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src/hotspot/share/runtime/mutexLocker.hpp

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rev 56251 : imported patch 8226705-v1
rev 56252 : imported patch 8226705-v2
rev 56253 : [mq]: 8226705-v3-pat


  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 #ifndef SHARE_RUNTIME_MUTEXLOCKER_HPP
  26 #define SHARE_RUNTIME_MUTEXLOCKER_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "runtime/flags/flagSetting.hpp"
  30 #include "runtime/mutex.hpp"
  31 
  32 // Mutexes used in the VM.
  33 
  34 extern Mutex*   Patching_lock;                   // a lock used to guard code patching of compiled code

  35 extern Monitor* SystemDictionary_lock;           // a lock on the system dictionary
  36 extern Mutex*   ProtectionDomainSet_lock;        // a lock on the pd_set list in the system dictionary
  37 extern Mutex*   SharedDictionary_lock;           // a lock on the CDS shared dictionary
  38 extern Mutex*   Module_lock;                     // a lock on module and package related data structures
  39 extern Mutex*   CompiledIC_lock;                 // a lock used to guard compiled IC patching and access
  40 extern Mutex*   InlineCacheBuffer_lock;          // a lock used to guard the InlineCacheBuffer
  41 extern Mutex*   VMStatistic_lock;                // a lock used to guard statistics count increment
  42 extern Mutex*   JNIHandleBlockFreeList_lock;     // a lock on the JNI handle block free list
  43 extern Mutex*   JmethodIdCreation_lock;          // a lock on creating JNI method identifiers
  44 extern Mutex*   JfieldIdCreation_lock;           // a lock on creating JNI static field identifiers
  45 extern Monitor* JNICritical_lock;                // a lock used while entering and exiting JNI critical regions, allows GC to sometimes get in
  46 extern Mutex*   JvmtiThreadState_lock;           // a lock on modification of JVMTI thread data
  47 extern Monitor* Heap_lock;                       // a lock on the heap
  48 extern Mutex*   ExpandHeap_lock;                 // a lock on expanding the heap
  49 extern Mutex*   AdapterHandlerLibrary_lock;      // a lock on the AdapterHandlerLibrary
  50 extern Mutex*   SignatureHandlerLibrary_lock;    // a lock on the SignatureHandlerLibrary
  51 extern Mutex*   VtableStubs_lock;                // a lock on the VtableStubs
  52 extern Mutex*   SymbolArena_lock;                // a lock on the symbol table arena
  53 extern Monitor* StringDedupQueue_lock;           // a lock on the string deduplication queue
  54 extern Mutex*   StringDedupTable_lock;           // a lock on the string deduplication table


