author | rbackman |
Wed, 17 Jul 2013 13:48:15 +0200 | |
changeset 18943 | 7d0ef675e808 |
parent 18683 | a6418e038255 |
child 22852 | 1063026e8cee |
child 22891 | 1f5d1fff23fa |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#ifndef OS_WINDOWS_VM_OS_WINDOWS_HPP |
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#define OS_WINDOWS_VM_OS_WINDOWS_HPP |
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// Win32_OS defines the interface to windows operating systems |
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class win32 { |
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friend class os; |
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protected: |
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static int _vm_page_size; |
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static int _vm_allocation_granularity; |
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static int _processor_type; |
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static int _processor_level; |
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static julong _physical_memory; |
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static size_t _default_stack_size; |
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static bool _is_nt; |
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static bool _is_windows_2003; |
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static bool _is_windows_server; |
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static void print_windows_version(outputStream* st); |
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public: |
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// Windows-specific interface: |
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static void initialize_system_info(); |
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static void setmode_streams(); |
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// Processor info as provided by NT |
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static int processor_type() { return _processor_type; } |
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// Processor level may not be accurate on non-NT systems |
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static int processor_level() { |
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assert(is_nt(), "use vm_version instead"); |
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return _processor_level; |
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} |
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static julong available_memory(); |
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static julong physical_memory() { return _physical_memory; } |
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// load dll from Windows system directory or Windows directory |
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static HINSTANCE load_Windows_dll(const char* name, char *ebuf, int ebuflen); |
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public: |
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// Generic interface: |
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// Trace number of created threads |
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static intx _os_thread_limit; |
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static volatile intx _os_thread_count; |
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// Tells whether the platform is NT or Windown95 |
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static bool is_nt() { return _is_nt; } |
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// Tells whether this is a server version of Windows |
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static bool is_windows_server() { return _is_windows_server; } |
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// Tells whether the platform is Windows 2003 |
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static bool is_windows_2003() { return _is_windows_2003; } |
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// Returns the byte size of a virtual memory page |
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static int vm_page_size() { return _vm_page_size; } |
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// Returns the size in bytes of memory blocks which can be allocated. |
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static int vm_allocation_granularity() { return _vm_allocation_granularity; } |
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// Read the headers for the executable that started the current process into |
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// the structure passed in (see winnt.h). |
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static void read_executable_headers(PIMAGE_NT_HEADERS); |
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// Default stack size for the current process. |
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static size_t default_stack_size() { return _default_stack_size; } |
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#ifndef _WIN64 |
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// A wrapper to install a structured exception handler for fast JNI accesors. |
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static address fast_jni_accessor_wrapper(BasicType); |
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#endif |
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#ifndef PRODUCT |
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static void call_test_func_with_wrapper(void (*funcPtr)(void)); |
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#endif |
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// filter function to ignore faults on serializations page |
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static LONG WINAPI serialize_fault_filter(struct _EXCEPTION_POINTERS* e); |
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}; |
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/* |
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* Crash protection for the watcher thread. Wrap the callback |
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* with a __try { call() } |
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* To be able to use this - don't take locks, don't rely on destructors, |
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* don't make OS library calls, don't allocate memory, don't print, |
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* don't call code that could leave the heap / memory in an inconsistent state, |
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* or anything else where we are not in control if we suddenly jump out. |
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*/ |
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class WatcherThreadCrashProtection : public StackObj { |
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public: |
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WatcherThreadCrashProtection(); |
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bool call(os::CrashProtectionCallback& cb); |
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}; |
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class PlatformEvent : public CHeapObj<mtInternal> { |
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private: |
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double CachePad [4] ; // increase odds that _Event is sole occupant of cache line |
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volatile int _Event ; |
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HANDLE _ParkHandle ; |
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public: // TODO-FIXME: make dtor private |
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~PlatformEvent() { guarantee (0, "invariant") ; } |
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public: |
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PlatformEvent() { |
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_Event = 0 ; |
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_ParkHandle = CreateEvent (NULL, false, false, NULL) ; |
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guarantee (_ParkHandle != NULL, "invariant") ; |
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} |
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// Exercise caution using reset() and fired() - they may require MEMBARs |
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void reset() { _Event = 0 ; } |
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int fired() { return _Event; } |
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void park () ; |
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void unpark () ; |
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int park (jlong millis) ; |
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} ; |
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class PlatformParker : public CHeapObj<mtInternal> { |
