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ospfd: time: replace local helpers with monotime
This ditches tv_add, tv_sub, tv_cmp, etc. in favour of
monotime{,_since,_until}() which actually makes the code much more
readable in some locations.
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This commit is contained in:
David Lamparter
parent
7790a2d69e
commit
cbf3e3eb3a
@ -22,6 +22,7 @@
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#include <zebra.h>
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#include "monotime.h"
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#include "linklist.h"
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#include "thread.h"
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#include "prefix.h"
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@ -318,7 +319,7 @@ ospf_timer_dump (struct thread *t, char *buf, size_t size)
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if (!t)
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return "inactive";
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result = tv_sub (t->u.sands, recent_relative_time());
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monotime_until (&t->u.sands, &result);
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return ospf_timeval_dump (&result, buf, size);
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}
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@ -22,6 +22,7 @@
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#include <zebra.h>
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#include "monotime.h"
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#include "linklist.h"
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#include "prefix.h"
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#include "if.h"
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@ -277,8 +278,8 @@ ospf_flood (struct ospf *ospf, struct ospf_neighbor *nbr,
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"while local one is initial instance.");
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; /* Accept this LSA for quick LSDB resynchronization. */
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}
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else if (tv_cmp (tv_sub (recent_relative_time (), current->tv_recv),
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msec2tv (ospf->min_ls_arrival)) < 0)
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else if (monotime_since (¤t->tv_recv, NULL)
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< ospf->min_ls_arrival * 1000LL)
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{
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if (IS_DEBUG_OSPF_EVENT)
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zlog_debug ("LSA[Flooding]: LSA is received recently.");
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@ -22,6 +22,7 @@
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#include <zebra.h>
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#include "monotime.h"
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#include "linklist.h"
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#include "prefix.h"
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#include "if.h"
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@ -62,40 +63,6 @@ get_metric (u_char *metric)
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}
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struct timeval
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tv_adjust (struct timeval a)
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{
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while (a.tv_usec >= 1000000)
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{
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a.tv_usec -= 1000000;
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a.tv_sec++;
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}
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while (a.tv_usec < 0)
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{
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a.tv_usec += 1000000;
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a.tv_sec--;
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}
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return a;
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}
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int
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tv_ceil (struct timeval a)
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{
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a = tv_adjust (a);
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return (a.tv_usec ? a.tv_sec + 1 : a.tv_sec);
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}
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int
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tv_floor (struct timeval a)
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{
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a = tv_adjust (a);
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return a.tv_sec;
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}
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struct timeval
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int2tv (int a)
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{
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@ -115,50 +82,22 @@ msec2tv (int a)
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ret.tv_sec = a/1000;
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ret.tv_usec = (a%1000) * 1000;
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return tv_adjust (ret);
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}
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struct timeval
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tv_add (struct timeval a, struct timeval b)
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{
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struct timeval ret;
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ret.tv_sec = a.tv_sec + b.tv_sec;
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ret.tv_usec = a.tv_usec + b.tv_usec;
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return tv_adjust (ret);
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}
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struct timeval
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tv_sub (struct timeval a, struct timeval b)
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{
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struct timeval ret;
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ret.tv_sec = a.tv_sec - b.tv_sec;
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ret.tv_usec = a.tv_usec - b.tv_usec;
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return tv_adjust (ret);
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}
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int
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tv_cmp (struct timeval a, struct timeval b)
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{
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return (a.tv_sec == b.tv_sec ?
