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src/hotspot/share/classfile/protectionDomainCache.cpp

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rev 56464 : 8231707: Improve Mutex inlining
Contributed-by: robbin.ehn@oracle.com, claes.redestad@oracle.com


  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 "classfile/classLoaderDataGraph.hpp"
  27 #include "classfile/dictionary.hpp"
  28 #include "classfile/protectionDomainCache.hpp"
  29 #include "classfile/systemDictionary.hpp"
  30 #include "logging/log.hpp"
  31 #include "logging/logStream.hpp"
  32 #include "memory/iterator.hpp"
  33 #include "memory/resourceArea.hpp"
  34 #include "oops/oop.inline.hpp"
  35 #include "oops/weakHandle.inline.hpp"

  36 #include "utilities/hashtable.inline.hpp"
  37 
  38 unsigned int ProtectionDomainCacheTable::compute_hash(Handle protection_domain) {
  39   // Identity hash can safepoint, so keep protection domain in a Handle.
  40   return (unsigned int)(protection_domain->identity_hash());
  41 }
  42 
  43 int ProtectionDomainCacheTable::index_for(Handle protection_domain) {
  44   return hash_to_index(compute_hash(protection_domain));
  45 }
  46 
  47 ProtectionDomainCacheTable::ProtectionDomainCacheTable(int table_size)
  48   : Hashtable<WeakHandle<vm_class_loader_data>, mtClass>(table_size, sizeof(ProtectionDomainCacheEntry))
  49 {   _dead_entries = false;
  50     _total_oops_removed = 0;
  51 }
  52 
  53 void ProtectionDomainCacheTable::trigger_cleanup() {
  54   MutexLocker ml(Service_lock, Mutex::_no_safepoint_check_flag);
  55   _dead_entries = true;




  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 "classfile/classLoaderDataGraph.hpp"
  27 #include "classfile/dictionary.hpp"
  28 #include "classfile/protectionDomainCache.hpp"
  29 #include "classfile/systemDictionary.hpp"
  30 #include "logging/log.hpp"
  31 #include "logging/logStream.hpp"
  32 #include "memory/iterator.hpp"
  33 #include "memory/resourceArea.hpp"
  34 #include "oops/oop.inline.hpp"
  35 #include "oops/weakHandle.inline.hpp"
  36 #include "runtime/mutexLocker.inline.hpp"
  37 #include "utilities/hashtable.inline.hpp"
  38 
  39 unsigned int ProtectionDomainCacheTable::compute_hash(Handle protection_domain) {
  40   // Identity hash can safepoint, so keep protection domain in a Handle.
  41   return (unsigned int)(protection_domain->identity_hash());
  42 }
  43 
  44 int ProtectionDomainCacheTable::index_for(Handle protection_domain) {
  45   return hash_to_index(compute_hash(protection_domain));
  46 }
  47 
  48 ProtectionDomainCacheTable::ProtectionDomainCacheTable(int table_size)
  49   : Hashtable<WeakHandle<vm_class_loader_data>, mtClass>(table_size, sizeof(ProtectionDomainCacheEntry))
  50 {   _dead_entries = false;
  51     _total_oops_removed = 0;
  52 }
  53 
  54 void ProtectionDomainCacheTable::trigger_cleanup() {
  55   MutexLocker ml(Service_lock, Mutex::_no_safepoint_check_flag);
  56   _dead_entries = true;


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