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96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
/*
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* BIRD -- Statistics Protocol
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*
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* (c) 2022 Vojtech Vilimek <vojtech.vilimek@nic.cz>
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* (c) 2022 CZ.NIC z.s.p.o.
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_STATS_H_
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#define _BIRD_STATS_H_
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#include "lib/timer.h"
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#include "filter/data.h"
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struct stats_channel;
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struct stats_term_config {
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node n;
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const struct f_line *code;
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struct f_val val;
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int type; /* type declared in configuration */
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const char *name;
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};
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struct stats_config {
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struct proto_config c;
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list terms; /* list of counter terms */
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};
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struct stats_proto {
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struct proto p;
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struct stats_channel *c;
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struct tbf rl_gen;
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};
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struct stats_channel {
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struct channel c;
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pool *pool; /* copy of procotol pool */
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u32 _counter; /* internal counter */
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u32 counter; /* publicly accessible counter */
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struct settle_timer *settle_timer;
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};
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struct stats_channel_config {
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struct channel_config c;
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btime min_settle_time; /* wait before notifying filters */
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btime max_settle_time;
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};
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int stats_get_counter(struct symbol *sym);
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struct f_val stats_eval_term(struct stats_term_config *tc);
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int stats_get_type(struct stats_term_config *tc);
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#if 0
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/*
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* get_stats_counter() - extract last notified counter
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* for specific stats channel if it runs
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*
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*/
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inline int
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stats_get_counter(struct symbol *sym)
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{
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if (sym->ch_config->channel)
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return (int) ((struct stats_channel *) sym->ch_config->channel)->counter;
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else
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return 0;
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}
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/*
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* stats_eval_term() - evaluate stats term
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*
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*/
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inline struct f_val
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stats_eval_term(struct stats_term_config *tc)
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{
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enum filter_return fret = f_eval(tc->code, &tc->val);
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if (fret > F_RETURN)
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tc->val.type = T_VOID;
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if (tc->type != tc->val.type)
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tc->val.type = T_VOID;
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return tc->val;
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}
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int
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stats_get_type(struct stats_term_config *tc)
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{
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return tc->type;
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}
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#endif // if 0
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#endif
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