thread.h revision 899e789bd4741c0172268f7838ce8ab220a5f916
18d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes/* 28d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 38d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 48d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 58d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * you may not use this file except in compliance with the License. 68d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * You may obtain a copy of the License at 78d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 88d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 98d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * 108d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * Unless required by applicable law or agreed to in writing, software 118d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 128d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * See the License for the specific language governing permissions and 148d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes * limitations under the License. 158d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes */ 160e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 170e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#ifndef ART_SRC_THREAD_H_ 180e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#define ART_SRC_THREAD_H_ 190e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 20b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <pthread.h> 21a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 2202b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes#include <bitset> 23a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iosfwd> 24b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <list> 258daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include <string> 26e343b76af81a005ef64f5e75a555389fd9147dabjeffhao#include <vector> 27b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 281f87008b165d26541d832ff805250afdc89c253dBrian Carlstrom#include "dex_file.h" 29578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "globals.h" 3069f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes#include "jni_internal.h" 31578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "logging.h" 32578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "macros.h" 338daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes#include "mutex.h" 34b765be0d656c3073402693aeaf64e95a0e49f218Brian Carlstrom#include "mem_map.h" 35578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "offsets.h" 369d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes#include "runtime_stats.h" 3768e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes#include "stack.h" 38e343b76af81a005ef64f5e75a555389fd9147dabjeffhao#include "trace.h" 39bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers#include "UniquePtr.h" 40b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 410e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapironamespace art { 420e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 4369f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughesclass Array; 4437f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughesclass Class; 451f87008b165d26541d832ff805250afdc89c253dBrian Carlstromclass ClassLinker; 46edcc09c737b00462881f147602656739d029571eElliott Hughesclass ClassLoader; 47bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogersclass Context; 48475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughesclass DebugInvokeReq; 49a40f9bc48afe3a9d38be2fa298fece13ed82ba28Brian Carlstromclass Method; 508daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughesclass Monitor; 510e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiroclass Object; 52b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiroclass Runtime; 5368e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughesclass StackIndirectReferenceTable; 5455df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liaoclass StackTraceElement; 551da522de18ac6e4c2913c3233529e9dd115059f8buzbeeclass StaticStorageBase; 5640381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstromclass Thread; 5740381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstromclass ThreadList; 5840381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstromclass Throwable; 591da522de18ac6e4c2913c3233529e9dd115059f8buzbee 6055df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liaotemplate<class T> class ObjectArray; 614417536522fd2a9d8215d8672331984769c9520bShih-wei Liaotemplate<class T> class PrimitiveArray; 624417536522fd2a9d8215d8672331984769c9520bShih-wei Liaotypedef PrimitiveArray<int32_t> IntArray; 630e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 6485d1545e985ac689db4bad7849880e843707c862Elliott Hughesclass PACKED Thread { 650e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro public: 668daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes /* thread priorities, from java.lang.Thread */ 678daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes enum Priority { 688daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes kMinPriority = 1, 698daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes kNormPriority = 5, 708daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes kMaxPriority = 10, 718daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes }; 72b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro enum State { 73499c5133d361e7c659fc38e5ccfeb1280a7996f5Elliott Hughes // These correspond to JDWP states (but needn't share the same values). 74499c5133d361e7c659fc38e5ccfeb1280a7996f5Elliott Hughes kTerminated = 0, // TS_ZOMBIE 75499c5133d361e7c659fc38e5ccfeb1280a7996f5Elliott Hughes kRunnable = 1, // TS_RUNNING 76499c5133d361e7c659fc38e5ccfeb1280a7996f5Elliott Hughes kTimedWaiting = 2, // TS_SLEEPING in Object.wait() 77499c5133d361e7c659fc38e5ccfeb1280a7996f5Elliott Hughes kBlocked = 3, // TS_MONITOR on a monitor 78499c5133d361e7c659fc38e5ccfeb1280a7996f5Elliott Hughes kWaiting = 4, // TS_WAIT in Object.wait() 7993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes // Non-JDWP states. 8093e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes kInitializing = 5, // allocated, not yet running --- TODO: unnecessary? 