1 /* 2 * Copyright (C) 2005 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_PROCESS_STATE_H 18 #define ANDROID_PROCESS_STATE_H 19 20 #include <binder/IBinder.h> 21 #include <utils/KeyedVector.h> 22 #include <utils/String8.h> 23 #include <utils/String16.h> 24 25 #include <utils/threads.h> 26 27 // --------------------------------------------------------------------------- 28 namespace android { 29 30 class IPCThreadState; 31 32 class ProcessState : public virtual RefBase 33 { 34 public: 35 static sp<ProcessState> self(); 36 37 void setContextObject(const sp<IBinder>& object); 38 sp<IBinder> getContextObject(const sp<IBinder>& caller); 39 40 void setContextObject(const sp<IBinder>& object, 41 const String16& name); 42 sp<IBinder> getContextObject(const String16& name, 43 const sp<IBinder>& caller); 44 45 void startThreadPool(); 46 47 typedef bool (*context_check_func)(const String16& name, 48 const sp<IBinder>& caller, 49 void* userData); 50 51 bool isContextManager(void) const; 52 bool becomeContextManager( 53 context_check_func checkFunc, 54 void* userData); 55 56 sp<IBinder> getStrongProxyForHandle(int32_t handle); 57 wp<IBinder> getWeakProxyForHandle(int32_t handle); 58 void expungeHandle(int32_t handle, IBinder* binder); 59 60 void spawnPooledThread(bool isMain); 61 62 status_t setThreadPoolMaxThreadCount(size_t maxThreads); 63 void giveThreadPoolName(); 64 65 private: 66 friend class IPCThreadState; 67 68 ProcessState(); 69 ~ProcessState(); 70 71 ProcessState(const ProcessState& o); 72 ProcessState& operator=(const ProcessState& o); 73 String8 makeBinderThreadName(); 74 75 struct handle_entry { 76 IBinder* binder; 77 RefBase::weakref_type* refs; 78 }; 79 80 handle_entry* lookupHandleLocked(int32_t handle); 81 82 int mDriverFD; 83 void* mVMStart; 84 85 mutable Mutex mLock; // protects everything below. 86 87 Vector<handle_entry>mHandleToObject; 88 89 bool mManagesContexts; 90 context_check_func mBinderContextCheckFunc; 91 void* mBinderContextUserData; 92 93 KeyedVector<String16, sp<IBinder> > 94 mContexts; 95 96 97 String8 mRootDir; 98 bool mThreadPoolStarted; 99 volatile int32_t mThreadPoolSeq; 100 }; 101 102 }; // namespace android 103 104 // --------------------------------------------------------------------------- 105 106 #endif // ANDROID_PROCESS_STATE_H 107