ref: 397265f5791291defa76487c2388e1898e2e433c
dir: /src/utils/cst_file_wince.c/
/*************************************************************************/
/* */
/* Cepstral, LLC */
/* Copyright (c) 2001 */
/* All Rights Reserved. */
/* */
/* Permission is hereby granted, free of charge, to use and distribute */
/* this software and its documentation without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of this work, and to */
/* permit persons to whom this work is furnished to do so, subject to */
/* the following conditions: */
/* 1. The code must retain the above copyright notice, this list of */
/* conditions and the following disclaimer. */
/* 2. Any modifications must be clearly marked as such. */
/* 3. Original authors' names are not deleted. */
/* 4. The authors' names are not used to endorse or promote products */
/* derived from this software without specific prior written */
/* permission. */
/* */
/* CEPSTRAL, LLC AND THE CONTRIBUTORS TO THIS WORK DISCLAIM ALL */
/* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED */
/* WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL */
/* CEPSTRAL, LLC NOR THE CONTRIBUTORS BE LIABLE FOR ANY SPECIAL, */
/* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER */
/* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION */
/* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR */
/* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
/* */
/*************************************************************************/
/* Author: David Huggins-Daines <dhd@cepstral.com> */
/* Date: August 2001 */
/*************************************************************************/
/* */
/* File I/O wrappers for defective platforms. */
/* */
/* fread and fwrite corrected to return count not numbytes */
/* awb@cs.cmu.edu 20090124 */
/* */
/*************************************************************************/
#include <windows.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include "cst_file.h"
#include "cst_alloc.h"
#include "cst_error.h"
cst_file cst_fopen(const char *path, int mode)
{
size_t count = mbstowcs(NULL,path,0)+1;
wchar_t *wpath = cst_alloc(wchar_t,count);
cst_file fh;
long access = GENERIC_READ|GENERIC_WRITE;
long creation = OPEN_ALWAYS;
if (((mode & CST_OPEN_READ) && (mode & CST_OPEN_WRITE))
|| ((mode & CST_OPEN_READ) && (mode & CST_OPEN_APPEND)))
{
access = GENERIC_READ|GENERIC_WRITE;
creation = OPEN_ALWAYS;
}
else if (mode & CST_OPEN_READ)
{
access = GENERIC_READ;
creation = OPEN_EXISTING;
}
else if (mode & CST_OPEN_WRITE)
{
access = GENERIC_WRITE;
creation = CREATE_ALWAYS; /* FIXME: Does this truncate? Argh! */
}
else if (mode & CST_OPEN_APPEND)
{
access = GENERIC_WRITE;
creation = OPEN_ALWAYS;
}
/* Note, we are ignoring CST_FILE_BINARY entirely since there is no
CRLF translation done by these APIs (we hope). This might cause
problems for other Windows programs that try to read our output. */
mbstowcs(wpath,path,count);
fh = CreateFile(wpath,access,FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,
creation,FILE_ATTRIBUTE_NORMAL,NULL);
cst_free(wpath);
if (fh == INVALID_HANDLE_VALUE) {
long foo = GetLastError();
(void)foo;
return NULL;
}
if (mode & CST_OPEN_APPEND)
SetFilePointer(fh,0,NULL,FILE_END);
return fh;
}
long cst_fwrite(cst_file fh, const void *buf, long size, long count)
{
unsigned long rv;
if (!WriteFile(fh,buf,size*count,&rv,NULL))
return -1;
return rv/size;
}
long cst_fread(cst_file fh, void *buf, long size, long count)
{
unsigned long rv;
if (!ReadFile(fh,buf,size*count,&rv,NULL))
return -1;
return rv/size;
}
int cst_fgetc(cst_file fh)
{
char c;
if (cst_fread(fh, &c, 1, 1) == 0)
return EOF;
return c;
}
long cst_filesize(cst_file fh)
{
return GetFileSize(fh, NULL);
}
long cst_ftell(cst_file fh)
{
return SetFilePointer(fh,0,NULL,FILE_CURRENT);
}
long cst_fseek(cst_file fh, long pos, int whence)
{
int w = 0;
if (whence == CST_SEEK_ABSOLUTE)
w = FILE_BEGIN;
else if (whence == CST_SEEK_RELATIVE)
w = FILE_CURRENT;
else if (whence == CST_SEEK_ENDREL)
w = FILE_END;
return SetFilePointer(fh,pos,NULL,w);
}
int cst_fprintf(cst_file fh, char *fmt, ...)
