Tue, 23 Nov 2010 13:22:55 -0800
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
1 /*
2 * Copyright (c) 1997, 2010, 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.
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 */
25 #ifndef OS_WINDOWS_VM_OS_WINDOWS_HPP
26 #define OS_WINDOWS_VM_OS_WINDOWS_HPP
28 // Win32_OS defines the interface to windows operating systems
30 class win32 {
32 protected:
33 static int _vm_page_size;
34 static int _vm_allocation_granularity;
35 static int _processor_type;
36 static int _processor_level;
37 static julong _physical_memory;
38 static size_t _default_stack_size;
39 static bool _is_nt;
40 static bool _is_windows_2003;
42 public:
43 // Windows-specific interface:
44 static void initialize_system_info();
45 static void setmode_streams();
47 // Processor info as provided by NT
48 static int processor_type() { return _processor_type; }
49 // Processor level may not be accurate on non-NT systems
50 static int processor_level() {
51 assert(is_nt(), "use vm_version instead");
52 return _processor_level;
53 }
54 static julong available_memory();
55 static julong physical_memory() { return _physical_memory; }
57 public:
58 // Generic interface:
60 // Trace number of created threads
61 static intx _os_thread_limit;
62 static volatile intx _os_thread_count;
64 // Tells whether the platform is NT or Windown95
65 static bool is_nt() { return _is_nt; }
67 // Tells whether the platform is Windows 2003
68 static bool is_windows_2003() { return _is_windows_2003; }
70 // Returns the byte size of a virtual memory page
71 static int vm_page_size() { return _vm_page_size; }
73 // Returns the size in bytes of memory blocks which can be allocated.
74 static int vm_allocation_granularity() { return _vm_allocation_granularity; }
76 // Read the headers for the executable that started the current process into
77 // the structure passed in (see winnt.h).
78 static void read_executable_headers(PIMAGE_NT_HEADERS);
80 // Default stack size for the current process.
81 static size_t default_stack_size() { return _default_stack_size; }
83 #ifndef _WIN64
84 // A wrapper to install a structured exception handler for fast JNI accesors.
85 static address fast_jni_accessor_wrapper(BasicType);
86 #endif
88 // filter function to ignore faults on serializations page
89 static LONG WINAPI serialize_fault_filter(struct _EXCEPTION_POINTERS* e);
90 };
92 class PlatformEvent : public CHeapObj {
93 private:
94 double CachePad [4] ; // increase odds that _Event is sole occupant of cache line
95 volatile int _Event ;
96 HANDLE _ParkHandle ;
98 public: // TODO-FIXME: make dtor private
99 ~PlatformEvent() { guarantee (0, "invariant") ; }
101 public:
102 PlatformEvent() {
103 _Event = 0 ;
104 _ParkHandle = CreateEvent (NULL, false, false, NULL) ;
105 guarantee (_ParkHandle != NULL, "invariant") ;
106 }
108 // Exercise caution using reset() and fired() - they may require MEMBARs
109 void reset() { _Event = 0 ; }
110 int fired() { return _Event; }
111 void park () ;
112 void unpark () ;
113 int park (jlong millis) ;
114 } ;
118 class PlatformParker : public CHeapObj {
119 protected:
120 HANDLE _ParkEvent ;
122 public:
123 ~PlatformParker () { guarantee (0, "invariant") ; }
124 PlatformParker () {
125 _ParkEvent = CreateEvent (NULL, true, false, NULL) ;
126 guarantee (_ParkEvent != NULL, "invariant") ;
127 }
129 } ;
131 #endif // OS_WINDOWS_VM_OS_WINDOWS_HPP