osThread_windows.hpp revision 3274:0105f367a14c 
1/*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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23 */
24
25#ifndef OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
26#define OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
27
28typedef void* HANDLE;
29
30 private:
31  // Win32-specific thread information
32  HANDLE _thread_handle;        // Win32 thread handle
33  unsigned long _thread_id;     // Win32 thread id
34  HANDLE _interrupt_event;      // Event signalled on thread interrupt
35  ThreadState _last_state;
36
37 public:
38  // The following will only apply in the Win32 implementation, and should only
39  // be visible in the concrete class, not this which should be an abstract base class
40  HANDLE thread_handle() const                     { return _thread_handle; }
41  void set_thread_handle(HANDLE handle)            { _thread_handle = handle; }
42  HANDLE interrupt_event() const                   { return _interrupt_event; }
43  void set_interrupt_event(HANDLE interrupt_event) { _interrupt_event = interrupt_event; }
44
45
46  static size_t thread_id_size()                   { return sizeof(unsigned long); }
47  unsigned long thread_id() const                  { return _thread_id; }
48#ifndef PRODUCT
49  // Used for debugging, return a unique integer for each thread.
50  int thread_identifier() const                    { return _thread_id; }
51#endif
52#ifdef ASSERT
53  // We expect no reposition failures so kill vm if we get one
54  //
55  bool valid_reposition_failure() {
56    return false;
57  }
58#endif // ASSERT
59  void set_thread_id(unsigned long thread_id)      { _thread_id = thread_id; }
60
61  bool is_try_mutex_enter()                        { return false; }
62
63  // This is a temporary fix for the thread states during
64  // suspend/resume until we throw away OSThread completely.
65  // NEEDS_CLEANUP
66  void set_last_state(ThreadState state)           { _last_state = state; }
67  ThreadState get_last_state()                     { return _last_state; }
68
69 private:
70  void pd_initialize();
71  void pd_destroy();
72
73#endif // OS_WINDOWS_VM_OSTHREAD_WINDOWS_HPP
74