1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/*
* Copyright (c) 1999-2000 Sendmail, Inc. and its suppliers.
* All rights reserved.
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the sendmail distribution.
*
* Contributed by Exactis.com, Inc.
*
*/
#ifndef lint
static char id[] = "@(#)$Id: timers.c,v 8.13.16.1 2000/10/09 01:06:45 gshapiro Exp $";
#endif /* ! lint */
#if _FFR_TIMERS
# include <sys/types.h>
# include <sys/time.h>
# include "sendmail.h"
# include <sys/resource.h> /* Must be after sendmail.h for NCR MP-RAS */
static TIMER BaseTimer; /* current baseline */
static int NTimers; /* current pointer into stack */
static TIMER *TimerStack[MAXTIMERSTACK];
static void
# ifdef __STDC__
warntimer(const char *msg, ...)
# else /* __STDC__ */
warntimer(msg, va_alist)
const char *msg;
va_dcl
# endif /* __STDC__ */
{
char buf[MAXLINE];
VA_LOCAL_DECL
# if 0
if (!tTd(98, 30))
return;
# endif /* 0 */
VA_START(msg);
vsnprintf(buf, sizeof buf, msg, ap);
VA_END;
sm_syslog(LOG_NOTICE, CurEnv->e_id, "%s; e_timers=0x%lx",
buf, (u_long) &CurEnv->e_timers);
}
static void
zerotimer(ptimer)
TIMER *ptimer;
{
memset(ptimer, '\0', sizeof *ptimer);
}
static void
addtimer(ta, tb)
TIMER *ta;
TIMER *tb;
{
tb->ti_wall_sec += ta->ti_wall_sec;
tb->ti_wall_usec += ta->ti_wall_usec;
if (tb->ti_wall_usec > 1000000)
{
tb->ti_wall_sec++;
tb->ti_wall_usec -= 1000000;
}
tb->ti_cpu_sec += ta->ti_cpu_sec;
tb->ti_cpu_usec += ta->ti_cpu_usec;
if (tb->ti_cpu_usec > 1000000)
{
tb->ti_cpu_sec++;
tb->ti_cpu_usec -= 1000000;
}
}
static void
subtimer(ta, tb)
TIMER *ta;
TIMER *tb;
{
tb->ti_wall_sec -= ta->ti_wall_sec;
tb->ti_wall_usec -= ta->ti_wall_usec;
if (tb->ti_wall_usec < 0)
{
tb->ti_wall_sec--;
tb->ti_wall_usec += 1000000;
}
tb->ti_cpu_sec -= ta->ti_cpu_sec;
tb->ti_cpu_usec -= ta->ti_cpu_usec;
if (tb->ti_cpu_usec < 0)
{
tb->ti_cpu_sec--;
tb->ti_cpu_usec += 1000000;
}
}
static int
getcurtimer(ptimer)
TIMER *ptimer;
{
struct rusage ru;
struct timeval now;
if (getrusage(RUSAGE_SELF, &ru) < 0 || gettimeofday(&now, NULL) < 0)
return -1;
ptimer->ti_wall_sec = now.tv_sec;
ptimer->ti_wall_usec = now.tv_usec;
ptimer->ti_cpu_sec = ru.ru_utime.tv_sec + ru.ru_stime.tv_sec;
ptimer->ti_cpu_usec = ru.ru_utime.tv_usec + ru.ru_stime.tv_usec;
if (ptimer->ti_cpu_usec > 1000000)
{
ptimer->ti_cpu_sec++;
ptimer->ti_cpu_usec -= 1000000;
}
return 0;
}
static void
getinctimer(ptimer)
TIMER *ptimer;
{
TIMER cur;
if (getcurtimer(&cur) < 0)
{
zerotimer(ptimer);
return;
}
if (BaseTimer.ti_wall_sec == 0)
{
/* first call */
memset(ptimer, '\0', sizeof *ptimer);
}
else
{
*ptimer = cur;
subtimer(&BaseTimer, ptimer);
}
BaseTimer = cur;
}
void
flushtimers()
{
NTimers = 0;
(void) getcurtimer(&BaseTimer);
}
void
pushtimer(ptimer)
TIMER *ptimer;
{
int i;
int save_errno = errno;
TIMER incr;
/* find how much time has changed since last call */
getinctimer(&incr);
/* add that into the old timers */
i = NTimers;
if (i > MAXTIMERSTACK)
i = MAXTIMERSTACK;
while (--i >= 0)
{
addtimer(&incr, TimerStack[i]);
if (TimerStack[i] == ptimer)
{
warntimer("Timer@0x%lx already on stack, index=%d, NTimers=%d",
(u_long) ptimer, i, NTimers);
errno = save_errno;
return;
}
}
errno = save_errno;
/* handle stack overflow */
if (NTimers >= MAXTIMERSTACK)
return;
/* now add the timer to the stack */
TimerStack[NTimers++] = ptimer;
}
void
poptimer(ptimer)
TIMER *ptimer;
{
int i;
int save_errno = errno;
TIMER incr;
/* find how much time has changed since last call */
getinctimer(&incr);
/* add that into the old timers */
i = NTimers;
if (i > MAXTIMERSTACK)
i = MAXTIMERSTACK;
while (--i >= 0)
addtimer(&incr, TimerStack[i]);
/* pop back to this timer */
for (i = 0; i < NTimers; i++)
{
if (TimerStack[i] == ptimer)
break;
}
if (i != NTimers - 1)
warntimer("poptimer: odd pop (timer=0x%lx, index=%d, NTimers=%d)",
(u_long) ptimer, i, NTimers);
NTimers = i;
/* clean up and return */
errno = save_errno;
}
char *
strtimer(ptimer)
TIMER *ptimer;
{
static char buf[40];
snprintf(buf, sizeof buf, "%ld.%06ldr/%ld.%06ldc",
ptimer->ti_wall_sec, ptimer->ti_wall_usec,
ptimer->ti_cpu_sec, ptimer->ti_cpu_usec);
return buf;
}
#endif /* _FFR_TIMERS */
|
