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      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 <ostream>
     21 
     22 namespace art {
     23 
     24 enum ThreadState {
     25   //                                   Thread.State   JDWP state
     26   kTerminated = 66,                 // TERMINATED     TS_ZOMBIE    Thread.run has returned, but Thread* still around
     27   kRunnable,                        // RUNNABLE       TS_RUNNING   runnable
     28   kTimedWaiting,                    // TIMED_WAITING  TS_WAIT      in Object.wait() with a timeout
     29   kSleeping,                        // TIMED_WAITING  TS_SLEEPING  in Thread.sleep()
     30   kBlocked,                         // BLOCKED        TS_MONITOR   blocked on a monitor
     31   kWaiting,                         // WAITING        TS_WAIT      in Object.wait()
     32   kWaitingForGcToComplete,          // WAITING        TS_WAIT      blocked waiting for GC
     33   kWaitingForCheckPointsToRun,      // WAITING        TS_WAIT      GC waiting for checkpoints to run
     34   kWaitingPerformingGc,             // WAITING        TS_WAIT      performing GC
     35   kWaitingForDebuggerSend,          // WAITING        TS_WAIT      blocked waiting for events to be sent
     36   kWaitingForDebuggerToAttach,      // WAITING        TS_WAIT      blocked waiting for debugger to attach
     37   kWaitingInMainDebuggerLoop,       // WAITING        TS_WAIT      blocking/reading/processing debugger events
     38   kWaitingForDebuggerSuspension,    // WAITING        TS_WAIT      waiting for debugger suspend all
     39   kWaitingForJniOnLoad,             // WAITING        TS_WAIT      waiting for execution of dlopen and JNI on load code
     40   kWaitingForSignalCatcherOutput,   // WAITING        TS_WAIT      waiting for signal catcher IO to complete
     41   kWaitingInMainSignalCatcherLoop,  // WAITING        TS_WAIT      blocking/reading/processing signals
     42   kWaitingForDeoptimization,        // WAITING        TS_WAIT      waiting for deoptimization suspend all
     43   kWaitingForMethodTracingStart,    // WAITING        TS_WAIT      waiting for method tracing to start
     44   kWaitingForVisitObjects,          // WAITING        TS_WAIT      waiting for visiting objects
     45   kWaitingForGetObjectsAllocated,   // WAITING        TS_WAIT      waiting for getting the number of allocated objects
     46   kWaitingWeakGcRootRead,           // WAITING        TS_WAIT      waiting on the GC to read a weak root
     47   kWaitingForGcThreadFlip,          // WAITING        TS_WAIT      waiting on the GC thread flip (CC collector) to finish
     48   kStarting,                        // NEW            TS_WAIT      native thread started, not yet ready to run managed code
     49   kNative,                          // RUNNABLE       TS_RUNNING   running in a JNI native method
     50   kSuspended,                       // RUNNABLE       TS_RUNNING   suspended by GC or debugger
     51 };
     52 std::ostream& operator<<(std::ostream& os, const ThreadState& rhs);
     53 
     54 }  // namespace art
     55 
     56 #endif  // ART_RUNTIME_THREAD_STATE_H_
     57