  73                                                  // queue shared by
  74                                                  // non-Java threads.
  75 extern Mutex*   MarkStackFreeList_lock;          // Protects access to the global mark stack free list.
  76 extern Mutex*   MarkStackChunkList_lock;         // Protects access to the global mark stack chunk list.
  77 extern Mutex*   MonitoringSupport_lock;          // Protects updates to the serviceability memory pools.
  78 extern Mutex*   ParGCRareEvent_lock;             // Synchronizes various (rare) parallel GC ops.
  79 extern Mutex*   Compile_lock;                    // a lock held when Compilation is updating code (used to block CodeCache traversal, CHA updates, etc)
  80 extern Monitor* MethodCompileQueue_lock;         // a lock held when method compilations are enqueued, dequeued
  81 extern Monitor* CompileThread_lock;              // a lock held by compile threads during compilation system initialization
  82 extern Monitor* Compilation_lock;                // a lock used to pause compilation
  83 extern Mutex*   CompileTaskAlloc_lock;           // a lock held when CompileTasks are allocated
  84 extern Mutex*   CompileStatistics_lock;          // a lock held when updating compilation statistics
  85 extern Mutex*   DirectivesStack_lock;            // a lock held when mutating the dirstack and ref counting directives
  86 extern Mutex*   MultiArray_lock;                 // a lock used to guard allocation of multi-dim arrays
  87 extern Monitor* Terminator_lock;                 // a lock used to guard termination of the vm
  88 extern Monitor* InitCompleted_lock;              // a lock used to signal threads waiting on init completed
  89 extern Monitor* BeforeExit_lock;                 // a lock used to guard cleanups and shutdown hooks
  90 extern Monitor* Notify_lock;                     // a lock used to synchronize the start-up of the vm
  91 extern Mutex*   ProfilePrint_lock;               // a lock used to serialize the printing of profiles
  92 extern Mutex*   ExceptionCache_lock;             // a lock used to synchronize exception cache updates
  93 extern Mutex*   OsrList_lock;                    // a lock used to serialize access to OSR queues
  94 extern Mutex*   NMethodSweeperStats_lock;        // a lock used to serialize access to sweeper statistics
  95 
  96 #ifndef PRODUCT
  97 extern Mutex*   FullGCALot_lock;                 // a lock to make FullGCALot MT safe
  98 #endif // PRODUCT
  99 extern Mutex*   Debug1_lock;                     // A bunch of pre-allocated locks that can be used for tracing
 100 extern Mutex*   Debug2_lock;                     // down synchronization related bugs!
 101 extern Mutex*   Debug3_lock;
 102 
 103 extern Mutex*   RawMonitor_lock;
 104 extern Mutex*   PerfDataMemAlloc_lock;           // a lock on the allocator for PerfData memory for performance data
 105 extern Mutex*   PerfDataManager_lock;            // a long on access to PerfDataManager resources
 106 extern Mutex*   ParkerFreeList_lock;
 107 extern Mutex*   OopMapCacheAlloc_lock;           // protects allocation of oop_map caches
 108 
 109 extern Mutex*   FreeList_lock;                   // protects the free region list during safepoints
 110 extern Mutex*   OldSets_lock;                    // protects the old region sets
 111 extern Monitor* RootRegionScan_lock;             // used to notify that the CM threads have finished scanning the IM snapshot regions
 112 
 113 extern Mutex*   Management_lock;                 // a lock used to serialize JVM management




  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 #ifndef SHARE_RUNTIME_MUTEXLOCKER_HPP
  26 #define SHARE_RUNTIME_MUTEXLOCKER_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "runtime/flags/flagSetting.hpp"
  30 #include "runtime/mutex.hpp"
  31 
  32 // Mutexes used in the VM.
  33 
  34 extern Mutex*   Patching_lock;                   // a lock used to guard code patching of compiled code
  35 extern Mutex*   CompiledMethod_lock;             // a lock used to guard a compiled method and OSR queues
  36 extern Monitor* SystemDictionary_lock;           // a lock on the system dictionary
  37 extern Mutex*   ProtectionDomainSet_lock;        // a lock on the pd_set list in the system dictionary
  38 extern Mutex*   SharedDictionary_lock;           // a lock on the CDS shared dictionary
  39 extern Mutex*   Module_lock;                     // a lock on module and package related data structures
  40 extern Mutex*   CompiledIC_lock;                 // a lock used to guard compiled IC patching and access
  41 extern Mutex*   InlineCacheBuffer_lock;          // a lock used to guard the InlineCacheBuffer
  42 extern Mutex*   VMStatistic_lock;                // a lock used to guard statistics count increment
  43 extern Mutex*   JNIHandleBlockFreeList_lock;     // a lock on the JNI handle block free list
  44 extern Mutex*   JmethodIdCreation_lock;          // a lock on creating JNI method identifiers
  45 extern Mutex*   JfieldIdCreation_lock;           // a lock on creating JNI static field identifiers
  46 extern Monitor* JNICritical_lock;                // a lock used while entering and exiting JNI critical regions, allows GC to sometimes get in
  47 extern Mutex*   JvmtiThreadState_lock;           // a lock on modification of JVMTI thread data
  48 extern Monitor* Heap_lock;                       // a lock on the heap
  49 extern Mutex*   ExpandHeap_lock;                 // a lock on expanding the heap
  50 extern Mutex*   AdapterHandlerLibrary_lock;      // a lock on the AdapterHandlerLibrary
  51 extern Mutex*   SignatureHandlerLibrary_lock;    // a lock on the SignatureHandlerLibrary
  52 extern Mutex*   VtableStubs_lock;                // a lock on the VtableStubs
  53 extern Mutex*   SymbolArena_lock;                // a lock on the symbol table arena
  54 extern Monitor* StringDedupQueue_lock;           // a lock on the string deduplication queue
  55 extern Mutex*   StringDedupTable_lock;           // a lock on the string deduplication table


