36 lines
866 B
C
36 lines
866 B
C
#include "ultra64.h"
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#include "global.h"
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#include "ultra64/pfs.h"
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s32 osPfsFreeBlocks(OSPfs* pfs, s32* leftoverBytes) {
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s32 j;
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s32 pages = 0;
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__OSInode inode;
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s32 ret = 0;
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u8 bank;
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s32 offset;
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if (!(pfs->status & PFS_INITIALIZED)) {
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return (PFS_ERR_INVALID);
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}
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if ((ret = __osCheckId(pfs)) != 0) {
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return ret;
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}
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for (bank = PFS_ID_BANK_256K; bank < pfs->banks; bank++) {
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if ((ret = __osPfsRWInode(pfs, &inode, PFS_READ, bank)) != 0) {
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return ret;
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}
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offset = ((bank > PFS_ID_BANK_256K) ? 1 : pfs->inodeStartPage);
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for (j = offset; j < PFS_INODE_SIZE_PER_PAGE; j++) {
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if (inode.inodePage[j].ipage == PFS_PAGE_NOT_USED) {
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pages++;
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}
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}
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}
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*leftoverBytes = pages * PFS_ONE_PAGE * BLOCKSIZE;
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return 0;
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}
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