5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   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 "incls/_precompiled.incl"
  26 # include "incls/_vmThread.cpp.incl"






















  27 
  28 HS_DTRACE_PROBE_DECL3(hotspot, vmops__request, char *, uintptr_t, int);
  29 HS_DTRACE_PROBE_DECL3(hotspot, vmops__begin, char *, uintptr_t, int);
  30 HS_DTRACE_PROBE_DECL3(hotspot, vmops__end, char *, uintptr_t, int);
  31 
  32 // Dummy VM operation to act as first element in our circular double-linked list
  33 class VM_Dummy: public VM_Operation {
  34   VMOp_Type type() const { return VMOp_Dummy; }
  35   void  doit() {};
  36 };
  37 
  38 VMOperationQueue::VMOperationQueue() {
  39   // The queue is a circular doubled-linked list, which always contains
  40   // one element (i.e., one element means empty).
  41   for(int i = 0; i < nof_priorities; i++) {
  42     _queue_length[i] = 0;
  43     _queue_counter = 0;
  44     _queue[i] = new VM_Dummy();
  45     _queue[i]->set_next(_queue[i]);
  46     _queue[i]->set_prev(_queue[i]);

   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   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/compileBroker.hpp"
  27 #include "gc_interface/collectedHeap.hpp"
  28 #include "memory/resourceArea.hpp"
  29 #include "oops/methodOop.hpp"
  30 #include "oops/oop.inline.hpp"
  31 #include "runtime/interfaceSupport.hpp"
  32 #include "runtime/mutexLocker.hpp"
  33 #include "runtime/os.hpp"
  34 #include "runtime/vmThread.hpp"
  35 #include "runtime/vm_operations.hpp"
  36 #include "services/runtimeService.hpp"
  37 #include "utilities/dtrace.hpp"
  38 #include "utilities/events.hpp"
  39 #include "utilities/xmlstream.hpp"
  40 #ifdef TARGET_OS_FAMILY_linux
  41 # include "thread_linux.inline.hpp"
  42 #endif
  43 #ifdef TARGET_OS_FAMILY_solaris
  44 # include "thread_solaris.inline.hpp"
  45 #endif
  46 #ifdef TARGET_OS_FAMILY_windows
  47 # include "thread_windows.inline.hpp"
  48 #endif
  49 
  50 HS_DTRACE_PROBE_DECL3(hotspot, vmops__request, char *, uintptr_t, int);
  51 HS_DTRACE_PROBE_DECL3(hotspot, vmops__begin, char *, uintptr_t, int);
  52 HS_DTRACE_PROBE_DECL3(hotspot, vmops__end, char *, uintptr_t, int);
  53 
  54 // Dummy VM operation to act as first element in our circular double-linked list
  55 class VM_Dummy: public VM_Operation {
  56   VMOp_Type type() const { return VMOp_Dummy; }
  57   void  doit() {};
  58 };
  59 
  60 VMOperationQueue::VMOperationQueue() {
  61   // The queue is a circular doubled-linked list, which always contains
  62   // one element (i.e., one element means empty).
  63   for(int i = 0; i < nof_priorities; i++) {
  64     _queue_length[i] = 0;
  65     _queue_counter = 0;
  66     _queue[i] = new VM_Dummy();
  67     _queue[i]->set_next(_queue[i]);
  68     _queue[i]->set_prev(_queue[i]);