  74                                                  // queue shared by
  75                                                  // non-Java threads.
  76 extern Mutex*   MarkStackFreeList_lock;          // Protects access to the global mark stack free list.
  77 extern Mutex*   MarkStackChunkList_lock;         // Protects access to the global mark stack chunk list.
  78 extern Mutex*   MonitoringSupport_lock;          // Protects updates to the serviceability memory pools.
  79 extern Mutex*   ParGCRareEvent_lock;             // Synchronizes various (rare) parallel GC ops.
  80 extern Mutex*   Compile_lock;                    // a lock held when Compilation is updating code (used to block CodeCache traversal, CHA updates, etc)
  81 extern Monitor* MethodCompileQueue_lock;         // a lock held when method compilations are enqueued, dequeued
  82 extern Monitor* CompileThread_lock;              // a lock held by compile threads during compilation system initialization
  83 extern Monitor* Compilation_lock;                // a lock used to pause compilation
  84 extern Mutex*   CompileTaskAlloc_lock;           // a lock held when CompileTasks are allocated
  85 extern Mutex*   CompileStatistics_lock;          // a lock held when updating compilation statistics
  86 extern Mutex*   DirectivesStack_lock;            // a lock held when mutating the dirstack and ref counting directives
  87 extern Mutex*   MultiArray_lock;                 // a lock used to guard allocation of multi-dim arrays
  88 extern Monitor* Terminator_lock;                 // a lock used to guard termination of the vm
  89 extern Monitor* InitCompleted_lock;              // a lock used to signal threads waiting on init completed
  90 extern Monitor* BeforeExit_lock;                 // a lock used to guard cleanups and shutdown hooks
  91 extern Monitor* Notify_lock;                     // a lock used to synchronize the start-up of the vm
  92 extern Mutex*   ProfilePrint_lock;               // a lock used to serialize the printing of profiles
  93 extern Mutex*   ExceptionCache_lock;             // a lock used to synchronize exception cache updates

  94 extern Mutex*   NMethodSweeperStats_lock;        // a lock used to serialize access to sweeper statistics
  95 
  96 #ifndef PRODUCT
  97 extern Mutex*   FullGCALot_lock;                 // a lock to make FullGCALot MT safe
  98 #endif // PRODUCT
  99 extern Mutex*   Debug1_lock;                     // A bunch of pre-allocated locks that can be used for tracing
 100 extern Mutex*   Debug2_lock;                     // down synchronization related bugs!
 101 extern Mutex*   Debug3_lock;
 102 
 103 extern Mutex*   RawMonitor_lock;
 104 extern Mutex*   PerfDataMemAlloc_lock;           // a lock on the allocator for PerfData memory for performance data
 105 extern Mutex*   PerfDataManager_lock;            // a long on access to PerfDataManager resources
 106 extern Mutex*   ParkerFreeList_lock;
 107 extern Mutex*   OopMapCacheAlloc_lock;           // protects allocation of oop_map caches
 108 
 109 extern Mutex*   FreeList_lock;                   // protects the free region list during safepoints
 110 extern Mutex*   OldSets_lock;                    // protects the old region sets
 111 extern Monitor* RootRegionScan_lock;             // used to notify that the CM threads have finished scanning the IM snapshot regions
 112 
 113 extern Mutex*   Management_lock;                 // a lock used to serialize JVM management


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