static double
ban_lurker_work(struct worker *wrk, struct vsl_log *vsl)
{
struct ban *b, *bd;
struct banhead_s obans;
double d, dt, n;
dt = 49.62; // Random, non-magic
if (cache_param->ban_lurker_sleep == 0)
return (dt);
Lck_Lock(&ban_mtx);
b = ban_start;
Lck_Unlock(&ban_mtx);
d = VTIM_real() - cache_param->ban_lurker_age;
bd = NULL;
VTAILQ_INIT(&obans);
for (; b != NULL; b = VTAILQ_NEXT(b, list)) {
if (bd != NULL)
ban_lurker_test_ban(wrk, vsl, b, &obans, bd);
if (b->flags & BANS_FLAG_COMPLETED)
continue;
if (b->flags & BANS_FLAG_REQ) {
bd = VTAILQ_NEXT(b, list);
continue;
}
n = ban_time(b->spec) - d;
if (n < 0) {
VTAILQ_INSERT_TAIL(&obans, b, l_list);
if (bd == NULL)
bd = b;
} else if (n < dt) {
dt = n;
}
}
Lck_Lock(&ban_mtx);
VTAILQ_FOREACH(b, &obans, l_list)
ban_mark_completed(b);
Lck_Unlock(&ban_mtx);
return (dt);
}
const char *
BAN_Commit(struct ban_proto *bp)
{
struct ban *b, *bi;
ssize_t ln;
double t0;
CHECK_OBJ_NOTNULL(bp, BAN_PROTO_MAGIC);
AN(bp->vsb);
if (ban_shutdown)
return (ban_error(bp, "Shutting down"));
AZ(VSB_finish(bp->vsb));
ln = VSB_len(bp->vsb);
assert(ln >= 0);
ALLOC_OBJ(b, BAN_MAGIC);
if (b == NULL)
return (ban_error(bp, ban_build_err_no_mem));
VTAILQ_INIT(&b->objcore);
b->spec = malloc(ln + BANS_HEAD_LEN);
if (b->spec == NULL) {
free(b);
return (ban_error(bp, ban_build_err_no_mem));
}
b->flags = bp->flags;
memset(b->spec, 0, BANS_HEAD_LEN);
t0 = VTIM_real();
memcpy(b->spec + BANS_TIMESTAMP, &t0, sizeof t0);
b->spec[BANS_FLAGS] = b->flags & 0xff;
memcpy(b->spec + BANS_HEAD_LEN, VSB_data(bp->vsb), ln);
ln += BANS_HEAD_LEN;
vbe32enc(b->spec + BANS_LENGTH, ln);
Lck_Lock(&ban_mtx);
if (ban_shutdown) {
/* We could have raced a shutdown */
Lck_Unlock(&ban_mtx);
BAN_Free(b);
return (ban_error(bp, "Shutting down"));
}
bi = VTAILQ_FIRST(&ban_head);
VTAILQ_INSERT_HEAD(&ban_head, b, list);
ban_start = b;
VSC_C_main->bans++;
VSC_C_main->bans_added++;
VSC_C_main->bans_persisted_bytes += ln;
if (b->flags & BANS_FLAG_OBJ)
VSC_C_main->bans_obj++;
if (b->flags & BANS_FLAG_REQ)
VSC_C_main->bans_req++;
if (bi != NULL)
ban_info_new(b->spec, ln); /* Notify stevedores */
if (cache_param->ban_dups) {
/* Hunt down duplicates, and mark them as completed */
for (bi = VTAILQ_NEXT(b, list); bi != NULL;
bi = VTAILQ_NEXT(bi, list)) {
if (!(bi->flags & BANS_FLAG_COMPLETED) &&
ban_equal(b->spec, bi->spec)) {
ban_mark_completed(bi);
VSC_C_main->bans_dups++;
}
}
}
if (!(b->flags & BANS_FLAG_REQ))
ban_kick_lurker();
Lck_Unlock(&ban_mtx);
BAN_Abandon(bp);
return (NULL);
}
