10 hFactorDll = GetModuleHandle(FACTOR_DLL);
12 fatal_error("GetModuleHandle(\"" FACTOR_DLL_NAME "\") failed", 0);
15 void ffi_dlopen(F_DLL *dll)
17 dll->dll = LoadLibraryEx(alien_offset(dll->path), NULL, 0);
20 void *ffi_dlsym(F_DLL *dll, F_SYMBOL *symbol)
22 return GetProcAddress(dll ? (HMODULE)dll->dll : hFactorDll, symbol);
25 void ffi_dlclose(F_DLL *dll)
27 FreeLibrary((HMODULE)dll->dll);
31 bool windows_stat(F_CHAR *path)
33 BY_HANDLE_FILE_INFORMATION bhfi;
34 HANDLE h = CreateFileW(path,
39 FILE_FLAG_BACKUP_SEMANTICS,
42 if(h == INVALID_HANDLE_VALUE)
44 // FindFirstFile is the only call that can stat c:\pagefile.sys
48 if(INVALID_HANDLE_VALUE == (h = FindFirstFile(path, &st)))
54 ret = GetFileInformationByHandle(h, &bhfi);
59 void windows_image_path(F_CHAR *full_path, F_CHAR *temp_path, unsigned int length)
61 snwprintf(temp_path, length-1, L"%s.image", full_path);
62 temp_path[sizeof(temp_path) - 1] = 0;
65 /* You must free() this yourself. */
66 const F_CHAR *default_image_path(void)
68 F_CHAR full_path[MAX_UNICODE_PATH];
70 F_CHAR temp_path[MAX_UNICODE_PATH];
72 if(!GetModuleFileName(NULL, full_path, MAX_UNICODE_PATH))
73 fatal_error("GetModuleFileName() failed", 0);
75 if((ptr = wcsrchr(full_path, '.')))
78 snwprintf(temp_path, sizeof(temp_path)-1, L"%s.image", full_path);
79 temp_path[sizeof(temp_path) - 1] = 0;
81 return safe_strdup(temp_path);
84 /* You must free() this yourself. */
85 const F_CHAR *vm_executable_path(void)
87 F_CHAR full_path[MAX_UNICODE_PATH];
88 if(!GetModuleFileName(NULL, full_path, MAX_UNICODE_PATH))
89 fatal_error("GetModuleFileName() failed", 0);
90 return safe_strdup(full_path);
96 F_CHAR *path = (F_CHAR *)(untag_check<F_BYTE_ARRAY>(dpop()) + 1);
97 box_boolean(windows_stat(path));
100 F_SEGMENT *alloc_segment(CELL size)
105 if((mem = (char *)VirtualAlloc(NULL, getpagesize() * 2 + size,
106 MEM_COMMIT, PAGE_EXECUTE_READWRITE)) == 0)
109 if (!VirtualProtect(mem, getpagesize(), PAGE_NOACCESS, &ignore))
110 fatal_error("Cannot allocate low guard page", (CELL)mem);
112 if (!VirtualProtect(mem + size + getpagesize(),
113 getpagesize(), PAGE_NOACCESS, &ignore))
114 fatal_error("Cannot allocate high guard page", (CELL)mem);
116 F_SEGMENT *block = safe_malloc(sizeof(F_SEGMENT));
118 block->start = (CELL)mem + getpagesize();
120 block->end = block->start + size;
125 void dealloc_segment(F_SEGMENT *block)
129 if(!VirtualFree((void*)(block->start - si.dwPageSize), 0, MEM_RELEASE))
130 fatal_error("dealloc_segment failed",0);
134 long getpagesize(void)
136 static long g_pagesize = 0;
139 SYSTEM_INFO system_info;
140 GetSystemInfo (&system_info);
141 g_pagesize = system_info.dwPageSize;
146 void sleep_micros(u64 usec)
148 Sleep((DWORD)(usec / 1000));