src/share/vm/compiler/abstractCompiler.cpp

*** 23,64 ****
  
  
  #include "precompiled.hpp"
  #include "compiler/abstractCompiler.hpp"
  #include "runtime/mutexLocker.hpp"
- void AbstractCompiler::initialize_runtimes(initializer f, volatile int* state) {
-   if (*state != initialized) {
  
!     // We are thread in native here...
!     CompilerThread* thread = CompilerThread::current();
!     bool do_initialization = false;
!     {
!       ThreadInVMfromNative tv(thread);
!       ResetNoHandleMark rnhm;
!       MutexLocker only_one(CompileThread_lock, thread);
!       if ( *state == uninitialized) {
!         do_initialization = true;
!         *state = initializing;
        } else {
!         while (*state == initializing ) {
            CompileThread_lock->wait();
          }
        }
      }
!     if (do_initialization) {
!       // We can not hold any locks here since JVMTI events may call agents
! 
!       // Compiler(s) run as native
! 
!       (*f)();
  
!       // To in_vm so we can use the lock
  
!       ThreadInVMfromNative tv(thread);
!       ResetNoHandleMark rnhm;
!       MutexLocker only_one(CompileThread_lock, thread);
!       assert(*state == initializing, "wrong state");
!       *state = initialized;
        CompileThread_lock->notify_all();
-     }
-   }
  }
--- 23,64 ----
  
  
  #include "precompiled.hpp"
  #include "compiler/abstractCompiler.hpp"
  #include "runtime/mutexLocker.hpp"
  
! bool AbstractCompiler::should_perform_init() {
!   if (_compiler_state != initialized) {
!     MutexLocker only_one(CompileThread_lock);
! 
!     if (_compiler_state == uninitialized) {
!       _compiler_state = initializing;
!       return true;
      } else {
!       while (_compiler_state == initializing) {
          CompileThread_lock->wait();
        }
      }
    }
!   return false;
! }
  
! bool AbstractCompiler::should_perform_shutdown() {
!   // Since this method can be called by multiple threads, the lock ensures atomicity of
!   // decrementing '_num_compiler_threads' and the following operations.
!   MutexLocker only_one(CompileThread_lock);
!   _num_compiler_threads--;
!   assert (CompileBroker::is_compilation_disabled_forever(), "Must be set, otherwise thread waits forever");
! 
!   // Only the last thread will perform shutdown operations
!   if (_num_compiler_threads == 0) {
!     return true;
!   }
!   return false;
! }
  
! void AbstractCompiler::set_state(int state) {
!   // Ensure that ste is only set by one thread at a time
!   MutexLocker only_one(CompileThread_lock);
!   _compiler_state =  state;
    CompileThread_lock->notify_all();
  }