
|
|
int setupPolling(int* fd); |
|
status_t handlePolledCommands(); |
|
void flushCommands(); |
|
|
|
void joinThreadPool(bool isMain = true); |
|
|
|
// Stop the local process. |
|
void stopProcess(bool immediate = true); |
|
|
|
status_t transact(int32_t handle, |
|
uint32_t code, const Parcel& data, |
|
Parcel* reply, uint32_t flags); |
|
|
|
void incStrongHandle(int32_t handle); |
|
void decStrongHandle(int32_t handle); |
|
void incWeakHandle(int32_t handle); |
|
void decWeakHandle(int32_t handle); |
|
status_t attemptIncStrongHandle(int32_t handle); |
|
static void expungeHandle(int32_t handle, IBinder* binder); |
|
status_t requestDeathNotification( int32_t handle, |
|
BpHwBinder* proxy); |
|
status_t clearDeathNotification( int32_t handle, |
|
BpHwBinder* proxy); |
|
|
|
static void shutdown(); |
|
|
|
// Call this to disable switching threads to background scheduling when |
|
// receiving incoming IPC calls. This is specifically here for the |
|
// Android system process, since it expects to have background apps calling |
|
// in to it but doesn't want to acquire locks in its services while in |
|
// the background. |
|
static void disableBackgroundScheduling(bool disable); |
|
|
|
// Call blocks until the number of executing binder threads is less than |
|
// the maximum number of binder threads threads allowed for this process. |
|
void blockUntilThreadAvailable(); |
|
|
|
// Service manager registration |
|
void setTheContextObject(sp<BHwBinder> obj); |
|
private: |
|
IPCThreadState(); |
|
~IPCThreadState(); |
|
|
|
status_t sendReply(const Parcel& reply, uint32_t flags); |
|
status_t waitForResponse(Parcel *reply, |
|
status_t *acquireResult=NULL); |
|
status_t talkWithDriver(bool doReceive=true); |
|
status_t writeTransactionData(int32_t cmd, |
|
uint32_t binderFlags, |
|
int32_t handle, |
|
uint32_t code, |
|
const Parcel& data, |
|
status_t* statusBuffer); |
|
status_t getAndExecuteCommand(); |
|
status_t executeCommand(int32_t command); |
|
void processPendingDerefs(); |
|
|
|
void clearCaller(); |
|
|
|
static void threadDestructor(void *st); |
|
static void freeBuffer(Parcel* parcel, |
|
const uint8_t* data, size_t dataSize, |
|
const binder_size_t* objects, size_t objectsSize, |
|
void* cookie); |
|
|
|
const sp<ProcessState> mProcess; |
|
const pid_t mMyThreadId; |
|
Vector<BHwBinder*> mPendingStrongDerefs; |
|
Vector<RefBase::weakref_type*> mPendingWeakDerefs; |
|
|
|
Parcel mIn; |
|
Parcel mOut; |
|
status_t mLastError; |
|
pid_t mCallingPid; |
|
uid_t mCallingUid; |
|
int32_t mStrictModePolicy; |
|
int32_t mLastTransactionBinderFlags; |
|
sp<BHwBinder> mContextObject; |
|
}; |
|
|
|
}; // namespace hardware |
|
}; // namespace android |
|
|
|
// --------------------------------------------------------------------------- |
|
|
|
#endif // ANDROID_HARDWARE_IPC_THREAD_STATE_H
|
|
|