{
va_list args;
char outbuf[512];
int count;
va_start(args,fmt);
count = vsprintf(outbuf,fmt,args); /* You use WinCE, you lose. */
va_end(args);
return cst_fwrite(fh,outbuf,1,count);
}
int cst_sprintf(char *outbuf, const char *fmt, ...)
{
va_list args;
int count;
va_start(args,fmt);
count = vsprintf(outbuf,fmt,args); /* You use WinCE, you lose. */
va_end(args);
return count;
}
int cst_fclose(cst_file fh)
{
return CloseHandle(fh);
}
cst_filemap *cst_mmap_file(const char *path)
{
HANDLE ffm;
cst_filemap *fmap = NULL;
size_t count = mbstowcs(NULL,path,0) + 1;
wchar_t *wpath = cst_alloc(wchar_t,count);
mbstowcs(wpath,path,count);
ffm = CreateFileForMapping(wpath,GENERIC_READ,FILE_SHARE_READ,NULL,
OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
cst_free(wpath);
if (ffm == INVALID_HANDLE_VALUE) {
return NULL;
} else {
fmap = cst_alloc(cst_filemap,1);
fmap->fh = CreateFileMapping(ffm,NULL,PAGE_READONLY,0,0,NULL);
fmap->mapsize = GetFileSize(fmap->fh, NULL);
fmap->mem = MapViewOfFile(fmap->fh,FILE_MAP_READ,0,0,0);
if (fmap->fh == NULL || fmap->mem == NULL) {
cst_free(fmap);
return NULL;
}
}
return fmap;
}
int cst_munmap_file(cst_filemap *fmap)
{
UnmapViewOfFile(fmap->mem);
CloseHandle(fmap->fh);
cst_free(fmap);
return 0;
}
cst_filemap *cst_read_whole_file(const char *path)
{
cst_filemap *fmap;
cst_file fh;
if ((fh = cst_fopen(path, CST_OPEN_READ)) == NULL) {
cst_errmsg("cst_read_whole_file: Failed to open file\n");
return NULL;
}
fmap = cst_alloc(cst_filemap, 1);
fmap->fh = fh;
fmap->mapsize = GetFileSize(fmap->fh, NULL);
fmap->mem = VirtualAlloc(NULL, fmap->mapsize, MEM_COMMIT|MEM_TOP_DOWN,
PAGE_READWRITE);
cst_fread(fmap->fh, fmap->mem, 1, fmap->mapsize);
return fmap;
}
int cst_free_whole_file(cst_filemap *fmap)
{
if (cst_fclose(fmap->fh) < 0) {
cst_errmsg("cst_read_whole_file: cst_fclose() failed\n");
return -1;
}
VirtualFree(fmap->mem, fmap->mapsize, MEM_DECOMMIT);
cst_free(fmap);
return 0;
}
cst_filemap *cst_read_part_file(const char *path)
{
cst_filemap *fmap;
cst_file fh;
if ((fh = cst_fopen(path, CST_OPEN_READ)) == NULL) {
cst_errmsg("cst_read_part_file: Failed to open file\n");
return NULL;
}
fmap = cst_alloc(cst_filemap, 1);
fmap->fh = fh;
return fmap;
}
int cst_free_part_file(cst_filemap *fmap)
{
if (cst_fclose(fmap->fh) < 0) {
cst_errmsg("cst_read_part_file: cst_fclose() failed\n");
return -1;
}
cst_free(fmap);
return 0;
}