22  *
  23  */
  24 
  25 // no precompiled headers
  26 #include "runtime/orderAccess.hpp"
  27 #include "runtime/os.hpp"
  28 #include "runtime/osThread.hpp"
  29 
  30 void OSThread::pd_initialize() {
  31   set_thread_handle(NULL);
  32   set_thread_id(NULL);
  33   set_interrupt_event(NULL);
  34 }
  35 
  36 void OSThread::pd_destroy() {
  37   if (_interrupt_event != NULL) {
  38     CloseHandle(_interrupt_event);
  39   }
  40 }
  41 
  42 // We need to specialize these to interact with the _interrupt_event.
  43 
  44 volatile bool OSThread::interrupted() {
  45   return _interrupted != 0 &&
  46     (WaitForSingleObject(_interrupt_event, 0) == WAIT_OBJECT_0);
  47 }
  48 
  49 void OSThread::set_interrupted(bool z) {
  50   if (z) {
  51     _interrupted = 1;
  52     // More than one thread can get here with the same value of osthread,
  53     // resulting in multiple notifications.  We do, however, want the store
  54     // to interrupted() to be visible to other threads before we post
  55     // the interrupt event.
  56     OrderAccess::release();
  57     SetEvent(_interrupt_event);
  58   }
  59   else {
  60     // We should only ever clear the interrupt if we are in fact interrupted,
  61     // and this can only be done by the current thread on itself.
  62     assert(_interrupted == 1, "invariant for clearing interrupt state");
  63     _interrupted = 0;
  64     ResetEvent(_interrupt_event);
  65   }
  66 }

  22  *
  23  */
  24 
  25 // no precompiled headers
  26 #include "runtime/orderAccess.hpp"
  27 #include "runtime/os.hpp"
  28 #include "runtime/osThread.hpp"
  29 
  30 void OSThread::pd_initialize() {
  31   set_thread_handle(NULL);
  32   set_thread_id(NULL);
  33   set_interrupt_event(NULL);
  34 }
  35 
  36 void OSThread::pd_destroy() {
  37   if (_interrupt_event != NULL) {
  38     CloseHandle(_interrupt_event);
  39   }
  40 }
  41 
  42 // We need to specialize this to interact with the _interrupt_event.





  43 
  44 void OSThread::set_interrupted(bool z) {
  45   if (z) {






  46     SetEvent(_interrupt_event);
  47   }
  48   else {
  49     // We should only ever clear the interrupt if we are in fact interrupted,
  50     // and this can only be done by the current thread on itself.


  51     ResetEvent(_interrupt_event);
  52   }
  53 }