8 // 9 // This code is distributed in the hope that it will be useful, but WITHOUT 10 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 // version 2 for more details (a copy is included in the LICENSE file that 13 // accompanied this code). 14 // 15 // You should have received a copy of the GNU General Public License version 16 // 2 along with this work; if not, write to the Free Software Foundation, 17 // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 // 19 // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 // or visit www.oracle.com if you need additional information or have any 21 // questions. 22 // 23 24 25 #include "precompiled.hpp" 26 #include "compiler/abstractCompiler.hpp" 27 #include "runtime/mutexLocker.hpp" 28 void 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 ResetNoHandleMark rnhm; 37 MutexLocker only_one(CompileThread_lock, thread); 38 if ( *state == uninitialized) { 39 do_initialization = true; 40 *state = initializing; 41 } else { 42 while (*state == initializing ) { 43 CompileThread_lock->wait(); 44 } 45 } 46 } 47 if (do_initialization) { 48 // We can not hold any locks here since JVMTI events may call agents 49 50 // Compiler(s) run as native 51 52 (*f)(); 53 54 // To in_vm so we can use the lock 55 56 ThreadInVMfromNative tv(thread); 57 ResetNoHandleMark rnhm; 58 MutexLocker only_one(CompileThread_lock, thread); 59 assert(*state == initializing, "wrong state"); 60 *state = initialized; 61 CompileThread_lock->notify_all(); 62 } 63 } 64 } | 8 // 9 // This code is distributed in the hope that it will be useful, but WITHOUT 10 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 // version 2 for more details (a copy is included in the LICENSE file that 13 // accompanied this code). 14 // 15 // You should have received a copy of the GNU General Public License version 16 // 2 along with this work; if not, write to the Free Software Foundation, 17 // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 // 19 // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 // or visit www.oracle.com if you need additional information or have any 21 // questions. 22 // 23 24 25 #include "precompiled.hpp" 26 #include "compiler/abstractCompiler.hpp" 27 #include "runtime/mutexLocker.hpp" 28 29 bool AbstractCompiler::should_perform_init() { 30 if (_compiler_state != initialized) { 31 MutexLocker only_one(CompileThread_lock); 32 33 if (_compiler_state == uninitialized) { 34 _compiler_state = initializing; 35 return true; 36 } else { 37 while (_compiler_state == initializing ) { 38 CompileThread_lock->wait(); 39 } 40 } 41 } 42 return false; 43 } 44 45 void AbstractCompiler::set_state(int state) { 46 assert((_compiler_state == initializing) || (_compiler_state == failed), "wrong state"); 47 MutexLocker only_one(CompileThread_lock); 48 49 // The state of the compiler could have been changed by another thread if 50 // memory allocation of the buffer blob failed. 51 _compiler_state = state; 52 CompileThread_lock->notify_all(); 53 } |