jdk8-mips64-public/hotspot: src/share/vm/memory/allocation.inline.hpp@3fadc0e8cffe (annotated)

src/share/vm/memory/allocation.inline.hpp@3fadc0e8cffe (annotated)

src/share/vm/memory/allocation.inline.hpp

Tue, 30 Oct 2012 10:23:55 -0700

author: jmasa
date: Tue, 30 Oct 2012 10:23:55 -0700
changeset 4234: 3fadc0e8cffe
parent 4183: 7b5885dadbdc
child 4675: 63e54c37ac64
permissions: -rw-r--r--

8000988: VM deadlock when running btree006 on windows-i586
Reviewed-by: johnc, jcoomes, ysr

 /*
  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
 #define SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
 #include "runtime/os.hpp"
 // Explicit C-heap memory management
 void trace_heap_malloc(size_t size, const char* name, void *p);
 void trace_heap_free(void *p);
 #ifndef PRODUCT
 // Increments unsigned long value for statistics (not atomic on MP).
 inline void inc_stat_counter(volatile julong* dest, julong add_value) {
 #if defined(SPARC) || defined(X86)
   // Sparc and X86 have atomic jlong (8 bytes) instructions
   julong value = Atomic::load((volatile jlong*)dest);
   value += add_value;
   Atomic::store((jlong)value, (volatile jlong*)dest);
 #else
   // possible word-tearing during load/store
   *dest += add_value;
 #endif
 }
 #endif
 // allocate using malloc; will fail if no memory available
 inline char* AllocateHeap(size_t size, MEMFLAGS flags, address pc = 0,
     AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) {
   if (pc == 0) {
     pc = CURRENT_PC;
   }
   char* p = (char*) os::malloc(size, flags, pc);
   #ifdef ASSERT
   if (PrintMallocFree) trace_heap_malloc(size, "AllocateHeap", p);
   #endif
   if (p == NULL && alloc_failmode == AllocFailStrategy::EXIT_OOM) vm_exit_out_of_memory(size, "AllocateHeap");
   return p;
 }
 inline char* ReallocateHeap(char *old, size_t size, MEMFLAGS flags,
     AllocFailType alloc_failmode = AllocFailStrategy::EXIT_OOM) {
   char* p = (char*) os::realloc(old, size, flags, CURRENT_PC);
   #ifdef ASSERT
   if (PrintMallocFree) trace_heap_malloc(size, "ReallocateHeap", p);
   #endif
   if (p == NULL && alloc_failmode == AllocFailStrategy::EXIT_OOM) vm_exit_out_of_memory(size, "ReallocateHeap");
   return p;
 }
 inline void FreeHeap(void* p, MEMFLAGS memflags = mtInternal) {
   #ifdef ASSERT
   if (PrintMallocFree) trace_heap_free(p);
   #endif
   os::free(p, memflags);
 }
 template <MEMFLAGS F> void* CHeapObj<F>::operator new(size_t size,
       address caller_pc){
 #ifdef ASSERT
     void* p = (void*)AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC));
     if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p);
     return p;
 #else
     return (void *) AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC));
 #endif
   }
 template <MEMFLAGS F> void* CHeapObj<F>::operator new (size_t size,
   const std::nothrow_t&  nothrow_constant, address caller_pc) {
 #ifdef ASSERT
   void* p = (void*)AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC),
       AllocFailStrategy::RETURN_NULL);
     if (PrintMallocFree) trace_heap_malloc(size, "CHeapObj-new", p);
     return p;
 #else
   return (void *) AllocateHeap(size, F, (caller_pc != 0 ? caller_pc : CALLER_PC),
       AllocFailStrategy::RETURN_NULL);
 #endif
 }
 template <MEMFLAGS F> void CHeapObj<F>::operator delete(void* p){
    FreeHeap(p, F);
 }
 #endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/memory/allocation.inline.hpp@3fadc0e8cffe (annotated)

src/share/vm/memory/allocation.inline.hpp