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Tweaked gstate after mid changes

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- Fixed LFSR_GRM_DSIZE upper bound, since our mids now fit in a single
  leb128.

- Renamed pgrm -> ggrm. To be honest I don't have a great name for this
  variable.
This commit is contained in:
Christopher Haster
2023-09-14 13:19:32 -05:00
parent d0c5bf1210
commit 518e9634e7
3 changed files with 91 additions and 94 deletions
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lfs.c
+5 -5
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@@ -5159,7 +5159,7 @@ static int lfsr_mdir_commit(lfs_t *lfs, lfsr_mdir_t *mdir,
// xor with our current gstate to find our initial gdelta
int err = lfsr_grm_xor(lfs, lfs->dgrm,
LFSR_DATA(lfs->pgrm, LFSR_GRM_DSIZE));
LFSR_DATA(lfs->ggrm, LFSR_GRM_DSIZE));
if (err) {
return err;
}
@@ -5587,7 +5587,7 @@ static int lfsr_mdir_commit(lfs_t *lfs, lfsr_mdir_t *mdir,
lfs->grm = *(lfsr_grm_t*)attrs[i].data.u.b.buffer;
// keep track of the exact encoding on-disk
lfsr_data_fromgrm(lfs, &lfs->grm, lfs->pgrm);
lfsr_data_fromgrm(lfs, &lfs->grm, lfs->ggrm);
}
}
@@ -6536,10 +6536,10 @@ static int lfsr_mountinited(lfs_t *lfs) {
// TODO should the consumegdelta above take gstate/gdelta as a parameter?
// keep track of the current gstate on disk
memcpy(lfs->pgrm, lfs->dgrm, LFSR_GRM_DSIZE);
memcpy(lfs->ggrm, lfs->dgrm, LFSR_GRM_DSIZE);
// decode grm so we can report any removed files as missing
int err = lfsr_data_readgrm(lfs, &LFSR_DATA(lfs->pgrm, LFSR_GRM_DSIZE),
int err = lfsr_data_readgrm(lfs, &LFSR_DATA(lfs->ggrm, LFSR_GRM_DSIZE),
&lfs->grm);
if (err) {
return err;
@@ -10906,7 +10906,7 @@ static int lfs_init(lfs_t *lfs, const struct lfs_config *cfg) {
lfs->opened[LFS_TYPE_DIR] = NULL;
// zero gstate
memset(lfs->pgrm, 0, LFSR_GRM_DSIZE);
memset(lfs->ggrm, 0, LFSR_GRM_DSIZE);
memset(lfs->dgrm, 0, LFSR_GRM_DSIZE);
return 0;