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src/hotspot/share/gc/shared/oopStorageSet.cpp

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rev 59956 : 8247819: G1: Process strong OopStorage entries in parallel
Reviewed-by:
Contributed-by: Erik Osterlund <erik.osterlund@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Thomas Schatzl <thomas.schatzl@oracle.com>


  32 #include "utilities/macros.hpp"
  33 
  34 // +1 for NULL singular entry.
  35 OopStorage* OopStorageSet::storages[all_count + 1] = {};
  36 
  37 static Mutex* make_oopstorage_mutex(const char* storage_name,
  38                                     const char* kind,
  39                                     int rank) {
  40   char name[256];
  41   os::snprintf(name, sizeof(name), "%s %s lock", storage_name, kind);
  42   return new PaddedMutex(rank, name, true, Mutex::_safepoint_check_never);
  43 }
  44 
  45 static OopStorage* make_oopstorage(const char* name) {
  46   Mutex* alloc = make_oopstorage_mutex(name, "alloc", Mutex::oopstorage);
  47   Mutex* active = make_oopstorage_mutex(name, "active", Mutex::oopstorage - 1);
  48   return new OopStorage(name, alloc, active);
  49 }
  50 
  51 void OopStorageSet::initialize() {
  52   storages[jni_global_index]        = make_oopstorage("JNI global");
  53   storages[vm_global_index]         = make_oopstorage("VM global");
  54   storages[jni_weak_index]          = make_oopstorage("JNI weak");
  55   storages[vm_weak_index]           = make_oopstorage("VM weak");
  56   storages[string_table_weak_index] = make_oopstorage("StringTable weak");
  57   storages[resolved_method_table_weak_index] =
  58     make_oopstorage("ResolvedMethodTable weak");
  59 
  60   // Ensure we have all of them.
  61   STATIC_ASSERT(all_count == 6);
  62   assert(storages[singular_index] == NULL, "postcondition");
  63 #ifdef ASSERT
  64   for (uint i = all_start; i < all_end; ++i) {
  65     assert(storages[i] != NULL, "postcondition");
  66   }
  67 #endif // ASSERT
  68 }
  69 
  70 void oopstorage_init() {
  71   OopStorageSet::initialize();
  72 }
  73 
  74 #ifdef ASSERT
  75 
  76 void OopStorageSet::verify_initialized(uint index) {
  77   assert(storages[index] != NULL, "oopstorage_init not yet called");
  78 }


  32 #include "utilities/macros.hpp"
  33 
  34 // +1 for NULL singular entry.
  35 OopStorage* OopStorageSet::storages[all_count + 1] = {};
  36 
  37 static Mutex* make_oopstorage_mutex(const char* storage_name,
  38                                     const char* kind,
  39                                     int rank) {
  40   char name[256];
  41   os::snprintf(name, sizeof(name), "%s %s lock", storage_name, kind);
  42   return new PaddedMutex(rank, name, true, Mutex::_safepoint_check_never);
  43 }
  44 
  45 static OopStorage* make_oopstorage(const char* name) {
  46   Mutex* alloc = make_oopstorage_mutex(name, "alloc", Mutex::oopstorage);
  47   Mutex* active = make_oopstorage_mutex(name, "active", Mutex::oopstorage - 1);
  48   return new OopStorage(name, alloc, active);
  49 }
  50 
  51 void OopStorageSet::initialize() {
  52   storages[jni_global_index]        = make_oopstorage("JNI Global");
  53   storages[vm_global_index]         = make_oopstorage("VM Global");
  54   storages[jni_weak_index]          = make_oopstorage("JNI Weak");
  55   storages[vm_weak_index]           = make_oopstorage("VM Weak");
  56   storages[string_table_weak_index] = make_oopstorage("StringTable Weak");
  57   storages[resolved_method_table_weak_index] =
  58     make_oopstorage("ResolvedMethodTable Weak");
  59 
  60   // Ensure we have all of them.
  61   STATIC_ASSERT(all_count == 6);
  62   assert(storages[singular_index] == NULL, "postcondition");
  63 #ifdef ASSERT
  64   for (uint i = all_start; i < all_end; ++i) {
  65     assert(storages[i] != NULL, "postcondition");
  66   }
  67 #endif // ASSERT
  68 }
  69 
  70 void oopstorage_init() {
  71   OopStorageSet::initialize();
  72 }
  73 
  74 #ifdef ASSERT
  75 
  76 void OopStorageSet::verify_initialized(uint index) {
  77   assert(storages[index] != NULL, "oopstorage_init not yet called");
  78 }
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