8193e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes kStarting = 6, // native thread started, not yet ready to run managed code 8293e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes kNative = 7, // off in a JNI native method 8393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes kVmWait = 8, // waiting on a VM resource 8493e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes kSuspended = 9, // suspended, usually by GC or debugger 85b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro }; 86b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 87932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Space to throw a StackOverflowError in. 88aded5f7ab991f3c1132851599d3bc60ff6707eedBrian Carlstrom static const size_t kStackOverflowReservedBytes = 4 * KB; 89c143c55718342519db5398e41dda31422cf16c79buzbee 9072db0d77d6c476c71c5bbaa14a80ca77f23a47f3Brian Carlstrom static const size_t kDefaultStackSize = 96 * KB; 9161e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 92c143c55718342519db5398e41dda31422cf16c79buzbee // Runtime support function pointers 934a3164faefd255b1c1e911e7ad7c3d57749caaf6buzbee void (*pDebugMe)(Method*, uint32_t); 94c143c55718342519db5398e41dda31422cf16c79buzbee void* (*pMemcpy)(void*, const void*, size_t); 955433072f589b61413e042eddf76e8190a048f71dbuzbee uint64_t (*pShlLong)(uint64_t, uint32_t); 965433072f589b61413e042eddf76e8190a048f71dbuzbee uint64_t (*pShrLong)(uint64_t, uint32_t); 975433072f589b61413e042eddf76e8190a048f71dbuzbee uint64_t (*pUshrLong)(uint64_t, uint32_t); 98c143c55718342519db5398e41dda31422cf16c79buzbee float (*pI2f)(int); 99c143c55718342519db5398e41dda31422cf16c79buzbee int (*pF2iz)(float); 100c143c55718342519db5398e41dda31422cf16c79buzbee float (*pD2f)(double); 101c143c55718342519db5398e41dda31422cf16c79buzbee double (*pF2d)(float); 102c143c55718342519db5398e41dda31422cf16c79buzbee double (*pI2d)(int); 103c143c55718342519db5398e41dda31422cf16c79buzbee int (*pD2iz)(double); 104c143c55718342519db5398e41dda31422cf16c79buzbee float (*pL2f)(long); 105c143c55718342519db5398e41dda31422cf16c79buzbee double (*pL2d)(long); 1061b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee long long (*pF2l)(float); 1071b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee long long (*pD2l)(double); 108c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFadd)(float, float); 109c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFsub)(float, float); 110c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFdiv)(float, float); 111c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFmul)(float, float); 112c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFmodf)(float, float); 113c143c55718342519db5398e41dda31422cf16c79buzbee double (*pDadd)(double, double); 114c143c55718342519db5398e41dda31422cf16c79buzbee double (*pDsub)(double, double); 115c143c55718342519db5398e41dda31422cf16c79buzbee double (*pDdiv)(double, double); 116c143c55718342519db5398e41dda31422cf16c79buzbee double (*pDmul)(double, double); 117c143c55718342519db5398e41dda31422cf16c79buzbee double (*pFmod)(double, double); 118c143c55718342519db5398e41dda31422cf16c79buzbee int (*pIdivmod)(int, int); 119c143c55718342519db5398e41dda31422cf16c79buzbee int (*pIdiv)(int, int); 120439c4fa0db980fb19e4a585723a64a3461e4c278buzbee long long (*pLmul)(long long, long long); 121c143c55718342519db5398e41dda31422cf16c79buzbee long long (*pLdivmod)(long long, long long); 1224a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers void (*pCheckSuspendFromCode)(Thread*); // Stub that is called when the suspend count is non-zero 1234a510d8750d50b77353d0a5a891d1b9b3a48ecd5Ian Rogers void (*pTestSuspendFromCode)(); // Stub that is periodically called to test the suspend count 12421d9e8323124a832a21679ca83808bc9c68ed365Ian Rogers void* (*pAllocObjectFromCode)(uint32_t, void*); 12528ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers void* (*pAllocObjectFromCodeWithAccessCheck)(uint32_t, void*); 126b408de744566a5c5a80be1ba7f5c88407e816945Elliott Hughes void* (*pAllocArrayFromCode)(uint32_t, void*, int32_t); 127e51a511ccee3f3c0120807321bcc160fcaa664beIan Rogers void (*pCanPutArrayElementFromCode)(void*, void*); 128ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers void* (*pCheckAndAllocArrayFromCode)(uint32_t, void*, int32_t); 129362f9bc807169bcfc8761dde067bbfb79b5ad0fdElliott Hughes void (*pCheckCastFromCode)(void*, void*); 130ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers Object* (*pDecodeJObjectInThread)(Thread* thread, jobject obj); 13167375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers void (*pDeliverException)(void*); 132ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers void* (*pFindInstanceFieldFromCode)(uint32_t, void*); 133ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers Method* (*pFindInterfaceMethodInCache)(Class*, uint32_t, const Method*, struct DvmDex*); 134ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers void* (*pFindNativeMethod)(Thread* thread); 135ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers int32_t (*pGet32Static)(uint32_t, void*); 136ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers int64_t (*pGet64Static)(uint32_t, void*); 137ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers void* (*pGetObjStatic)(uint32_t, void*); 138ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers void (*pHandleFillArrayDataFromCode)(void*, void*); 139ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers void* (*pInitializeStaticStorage)(uint32_t, void*); 140362f9bc807169bcfc8761dde067bbfb79b5ad0fdElliott Hughes uint32_t (*pInstanceofNonTrivialFromCode)(const Class*, const Class*); 141ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers void (*pInvokeInterfaceTrampoline)(uint32_t, void*); 14228ad40dc3ec2f09b0ffd4f6d6787bf1b532ccd5dIan Rogers void* (*pInitializeTypeFromCode)(uint32_t, void*); 143b093c6b27f8ea9bbe2d49c03ebe345203a121199Ian Rogers void* (*pInitializeTypeAndVerifyAccessFromCode)(uint32_t, void*); 144ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers void (*pLockObjectFromCode)(void*); 1456fd03fb67e4628689f0abf34edeacc0e35b6295eBrian Carlstrom void (*pObjectInit)(void*); 14648d7222d2f543752ffb17db05e0b9e891061135cbuzbee void* (*pResolveMethodFromCode)(void*, uint32_t, bool); 147aded5f7ab991f3c1132851599d3bc60ff6707eedBrian Carlstrom void* (*pResolveStringFromCode)(void*, uint32_t); 148ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers int (*pSet32Static)(uint32_t, void*, int32_t); 149ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers int (*pSet64Static)(uint32_t, void*, int64_t); 150ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers int (*pSetObjStatic)(uint32_t, void*, void*); 151932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers void (*pThrowStackOverflowFromCode)(void*); 1525ade1d255ef1b5022321ac20493208703b34d2b1buzbee void (*pThrowNullPointerFromCode)(); 1535ade1d255ef1b5022321ac20493208703b34d2b1buzbee void (*pThrowArrayBoundsFromCode)(int32_t, int32_t); 1545ade1d255ef1b5022321ac20493208703b34d2b1buzbee void (*pThrowDivZeroFromCode)(); 1555ade1d255ef1b5022321ac20493208703b34d2b1buzbee void (*pThrowVerificationErrorFromCode)(int32_t, int32_t); 1565ade1d255ef1b5022321ac20493208703b34d2b1buzbee void (*pThrowNegArraySizeFromCode)(int32_t); 1575ade1d255ef1b5022321ac20493208703b34d2b1buzbee void (*pThrowNoSuchMethodFromCode)(int32_t); 158ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers void (*pThrowAbstractMethodErrorFromCode)(Method* method, Thread* thread, Method** sp); 159ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers void (*pUnlockObjectFromCode)(void*); 1606a4be3a6226cec645cf905dd352e44f7968a7fa4Brian Carlstrom void* (*pUnresolvedDirectMethodTrampolineFromCode)(int32_t, Method**, Thread*, 161ce9eca6de042f26e9eebc41c9bee8b4d14f753aaIan Rogers Runtime::TrampolineType); 162c143c55718342519db5398e41dda31422cf16c79buzbee 1639b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao class StackVisitor { 1649b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 1650cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers virtual ~StackVisitor() {} 166bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers virtual void VisitFrame(const Frame& frame, uintptr_t pc) = 0; 1679b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao }; 1689b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 16961e019d291583029c01b61b93bea750f2b663c37Carl Shapiro // Creates a new thread. 