Changeset: e1bf9453989a for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/e1bf9453989a
Modified Files:
gdk/gdk_bbp.c
Branch: Dec2023
Log Message:
Use locks with timeouts on more locks during SIGUSR1 printing.
diffs (40 lines):
diff --git a/gdk/gdk_bbp.c b/gdk/gdk_bbp.c
--- a/gdk/gdk_bbp.c
+++ b/gdk/gdk_bbp.c
@@ -4967,6 +4967,7 @@ BBPprintinfo(void)
int nr;
} bats[2][2][2][2][2] = {0};
int nbats = 0;
+ int nskip = 0;
if (!BBPtrytmlock(1000)) {
printf("BBP is currently locked, so no BAT information\n");
@@ -4974,13 +4975,19 @@ BBPprintinfo(void)
}
bat sz = (bat) ATOMIC_GET(&BBPsize);
for (bat i = 1; i < sz; i++) {
- MT_lock_set(&GDKswapLock(i));
+ if (!MT_lock_trytime(&GDKswapLock(i), 1000)) {
+ nskip++;
+ continue;
+ }
int r;
if ((r = BBP_refs(i)) > 0 || BBP_lrefs(i) > 0) {
BAT *b = BBP_desc(i);
+ if (b != NULL && !MT_lock_trytime(&b->theaplock, 1000))
{
+ nskip++;
+ b = NULL;
+ }
if (b != NULL) {
nbats++;
- MT_lock_set(&b->theaplock);
ATOMIC_BASE_TYPE status = BBP_status(i);
struct counters *bt = &bats[r >
0][BATdirty(b)][(status & BBPPERSISTENT) != 0][(status & BBPLOADED) !=
0][(status & BBPHOT) != 0];
bt->nr++;
@@ -5067,4 +5074,6 @@ BBPprintinfo(void)
printf("%d bats total, %d in use, %"PRIu32" free bats in common shared
list\n",
sz - 1, nbats, nfree);
+ if (nskip > 0)
+ printf("%d bat slots unaccounted for because of locking\n",
nskip);
}
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