projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 5e9f2524 VS |
1 | /* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd |
| 2 | See the file COPYING for copying permission. | |
| 3 | */ | |
| 4 | ||
| 5 | #define STRICT 1 | |
| 6 | #define WIN32_LEAN_AND_MEAN 1 | |
| 7 | ||
| 8 | #ifdef XML_UNICODE_WCHAR_T | |
| 9 | #ifndef XML_UNICODE | |
| 10 | #define XML_UNICODE | |
| 11 | #endif | |
| 12 | #endif | |
| 13 | ||
| 14 | #ifdef XML_UNICODE | |
| 15 | #define UNICODE | |
| 16 | #define _UNICODE | |
| 17 | #endif /* XML_UNICODE */ | |
| 18 | #include <windows.h> | |
| 19 | #include <stdio.h> | |
| 20 | #include <tchar.h> | |
| 21 | #include "filemap.h" | |
| 22 | ||
| 23 | static void win32perror(const TCHAR *); | |
| 24 | ||
| 25 | int | |
| 26 | filemap(const TCHAR *name, | |
| 27 | void (*processor)(const void *, size_t, const TCHAR *, void *arg), | |
| 28 | void *arg) | |
| 29 | { | |
| 30 | HANDLE f; | |
| 31 | HANDLE m; | |
| 32 | DWORD size; | |
| 33 | DWORD sizeHi; | |
| 34 | void *p; | |
| 35 | ||
| 36 | f = CreateFile(name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, | |
| 37 | FILE_FLAG_SEQUENTIAL_SCAN, NULL); | |
| 38 | if (f == INVALID_HANDLE_VALUE) { | |
| 39 | win32perror(name); | |
| 40 | return 0; | |
| 41 | } | |
| 42 | size = GetFileSize(f, &sizeHi); | |
| 43 | if (size == (DWORD)-1) { | |
| 44 | win32perror(name); | |
| 45 | return 0; | |
| 46 | } | |
| 47 | if (sizeHi) { | |
| 48 | _ftprintf(stderr, _T("%s: bigger than 2Gb\n"), name); | |
| 49 | return 0; | |
| 50 | } | |
| 51 | /* CreateFileMapping barfs on zero length files */ | |
| 52 | if (size == 0) { | |
| 53 | static const char c = '\0'; | |
| 54 | processor(&c, 0, name, arg); | |
| 55 | CloseHandle(f); | |
| 56 | return 1; | |
| 57 | } | |
| 58 | m = CreateFileMapping(f, NULL, PAGE_READONLY, 0, 0, NULL); | |
| 59 | if (m == NULL) { | |
| 60 | win32perror(name); | |
| 61 | CloseHandle(f); | |
| 62 | return 0; | |
| 63 | } | |
| 64 | p = MapViewOfFile(m, FILE_MAP_READ, 0, 0, 0); | |
| 65 | if (p == NULL) { | |
| 66 | win32perror(name); | |
| 67 | CloseHandle(m); | |
| 68 | CloseHandle(f); | |
| 69 | return 0; | |
| 70 | } | |
| 71 | processor(p, size, name, arg); | |
| 72 | UnmapViewOfFile(p); | |
| 73 | CloseHandle(m); | |
| 74 | CloseHandle(f); | |
| 75 | return 1; | |
| 76 | } | |
| 77 | ||
| 78 | static void | |
| 79 | win32perror(const TCHAR *s) | |
| 80 | { | |
| 81 | LPVOID buf; | |
| 82 | if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| 83 | | FORMAT_MESSAGE_FROM_SYSTEM, | |
| 84 | NULL, | |
| 85 | GetLastError(), | |
| 86 | MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | |
| 87 | (LPTSTR) &buf, | |
| 88 | 0, | |
| 89 | NULL)) { | |
| 90 | _ftprintf(stderr, _T("%s: %s"), s, buf); | |
| 91 | fflush(stderr); | |
| 92 | LocalFree(buf); | |
| 93 | } | |
| 94 | else | |
| 95 | _ftprintf(stderr, _T("%s: unknown Windows error\n"), s); | |
| 96 | } |