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pfsdeletefile OK (#424) 

* pfsdeletefile OK

* Update src/libultra/io/pfsdeletefile.c

Co-authored-by: Tharo <17233964+Thar0@users.noreply.github.com>

Co-authored-by: Tharo <17233964+Thar0@users.noreply.github.com>
This commit is contained in:
EllipticEllipsis 2021-11-11 16:42:53 +00:00 committed by GitHub
parent c018e83d36
commit 3ee6c43600
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1 changed files with 83 additions and 2 deletions
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85
src/libultra/io/pfsdeletefile.c
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@ -1,5 +1,86 @@
#include "PR/pfs.h"
#include "global.h"
#pragma GLOBAL_ASM("asm/non_matchings/boot/pfsdeletefile/osPfsDeleteFile.s")
s32 __osPfsReleasePages(OSPfs* pfs, __OSInode* inode, u8 initialPage, u8 bank, __OSInodeUnit* finalPage);
#pragma GLOBAL_ASM("asm/non_matchings/boot/pfsdeletefile/__osPfsReleasePages.s")
s32 osPfsDeleteFile(OSPfs* pfs, u16 companyCode, u32 gameCode, u8* gameName, u8* extName) {
s32 file_no;
s32 ret;
__OSInode inode;
__OSDir dir;
__OSInodeUnit last_page;
u8 startpage;
u8 bank;
if ((companyCode == 0) || (gameCode == 0)) {
return PFS_ERR_INVALID;
}
ret = osPfsFindFile(pfs, companyCode, gameCode, gameName, extName, &file_no);
if (ret != 0) {
return ret;
}
if (pfs->activebank != 0) {
ret = __osPfsSelectBank(pfs, PFS_ID_BANK_256K);
if (ret != 0) {
return ret;
}
}
ret = __osContRamRead(pfs->queue, pfs->channel, pfs->dir_table + file_no, (u8*)&dir);
if (ret != 0) {
return ret;
}
startpage = dir.start_page.inode_t.page;
for (bank = dir.start_page.inode_t.bank; bank < pfs->banks;) {
ret = __osPfsRWInode(pfs, &inode, PFS_READ, bank);
if (ret != 0) {
return ret;
}
ret = __osPfsReleasePages(pfs, &inode, startpage, bank, &last_page);
if (ret != 0) {
return ret;
}
ret = __osPfsRWInode(pfs, &inode, PFS_WRITE, bank);
if (ret != 0) {
return ret;
}
if (last_page.ipage == PFS_EOF) {
break;
}
bank = last_page.inode_t.bank;
startpage = last_page.inode_t.page;
}
if (bank >= pfs->banks) {
return PFS_ERR_INCONSISTENT;
}
bzero(&dir, sizeof(__OSDir));
ret = __osContRamWrite(pfs->queue, pfs->channel, pfs->dir_table + file_no, (u8*)&dir, 0);
return ret;
}
s32 __osPfsReleasePages(OSPfs* pfs, __OSInode* inode, u8 initialPage, u8 bank, __OSInodeUnit* finalPage) {
__OSInodeUnit next;
__OSInodeUnit prev;
s32 ret = 0;
next.ipage = (u16)((bank << 8) + initialPage);
do {
prev = next;
next = inode->inodePage[next.inode_t.page];
inode->inodePage[prev.inode_t.page].ipage = PFS_PAGE_NOT_USED;
} while (next.ipage >= pfs->inodeStartPage && next.inode_t.bank == bank);
*finalPage = next;
return ret;
}