src/kits/debugger/jobs/GetThreadStateJob.cpp

   1 /*
   2  * Copyright 2012-2016, Rene Gollent, rene@gollent.com.
   3  * Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
   4  * Distributed under the terms of the MIT License.
   5  */
   6
   7 #include "Jobs.h"
   8
   9 #include <AutoLocker.h>
  10
  11 #include "CpuState.h"
  12 #include "DebuggerInterface.h"
  13 #include "Team.h"
  14 #include "Thread.h"
  15
  16
  17 GetThreadStateJob::GetThreadStateJob(DebuggerInterface* debuggerInterface,
  18         ::Thread* thread)
  19         :
  20         fKey(thread, JOB_TYPE_GET_THREAD_STATE),
  21         fDebuggerInterface(debuggerInterface),
  22         fThread(thread)
  23 {
  24         fThread->AcquireReference();
  25 }
  26
  27
  28 GetThreadStateJob::~GetThreadStateJob()
  29 {
  30         fThread->ReleaseReference();
  31 }
  32
  33
  34 const JobKey&
  35 GetThreadStateJob::Key() const
  36 {
  37         return fKey;
  38 }
  39
  40
  41 status_t
  42 GetThreadStateJob::Do()
  43 {
  44         CpuState* state = NULL;
  45         status_t error = fDebuggerInterface->GetCpuState(fThread->ID(), state);
  46         BReference<CpuState> reference(state, true);
  47
  48         AutoLocker<Team> locker(fThread->GetTeam());
  49
  50         if (fThread->State() != THREAD_STATE_UNKNOWN)
  51                 return B_OK;
  52
  53         if (error == B_OK) {
  54                 fThread->SetState(THREAD_STATE_STOPPED);
  55                 fThread->SetCpuState(state);
  56         } else if (error == B_BAD_THREAD_STATE) {
  57                 fThread->SetState(THREAD_STATE_RUNNING);
  58         } else
  59                 return error;
  60
  61         return B_OK;
  62 }