170d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes static void Create(Object* peer, size_t stack_size); 17161e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 17261e019d291583029c01b61b93bea750f2b663c37Carl Shapiro // Creates a new thread from the calling thread. 173dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes static Thread* Attach(const Runtime* runtime, const char* name, bool as_daemon); 174b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 175caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom // Reset internal state of child thread after fork. 176caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom void InitAfterFork(); 177caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom 178b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro static Thread* Current() { 179d0e7e777c412071a911dd2c008b20b7d879fd392Carl Shapiro void* thread = pthread_getspecific(Thread::pthread_key_self_); 180d0e7e777c412071a911dd2c008b20b7d879fd392Carl Shapiro return reinterpret_cast<Thread*>(thread); 1810e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 1820e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 183761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes static Thread* FromManagedThread(Object* thread_peer); 18401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes static Thread* FromManagedThread(JNIEnv* env, jobject thread); 1858e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes static uint32_t LockOwnerFromThreadLock(Object* thread_lock); 1868daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 187899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes // When full == true, dumps the detailed thread state and the thread stack (used for SIGQUIT). 188899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes // When full == false, dumps a one-line summary of thread state (used for operator<<). 189899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes void Dump(std::ostream& os, bool full = true) const; 190a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 1910cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers State GetState() const { 1920cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers return state_; 1930cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 1940cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 1958d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes State SetState(State new_state); 1968d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes 197038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes bool IsDaemon(); 198761928d24e4e7ed7776b52243eaf9095ad35f448Elliott Hughes bool IsSuspended(); 199038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes 2008d768a954b101a9532f980253ac46be2c53aba11Elliott Hughes void WaitUntilSuspended(); 2010cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 2025f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes bool HoldsLock(Object*); 2035f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 2048daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes /* 2058daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Changes the priority of this thread to match that of the java.lang.Thread object. 2068daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * 2078daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * We map a priority value from 1-10 to Linux "nice" values, where lower 2088daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * numbers indicate higher priority. 2098daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes */ 2108daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes void SetNativePriority(int newPriority); 2118daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 2128daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes /* 2138daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Returns the thread priority for the current thread by querying the system. 2148daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * This is useful when attaching a thread through JNI. 2158daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * 2168daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes * Returns a value from 1 to 10 (compatible with java.lang.Thread values). 2178daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes */ 2188daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes static int GetNativePriority(); 2198daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 2200cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers bool CanAccessDirectReferences() const { 221caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom#ifdef MOVING_GARBAGE_COLLECTOR 222a59d1793b89d0fd62c7544c94da4b6e5dac95ad5Elliott Hughes // TODO: when we have a moving collector, we'll need: return state_ == kRunnable; 223caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom#endif 224a59d1793b89d0fd62c7544c94da4b6e5dac95ad5Elliott Hughes return true; 2250cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 2260cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 227dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes uint32_t GetThinLockId() const { 228dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes return thin_lock_id_; 229b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 230b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 231d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pid_t GetTid() const { 232d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes return tid_; 233d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 234e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 235fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes // Returns the java.lang.Thread's name, or NULL. 236899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes String* GetThreadName() const; 237899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 238899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes // Sets the thread's name. 239899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes void SetThreadName(const char* name); 240fc86162ce2a3467acb690e18cc8bd9b3daafc606Elliott Hughes 241d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes Object* GetPeer() const { 2428daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes return peer_; 2438daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes } 2448daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 245a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes Object* GetThreadGroup() const; 246a215526d5c789cbef0f81a1f9aba22541a841ccaElliott Hughes 2479d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes RuntimeStats* GetStats() { 2489d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes return &stats_; 2499d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes } 2509d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes 251d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes int GetSuspendCount() const { 252d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes return suspend_count_; 253d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes } 2540cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 255d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes // Returns the current Method* and native PC (not dex PC) for this thread. 