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annotate src/os/windows/vm/os_windows.hpp @ 14475:6c9332549827

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6546236: Thread interrupt() of Thread.sleep() can be lost on Solaris due to race with signal handler Reviewed-by: dholmes, dcubed
author fparain
date Wed, 19 Feb 2014 16:22:15 +0000
parents 5e3b6f79d280
children bb9356ec5967
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1 /*
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2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 *
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23 */
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24
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25 #ifndef OS_WINDOWS_VM_OS_WINDOWS_HPP
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26 #define OS_WINDOWS_VM_OS_WINDOWS_HPP
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27 // Win32_OS defines the interface to windows operating systems
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28
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29 class win32 {
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30 friend class os;
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31
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32 protected:
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33 static int _vm_page_size;
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34 static int _vm_allocation_granularity;
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35 static int _processor_type;
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36 static int _processor_level;
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37 static julong _physical_memory;
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38 static size_t _default_stack_size;
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39 static bool _is_nt;
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40 static bool _is_windows_2003;
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41 static bool _is_windows_server;
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42 static bool _has_performance_count;
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43
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44 static void print_windows_version(outputStream* st);
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45
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46 public:
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47 // Windows-specific interface:
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48 static void initialize_system_info();
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49 static void setmode_streams();
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50
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51 // Processor info as provided by NT
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52 static int processor_type() { return _processor_type; }
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53 // Processor level may not be accurate on non-NT systems
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54 static int processor_level() {
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55 assert(is_nt(), "use vm_version instead");
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56 return _processor_level;
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57 }
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58 static julong available_memory();
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59 static julong physical_memory() { return _physical_memory; }
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60
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61 // load dll from Windows system directory or Windows directory
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62 static HINSTANCE load_Windows_dll(const char* name, char *ebuf, int ebuflen);
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63
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64 private:
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65 static void initialize_performance_counter();
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66
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67 public:
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68 // Generic interface:
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69
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70 // Trace number of created threads
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71 static intx _os_thread_limit;
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72 static volatile intx _os_thread_count;
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73
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74 // Tells whether the platform is NT or Windown95
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75 static bool is_nt() { return _is_nt; }
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76
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77 // Tells whether this is a server version of Windows
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78 static bool is_windows_server() { return _is_windows_server; }
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79
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80 // Tells whether the platform is Windows 2003
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81 static bool is_windows_2003() { return _is_windows_2003; }
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82
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83 // Returns the byte size of a virtual memory page
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84 static int vm_page_size() { return _vm_page_size; }
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85
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86 // Returns the size in bytes of memory blocks which can be allocated.
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87 static int vm_allocation_granularity() { return _vm_allocation_granularity; }
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88
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89 // Read the headers for the executable that started the current process into
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90 // the structure passed in (see winnt.h).
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91 static void read_executable_headers(PIMAGE_NT_HEADERS);
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92
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93 // Default stack size for the current process.
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94 static size_t default_stack_size() { return _default_stack_size; }
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95
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96 #ifndef _WIN64
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97 // A wrapper to install a structured exception handler for fast JNI accesors.
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98 static address fast_jni_accessor_wrapper(BasicType);
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99 #endif
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100
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101 #ifndef PRODUCT
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102 static void call_test_func_with_wrapper(void (*funcPtr)(void));
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103 #endif
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104
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105 // filter function to ignore faults on serializations page
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106 static LONG WINAPI serialize_fault_filter(struct _EXCEPTION_POINTERS* e);
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107 };
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108
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109 /*
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110 * Crash protection for the watcher thread. Wrap the callback
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111 * with a __try { call() }
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112 * To be able to use this - don't take locks, don't rely on destructors,
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113 * don't make OS library calls, don't allocate memory, don't print,
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114 * don't call code that could leave the heap / memory in an inconsistent state,
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115 * or anything else where we are not in control if we suddenly jump out.
