diff options
Diffstat (limited to 'lib/expat/xmlwf/win32filemap.c')
-rw-r--r-- | lib/expat/xmlwf/win32filemap.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/lib/expat/xmlwf/win32filemap.c b/lib/expat/xmlwf/win32filemap.c new file mode 100644 index 000000000..41dc35b61 --- /dev/null +++ b/lib/expat/xmlwf/win32filemap.c @@ -0,0 +1,96 @@ +/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd + See the file COPYING for copying permission. +*/ + +#define STRICT 1 +#define WIN32_LEAN_AND_MEAN 1 + +#ifdef XML_UNICODE_WCHAR_T +#ifndef XML_UNICODE +#define XML_UNICODE +#endif +#endif + +#ifdef XML_UNICODE +#define UNICODE +#define _UNICODE +#endif /* XML_UNICODE */ +#include <windows.h> +#include <stdio.h> +#include <tchar.h> +#include "filemap.h" + +static void win32perror(const TCHAR *); + +int +filemap(const TCHAR *name, + void (*processor)(const void *, size_t, const TCHAR *, void *arg), + void *arg) +{ + HANDLE f; + HANDLE m; + DWORD size; + DWORD sizeHi; + void *p; + + f = CreateFile(name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, + FILE_FLAG_SEQUENTIAL_SCAN, NULL); + if (f == INVALID_HANDLE_VALUE) { + win32perror(name); + return 0; + } + size = GetFileSize(f, &sizeHi); + if (size == (DWORD)-1) { + win32perror(name); + return 0; + } + if (sizeHi) { + _ftprintf(stderr, _T("%s: bigger than 2Gb\n"), name); + return 0; + } + /* CreateFileMapping barfs on zero length files */ + if (size == 0) { + static const char c = '\0'; + processor(&c, 0, name, arg); + CloseHandle(f); + return 1; + } + m = CreateFileMapping(f, NULL, PAGE_READONLY, 0, 0, NULL); + if (m == NULL) { + win32perror(name); + CloseHandle(f); + return 0; + } + p = MapViewOfFile(m, FILE_MAP_READ, 0, 0, 0); + if (p == NULL) { + win32perror(name); + CloseHandle(m); + CloseHandle(f); + return 0; + } + processor(p, size, name, arg); + UnmapViewOfFile(p); + CloseHandle(m); + CloseHandle(f); + return 1; +} + +static void +win32perror(const TCHAR *s) +{ + LPVOID buf; + if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER + | FORMAT_MESSAGE_FROM_SYSTEM, + NULL, + GetLastError(), + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + (LPTSTR) &buf, + 0, + NULL)) { + _ftprintf(stderr, _T("%s: %s"), s, buf); + fflush(stderr); + LocalFree(buf); + } + else + _ftprintf(stderr, _T("%s: unknown Windows error\n"), s); +} |