256d07986fad0d08cdf05505cf9230714a2cf0dd9aeElliott Hughes Method* GetCurrentMethod(uintptr_t* pc = NULL, Method*** sp = NULL) const; 25733dc7717cd16592bcc825350bea6305be9eb2ea1jeffhao 2580e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro bool IsExceptionPending() const { 259b20a554613609dc372073d2ebd9fbc3925a429f5Elliott Hughes return exception_ != NULL; 2600e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2610e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 262e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes Throwable* GetException() const { 2630cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers DCHECK(CanAccessDirectReferences()); 2640e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro return exception_; 2650e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2660e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 2670cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers void SetException(Throwable* new_exception) { 2680cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers DCHECK(CanAccessDirectReferences()); 2690cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers CHECK(new_exception != NULL); 2700cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers // TODO: CHECK(exception_ == NULL); 2710cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers exception_ = new_exception; // TODO 2720cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 2730cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 2740cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers void ClearException() { 2750cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers exception_ = NULL; 276a09576416788b916095739e43a16917e7948f3a4Elliott Hughes } 277a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 278bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Find catch block and perform long jump to appropriate exception handle 279ff1ed4770bf7ff024a807b9f909b1a26abb78341Ian Rogers void DeliverException(); 280bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 281bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers Context* GetLongJumpContext(); 282bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 2831a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao Frame GetTopOfStack() const { 2841a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao return top_of_managed_stack_; 2851a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 2861a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 2871a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao // TODO: this is here for testing, remove when we have exception unit tests 2881a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao // that use the real stack 289bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers void SetTopOfStack(void* stack, uintptr_t pc) { 2900cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers top_of_managed_stack_.SetSP(reinterpret_cast<Method**>(stack)); 291bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers top_of_managed_stack_pc_ = pc; 2920e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2930e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 294bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers void SetTopOfStackPC(uintptr_t pc) { 295bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers top_of_managed_stack_pc_ = pc; 296bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 297bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 2985cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes // 'msg' may be NULL. 2995cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes void ThrowNewException(const char* exception_class_descriptor, const char* msg); 3005cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes 3015cb5ad27944efb08d4556b3c0d362302e37e832bElliott Hughes void ThrowNewExceptionF(const char* exception_class_descriptor, const char* fmt, ...) 302362f9bc807169bcfc8761dde067bbfb79b5ad0fdElliott Hughes __attribute__((format(printf, 3, 4))); 303a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 3044a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes void ThrowNewExceptionV(const char* exception_class_descriptor, const char* fmt, va_list ap); 3054a2b41793d18d402286ae37e9de4fd392bc75a08Elliott Hughes 3062ced6a534157d5d963693346904389c19775d2daElliott Hughes // OutOfMemoryError is special, because we need to pre-allocate an instance. 3072ced6a534157d5d963693346904389c19775d2daElliott Hughes void ThrowOutOfMemoryError(const char* msg); 308418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes void ThrowOutOfMemoryError(Class* c, size_t byte_count); 30979082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 3101a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao Frame FindExceptionHandler(void* throw_pc, void** handler_pc); 3111a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 3121a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao void* FindExceptionHandlerInMethod(const Method* method, 3131a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao void* throw_pc, 3141a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao const DexFile& dex_file, 3151a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao ClassLinker* class_linker); 316c143c55718342519db5398e41dda31422cf16c79buzbee 317be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static void Startup(); 318038a806df72f884d22283a84a31c9a1d35ba1fdfElliott Hughes static void FinishStartup(); 319c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes static void Shutdown(); 320b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 321b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // JNI methods 32269f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes JNIEnvExt* GetJniEnv() const { 323b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return jni_env_; 324b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 325b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 326408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Number of references allocated in SIRTs on this thread 327408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers size_t NumSirtReferences(); 328a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 329408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Is the given obj in this thread's stack indirect reference table? 