131 lines
2.8 KiB
C
131 lines
2.8 KiB
C
/*
|
|
* This file is part of Luma3DS
|
|
* Copyright (C) 2016-2019 Aurora Wright, TuxSH
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
|
|
* * Requiring preservation of specified reasonable legal notices or
|
|
* author attributions in that material or in the Appropriate Legal
|
|
* Notices displayed by works containing it.
|
|
* * Prohibiting misrepresentation of the origin of that material,
|
|
* or requiring that modified versions of such material be marked in
|
|
* reasonable ways as different from the original version.
|
|
*/
|
|
|
|
#include <3ds.h>
|
|
#include "ifile.h"
|
|
|
|
Result IFile_Open(IFile *file, FS_ArchiveID archiveId, FS_Path archivePath, FS_Path filePath, u32 flags)
|
|
{
|
|
Result res;
|
|
|
|
res = FSUSER_OpenFileDirectly(&file->handle, archiveId, archivePath, filePath, flags, 0);
|
|
file->pos = 0;
|
|
file->size = 0;
|
|
return res;
|
|
}
|
|
|
|
Result IFile_Close(IFile *file)
|
|
{
|
|
return FSFILE_Close(file->handle);
|
|
}
|
|
|
|
Result IFile_GetSize(IFile *file, u64 *size)
|
|
{
|
|
Result res;
|
|
|
|
res = FSFILE_GetSize(file->handle, size);
|
|
file->size = *size;
|
|
return res;
|
|
}
|
|
|
|
Result IFile_Read(IFile *file, u64 *total, void *buffer, u32 len)
|
|
{
|
|
u32 read;
|
|
u32 left;
|
|
char *buf;
|
|
u64 cur;
|
|
Result res;
|
|
|
|
if (len == 0)
|
|
{
|
|
*total = 0;
|
|
return 0;
|
|
}
|
|
|
|
buf = (char *)buffer;
|
|
cur = 0;
|
|
left = len;
|
|
while (1)
|
|
{
|
|
res = FSFILE_Read(file->handle, &read, file->pos, buf, left);
|
|
if (R_FAILED(res))
|
|
{
|
|
break;
|
|
}
|
|
|
|
cur += read;
|
|
file->pos += read;
|
|
if (read == left)
|
|
{
|
|
break;
|
|
}
|
|
buf += read;
|
|
left -= read;
|
|
}
|
|
|
|
*total = cur;
|
|
return res;
|
|
}
|
|
|
|
Result IFile_Write(IFile *file, u64 *total, void *buffer, u32 len, u32 flags)
|
|
{
|
|
u32 written;
|
|
u32 left;
|
|
char *buf;
|
|
u64 cur;
|
|
Result res;
|
|
|
|
if (len == 0)
|
|
{
|
|
*total = 0;
|
|
return 0;
|
|
}
|
|
|
|
buf = (char *)buffer;
|
|
cur = 0;
|
|
left = len;
|
|
while (1)
|
|
{
|
|
res = FSFILE_Write(file->handle, &written, file->pos, buf, left, flags);
|
|
if (R_FAILED(res))
|
|
{
|
|
break;
|
|
}
|
|
|
|
cur += written;
|
|
file->pos += written;
|
|
if (written == left)
|
|
{
|
|
break;
|
|
}
|
|
buf += written;
|
|
left -= written;
|
|
}
|
|
|
|
*total = cur;
|
|
return res;
|
|
}
|