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Annotation of embedaddon/quagga/pimd/pim_time.c, revision 1.1

1.1     ! misho       1: /*
        !             2:   PIM for Quagga
        !             3:   Copyright (C) 2008  Everton da Silva Marques
        !             4: 
        !             5:   This program is free software; you can redistribute it and/or modify
        !             6:   it under the terms of the GNU General Public License as published by
        !             7:   the Free Software Foundation; either version 2 of the License, or
        !             8:   (at your option) any later version.
        !             9: 
        !            10:   This program is distributed in the hope that it will be useful, but
        !            11:   WITHOUT ANY WARRANTY; without even the implied warranty of
        !            12:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            13:   General Public License for more details.
        !            14:   
        !            15:   You should have received a copy of the GNU General Public License
        !            16:   along with this program; see the file COPYING; if not, write to the
        !            17:   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
        !            18:   MA 02110-1301 USA
        !            19:   
        !            20:   $QuaggaId: $Format:%an, %ai, %h$ $
        !            21: */
        !            22: 
        !            23: #include <zebra.h>
        !            24: 
        !            25: #include <string.h>
        !            26: #include <sys/time.h>
        !            27: #include <time.h>
        !            28: 
        !            29: #include "log.h"
        !            30: #include "thread.h"
        !            31: 
        !            32: #include "pim_time.h"
        !            33: 
        !            34: static int gettime_monotonic(struct timeval *tv)
        !            35: {
        !            36:   int result;
        !            37: 
        !            38:   result = gettimeofday(tv, 0);
        !            39:   if (result) {
        !            40:     zlog_err("%s: gettimeofday() failure: errno=%d: %s",
        !            41:             __PRETTY_FUNCTION__,
        !            42:             errno, safe_strerror(errno));
        !            43:   }
        !            44: 
        !            45:   return result;
        !            46: }
        !            47: 
        !            48: /*
        !            49:   pim_time_monotonic_sec():
        !            50:   number of seconds since some unspecified starting point
        !            51: */
        !            52: int64_t pim_time_monotonic_sec()
        !            53: {
        !            54:   struct timeval now_tv;
        !            55: 
        !            56:   if (gettime_monotonic(&now_tv)) {
        !            57:     zlog_err("%s: gettime_monotonic() failure: errno=%d: %s",
        !            58:             __PRETTY_FUNCTION__,
        !            59:             errno, safe_strerror(errno));
        !            60:     return -1;
        !            61:   }
        !            62: 
        !            63:   return now_tv.tv_sec;
        !            64: }
        !            65: 
        !            66: /*
        !            67:   pim_time_monotonic_dsec():
        !            68:   number of deciseconds since some unspecified starting point
        !            69: */
        !            70: int64_t pim_time_monotonic_dsec()
        !            71: {
        !            72:   struct timeval now_tv;
        !            73:   int64_t        now_dsec;
        !            74: 
        !            75:   if (gettime_monotonic(&now_tv)) {
        !            76:     zlog_err("%s: gettime_monotonic() failure: errno=%d: %s",
        !            77:             __PRETTY_FUNCTION__,
        !            78:             errno, safe_strerror(errno));
        !            79:     return -1;
        !            80:   }
        !            81: 
        !            82:   now_dsec = ((int64_t) now_tv.tv_sec) * 10 + ((int64_t) now_tv.tv_usec) / 100000;
        !            83: 
        !            84:   return now_dsec;
        !            85: }
        !            86: 
        !            87: int pim_time_mmss(char *buf, int buf_size, long sec)
        !            88: {
        !            89:   long mm;
        !            90:   int wr;
        !            91: 
        !            92:   zassert(buf_size >= 5);
        !            93: 
        !            94:   mm = sec / 60;
        !            95:   sec %= 60;
        !            96:   
        !            97:   wr = snprintf(buf, buf_size, "%02ld:%02ld", mm, sec);
        !            98: 
        !            99:   return wr != 8;
        !           100: }
        !           101: 
        !           102: static int pim_time_hhmmss(char *buf, int buf_size, long sec)
        !           103: {
        !           104:   long hh;
        !           105:   long mm;
        !           106:   int wr;
        !           107: 
        !           108:   zassert(buf_size >= 8);
        !           109: 
        !           110:   hh = sec / 3600;
        !           111:   sec %= 3600;
        !           112:   mm = sec / 60;
        !           113:   sec %= 60;
        !           114:   
        !           115:   wr = snprintf(buf, buf_size, "%02ld:%02ld:%02ld", hh, mm, sec);
        !           116: 
        !           117:   return wr != 8;
        !           118: }
        !           119: 
        !           120: void pim_time_timer_to_mmss(char *buf, int buf_size, struct thread *t_timer)
        !           121: {
        !           122:   if (t_timer) {
        !           123:     pim_time_mmss(buf, buf_size,
        !           124:                  thread_timer_remain_second(t_timer));
        !           125:   }
        !           126:   else {
        !           127:     snprintf(buf, buf_size, "--:--");
        !           128:   }
        !           129: }
        !           130: 
        !           131: void pim_time_timer_to_hhmmss(char *buf, int buf_size, struct thread *t_timer)
        !           132: {
        !           133:   if (t_timer) {
        !           134:     pim_time_hhmmss(buf, buf_size,
        !           135:                    thread_timer_remain_second(t_timer));
        !           136:   }
        !           137:   else {
        !           138:     snprintf(buf, buf_size, "--:--:--");
        !           139:   }
        !           140: }
        !           141: 
        !           142: void pim_time_uptime(char *buf, int buf_size, int64_t uptime_sec)
        !           143: {
        !           144:   zassert(buf_size >= 8);
        !           145: 
        !           146:   pim_time_hhmmss(buf, buf_size, uptime_sec);
        !           147: }
        !           148: 
        !           149: void pim_time_uptime_begin(char *buf, int buf_size, int64_t now, int64_t begin)
        !           150: {
        !           151:   if (begin > 0)
        !           152:     pim_time_uptime(buf, buf_size, now - begin);
        !           153:   else
        !           154:     snprintf(buf, buf_size, "--:--:--");
        !           155: }
        !           156: 
        !           157: long pim_time_timer_remain_msec(struct thread *t_timer)
        !           158: {
        !           159:   /* FIXME: Actually fetch msec resolution from thread */
        !           160: 
        !           161:   /* no timer thread running means timer has expired: return 0 */
        !           162: 
        !           163:   return t_timer ?
        !           164:     1000 * thread_timer_remain_second(t_timer) :
        !           165:     0;
        !           166: }