src/os/windows/vm/os_windows.cpp

*** 68,77 ****
--- 68,78 ----
  #include "services/runtimeService.hpp"
  #include "utilities/decoder.hpp"
  #include "utilities/defaultStream.hpp"
  #include "utilities/events.hpp"
  #include "utilities/growableArray.hpp"
+ #include "utilities/semaphore.hpp"
  #include "utilities/vmError.hpp"
  
  #ifdef _DEBUG
  #include <crtdbg.h>
  #endif
*** 1893,1902 ****
--- 1894,1940 ----
      error = errno;
    }
    return (int)error;
  }
  
+ Semaphore::Semaphore(uint value, uint max) {
+   _semaphore = ::CreateSemaphore(NULL, value, max, NULL);
+ 
+   guarantee(_semaphore != NULL, err_msg("CreateSemaphore failed: %ld", GetLastError()));
+ }
+ 
+ Semaphore::~Semaphore() {
+   if (_semaphore != NULL) {
+     ::CloseHandle(_semaphore);
+   }
+ }
+ 
+ void Semaphore::signal(uint count) {
+   BOOL ret = ::ReleaseSemaphore(_semaphore, count, NULL);
+ 
+   guarantee(ret != 0, err_msg("ReleaseSemaphore failed: %d", GetLastError()));
+ }
+ 
+ void Semaphore::signal() {
+   signal(1);
+ }
+ 
+ void Semaphore::wait() {
+   DWORD ret = ::WaitForSingleObject(_semaphore, INFINITE);
+   guarantee(ret == WAIT_OBJECT_0, err_msg("WaitForSingleObject failed: %d", GetLastError()));
+ }
+ 
+ bool Semaphore::trywait() {
+   Unimplemented();
+   return false;
+ }
+ 
+ bool Semaphore::timedwait(unsigned int sec, int nsec) {
+   Unimplemented();
+   return false;
+ }
+ 
  // sun.misc.Signal
  // NOTE that this is a workaround for an apparent kernel bug where if
  // a signal handler for SIGBREAK is installed then that signal handler
  // takes priority over the console control handler for CTRL_CLOSE_EVENT.
  // See bug 4416763.