abstractCompiler.cpp revision 1879:f95d63e2154a 
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23
24
25#include "precompiled.hpp"
26#include "compiler/abstractCompiler.hpp"
27#include "runtime/mutexLocker.hpp"
28void AbstractCompiler::initialize_runtimes(initializer f, volatile int* state) {
29  if (*state != initialized) {
30
31    // We are thread in native here...
32    CompilerThread* thread = CompilerThread::current();
33    bool do_initialization = false;
34    {
35      ThreadInVMfromNative tv(thread);
36      MutexLocker only_one(CompileThread_lock, thread);
37      if ( *state == uninitialized) {
38        do_initialization = true;
39        *state = initializing;
40      } else {
41        while (*state == initializing ) {
42          CompileThread_lock->wait();
43        }
44      }
45    }
46    if (do_initialization) {
47      // We can not hold any locks here since JVMTI events may call agents
48
49      // Compiler(s) run as native
50
51      (*f)();
52
53      // To in_vm so we can use the lock
54
55      ThreadInVMfromNative tv(thread);
56      MutexLocker only_one(CompileThread_lock, thread);
57      assert(*state == initializing, "wrong state");
58      *state = initialized;
59      CompileThread_lock->notify_all();
60    }
61  }
62}
63