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a.tv_usec - b.tv_usec : a.tv_sec - b.tv_sec);
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return ret;
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}
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int
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ospf_lsa_refresh_delay (struct ospf_lsa *lsa)
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{
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struct timeval delta, now;
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struct timeval delta;
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int delay = 0;
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quagga_gettime (QUAGGA_CLK_MONOTONIC, &now);
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delta = tv_sub (now, lsa->tv_orig);
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if (tv_cmp (delta, msec2tv (OSPF_MIN_LS_INTERVAL)) < 0)
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if (monotime_since (&lsa->tv_orig, &delta) < OSPF_MIN_LS_INTERVAL * 1000LL)
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{
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delay = tv_ceil (tv_sub (msec2tv (OSPF_MIN_LS_INTERVAL), delta));
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struct timeval minv = msec2tv (OSPF_MIN_LS_INTERVAL);
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timersub (&minv, &delta, &minv);
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/* TBD: remove padding to full sec, return timeval instead */
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delay = minv.tv_sec + !!minv.tv_usec;
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if (IS_DEBUG_OSPF (lsa, LSA_GENERATE))
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zlog_debug ("LSA[Type%d:%s]: Refresh timer delay %d seconds",
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@ -174,12 +113,10 @@ ospf_lsa_refresh_delay (struct ospf_lsa *lsa)
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int
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get_age (struct ospf_lsa *lsa)
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{
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int age;
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struct timeval rel;
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age = ntohs (lsa->data->ls_age)
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+ tv_floor (tv_sub (recent_relative_time (), lsa->tv_recv));
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return age;
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monotime_since (&lsa->tv_recv, &rel);
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return ntohs (lsa->data->ls_age) + rel.tv_sec;
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}
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@ -227,14 +227,8 @@ struct as_external_lsa
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/* Prototypes. */
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/* XXX: Eek, time functions, similar are in lib/thread.c */
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extern struct timeval tv_adjust (struct timeval);
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extern int tv_ceil (struct timeval);
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extern int tv_floor (struct timeval);
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extern struct timeval int2tv (int);
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extern struct timeval msec2tv (int);
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extern struct timeval tv_add (struct timeval, struct timeval);
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extern struct timeval tv_sub (struct timeval, struct timeval);
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extern int tv_cmp (struct timeval, struct timeval);
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extern int get_age (struct ospf_lsa *);
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extern u_int16_t ospf_lsa_checksum (struct lsa_header *);
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@ -22,6 +22,7 @@
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#include <zebra.h>
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#include "monotime.h"
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#include "thread.h"
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#include "memory.h"
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#include "linklist.h"
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@ -521,6 +522,7 @@ ospf_ls_upd_timer (struct thread *thread)
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struct ospf_lsa *lsa;
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if ((lsa = rn->info) != NULL)
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{
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/* Don't retransmit an LSA if we received it within
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the last RxmtInterval seconds - this is to allow the
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neighbour a chance to acknowledge the LSA as it may
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@ -528,11 +530,12 @@ ospf_ls_upd_timer (struct thread *thread)
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fired. This is a small tweak to what is in the RFC,
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but it will cut out out a lot of retransmit traffic
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- MAG */
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if (tv_cmp (tv_sub (recent_relative_time (), lsa->tv_recv),
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int2tv (retransmit_interval)) >= 0)
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if (monotime_since (&lsa->tv_recv, NULL)
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>= retransmit_interval * 1000000LL)
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listnode_add (update, rn->info);
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}
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}
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}
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if (listcount (update) > 0)
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ospf_ls_upd_send (nbr, update, OSPF_SEND_PACKET_DIRECT);
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@ -1469,10 +1472,8 @@ ospf_db_desc (struct ip *iph, struct ospf_header *ospfh,
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}
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else
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{
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struct timeval t, now;
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quagga_gettime (QUAGGA_CLK_MONOTONIC, &now);
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t = tv_sub (now, nbr->last_send_ts);
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if (tv_cmp (t, int2tv (nbr->v_inactivity)) < 0)
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if (monotime_since (&nbr->last_send_ts, NULL)
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< nbr->v_inactivity * 1000000LL)
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{
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/* In states Loading and Full the slave must resend
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its last Database Description packet in response to
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@ -2074,12 +2075,8 @@ ospf_ls_upd (struct ospf *ospf, struct ip *iph, struct ospf_header *ospfh,
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recent) LSA instance. */
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else
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{
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struct timeval now;
