/* * BIRD -- Unix Timers * * (c) 1998 Martin Mares <mj@ucw.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ #ifndef _BIRD_TIMER_H_ #define _BIRD_TIMER_H_ #include <time.h> #include "lib/resource.h" typedef time_t bird_clock_t; /* Use instead of time_t */ typedef struct timer { resource r; void (*hook)(struct timer *); void *data; unsigned randomize; /* Amount of randomization */ unsigned recurrent; /* Timer recurrence */ node n; /* Internal link */ bird_clock_t expires; /* 0=inactive */ } timer; timer *tm_new(pool *); void tm_start(timer *, unsigned after); void tm_stop(timer *); void tm_dump_all(void); extern bird_clock_t now; /* Relative, monotonic time in seconds */ extern bird_clock_t now_real; /* Time in seconds since fixed known epoch */ extern bird_clock_t boot_time; static inline bird_clock_t tm_remains(timer *t) { return t->expires ? t->expires - now : 0; } static inline void tm_start_max(timer *t, unsigned after) { bird_clock_t rem = tm_remains(t); tm_start(t, (rem > after) ? rem : after); } static inline timer * tm_new_set(pool *p, void (*hook)(struct timer *), void *data, unsigned rand, unsigned rec) { timer *t = tm_new(p); t->hook = hook; t->data = data; t->randomize = rand; t->recurrent = rec; return t; } struct timeformat { char *fmt1, *fmt2; bird_clock_t limit; }; bird_clock_t tm_parse_date(char *); /* Convert date to bird_clock_t */ bird_clock_t tm_parse_datetime(char *); /* Convert date to bird_clock_t */ #define TM_DATETIME_BUFFER_SIZE 32 /* Buffer size required by tm_format_datetime */ void tm_format_datetime(char *x, struct timeformat *fmt_spec, bird_clock_t t); #ifdef TIME_T_IS_64BIT #define TIME_INFINITY 0x7fffffffffffffff #else #ifdef TIME_T_IS_SIGNED #define TIME_INFINITY 0x7fffffff #else #define TIME_INFINITY 0xffffffff #endif #endif #endif