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Stats add custom expression to protocol

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This commit is contained in:
Vojtech Vilimek 2022-07-28 09:28:52 +02:00
parent c4fdf63482
commit e299ebd5b6
5 changed files with 34 additions and 122 deletions
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4
filter/f-inst.c
View File

@ -483,8 +483,8 @@
SYMBOL;
NEVER_CONSTANT;
RESULT_TYPE(stats_get_type(sym->term));
RESULT_VAL(stats_eval_term(sym->term));
RESULT_TYPE(sym->val->type);
RESULT_VAL(*sym->val);
}
INST(FI_CONSTANT, 0, 1) {

12
proto/stats/config.Y
View File

@ -43,18 +43,20 @@ stats_opt:
type symbol '=' term {
struct stats_term_config *tc = cfg_alloc(sizeof(struct stats_term_config));
struct f_val *val = cfg_allocz(sizeof(struct stats_term_config));
tc->code = (const struct f_line *) f_linearize($4);
tc->type = $1;
tc->name = $2->name;
tc->val = val;
struct f_val val;
/* greater then F_RETURN, therefore 2 */
if (f_eval(f_linearize($4), &val) > 2) cf_error("Runtime error");
if (val.type != $1) cf_error("The expresion does not match defined type");
//if (f_eval(f_linearize($4), &val) > 2) cf_error("Runtime error");
//if (val.type != $1) cf_error("The expresion does not match defined type");
add_tail(&STATS_CFG->terms, (node *) tc);
add_tail(&STATS_CFG->terms, (node *) tc);
stats_eval_term(tc);
$2 = cf_define_symbol($2, SYM_COUNTER_TERM, term, tc);
$2 = cf_define_symbol($2, SYM_COUNTER_TERM, val, val);
}
| MIN SETTLE TIME expr_us { STATS_CC->min_settle_time = $4; }
| MAX SETTLE TIME expr_us { STATS_CC->max_settle_time = $4; }

2
proto/stats/stats-pub.h
View File

@ -2,6 +2,4 @@
#define _BIRD_STATS_PUB_H_
extern int stats_get_counter(struct symbol *sym);
extern struct f_val stats_eval_term(struct stats_term_config *tc);
extern int stats_get_type(struct stats_term_config *tc);
#endif

