1 /* 2 * Copyright (C) 2013 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 ART_RUNTIME_THREAD_STATE_H_ 18 #define ART_RUNTIME_THREAD_STATE_H_ 19 20 #include <iosfwd> 21 22 namespace art { 23 24 // State stored in our C++ class Thread. 25 // When we refer to "a suspended state", or when function names mention "ToSuspended" or 26 // "FromSuspended", we mean any state other than kRunnable, i.e. any state in which the thread is 27 // guaranteed not to access the Java heap. The kSuspended state is merely one of these. 28 enum ThreadState { 29 // Java 30 // Thread.State JDWP state 31 kTerminated = 66, // TERMINATED TS_ZOMBIE Thread.run has returned, but Thread* still around 32 kRunnable, // RUNNABLE TS_RUNNING runnable 33 kTimedWaiting, // TIMED_WAITING TS_WAIT in Object.wait() with a timeout 34 kSleeping, // TIMED_WAITING TS_SLEEPING in Thread.sleep() 35 kBlocked, // BLOCKED TS_MONITOR blocked on a monitor 36 kWaiting, // WAITING TS_WAIT in Object.wait() 37 kWaitingForLockInflation, // WAITING TS_WAIT blocked inflating a thin-lock 38 kWaitingForTaskProcessor, // WAITING TS_WAIT blocked waiting for taskProcessor 39 kWaitingForGcToComplete, // WAITING TS_WAIT blocked waiting for GC 40 kWaitingForCheckPointsToRun, // WAITING TS_WAIT GC waiting for checkpoints to run 41 kWaitingPerformingGc, // WAITING TS_WAIT performing GC 42 kWaitingForDebuggerSend, // WAITING TS_WAIT blocked waiting for events to be sent 43 kWaitingForDebuggerToAttach, // WAITING TS_WAIT blocked waiting for debugger to attach 44 kWaitingInMainDebuggerLoop, // WAITING TS_WAIT blocking/reading/processing debugger events 45 kWaitingForDebuggerSuspension, // WAITING TS_WAIT waiting for debugger suspend all 46 kWaitingForJniOnLoad, // WAITING TS_WAIT waiting for execution of dlopen and JNI on load code 47 kWaitingForSignalCatcherOutput, // WAITING TS_WAIT waiting for signal catcher IO to complete 48 kWaitingInMainSignalCatcherLoop, // WAITING TS_WAIT blocking/reading/processing signals 49 kWaitingForDeoptimization, // WAITING TS_WAIT waiting for deoptimization suspend all 50 kWaitingForMethodTracingStart, // WAITING TS_WAIT waiting for method tracing to start 51 kWaitingForVisitObjects, // WAITING TS_WAIT waiting for visiting objects 52 kWaitingForGetObjectsAllocated, // WAITING TS_WAIT waiting for getting the number of allocated objects 53 kWaitingWeakGcRootRead, // WAITING TS_WAIT waiting on the GC to read a weak root 54 kWaitingForGcThreadFlip, // WAITING TS_WAIT waiting on the GC thread flip (CC collector) to finish 55 kNativeForAbort, // WAITING TS_WAIT checking other threads are not run on abort. 56 kStarting, // NEW TS_WAIT native thread started, not yet ready to run managed code 57 kNative, // RUNNABLE TS_RUNNING running in a JNI native method 58 kSuspended, // RUNNABLE TS_RUNNING suspended by GC or debugger 59 }; 60 std::ostream& operator<<(std::ostream& os, ThreadState rhs); 61 62 } // namespace art 63 64 #endif // ART_RUNTIME_THREAD_STATE_H_ 65