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quagga_gettime (QUAGGA_CLK_MONOTONIC, &now);
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if (tv_cmp (tv_sub (now, current->tv_orig),
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msec2tv (ospf->min_ls_arrival)) >= 0)
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if (monotime_since (¤t->tv_orig, NULL)
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>= ospf->min_ls_arrival * 1000LL)
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/* Trap NSSA type later.*/
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ospf_ls_upd_send_lsa (nbr, current, OSPF_SEND_PACKET_DIRECT);
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DISCARD_LSA (lsa, 8);
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@ -20,6 +20,7 @@ Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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#include <zebra.h>
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#include "monotime.h"
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#include "thread.h"
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#include "memory.h"
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#include "hash.h"
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@ -1421,7 +1422,6 @@ void
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ospf_spf_calculate_schedule (struct ospf *ospf, ospf_spf_reason_t reason)
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{
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unsigned long delay, elapsed, ht;
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struct timeval result;
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if (IS_DEBUG_OSPF_EVENT)
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zlog_debug ("SPF: calculation timer scheduled");
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@ -1441,10 +1441,8 @@ ospf_spf_calculate_schedule (struct ospf *ospf, ospf_spf_reason_t reason)
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return;
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}
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/* XXX Monotic timers: we only care about relative time here. */
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result = tv_sub (recent_relative_time (), ospf->ts_spf);
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elapsed = monotime_since (&ospf->ts_spf, NULL) / 1000;
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elapsed = (result.tv_sec * 1000) + (result.tv_usec / 1000);
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ht = ospf->spf_holdtime * ospf->spf_hold_multiplier;
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if (ht > ospf->spf_max_holdtime)
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@ -23,6 +23,7 @@
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#include <zebra.h>
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#include <string.h>
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#include "monotime.h"
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#include "memory.h"
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#include "thread.h"
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#include "prefix.h"
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@ -2809,10 +2810,8 @@ show_ip_ospf_area (struct vty *vty, struct ospf_area *area, json_object *json_ar
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json_object_boolean_true_add(json_area, "indefiniteActiveAdmin");
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if (area->t_stub_router)
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{
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struct timeval result;
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unsigned long time_store = 0;
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result = tv_sub (area->t_stub_router->u.sands, recent_relative_time());
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time_store = (1000 * result.tv_sec) + (result.tv_usec / 1000);
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long time_store;
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time_store = monotime_until(&area->t_stub_router->u.sands, NULL) / 1000LL;
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json_object_int_add(json_area, "activeStartupRemainderMsecs", time_store);
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}
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}
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@ -2971,9 +2970,8 @@ show_ip_ospf_common (struct vty *vty, struct ospf *ospf, u_char use_json)
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{
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if (use_json)
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{
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unsigned long time_store = 0;
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result = tv_sub (ospf->t_deferred_shutdown->u.sands, recent_relative_time());
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time_store = (1000 * result.tv_sec) + (result.tv_usec / 1000);
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long time_store;
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time_store = monotime_until(&ospf->t_deferred_shutdown->u.sands, NULL) / 1000LL;
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json_object_int_add(json, "deferredShutdownMsecs", time_store);
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}
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else
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@ -3066,11 +3064,9 @@ show_ip_ospf_common (struct vty *vty, struct ospf *ospf, u_char use_json)
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{
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if (ospf->ts_spf.tv_sec || ospf->ts_spf.tv_usec)
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{
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unsigned long time_store = 0;
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long time_store = 0;
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result = tv_sub (recent_relative_time(), ospf->ts_spf);
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result = tv_sub (result, recent_relative_time());
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time_store = (1000 * result.tv_sec) + (result.tv_usec / 1000);
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time_store = monotime_since(&ospf->ts_spf, NULL) / 1000LL;
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json_object_int_add(json, "spfLastExecutedMsecs", time_store);
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time_store = (1000 * ospf->ts_spf_duration.tv_sec) + (ospf->ts_spf_duration.tv_usec / 1000);
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@ -3084,7 +3080,7 @@ show_ip_ospf_common (struct vty *vty, struct ospf *ospf, u_char use_json)
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vty_out (vty, " SPF algorithm ");
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if (ospf->ts_spf.tv_sec || ospf->ts_spf.tv_usec)
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{
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result = tv_sub (recent_relative_time(), ospf->ts_spf);
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monotime_since(&ospf->ts_spf, &result);
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vty_out (vty, "last executed %s ago%s",
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ospf_timeval_dump (&result, timebuf, sizeof (timebuf)),
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VTY_NEWLINE);
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@ -3098,13 +3094,10 @@ show_ip_ospf_common (struct vty *vty, struct ospf *ospf, u_char use_json)
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if (use_json)
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{