330408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers bool SirtContains(jobject obj); 331408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 3328dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao void SirtVisitRoots(Heap::RootVisitor* visitor, void* arg); 3338dfc9d551a9603eb8bc8463621b7bc73c3035169Shih-wei Liao 334408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Convert a jobject into a Object* 335408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers Object* DecodeJObject(jobject obj); 336b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 3378daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Implements java.lang.Thread.interrupted. 3388daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes bool Interrupted() { 33985d1545e985ac689db4bad7849880e843707c862Elliott Hughes MutexLock mu(*wait_mutex_); 3408daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes bool interrupted = interrupted_; 3418daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes interrupted_ = false; 3428daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes return interrupted; 3438daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes } 3448daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 3458daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Implements java.lang.Thread.isInterrupted. 3468daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes bool IsInterrupted() { 34785d1545e985ac689db4bad7849880e843707c862Elliott Hughes MutexLock mu(*wait_mutex_); 3488daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes return interrupted_; 3498daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes } 3508daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 3515f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes void Interrupt() { 35285d1545e985ac689db4bad7849880e843707c862Elliott Hughes MutexLock mu(*wait_mutex_); 3535f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (interrupted_) { 3545f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes return; 3555f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 3565f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes interrupted_ = true; 3575f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes NotifyLocked(); 3585f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 3595f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 3605f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes void Notify() { 36185d1545e985ac689db4bad7849880e843707c862Elliott Hughes MutexLock mu(*wait_mutex_); 3625f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes NotifyLocked(); 3635f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 3645f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 3656de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers // Linked list recording transitions from native to managed code 366b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers void PushNativeToManagedRecord(NativeToManagedRecord* record); 367b04f69f90d2594092bec5b294bbe7329d295bd66Ian Rogers void PopNativeToManagedRecord(const NativeToManagedRecord& record); 3686de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers 369bffb15585b8fd43d3ca534ddbb85e7f591595951Brian Carlstrom const ClassLoader* GetClassLoaderOverride() { 3700cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers // TODO: need to place the class_loader_override_ in a handle 3710cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers // DCHECK(CanAccessDirectReferences()); 372c143c55718342519db5398e41dda31422cf16c79buzbee return class_loader_override_; 373c143c55718342519db5398e41dda31422cf16c79buzbee } 374c143c55718342519db5398e41dda31422cf16c79buzbee 375bffb15585b8fd43d3ca534ddbb85e7f591595951Brian Carlstrom void SetClassLoaderOverride(const ClassLoader* class_loader_override) { 376c143c55718342519db5398e41dda31422cf16c79buzbee class_loader_override_ = class_loader_override; 377c143c55718342519db5398e41dda31422cf16c79buzbee } 378c143c55718342519db5398e41dda31422cf16c79buzbee 379aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // Create the internal representation of a stack trace, that is more time 380aaa208006d7c8cc0f381c4aa9b525be24066c495Ian Rogers // and space efficient to compute than the StackTraceElement[] 38101158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobject CreateInternalStackTrace(JNIEnv* env) const; 38201158d7a57c8321370667a6045220237d16e0da8Elliott Hughes 38301158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // Convert an internal stack trace representation (returned by CreateInternalStackTrace) to a 38401158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // StackTraceElement[]. If output_array is NULL, a new array is created, otherwise as many 38501158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // frames as will fit are written into the given array. If stack_depth is non-NULL, it's updated 38601158d7a57c8321370667a6045220237d16e0da8Elliott Hughes // with the number of valid frames in the returned array. 38701158d7a57c8321370667a6045220237d16e0da8Elliott Hughes static jobjectArray InternalStackTraceToStackTraceElementArray(JNIEnv* env, jobject internal, 38801158d7a57c8321370667a6045220237d16e0da8Elliott Hughes jobjectArray output_array = NULL, int* stack_depth = NULL); 38955df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 390d6b1f6190c8ec42facb08aca34b093244774b318Ian Rogers void VisitRoots(Heap::RootVisitor* visitor, void* arg); 391410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 392be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // 393be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // Offsets of various members of native Thread class, used by compiled code. 394be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes // 395be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 396be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset SelfOffset() { 397be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, self_)); 398be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 399be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 400be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset ExceptionOffset() { 401be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, exception_)); 402be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 403be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 40454e7df1896a4066cbb9fe6f72249829f0b8c49c6Elliott Hughes static ThreadOffset ThinLockIdOffset() { 405be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, thin_lock_id_)); 406be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 407be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 408be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset CardTableOffset() { 409be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, card_table_)); 410be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 411be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 412be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset SuspendCountOffset() { 413be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, suspend_count_)); 414be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 415be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 416be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset StateOffset() { 41793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes return ThreadOffset(OFFSETOF_VOLATILE_MEMBER(Thread, state_)); 418be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 419be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 420932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Size of stack less any space reserved for stack overflow 421932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers size_t GetStackSize() { 422932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers return stack_size_ - (stack_end_ - stack_base_); 423932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers } 424932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 425932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set the stack end to that to be used during a stack overflow 426932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers void SetStackEndForStackOverflow() { 427932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // During stack overflow we allow use of the full stack 4283b6baaa203fa63f1522b2172a1645f90412afdaeElliott Hughes if (stack_end_ == stack_base_) { 4293b6baaa203fa63f1522b2172a1645f90412afdaeElliott Hughes DumpStack(std::cerr); 4303b6baaa203fa63f1522b2172a1645f90412afdaeElliott Hughes LOG(FATAL) << "Need to increase kStackOverflowReservedBytes (currently " 4313b6baaa203fa63f1522b2172a1645f90412afdaeElliott Hughes << kStackOverflowReservedBytes << ")"; 4323b6baaa203fa63f1522b2172a1645f90412afdaeElliott Hughes } 4333b6baaa203fa63f1522b2172a1645f90412afdaeElliott Hughes 434932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers stack_end_ = stack_base_; 435932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers } 436932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 437932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Set the stack end to that to be used during regular execution 438932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers void ResetDefaultStackEnd() { 439932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Our stacks grow down, so we want stack_end_ to be near there, but reserving enough room 440932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // to throw a StackOverflowError. 441932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers stack_end_ = stack_base_ + kStackOverflowReservedBytes; 442932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers } 443932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 444449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes static ThreadOffset StackEndOffset() { 445449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, stack_end_)); 446be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 447be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 448be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset JniEnvOffset() { 449be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, jni_env_)); 450be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 451be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 452be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset TopOfManagedStackOffset() { 453be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, top_of_managed_stack_) + 454be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes OFFSETOF_MEMBER(Frame, sp_)); 455be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 456be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 457bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers static ThreadOffset TopOfManagedStackPcOffset() { 458bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, top_of_managed_stack_pc_)); 459bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers } 460bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 46140381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom void PushSirt(StackIndirectReferenceTable* sirt); 46240381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom StackIndirectReferenceTable* PopSirt(); 46340381fb9dc4b4cf274f1e58b2cdf4396202c6189Brian Carlstrom 464be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static ThreadOffset TopSirtOffset() { 465be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes return ThreadOffset(OFFSETOF_MEMBER(Thread, top_sirt_)); 466be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes } 467be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 4689407c60800c95902fba0b3c3265520d47c1e7052Shih-wei Liao void WalkStack(StackVisitor* visitor) const; 4699407c60800c95902fba0b3c3265520d47c1e7052Shih-wei Liao 470475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes DebugInvokeReq* GetInvokeReq() { 471475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes return debug_invoke_req_; 472475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes } 473475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 474e343b76af81a005ef64f5e75a555389fd9147dabjeffhao bool IsTraceStackEmpty() const { 475e343b76af81a005ef64f5e75a555389fd9147dabjeffhao return trace_stack_->empty(); 476e343b76af81a005ef64f5e75a555389fd9147dabjeffhao } 477e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 478a9ef3fd82bebc6370fc3ddbb094988feb6c83022jeffhao TraceStackFrame GetTraceStackFrame(uint32_t depth) const { 479a9ef3fd82bebc6370fc3ddbb094988feb6c83022jeffhao return trace_stack_->at(trace_stack_->size() - depth - 1); 480a9ef3fd82bebc6370fc3ddbb094988feb6c83022jeffhao } 481a9ef3fd82bebc6370fc3ddbb094988feb6c83022jeffhao 482e343b76af81a005ef64f5e75a555389fd9147dabjeffhao void PushTraceStackFrame(const TraceStackFrame& frame) { 483e343b76af81a005ef64f5e75a555389fd9147dabjeffhao trace_stack_->push_back(frame); 484e343b76af81a005ef64f5e75a555389fd9147dabjeffhao } 485e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 486e343b76af81a005ef64f5e75a555389fd9147dabjeffhao TraceStackFrame PopTraceStackFrame() { 487e343b76af81a005ef64f5e75a555389fd9147dabjeffhao TraceStackFrame frame = trace_stack_->back(); 488e343b76af81a005ef64f5e75a555389fd9147dabjeffhao trace_stack_->pop_back(); 489e343b76af81a005ef64f5e75a555389fd9147dabjeffhao return frame; 490e343b76af81a005ef64f5e75a555389fd9147dabjeffhao } 491e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 4920e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro private: 493dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes Thread(); 494c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes ~Thread(); 49502b48d1dae0c3adc01ef6668226fb648fb52990aElliott Hughes friend class ThreadList; // For ~Thread. 4960e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 4975fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes void CreatePeer(const char* name, bool as_daemon); 4985fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes friend class Runtime; // For CreatePeer. 4995fe594f576225dd7d333835e39c448a71ea9b433Elliott Hughes 500d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes void DumpState(std::ostream& os) const; 501d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes void DumpStack(std::ostream& os) const; 502d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 503accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes // Out-of-line conveniences for debugging in gdb. 504498508c1187dc07d3eae5476784cde20f5224d93Elliott Hughes static Thread* CurrentFromGdb(); // Like Thread::Current. 505accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes void DumpFromGdb() const; // Like Thread::Dump(std::cerr). 506accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 50793e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes void Attach(const Runtime* runtime); 50893e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes static void* CreateCallback(void* arg); 50993e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes 510accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes void HandleUncaughtExceptions(); 5114514d3c0e69a49f5dbe19138330a2bb2aee36d63Brian Carlstrom void RemoveFromThreadGroup(); 512accd83d1523545ac69bafd38e72a7d5cff8e2facElliott Hughes 5135d76c435082332ef79a22962386fa92a0870e378Ian Rogers void InitCardTable(); 514b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers void InitCpu(); 5153ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee void InitFunctionPointers(); 516caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom void InitTid(); 517caabb1b77b4a55eb1bb45ebcd3071c9ea01dd3cfBrian Carlstrom void InitPthreadKeySelf(); 518be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes void InitStackHwm(); 519be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 5205f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes void NotifyLocked() { 5215f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes if (wait_monitor_ != NULL) { 52285d1545e985ac689db4bad7849880e843707c862Elliott Hughes wait_cond_->Signal(); 5235f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 5245f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes } 5255f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 526be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes static void ThreadExitCallback(void* arg); 527b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 52867375acd9fec74cc2054554fe1ed0a7d213e1e47Ian Rogers void WalkStackUntilUpCall(StackVisitor* visitor, bool include_upcall) const; 529bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 530dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // Thin lock thread id. This is a small integer used by the thin lock implementation. 531dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // This is not to be confused with the native thread's tid, nor is it the value returned 532dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // by java.lang.Thread.getId --- this is a distinct value, used only for locking. One 533dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // important difference between this id and the ids visible to managed code is that these 534dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // ones get reused (to ensure that they fit in the number of bits available). 535dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes uint32_t thin_lock_id_; 536b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 537d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // System thread id. 538d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pid_t tid_; 539d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 540dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes // Our managed peer (an instance of java.lang.Thread). 541d369bb76dee0df2d2a106e9bf7f4e6446ed6deaaElliott Hughes Object* peer_; 5428daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes 5438e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // The top_of_managed_stack_ and top_of_managed_stack_pc_ fields are accessed from 5448e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // compiled code, so we keep them early in the structure to (a) avoid having to keep 5458e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // fixing the assembler offsets and (b) improve the chances that these will still be aligned. 5468e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 5478e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // Top of the managed stack, written out prior to the state transition from 54868e76526e98432625464022cb26f66b9ef6f5af4Elliott Hughes // kRunnable to kNative. Uses include giving the starting point for scanning 5498e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // a managed stack when a thread is in native code. 5508e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Frame top_of_managed_stack_; 5518e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // PC corresponding to the call out of the top_of_managed_stack_ frame 5528e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes uintptr_t top_of_managed_stack_pc_; 5538e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes 5548daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Guards the 'interrupted_' and 'wait_monitor_' members. 55585d1545e985ac689db4bad7849880e843707c862Elliott Hughes mutable Mutex* wait_mutex_; 55685d1545e985ac689db4bad7849880e843707c862Elliott Hughes ConditionVariable* wait_cond_; 5578daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Pointer to the monitor lock we're currently waiting on (or NULL), guarded by wait_mutex_. 5588daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes Monitor* wait_monitor_; 5598daa0929f08a3080ea64dbd4e997e72f411e6fc9Elliott Hughes // Thread "interrupted" status; stays raised until queried or thrown, guarded by wait_mutex_. 5608e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes uint32_t interrupted_; 5615f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes // The next thread in the wait set this thread is part of. 5625f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes Thread* wait_next_; 5638e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes // If we're blocked in MonitorEnter, this is the object we're trying to lock. 5648e4aac52962d54cb4be2078b9cd95685e067133aElliott Hughes Object* monitor_enter_object_; 5655f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes 5665f79133a435ebcb20000370d56046fe01201dd80Elliott Hughes friend class Monitor; 567dcc247493fd8fb243e335c3ec08e5e625896a47cElliott Hughes 5689d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes RuntimeStats stats_; 5699d5ccec86d60c9ddd811836b9a2bc28d0b3d11feElliott Hughes 5705d76c435082332ef79a22962386fa92a0870e378Ian Rogers // The biased card table, see CardTable for details 5715d76c435082332ef79a22962386fa92a0870e378Ian Rogers byte* card_table_; 572c143c55718342519db5398e41dda31422cf16c79buzbee 573449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // The end of this thread's stack. This is the lowest safely-addressable address on the stack. 574449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes // We leave extra space so there's room for the code that throws StackOverflowError. 