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#include "nitro.h"
#include "FS_file.h"
#include "FS_command.h"
#include "FS_archive.h"
#include "MI_byteAccess.h"
typedef struct
{
FSArchive *arc;
u32 pos;
}
FSiSyncReadParam;
FSResult FSi_ReadFileCommand(FSFile * p_file);
FSResult FSi_WriteFileCommand(FSFile * p_file);
FSResult FSi_SeekDirCommand(FSFile * p_file);
FSResult FSi_ReadDirCommand(FSFile * p_file);
FSResult FSi_FindPathCommand(FSFile * p_file);
FSResult FSi_GetPathCommand(FSFile * p_file);
FSResult FSi_OpenFileFastCommand(FSFile * p_file);
FSResult FSi_OpenFileDirectCommand(FSFile * p_file);
FSResult FSi_CloseFileCommand(FSFile * p_file);
FSResult (*const fsi_default_command[])(FSFile *) = {
[FS_COMMAND_READFILE] = FSi_ReadFileCommand,
[FS_COMMAND_WRITEFILE] = FSi_WriteFileCommand,
[FS_COMMAND_SEEKDIR] = FSi_SeekDirCommand,
[FS_COMMAND_READDIR] = FSi_ReadDirCommand,
[FS_COMMAND_FINDPATH] = FSi_FindPathCommand,
[FS_COMMAND_GETPATH] = FSi_GetPathCommand,
[FS_COMMAND_OPENFILEFAST] = FSi_OpenFileFastCommand,
[FS_COMMAND_OPENFILEDIRECT] = FSi_OpenFileDirectCommand,
[FS_COMMAND_CLOSEFILE] = FSi_CloseFileCommand,
};
// Case-insensitive string comparison
u32 FSi_StrNICmp(const char * str1, const char * str2, u32 len)
{
int i;
for (i = 0; i < len; i++)
{
u32 c = MI_ReadByte(str1 + i) - 'A';
u32 d = MI_ReadByte(str2 + i) - 'A';
if (c <= 'Z' - 'A')
c += 'a' - 'A';
if (d <= 'Z' - 'A')
d += 'a' - 'A';
if (c != d)
return c - d;
}
return 0;
}
FSResult FSi_ReadTable(FSiSyncReadParam * p, void * dst, u32 len)
{
FSResult ret;
FSArchive * const p_arc = p->arc;
p_arc->flag |= FS_ARCHIVE_FLAG_IS_SYNC;
switch (ret = (*p_arc->table_func)(p_arc, dst, p->pos, len))
{
case FS_RESULT_SUCCESS:
case FS_RESULT_FAILURE:
p_arc->flag &= ~FS_ARCHIVE_FLAG_IS_SYNC;
break;
case FS_RESULT_PROC_ASYNC:
{
OSIntrMode bak_psr = OS_DisableInterrupts();
while (FSi_IsArchiveSync(p_arc))
OS_SleepThread(&p_arc->sync_q);
OS_RestoreInterrupts(bak_psr);
ret = p_arc->list.next->error;
}
break;
}
p->pos += len;
return ret;
}
FSResult FSi_SeekDirDirect(FSFile * p_dir, u32 id)
{
p_dir->stat |= FS_FILE_STATUS_SYNC;
p_dir->arg.seekdir.pos.arc = p_dir->arc;
p_dir->arg.seekdir.pos.pos = 0;
p_dir->arg.seekdir.pos.index = 0;
p_dir->arg.seekdir.pos.own_id = (u16)id;
return FSi_TranslateCommand(p_dir, FS_COMMAND_SEEKDIR);
}
// The actual commands
FSResult FSi_ReadFileCommand(FSFile * p_file)
{
FSArchive *const p_arc = p_file->arc;
const u32 pos = p_file->prop.file.pos;
const u32 len = p_file->arg.readfile.len;
void *const dst = p_file->arg.readfile.dst;
p_file->prop.file.pos += len;
return (*p_arc->read_func)(p_arc, dst, pos, len);
}
FSResult FSi_WriteFileCommand(FSFile * p_file)
{
FSArchive *const p_arc = p_file->arc;
const u32 pos = p_file->prop.file.pos;
const u32 len = p_file->arg.writefile.len;
const void *const src = p_file->arg.writefile.src;
p_file->prop.file.pos += len;
return (*p_arc->write_func)(p_arc, src, pos, len);
}
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