static int
so_snapshotdestroy(srobj *o, va_list args ssunused)
{
sosnapshot *s = (sosnapshot*)o;
so *e = so_of(o);
uint32_t id = s->t.id;
sr_objlist_del(&e->snapshot, &s->o);
so_dbunbind(e, id);
so_snapshotfree(s);
return 0;
}
static int
so_snapshotfree(sosnapshot *s)
{
so *e = so_of(&s->o);
sx_rollback(&s->t);
if (sslikely(s->name)) {
ss_free(&e->a, s->name);
s->name = NULL;
}
ss_free(&e->a_snapshot, s);
return 0;
}
static void*
so_snapshotget(srobj *o, va_list args)
{
sosnapshot *s = (sosnapshot*)o;
so *e = so_of(o);
va_list va;
va_copy(va, args);
sov *v = va_arg(va, sov*);
va_end(va);
if (ssunlikely(v->o.id != SOV)) {
sr_error(&e->error, "%s", "bad arguments");
return NULL;
}
sodb *db = (sodb*)v->parent;
return so_txdbget(db, 0, s->vlsn, 0, args);
}
static void*
so_snapshotcursor(srobj *o, va_list args)
{
sosnapshot *s = (sosnapshot*)o;
so *e = so_of(o);
va_list va;
va_copy(va, args);
sov *v = va_arg(va, sov*);
va_end(va);
if (ssunlikely(v->o.id != SOV))
goto error;
if (ssunlikely(v->parent == NULL || v->parent->id != SODB))
goto error;
sodb *db = (sodb*)v->parent;
return so_cursornew(db, s->vlsn, 0, args);
error:
sr_error(&e->error, "%s", "bad arguments");
return NULL;
}
int so_scheduler_branch(void *arg)
{
sodb *db = arg;
so *e = so_of(&db->o);
sizone *z = so_zoneof(e);
soworker stub;
so_workerstub_init(&stub);
int rc;
while (1) {
uint64_t vlsn = sx_vlsn(&e->xm);
siplan plan = {
.explain = SI_ENONE,
.plan = SI_BRANCH,
.a = z->branch_wm,
.b = 0,
.c = 0,
.node = NULL
};
rc = si_plan(&db->index, &plan);
if (rc == 0)
break;
rc = si_execute(&db->index, &db->r, &stub.dc, &plan, vlsn);
if (srunlikely(rc == -1))
break;
}
so_workerstub_free(&stub, &db->r);
return rc;
}
int so_scheduler_compact(void *arg)
{
sodb *db = arg;
so *e = so_of(&db->o);
sizone *z = so_zoneof(e);
soworker stub;
so_workerstub_init(&stub);
int rc;
while (1) {
uint64_t vlsn = sx_vlsn(&e->xm);
siplan plan = {
.explain = SI_ENONE,
.plan = SI_COMPACT,
.a = z->compact_wm,
.b = 0,
.c = 0,
.node = NULL
};
rc = si_plan(&db->index, &plan);
if (rc == 0)
break;
rc = si_execute(&db->index, &db->r, &stub.dc, &plan, vlsn);
if (srunlikely(rc == -1))
break;
}
so_workerstub_free(&stub, &db->r);
return rc;
}
int so_scheduler_checkpoint(void *arg)
{
so *o = arg;
soscheduler *s = &o->sched;
uint64_t lsn = sr_seq(&o->seq, SR_LSN);
sr_mutexlock(&s->lock);
s->checkpoint_lsn = lsn;
s->checkpoint = 1;
sr_mutexunlock(&s->lock);
return 0;
}