575449b4bdf90b527ef7a42faaf087494538e62363cElliott Hughes byte* stack_end_; 576be759c63c6bb58b76ac71cad2c5a736bd31f374dElliott Hughes 577932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // Size of the stack 578932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers size_t stack_size_; 579932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 580932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers // The "lowest addressable byte" of the stack 581932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers byte* stack_base_; 582932746a4f22951abcba7b7c4c94c27b1bf164272Ian Rogers 5836de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers // A linked list (of stack allocated records) recording transitions from 5846de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers // native to managed code. 5856de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers NativeToManagedRecord* native_to_managed_record_; 5866de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers 587408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Top of linked list of stack indirect reference tables or NULL for none 588408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers StackIndirectReferenceTable* top_sirt_; 589b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 590b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // Every thread may have an associated JNI environment 59169f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes JNIEnvExt* jni_env_; 592b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 59393e74e8d879270071c3aa163f8495ada8d21f42fElliott Hughes volatile State state_; 594b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 59569759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // Initialized to "this". On certain architectures (such as x86) reading 59669759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // off of Thread::Current is easy but getting the address of Thread::Current 59769759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // is hard. This field can be read off of Thread::Current to give the address. 59869759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro Thread* self_; 59969759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro 60069759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro Runtime* runtime_; 60169759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro 60269759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // The pending exception or NULL. 603e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes Throwable* exception_; 6040e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 60545a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // A non-zero value is used to tell the current thread to enter a safe point 60645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // at the next poll. 60745a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers int suspend_count_; 608234ab15b00f8120282d1833e5d7480eca2e35a29Elliott Hughes // How much of 'suspend_count_' is by request of the debugger, used to set things right 609234ab15b00f8120282d1833e5d7480eca2e35a29Elliott Hughes // when the debugger detaches. Must be <= suspend_count_. 610234ab15b00f8120282d1833e5d7480eca2e35a29Elliott Hughes int debug_suspend_count_; 61145a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 612edcc09c737b00462881f147602656739d029571eElliott Hughes // Needed to get the right ClassLoader in JNI_OnLoad, but also 613edcc09c737b00462881f147602656739d029571eElliott Hughes // useful for testing. 614bffb15585b8fd43d3ca534ddbb85e7f591595951Brian Carlstrom const ClassLoader* class_loader_override_; 615c143c55718342519db5398e41dda31422cf16c79buzbee 616bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers // Thread local, lazily allocated, long jump context. Used to deliver exceptions. 61785d1545e985ac689db4bad7849880e843707c862Elliott Hughes Context* long_jump_context_; 618bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 619418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes // A boolean telling us whether we're recursively throwing OOME. 620726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes uint32_t throwing_OutOfMemoryError_; 621726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes 622726079d3e2e50854cd6ca4c393f4529a796dba58Elliott Hughes Throwable* pre_allocated_OutOfMemoryError_; 623418dfe7849f45535b5388a91bd7a16cfc20a612bElliott Hughes 624475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes // JDWP invoke-during-breakpoint support. 625475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes DebugInvokeReq* debug_invoke_req_; 626475fc23a4a7f35d1be87ea0b06c80df317a720acElliott Hughes 62769759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // TLS key used to retrieve the VM thread object. 628b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro static pthread_key_t pthread_key_self_; 629b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 630e343b76af81a005ef64f5e75a555389fd9147dabjeffhao // Additional stack used by method tracer to store method and return pc values. 631e343b76af81a005ef64f5e75a555389fd9147dabjeffhao // Stored as a pointer since std::vector is not PACKED. 632e343b76af81a005ef64f5e75a555389fd9147dabjeffhao std::vector<TraceStackFrame>* trace_stack_; 633e343b76af81a005ef64f5e75a555389fd9147dabjeffhao 634899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes // A cached copy of the java.lang.Thread's name. 635899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes std::string* name_; 636899e789bd4741c0172268f7838ce8ab220a5f916Elliott Hughes 6370e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro DISALLOW_COPY_AND_ASSIGN(Thread); 6380e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro}; 639bdb0391258abc54bf77c676e36847d28a783bfe5Ian Rogers 640330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread); 641b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogersstd::ostream& operator<<(std::ostream& os, const Thread::State& state); 6420e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 643ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughesclass ScopedThreadStateChange { 644ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes public: 645ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes ScopedThreadStateChange(Thread* thread, Thread::State new_state) : thread_(thread) { 646ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes old_thread_state_ = thread_->SetState(new_state); 647ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes } 648ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes 649ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes ~ScopedThreadStateChange() { 650ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes thread_->SetState(old_thread_state_); 651ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes } 652ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes 653ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes private: 654ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes Thread* thread_; 655ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes Thread::State old_thread_state_; 656ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes DISALLOW_COPY_AND_ASSIGN(ScopedThreadStateChange); 657ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes}; 658ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes 6590e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro} // namespace art 6600e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 6610e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#endif // ART_SRC_THREAD_H_ 662