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#include "PRinternal/macros.h"
#include "PR/os_internal.h"
#include "PRinternal/controller.h"
s32 osPfsFileState(OSPfs* pfs, s32 file_no, OSPfsState* state) {
s32 ret;
int pages;
__OSInode inode;
__OSDir dir;
__OSInodeUnit next_page;
#if BUILD_VERSION < VERSION_J
int j;
#endif
u8 bank;
#if BUILD_VERSION < VERSION_J
u8 start_page;
#endif
if (file_no >= pfs->dir_size || file_no < 0) {
return PFS_ERR_INVALID;
}
PFS_CHECK_STATUS();
#if BUILD_VERSION >= VERSION_J
ERRCK(__osCheckId(pfs));
#else
PFS_CHECK_ID();
#endif
SET_ACTIVEBANK_TO_ZERO();
ERRCK(__osContRamRead(pfs->queue, pfs->channel, pfs->dir_table + file_no, (u8*)&dir));
if (dir.company_code == 0 || dir.game_code == 0) {
return PFS_ERR_INVALID;
}
#if BUILD_VERSION >= VERSION_J
pages = 0;
next_page = dir.start_page;
bank = 0xFF;
while (TRUE) {
if (next_page.ipage < pfs->inode_start_page) {
break;
} else if (next_page.inode_t.bank != bank) {
bank = next_page.inode_t.bank;
ERRCK(__osPfsRWInode(pfs, &inode, PFS_READ, bank));
}
pages++;
next_page = inode.inode_page[next_page.inode_t.page];
}
if (next_page.ipage != PFS_EOF) {
return PFS_ERR_INCONSISTENT;
}
state->file_size = pages * (PFS_ONE_PAGE * BLOCKSIZE);
state->company_code = dir.company_code;
state->game_code = dir.game_code;
bcopy(&dir.game_name, state->game_name, PFS_FILE_NAME_LEN);
bcopy(&dir.ext_name, state->ext_name, PFS_FILE_EXT_LEN);
ret = __osPfsGetStatus(pfs->queue, pfs->channel);
return ret;
#else
if (dir.start_page.ipage < pfs->inode_start_page) {
return PFS_ERR_INCONSISTENT;
}
pages = 0;
start_page = dir.start_page.inode_t.page;
bank = dir.start_page.inode_t.bank;
while (bank < pfs->banks) {
ERRCK(__osPfsRWInode(pfs, &inode, PFS_READ, bank));
next_page = inode.inode_page[start_page];
pages++;
while (next_page.ipage >= pfs->inode_start_page) {
pages++;
next_page = inode.inode_page[next_page.inode_t.page];
if (next_page.inode_t.bank != bank) {
bank = next_page.inode_t.bank;
start_page = next_page.inode_t.page;
break;
}
}
if (next_page.ipage == PFS_EOF) {
break;
}
}
if (next_page.ipage != PFS_EOF) {
return PFS_ERR_INCONSISTENT;
}
state->file_size = pages * (PFS_ONE_PAGE * BLOCKSIZE);
state->company_code = dir.company_code;
state->game_code = dir.game_code;
for (j = 0; j < ARRLEN(state->game_name); j++) {
state->game_name[j] = dir.game_name[j];
}
for (j = 0; j < ARRLEN(state->ext_name); j++) {
state->ext_name[j] = dir.ext_name[j];
}
return 0;
#endif
}
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