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struct timeval temp_time;
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unsigned long time_store = 0;
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if (ospf->t_spf_calc)
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{
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temp_time = tv_sub (ospf->t_spf_calc->u.sands, recent_relative_time());
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time_store = (1000 * temp_time.tv_sec) + (temp_time.tv_usec / 1000);
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long time_store;
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time_store = monotime_until(&ospf->t_spf_calc->u.sands, NULL) / 1000LL;
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json_object_int_add(json, "spfTimerDueInMsecs", time_store);
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}
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@ -3509,16 +3502,9 @@ show_ip_ospf_interface_sub (struct vty *vty, struct ospf *ospf, struct interface
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char timebuf[OSPF_TIME_DUMP_SIZE];
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if (use_json)
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{
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struct timeval result;
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unsigned long time_store = 0;
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long time_store = 0;
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if (oi->t_hello)
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result = tv_sub (oi->t_hello->u.sands, recent_relative_time());
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else
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{
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result.tv_sec = 0;
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result.tv_usec = 0;
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}
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time_store = (1000 * result.tv_sec) + (result.tv_usec / 1000);
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time_store = monotime_until(&oi->t_hello->u.sands, NULL) / 1000LL;
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json_object_int_add(json_interface_sub, "timerHelloInMsecs", time_store);
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}
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else
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@ -3708,11 +3694,9 @@ show_ip_ospf_neighbor_sub (struct vty *vty, struct ospf_interface *oi, json_obje
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json_neighbor = json_object_new_object();
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ospf_nbr_state_message (nbr, msgbuf, 16);
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struct timeval result;
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unsigned long time_store = 0;
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long time_store;
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result = tv_sub (nbr->t_inactivity->u.sands, recent_relative_time());
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time_store = (1000 * result.tv_sec) + (result.tv_usec / 1000);
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time_store = monotime_until(&nbr->t_inactivity->u.sands, NULL) / 1000LL;
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json_object_int_add (json_neighbor, "priority", nbr->priority);
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json_object_string_add (json_neighbor, "state", msgbuf);
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@ -4093,9 +4077,8 @@ show_ip_ospf_nbr_nbma_detail_sub (struct vty *vty, struct ospf_interface *oi, st
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/* Show poll-interval timer. */
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if (use_json)
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{
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struct timeval res = tv_sub (nbr_nbma->t_poll->u.sands, recent_relative_time ());
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unsigned long time_store = 0;
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time_store = (1000 * res.tv_sec) + (res.tv_usec / 1000);
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long time_store;
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time_store = monotime_until(&nbr_nbma->t_poll->u.sands, NULL) / 1000LL;
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json_object_int_add(json_sub, "pollIntervalTimerDueMsec", time_store);
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}
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else
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@ -4170,11 +4153,12 @@ show_ip_ospf_neighbor_detail_sub (struct vty *vty, struct ospf_interface *oi,
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if (nbr->ts_last_progress.tv_sec || nbr->ts_last_progress.tv_usec)
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{
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struct timeval res = tv_sub (recent_relative_time (), nbr->ts_last_progress);
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struct timeval res;
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long time_store;
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time_store = monotime_since(&nbr->ts_last_progress, &res) / 1000LL;
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if (use_json)
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{
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unsigned long time_store = 0;
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time_store = (1000 * res.tv_sec) + (res.tv_usec / 1000);
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json_object_int_add(json_sub, "lastPrgrsvChangeMsec", time_store);
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}
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else
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@ -4189,11 +4173,12 @@ show_ip_ospf_neighbor_detail_sub (struct vty *vty, struct ospf_interface *oi,
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if (nbr->ts_last_regress.tv_sec || nbr->ts_last_regress.tv_usec)
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{
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struct timeval res = tv_sub (recent_relative_time (), nbr->ts_last_regress);
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struct timeval res;
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long time_store;
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time_store = monotime_since(&nbr->ts_last_regress, &res) / 1000LL;
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if (use_json)
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{
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unsigned long time_store = 0;
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time_store = (1000 * res.tv_sec) + (res.tv_usec / 1000);
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json_object_int_add(json_sub, "lastRegressiveChangeMsec", time_store);
|
||||
if (nbr->last_regress_str)
|
||||
json_object_string_add(json_sub, "lastRegressiveChangeReason", nbr->last_regress_str);
|
||||
@ -4234,9 +4219,8 @@ show_ip_ospf_neighbor_detail_sub (struct vty *vty, struct ospf_interface *oi,
|
||||
{
|
||||
if (nbr->t_inactivity)
|
||||
{
|
||||
struct timeval res = tv_sub (nbr->t_inactivity->u.sands, recent_relative_time ());
|
||||
unsigned long time_store = 0;
|
||||
time_store = (1000 * res.tv_sec) + (res.tv_usec / 1000);
|
||||
long time_store;
|
||||
time_store = monotime_until(&nbr->t_inactivity->u.sands, NULL) / 1000LL;
|
||||
json_object_int_add(json_sub, "routerDeadIntervalTimerDueMsec", time_store);
|
||||
}
|
||||
else
|
||||
|
||||
Loading…
Reference in New Issue
Block a user