зеркало из https://github.com/mozilla/gecko-dev.git
121 строка
3.1 KiB
C
121 строка
3.1 KiB
C
/*
|
|
The contents of this file are subject to the Mozilla Public License
|
|
Version 1.1 (the "License"); you may not use this file except in
|
|
compliance with the License. You may obtain a copy of the License at
|
|
http://www.mozilla.org/MPL/
|
|
|
|
Software distributed under the License is distributed on an "AS IS"
|
|
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
|
|
License for the specific language governing rights and limitations
|
|
under the License.
|
|
|
|
The Original Code is expat.
|
|
|
|
The Initial Developer of the Original Code is James Clark.
|
|
Portions created by James Clark are Copyright (C) 1998, 1999
|
|
James Clark. All Rights Reserved.
|
|
|
|
Contributor(s):
|
|
|
|
Alternatively, the contents of this file may be used under the terms
|
|
of the GNU General Public License (the "GPL"), in which case the
|
|
provisions of the GPL are applicable instead of those above. If you
|
|
wish to allow use of your version of this file only under the terms of
|
|
the GPL and not to allow others to use your version of this file under
|
|
the MPL, indicate your decision by deleting the provisions above and
|
|
replace them with the notice and other provisions required by the
|
|
GPL. If you do not delete the provisions above, a recipient may use
|
|
your version of this file under either the MPL or the GPL.
|
|
*/
|
|
|
|
#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);
|
|
}
|