sxstate sx_begin(sxmanager *m, sx *x, sxtype type, uint64_t vlsn)
{
sx_promote(x, SXREADY);
x->type = type;
x->log_read = -1;
sr_seqlock(m->r->seq);
x->csn = m->csn;
x->id = sr_seqdo(m->r->seq, SR_TSNNEXT);
if (sslikely(vlsn == 0))
x->vlsn = sr_seqdo(m->r->seq, SR_LSN);
else
x->vlsn = vlsn;
sr_sequnlock(m->r->seq);
sx_init(m, x);
ss_spinlock(&m->lock);
ssrbnode *n = NULL;
int rc = sx_matchtx(&m->i, NULL, (char*)&x->id, sizeof(x->id), &n);
if (rc == 0 && n) {
assert(0);
} else {
ss_rbset(&m->i, n, rc, &x->node);
}
if (type == SXRO)
m->count_rd++;
else
m->count_rw++;
ss_spinunlock(&m->lock);
return SXREADY;
}
sxstate sx_begin(sxmanager *m, sx *t, uint64_t vlsn)
{
t->s = SXREADY;
t->complete = 0;
sr_seqlock(m->seq);
t->id = sr_seqdo(m->seq, SR_TSNNEXT);
if (sslikely(vlsn == 0))
t->vlsn = sr_seqdo(m->seq, SR_LSN);
else
t->vlsn = vlsn;
sr_sequnlock(m->seq);
sx_init(m, t);
ss_spinlock(&m->lock);
ssrbnode *n = NULL;
int rc = sx_matchtx(&m->i, NULL, (char*)&t->id, sizeof(t->id), &n);
if (rc == 0 && n) {
assert(0);
} else {
ss_rbset(&m->i, n, rc, &t->node);
}
m->count++;
ss_spinunlock(&m->lock);
return SXREADY;
}
