urbit/ares
1
1
Fork 0
mirror of https://github.com/urbit/ares.git synced 2024-12-23 13:25:03 +03:00
Code Issues Packages Projects Releases Wiki Activity

pma: btest.c changes

Browse Source
This commit is contained in:
barter-simsum 2023-12-15 06:36:53 -05:00
parent 66aaa255f7
commit 02b1ae3dd2
1 changed files with 40 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
rust/ares_pma/c-src/btest.c
View File

@ -19,6 +19,30 @@ _test_nodeinteg(BT_state *state, BT_findpath *path,
assert(parent->datk[childidx+1].va == hi);
}
static size_t
_mlist_sizep(BT_mlistnode *head)
/* calculate the size of the mlist in pages */
{
size_t sz = 0;
while (head) {
sz += head->sz;
head = head->next;
}
return sz;
}
static size_t
_flist_sizep(BT_flistnode *head)
/* calculate the size of the flist in pages */
{
size_t sz = 0;
while (head) {
sz += head->sz;
head = head->next;
}
return sz;
}
int main(int argc, char *argv[])
{
DPUTS("PMA Tests");
@ -40,7 +64,6 @@ int main(int argc, char *argv[])
vaof_t hi = 0xDEADBEEF;
pgno_t pg = 1; /* dummy value */
for (size_t i = 0; i < BT_DAT_MAXKEYS * 4; ++i) {
DPRINTF("== i: %zu", i);
_bt_insert(state1, lo, hi, pg);
_test_nodeinteg(state1, &path, lo, hi, pg);
lo++; pg++;
@ -100,6 +123,9 @@ int main(int argc, char *argv[])
#define ITERATIONS 1000
#define MAXALLOCPG 0xFF
lohi_pair allocs[ITERATIONS] = {0};
size_t alloc_sizp = 0;
size_t flist_sizp = _flist_sizep(state3->flist);
size_t mlist_sizp = _mlist_sizep(state3->mlist);
for (size_t i = 0; i < ITERATIONS; i++) {
/* malloc a random number of pages <= 256 and store in the allocs array */
int pages = random();
@ -107,6 +133,12 @@ int main(int argc, char *argv[])
pages += 1;
allocs[i].lo = bt_malloc(state3, pages);
allocs[i].hi = allocs[i].lo + pages;
alloc_sizp += pages;
/* validate size changes to mlist and flist */
assert(_flist_sizep(state3->flist)
== (flist_sizp - alloc_sizp));
assert(_mlist_sizep(state3->mlist)
== (mlist_sizp - alloc_sizp));
}
/* sync the state */
@ -114,9 +146,16 @@ int main(int argc, char *argv[])
/* TODO: close and reopen state. validate ephemeral structures */
flist_sizp = _flist_sizep(state3->flist);
mlist_sizp = _mlist_sizep(state3->mlist);
alloc_sizp = 0;
for (size_t i = 0; i < ITERATIONS / 2; i++) {
/* free half of the allocations */
bt_free(state3, allocs[i].lo, allocs[i].hi);
alloc_sizp += allocs[i].hi - allocs[i].lo;
/* validate size changes to mlist */
assert(_mlist_sizep(state3->mlist)
== (mlist_sizp + alloc_sizp));
}
/* resync the state */