90
proto/stats/stats.c
View File

@ -36,35 +36,25 @@ stats_rt_notify(struct proto *P UNUSED, struct channel *src_ch, const net_addr *
int changed = 0;
if (new && old)
/* count of exported routes stays the same */
log(L_INFO "nothing happen - no change of counter");
else if (!old)
{
log(L_INFO "increasing _counter");
ch->_counter++;
changed = 1;
if (ch->_counter > 100)
log(L_INFO "underflow?");
}
else if (!new)
{
log(L_INFO "decreasing _counter");
ch->_counter--;
changed = 1;
if (ch->_counter > 100)
log(L_INFO "underflow? - ");
}
else /* shouldn't happen */
{
log(L_INFO "BUG is here !!!");
bug("Both pointers *new and *old in rt_notify are NULL");
}
log(L_INFO "stats channel %s: preparing to kick the timer %d", src_ch->name,
changed);
if (changed)
{
settle_timer_changed(ch->settle_timer);
kick_settle_timer(ch->settle_timer);
settle_timer_changed(&ch->settle_timer);
kick_settle_timer(&ch->settle_timer);
}
}
@ -81,7 +71,6 @@ stats_reload_routes(struct channel *C)
static struct proto *
stats_init(struct proto_config *CF)
{
log(L_INFO "stats_init() ");
struct proto *P = proto_new(CF);
struct stats_proto *p = (void *) P;
@ -93,15 +82,9 @@ stats_init(struct proto_config *CF)
return P;
}
static struct settle_timer_class stats_settle_class = {
.action = stats_settle_timer,
.kick = NULL,
};
static void
stats_configure_channels(struct proto *P, struct proto_config *CF)
{
log(L_INFO "stats_configure_channels()");
struct channel_config *cc;
WALK_LIST(cc, CF->channels)
{
@ -113,16 +96,13 @@ stats_configure_channels(struct proto *P, struct proto_config *CF)
static int
stats_start(struct proto *P)
{
log(L_INFO "stats_start() ");
stats_configure_channels(P, P->cf);
/* evaluate terms on protocol start */
struct stats_term_config *tc;
WALK_LIST(tc, ((struct stats_config *) P->cf)->terms)
{
log(L_INFO "term %s", tc->name);
f_eval(tc->code, &tc->val);
log(L_INFO "content: %s, matches %s", val_dump(&tc->val),
tc->type == tc->val.type ? "yes" : "no");
stats_eval_term(tc);
}
return PS_UP;
@ -150,8 +130,8 @@ stats_reconfigure(struct proto *P, struct proto_config *CF)
struct stats_channel *sc = (void *) c;
struct stats_channel_config *scc = (void *) cc;
sc->settle_timer->min_settle_time = &(scc->min_settle_time);
sc->settle_timer->max_settle_time = &(scc->max_settle_time);
sc->settle_timer.min_settle_time = scc->min_settle_time;
sc->settle_timer.max_settle_time = scc->max_settle_time;
if (sc->counter != sc->_counter)
{
@ -187,13 +167,19 @@ stats_show_proto_info(struct proto *P)
sc->_counter);
if (!P->disabled)
{
cli_msg(-1006, " Settle time: %4u s", (*(sc->settle_timer->min_settle_time)) TO_S);
cli_msg(-1006, " Settle time: %4u s", (*(sc->settle_timer->max_settle_time)) TO_S);
cli_msg(-1006, " Settle time: %4u s", sc->settle_timer.min_settle_time TO_S);
cli_msg(-1006, " Settle time: %4u s", sc->settle_timer.max_settle_time TO_S);
}
}
cli_msg(-1006, " Terms:");
cli_msg(-1006, "terms list: %p", ((struct stats_config *) p->c)->terms);
struct stats_term_config *tc;
WALK_LIST(tc, ((struct stats_config *) P->cf)->terms)
{
stats_eval_term(tc);
cli_msg(-1006, " %s = %s", tc->name, val_dump(tc->val));
}
}
void
@ -209,10 +195,7 @@ stats_update_debug(struct proto *P)
static void
stats_settle_timer(struct settle_timer *st)
{
timer *t = (void *) st;
struct stats_channel *c = t->data;
log(L_INFO "stats_settle_timer() _counter: %u, counter: %u",
c->_counter, c->counter);
struct stats_channel *c = st->settle_data;
/* update only if real change happen */
if (c->counter != c->_counter)
@ -233,12 +216,10 @@ stats_channel_start(struct channel *C)
c->pool = p->p.pool;
if (!c->settle_timer)
c->settle_timer = stm_new_timer(
c->pool, (void *) c, &stats_settle_class);
stm_init(&c->settle_timer, c->pool, (void *)c, stats_settle_timer);
c->settle_timer->min_settle_time = &(cc->min_settle_time);
c->settle_timer->max_settle_time = &(cc->max_settle_time);
c->settle_timer.min_settle_time = cc->min_settle_time;
c->settle_timer.max_settle_time = cc->max_settle_time;
c->_counter = 0;
c->counter = 0;
@ -249,16 +230,9 @@ stats_channel_start(struct channel *C)
static void
stats_channel_shutdown(struct channel *C)
{
log(L_INFO "stats_channel_shutdown()");
struct stats_channel *c = (void *) C;
tm_stop((timer *) c->settle_timer);
c->settle_timer->min_settle_time = NULL;
c->settle_timer->max_settle_time = NULL;
mb_free(c->settle_timer);
c->settle_timer = NULL;
tm_stop(c->settle_timer.t);
c->_counter = 0;
c->counter = 0;
@ -274,31 +248,11 @@ stats_get_counter(struct symbol *sym)
return 0;
}
struct f_val
stats_eval_term(struct stats_term_config *tc)
void stats_eval_term(struct stats_term_config *tc)
{
log(L_INFO "stats_eval_term() evaluating value of %s",
tc->name);
enum filter_return fret = f_eval(tc->code, &tc->val);
if (fret > F_RETURN)
tc->val.type = T_VOID;
if (tc->type != tc->val.type)
tc->val.type = T_VOID;
log(L_INFO " stats_eval_term() returning %s", val_dump(&tc->val));
return tc->val;
f_eval(tc->code, tc->val);
}
int
stats_get_type(struct stats_term_config *tc)
{
log(L_INFO "stats_get_type()");
return tc->type;
}
struct channel_class channel_stats = {
.channel_size = sizeof(struct stats_channel),
.config_size = sizeof(struct stats_channel_config),

48
proto/stats/stats.h
View File

@ -17,7 +17,7 @@ struct stats_channel;
struct stats_term_config {
node n;
const struct f_line *code;
struct f_val val;
struct f_val *val;
int type; /* type declared in configuration */
const char *name;
};
@ -38,7 +38,7 @@ struct stats_channel {
pool *pool; /* copy of procotol pool */
u32 _counter; /* internal counter */
u32 counter; /* publicly accessible counter */
struct settle_timer *settle_timer;
struct settle_timer settle_timer;
};
struct stats_channel_config {
@ -48,48 +48,6 @@ struct stats_channel_config {
};
int stats_get_counter(struct symbol *sym);
struct f_val stats_eval_term(struct stats_term_config *tc);
int stats_get_type(struct stats_term_config *tc);
#if 0
/*
* get_stats_counter() - extract last notified counter
* for specific stats channel if it runs
*
*/
inline int
stats_get_counter(struct symbol *sym)
{
if (sym->ch_config->channel)
return (int) ((struct stats_channel *) sym->ch_config->channel)->counter;
else
return 0;
}
/*
* stats_eval_term() - evaluate stats term
*
*/
inline struct f_val
stats_eval_term(struct stats_term_config *tc)
{
enum filter_return fret = f_eval(tc->code, &tc->val);
if (fret > F_RETURN)
tc->val.type = T_VOID;
if (tc->type != tc->val.type)
tc->val.type = T_VOID;
return tc->val;
}
int
stats_get_type(struct stats_term_config *tc)
{
return tc->type;
}
#endif // if 0
void stats_eval_term(struct stats_term_config *tc);
#endif