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