Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children | 63d374c54045 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef OS_WINDOWS_VM_OS_WINDOWS_HPP |
| 26 #define OS_WINDOWS_VM_OS_WINDOWS_HPP | |
| 27 | |
| 0 | 28 // Win32_OS defines the interface to windows operating systems |
| 29 | |
| 30 class win32 { | |
| 31 | |
| 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; | |
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40 static bool _is_windows_2003; |
| 0 | 41 |
| 42 public: | |
| 43 // Windows-specific interface: | |
| 44 static void initialize_system_info(); | |
| 45 static void setmode_streams(); | |
| 46 | |
| 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; } | |
| 56 | |
| 57 public: | |
| 58 // Generic interface: | |
| 59 | |
| 60 // Trace number of created threads | |
| 61 static intx _os_thread_limit; | |
| 62 static volatile intx _os_thread_count; | |
| 63 | |
| 64 // Tells whether the platform is NT or Windown95 | |
| 65 static bool is_nt() { return _is_nt; } | |
| 66 | |
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67 // Tells whether the platform is Windows 2003 |
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68 static bool is_windows_2003() { return _is_windows_2003; } |
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69 |
| 0 | 70 // Returns the byte size of a virtual memory page |
| 71 static int vm_page_size() { return _vm_page_size; } | |
| 72 | |
| 73 // Returns the size in bytes of memory blocks which can be allocated. | |
| 74 static int vm_allocation_granularity() { return _vm_allocation_granularity; } | |
| 75 | |
| 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); | |
| 79 | |
| 80 // Default stack size for the current process. | |
| 81 static size_t default_stack_size() { return _default_stack_size; } | |
| 82 | |
| 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 | |
| 87 | |
| 88 // filter function to ignore faults on serializations page | |
| 89 static LONG WINAPI serialize_fault_filter(struct _EXCEPTION_POINTERS* e); | |
| 90 }; | |
| 91 | |
| 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 ; | |
| 97 | |
| 98 public: // TODO-FIXME: make dtor private | |
| 99 ~PlatformEvent() { guarantee (0, "invariant") ; } | |
| 100 | |
| 101 public: | |
| 102 PlatformEvent() { | |
| 103 _Event = 0 ; | |
| 104 _ParkHandle = CreateEvent (NULL, false, false, NULL) ; | |
| 105 guarantee (_ParkHandle != NULL, "invariant") ; | |
| 106 } | |
| 107 | |
| 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 } ; | |
| 115 | |
| 116 | |
| 117 | |
| 118 class PlatformParker : public CHeapObj { | |
| 119 protected: | |
| 120 HANDLE _ParkEvent ; | |
| 121 | |
| 122 public: | |
| 123 ~PlatformParker () { guarantee (0, "invariant") ; } | |
| 124 PlatformParker () { | |
| 125 _ParkEvent = CreateEvent (NULL, true, false, NULL) ; | |
| 126 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 127 } | |
| 128 | |
| 129 } ; | |
| 1972 | 130 |
| 131 #endif // OS_WINDOWS_VM_OS_WINDOWS_HPP |