Mon, 15 Dec 2008 16:55:11 -0800
6785258: Update copyright year
Summary: Update copyright for files that have been modified starting July 2008 to Dec 2008
Reviewed-by: katleman, ohair, tbell
duke@435 | 1 | /* |
xdono@905 | 2 | * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | // Win32_OS defines the interface to windows operating systems |
duke@435 | 26 | |
duke@435 | 27 | class win32 { |
duke@435 | 28 | |
duke@435 | 29 | protected: |
duke@435 | 30 | static int _vm_page_size; |
duke@435 | 31 | static int _vm_allocation_granularity; |
duke@435 | 32 | static int _processor_type; |
duke@435 | 33 | static int _processor_level; |
duke@435 | 34 | static julong _physical_memory; |
duke@435 | 35 | static size_t _default_stack_size; |
duke@435 | 36 | static bool _is_nt; |
jmasa@824 | 37 | static bool _is_windows_2003; |
duke@435 | 38 | |
duke@435 | 39 | public: |
duke@435 | 40 | // Windows-specific interface: |
duke@435 | 41 | static void initialize_system_info(); |
duke@435 | 42 | static void setmode_streams(); |
duke@435 | 43 | |
duke@435 | 44 | // Processor info as provided by NT |
duke@435 | 45 | static int processor_type() { return _processor_type; } |
duke@435 | 46 | // Processor level may not be accurate on non-NT systems |
duke@435 | 47 | static int processor_level() { |
duke@435 | 48 | assert(is_nt(), "use vm_version instead"); |
duke@435 | 49 | return _processor_level; |
duke@435 | 50 | } |
duke@435 | 51 | static julong available_memory(); |
duke@435 | 52 | static julong physical_memory() { return _physical_memory; } |
duke@435 | 53 | |
duke@435 | 54 | public: |
duke@435 | 55 | // Generic interface: |
duke@435 | 56 | |
duke@435 | 57 | // Trace number of created threads |
duke@435 | 58 | static intx _os_thread_limit; |
duke@435 | 59 | static volatile intx _os_thread_count; |
duke@435 | 60 | |
duke@435 | 61 | // Tells whether the platform is NT or Windown95 |
duke@435 | 62 | static bool is_nt() { return _is_nt; } |
duke@435 | 63 | |
jmasa@824 | 64 | // Tells whether the platform is Windows 2003 |
jmasa@824 | 65 | static bool is_windows_2003() { return _is_windows_2003; } |
jmasa@824 | 66 | |
duke@435 | 67 | // Returns the byte size of a virtual memory page |
duke@435 | 68 | static int vm_page_size() { return _vm_page_size; } |
duke@435 | 69 | |
duke@435 | 70 | // Returns the size in bytes of memory blocks which can be allocated. |
duke@435 | 71 | static int vm_allocation_granularity() { return _vm_allocation_granularity; } |
duke@435 | 72 | |
duke@435 | 73 | // Read the headers for the executable that started the current process into |
duke@435 | 74 | // the structure passed in (see winnt.h). |
duke@435 | 75 | static void read_executable_headers(PIMAGE_NT_HEADERS); |
duke@435 | 76 | |
duke@435 | 77 | // Default stack size for the current process. |
duke@435 | 78 | static size_t default_stack_size() { return _default_stack_size; } |
duke@435 | 79 | |
duke@435 | 80 | #ifndef _WIN64 |
duke@435 | 81 | // A wrapper to install a structured exception handler for fast JNI accesors. |
duke@435 | 82 | static address fast_jni_accessor_wrapper(BasicType); |
duke@435 | 83 | #endif |
duke@435 | 84 | |
duke@435 | 85 | // filter function to ignore faults on serializations page |
duke@435 | 86 | static LONG WINAPI serialize_fault_filter(struct _EXCEPTION_POINTERS* e); |
duke@435 | 87 | }; |
duke@435 | 88 | |
duke@435 | 89 | class PlatformEvent : public CHeapObj { |
duke@435 | 90 | private: |
duke@435 | 91 | double CachePad [4] ; // increase odds that _Event is sole occupant of cache line |
duke@435 | 92 | volatile int _Event ; |
duke@435 | 93 | HANDLE _ParkHandle ; |
duke@435 | 94 | |
duke@435 | 95 | public: // TODO-FIXME: make dtor private |
duke@435 | 96 | ~PlatformEvent() { guarantee (0, "invariant") ; } |
duke@435 | 97 | |
duke@435 | 98 | public: |
duke@435 | 99 | PlatformEvent() { |
duke@435 | 100 | _Event = 0 ; |
duke@435 | 101 | _ParkHandle = CreateEvent (NULL, false, false, NULL) ; |
duke@435 | 102 | guarantee (_ParkHandle != NULL, "invariant") ; |
duke@435 | 103 | } |
duke@435 | 104 | |
duke@435 | 105 | // Exercise caution using reset() and fired() - they may require MEMBARs |
duke@435 | 106 | void reset() { _Event = 0 ; } |
duke@435 | 107 | int fired() { return _Event; } |
duke@435 | 108 | void park () ; |
duke@435 | 109 | void unpark () ; |
duke@435 | 110 | int park (jlong millis) ; |
duke@435 | 111 | } ; |
duke@435 | 112 | |
duke@435 | 113 | |
duke@435 | 114 | |
duke@435 | 115 | class PlatformParker : public CHeapObj { |
duke@435 | 116 | protected: |
duke@435 | 117 | HANDLE _ParkEvent ; |
duke@435 | 118 | |
duke@435 | 119 | public: |
duke@435 | 120 | ~PlatformParker () { guarantee (0, "invariant") ; } |
duke@435 | 121 | PlatformParker () { |
duke@435 | 122 | _ParkEvent = CreateEvent (NULL, true, false, NULL) ; |
duke@435 | 123 | guarantee (_ParkEvent != NULL, "invariant") ; |
duke@435 | 124 | } |
duke@435 | 125 | |
duke@435 | 126 | } ; |