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1.1 root 1: # include "sendmail.h"
2:
3: SCCSID(@(#)stats.c 4.1 7/25/83);
4:
5: /*
6: ** Statistics structure.
7: */
8:
9: struct statistics
10: {
11: time_t stat_itime; /* file initialization time */
12: short stat_size; /* size of this structure */
13: long stat_nf[MAXMAILERS]; /* # msgs from each mailer */
14: long stat_bf[MAXMAILERS]; /* kbytes from each mailer */
15: long stat_nt[MAXMAILERS]; /* # msgs to each mailer */
16: long stat_bt[MAXMAILERS]; /* kbytes to each mailer */
17: };
18:
19: struct statistics Stat;
20: extern long kbytes(); /* for _bf, _bt */
21: /*
22: ** MARKSTATS -- mark statistics
23: */
24:
25: markstats(e, to)
26: register ENVELOPE *e;
27: register ADDRESS *to;
28: {
29: if (to == NULL)
30: {
31: Stat.stat_nf[e->e_from.q_mailer->m_mno]++;
32: Stat.stat_bf[e->e_from.q_mailer->m_mno] += kbytes(CurEnv->e_msgsize);
33: }
34: else
35: {
36: Stat.stat_nt[to->q_mailer->m_mno]++;
37: Stat.stat_bt[to->q_mailer->m_mno] += kbytes(CurEnv->e_msgsize);
38: }
39: }
40: /*
41: ** POSTSTATS -- post statistics in the statistics file
42: **
43: ** Parameters:
44: ** sfile -- the name of the statistics file.
45: **
46: ** Returns:
47: ** none.
48: **
49: ** Side Effects:
50: ** merges the Stat structure with the sfile file.
51: */
52:
53: poststats(sfile)
54: char *sfile;
55: {
56: register int fd;
57: struct statistics stat;
58: extern long lseek();
59:
60: (void) time(&Stat.stat_itime);
61: Stat.stat_size = sizeof Stat;
62:
63: fd = open(sfile, 2);
64: if (fd < 0)
65: {
66: errno = 0;
67: return;
68: }
69: if (read(fd, (char *) &stat, sizeof stat) == sizeof stat &&
70: stat.stat_size == sizeof stat)
71: {
72: /* merge current statistics into statfile */
73: register int i;
74:
75: for (i = 0; i < MAXMAILERS; i++)
76: {
77: stat.stat_nf[i] += Stat.stat_nf[i];
78: stat.stat_bf[i] += Stat.stat_bf[i];
79: stat.stat_nt[i] += Stat.stat_nt[i];
80: stat.stat_bt[i] += Stat.stat_bt[i];
81: }
82: }
83: else
84: bmove((char *) &Stat, (char *) &stat, sizeof stat);
85:
86: /* write out results */
87: (void) lseek(fd, 0L, 0);
88: (void) write(fd, (char *) &stat, sizeof stat);
89: (void) close(fd);
90: }
91: /*
92: ** KBYTES -- given a number, returns the number of Kbytes.
93: **
94: ** Used in statistics gathering of message sizes to try to avoid
95: ** wraparound (at least for a while.....)
96: **
97: ** Parameters:
98: ** bytes -- actual number of bytes.
99: **
100: ** Returns:
101: ** number of kbytes.
102: **
103: ** Side Effects:
104: ** none.
105: **
106: ** Notes:
107: ** This function is actually a ceiling function to
108: ** the nearest K.
109: ** Honestly folks, floating point might be better.
110: ** Or perhaps a "statistical" log method.
111: */
112:
113: long
114: kbytes(bytes)
115: long bytes;
116: {
117: return ((bytes + 999) / 1000);
118: }
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