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116 */
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117 class WatcherThreadCrashProtection : public StackObj {
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118 public:
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119 WatcherThreadCrashProtection();
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120 bool call(os::CrashProtectionCallback& cb);
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121 };
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122
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123 class PlatformEvent : public CHeapObj<mtInternal> {
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124 private:
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125 double CachePad [4] ; // increase odds that _Event is sole occupant of cache line
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126 volatile int _Event ;
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127 HANDLE _ParkHandle ;
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128
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129 public: // TODO-FIXME: make dtor private
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130 ~PlatformEvent() { guarantee (0, "invariant") ; }
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131
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132 public:
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133 PlatformEvent() {
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134 _Event = 0 ;
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135 _ParkHandle = CreateEvent (NULL, false, false, NULL) ;
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136 guarantee (_ParkHandle != NULL, "invariant") ;
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137 }
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138
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139 // Exercise caution using reset() and fired() - they may require MEMBARs
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140 void reset() { _Event = 0 ; }
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141 int fired() { return _Event; }
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142 void park () ;
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143 void unpark () ;
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144 int park (jlong millis) ;
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145 } ;
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146
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147
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148
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149 class PlatformParker : public CHeapObj<mtInternal> {
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150 protected:
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151 HANDLE _ParkEvent ;
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152
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153 public:
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154 ~PlatformParker () { guarantee (0, "invariant") ; }
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155 PlatformParker () {
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156 _ParkEvent = CreateEvent (NULL, true, false, NULL) ;
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157 guarantee (_ParkEvent != NULL, "invariant") ;
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158 }
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159
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160 } ;
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161
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162 // JDK7 requires VS2010
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163 #if _MSC_VER < 1600
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164 #define JDK6_OR_EARLIER 1
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165 #endif
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166
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167
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168
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169 class WinSock2Dll: AllStatic {
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170 public:
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171 static BOOL WSAStartup(WORD, LPWSADATA);
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172 static struct hostent* gethostbyname(const char *name);
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173 static BOOL WinSock2Available();
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174 #ifdef JDK6_OR_EARLIER
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175 private:
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176 static int (PASCAL FAR* _WSAStartup)(WORD, LPWSADATA);
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177 static struct hostent *(PASCAL FAR *_gethostbyname)(...);
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178 static BOOL initialized;
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179
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180 static void initialize();
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181 #endif
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182 };
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183
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184 class Kernel32Dll: AllStatic {
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185 public:
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186 static BOOL SwitchToThread();
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187 static SIZE_T GetLargePageMinimum();
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188
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189 static BOOL SwitchToThreadAvailable();
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190 static BOOL GetLargePageMinimumAvailable();
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191
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192 // Help tools
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193 static BOOL HelpToolsAvailable();
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194 static HANDLE CreateToolhelp32Snapshot(DWORD,DWORD);
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195 static BOOL Module32First(HANDLE,LPMODULEENTRY32);
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196 static BOOL Module32Next(HANDLE,LPMODULEENTRY32);
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197
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198 static BOOL GetNativeSystemInfoAvailable();
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199 static void GetNativeSystemInfo(LPSYSTEM_INFO);
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200
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201 // NUMA calls
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202 static BOOL NumaCallsAvailable();
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203 static LPVOID VirtualAllocExNuma(HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD);
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204 static BOOL GetNumaHighestNodeNumber(PULONG);
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205 static BOOL GetNumaNodeProcessorMask(UCHAR, PULONGLONG);
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206
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207 // Stack walking
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208 static USHORT RtlCaptureStackBackTrace(ULONG, ULONG, PVOID*, PULONG);
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209
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210 private:
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211 // GetLargePageMinimum available on Windows Vista/Windows Server 2003
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212 // and later
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213 // NUMA calls available Windows Vista/WS2008 and later
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214
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215 static SIZE_T (WINAPI *_GetLargePageMinimum)(void);
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216 static LPVOID (WINAPI *_VirtualAllocExNuma) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD);
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217 static BOOL (WINAPI *_GetNumaHighestNodeNumber) (PULONG);
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218 static BOOL (WINAPI *_GetNumaNodeProcessorMask) (UCHAR, PULONGLONG);
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219 static USHORT (WINAPI *_RtlCaptureStackBackTrace)(ULONG, ULONG, PVOID*, PULONG);
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220 static BOOL initialized;
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221
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222 static void initialize();
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223 static void initializeCommon();
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224
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225 #ifdef JDK6_OR_EARLIER
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226 private:
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227 static BOOL (WINAPI *_SwitchToThread)(void);
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228 static HANDLE (WINAPI* _CreateToolhelp32Snapshot)(DWORD,DWORD);
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229 static BOOL (WINAPI* _Module32First)(HANDLE,LPMODULEENTRY32);
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230 static BOOL (WINAPI* _Module32Next)(HANDLE,LPMODULEENTRY32);
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231 static void (WINAPI *_GetNativeSystemInfo)(LPSYSTEM_INFO);
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232 #endif
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233
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234 };
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235
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236 class Advapi32Dll: AllStatic {
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237 public:
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238 static BOOL AdjustTokenPrivileges(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD);
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239 static BOOL OpenProcessToken(HANDLE, DWORD, PHANDLE);
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240 static BOOL LookupPrivilegeValue(LPCTSTR, LPCTSTR, PLUID);
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241
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242 static BOOL AdvapiAvailable();
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243
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244 #ifdef JDK6_OR_EARLIER
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245 private:
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246 static BOOL (WINAPI *_AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD);
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247 static BOOL (WINAPI *_OpenProcessToken)(HANDLE, DWORD, PHANDLE);
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248 static BOOL (WINAPI *_LookupPrivilegeValue)(LPCTSTR, LPCTSTR, PLUID);
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249 static BOOL initialized;
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250
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251 static void initialize();
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252 #endif
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253 };
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254
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255 class PSApiDll: AllStatic {
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256 public:
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257 static BOOL EnumProcessModules(HANDLE, HMODULE *, DWORD, LPDWORD);
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258 static DWORD GetModuleFileNameEx(HANDLE, HMODULE, LPTSTR, DWORD);
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259 static BOOL GetModuleInformation(HANDLE, HMODULE, LPMODULEINFO, DWORD);
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260
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261 static BOOL PSApiAvailable();
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262
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263 #ifdef JDK6_OR_EARLIER
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264 private:
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265 static BOOL (WINAPI *_EnumProcessModules)(HANDLE, HMODULE *, DWORD, LPDWORD);
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266 static BOOL (WINAPI *_GetModuleFileNameEx)(HANDLE, HMODULE, LPTSTR, DWORD);;
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267 static BOOL (WINAPI *_GetModuleInformation)(HANDLE, HMODULE, LPMODULEINFO, DWORD);
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268 static BOOL initialized;
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269
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270 static void initialize();
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271 #endif
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272 };
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273
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274 #endif // OS_WINDOWS_VM_OS_WINDOWS_HPP