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protected: |
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HANDLE _ParkEvent ; |
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public: |
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~PlatformParker () { guarantee (0, "invariant") ; } |
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PlatformParker () { |
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_ParkEvent = CreateEvent (NULL, true, false, NULL) ; |
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guarantee (_ParkEvent != NULL, "invariant") ; |
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} |
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} ; |
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// JDK7 requires VS2010 |
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#if _MSC_VER < 1600 |
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#define JDK6_OR_EARLIER 1 |
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#endif |
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class WinSock2Dll: AllStatic { |
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public: |
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static BOOL WSAStartup(WORD, LPWSADATA); |
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static struct hostent* gethostbyname(const char *name); |
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static BOOL WinSock2Available(); |
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#ifdef JDK6_OR_EARLIER |
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private: |
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static int (PASCAL FAR* _WSAStartup)(WORD, LPWSADATA); |
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static struct hostent *(PASCAL FAR *_gethostbyname)(...); |
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static BOOL initialized; |
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static void initialize(); |
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#endif |
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}; |
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class Kernel32Dll: AllStatic { |
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public: |
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static BOOL SwitchToThread(); |
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static SIZE_T GetLargePageMinimum(); |
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static BOOL SwitchToThreadAvailable(); |
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static BOOL GetLargePageMinimumAvailable(); |
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// Help tools |
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static BOOL HelpToolsAvailable(); |
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static HANDLE CreateToolhelp32Snapshot(DWORD,DWORD); |
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static BOOL Module32First(HANDLE,LPMODULEENTRY32); |
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static BOOL Module32Next(HANDLE,LPMODULEENTRY32); |
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static BOOL GetNativeSystemInfoAvailable(); |
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static void GetNativeSystemInfo(LPSYSTEM_INFO); |
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// NUMA calls |
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static BOOL NumaCallsAvailable(); |
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static LPVOID VirtualAllocExNuma(HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
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static BOOL GetNumaHighestNodeNumber(PULONG); |
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static BOOL GetNumaNodeProcessorMask(UCHAR, PULONGLONG); |
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// Stack walking |
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static USHORT RtlCaptureStackBackTrace(ULONG, ULONG, PVOID*, PULONG); |
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private: |
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// GetLargePageMinimum available on Windows Vista/Windows Server 2003 |
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// and later |
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// NUMA calls available Windows Vista/WS2008 and later |
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static SIZE_T (WINAPI *_GetLargePageMinimum)(void); |
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static LPVOID (WINAPI *_VirtualAllocExNuma) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
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static BOOL (WINAPI *_GetNumaHighestNodeNumber) (PULONG); |
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static BOOL (WINAPI *_GetNumaNodeProcessorMask) (UCHAR, PULONGLONG); |
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static USHORT (WINAPI *_RtlCaptureStackBackTrace)(ULONG, ULONG, PVOID*, PULONG); |
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static BOOL initialized; |
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static void initialize(); |
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static void initializeCommon(); |
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#ifdef JDK6_OR_EARLIER |
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private: |
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static BOOL (WINAPI *_SwitchToThread)(void); |
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static HANDLE (WINAPI* _CreateToolhelp32Snapshot)(DWORD,DWORD); |
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static BOOL (WINAPI* _Module32First)(HANDLE,LPMODULEENTRY32); |
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static BOOL (WINAPI* _Module32Next)(HANDLE,LPMODULEENTRY32); |
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static void (WINAPI *_GetNativeSystemInfo)(LPSYSTEM_INFO); |
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#endif |
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}; |
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class Advapi32Dll: AllStatic { |
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public: |
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static BOOL AdjustTokenPrivileges(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
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static BOOL OpenProcessToken(HANDLE, DWORD, PHANDLE); |
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static BOOL LookupPrivilegeValue(LPCTSTR, LPCTSTR, PLUID); |
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static BOOL AdvapiAvailable(); |
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#ifdef JDK6_OR_EARLIER |
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private: |
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static BOOL (WINAPI *_AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
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static BOOL (WINAPI *_OpenProcessToken)(HANDLE, DWORD, PHANDLE); |
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static BOOL (WINAPI *_LookupPrivilegeValue)(LPCTSTR, LPCTSTR, PLUID); |
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static BOOL initialized; |
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static void initialize(); |
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#endif |
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}; |
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class PSApiDll: AllStatic { |
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public: |
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static BOOL EnumProcessModules(HANDLE, HMODULE *, DWORD, LPDWORD); |
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static DWORD GetModuleFileNameEx(HANDLE, HMODULE, LPTSTR, DWORD); |
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static BOOL GetModuleInformation(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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static BOOL PSApiAvailable(); |
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#ifdef JDK6_OR_EARLIER |
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private: |
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static BOOL (WINAPI *_EnumProcessModules)(HANDLE, HMODULE *, DWORD, LPDWORD); |
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static BOOL (WINAPI *_GetModuleFileNameEx)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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static BOOL (WINAPI *_GetModuleInformation)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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static BOOL initialized; |
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static void initialize(); |
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#endif |
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}; |
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#endif // OS_WINDOWS_VM_OS_WINDOWS_HPP |