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 // Global variables 31 extern int mArgC; 32 extern const char* const* mArgV; 33 extern int mArgLen; 34 35 class IPCThreadState; 36 37 class ProcessState : public virtual RefBase 38 { 39 public: 40 static sp<ProcessState> self(); 41 42 static void setSingleProcess(bool singleProcess); 43 44 void setContextObject(const sp<IBinder>& object); 45 sp<IBinder> getContextObject(const sp<IBinder>& caller); 46 47 void setContextObject(const sp<IBinder>& object, 48 const String16& name); 49 sp<IBinder> getContextObject(const String16& name, 50 const sp<IBinder>& caller); 51 52 bool supportsProcesses() const; 53 54 void startThreadPool(); 55 56 typedef bool (*context_check_func)(const String16& name, 57 const sp<IBinder>& caller, 58 void* userData); 59 60 bool isContextManager(void) const; 61 bool becomeContextManager( 62 context_check_func checkFunc, 63 void* userData); 64 65 sp<IBinder> getStrongProxyForHandle(int32_t handle); 66 wp<IBinder> getWeakProxyForHandle(int32_t handle); 67 void expungeHandle(int32_t handle, IBinder* binder); 68 69 void setArgs(int argc, const char* const argv[]); 70 int getArgC() const; 71 const char* const* getArgV() const; 72 73 void setArgV0(const char* txt); 74 75 void spawnPooledThread(bool isMain); 76 77 private: 78 friend class IPCThreadState; 79 80 ProcessState(); 81 ~ProcessState(); 82 83 ProcessState(const ProcessState& o); 84 ProcessState& operator=(const ProcessState& o); 85 86 struct handle_entry { 87 IBinder* binder; 88 RefBase::weakref_type* refs; 89 }; 90 91 handle_entry* lookupHandleLocked(int32_t handle); 92 93 int mDriverFD; 94 void* mVMStart; 95 96 mutable Mutex mLock; // protects everything below. 97 98 Vector<handle_entry>mHandleToObject; 99 100 bool mManagesContexts; 101 context_check_func mBinderContextCheckFunc; 102 void* mBinderContextUserData; 103 104 KeyedVector<String16, sp<IBinder> > 105 mContexts; 106 107 108 String8 mRootDir; 109 bool mThreadPoolStarted; 110 volatile int32_t mThreadPoolSeq; 111 }; 112 113 }; // namespace android 114 115 // --------------------------------------------------------------------------- 116 117 #endif // ANDROID_PROCESS_STATE_H 118