/var/lib/pcp/testsuite/src/interp2.c is in pcp-testsuite 4.0.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | /*
* Copyright (c) 1997-2001 Silicon Graphics, Inc. All Rights Reserved.
*/
/*
* interp2 - random offset PM_MODE_INTERP exercises
*/
#include <pcp/pmapi.h>
#include "libpcp.h"
static void
mung(struct timeval *start, struct timeval *end,
int pct, struct timeval *mid)
{
__int64_t sec, usec;
sec = (50 + pct * (__int64_t)end->tv_sec + (100 - pct) * (__int64_t)start->tv_sec) / 100;
usec = (50 + pct * (__int64_t)end->tv_usec + (100 - pct) * (__int64_t)start->tv_usec) / 100;
while (usec > 1000000) {
usec -= 1000000;
sec++;
}
while (usec < 0) {
usec += 1000000;
sec--;
}
mid->tv_sec = sec;
mid->tv_usec = usec;
}
static void
printstamp(struct timeval *tp)
{
static struct tm *tmp;
tmp = localtime(&tp->tv_sec);
printf("%02d:%02d:%02d.%03d", tmp->tm_hour, tmp->tm_min, tmp->tm_sec, (int)(tp->tv_usec/1000));
}
int
main(int argc, char **argv)
{
int c;
int sts;
int errflag = 0;
int ahtype = 0;
char *host = NULL; /* pander to gcc */
pmLogLabel label; /* get hostname for archives */
char *namespace = PM_NS_DEFAULT;
pmResult *result;
struct timeval tend;
struct timeval twant;
int msec;
int forw;
int back;
int pct;
int numpmid = 3;
pmID pmid[3];
char *name[] = { "sample.seconds", "sample.drift", "sample.milliseconds" };
pmSetProgname(argv[0]);
while ((c = getopt(argc, argv, "a:D:n:?")) != EOF) {
switch (c) {
case 'a': /* archive name */
if (ahtype != 0) {
fprintf(stderr, "%s: at most one of -a and/or -h allowed\n", pmGetProgname());
errflag++;
}
ahtype = PM_CONTEXT_ARCHIVE;
host = optarg;
break;
case 'D': /* debug options */
sts = pmSetDebug(optarg);
if (sts < 0) {
fprintf(stderr, "%s: unrecognized debug options specification (%s)\n",
pmGetProgname(), optarg);
errflag++;
}
break;
case 'n': /* alternative name space file */
namespace = optarg;
break;
case '?':
default:
errflag++;
break;
}
}
if (errflag) {
fprintf(stderr,
"Usage: %s options ...\n\
\n\
Options\n\
-a archive metrics source is an archive log\n\
-D debugspec standard PCP debugging options\n\
-n namespace use an alternative PMNS\n",
pmGetProgname());
exit(1);
}
if (namespace != PM_NS_DEFAULT && (sts = pmLoadASCIINameSpace(namespace, 1)) < 0) {
printf("%s: Cannot load namespace from \"%s\": %s\n", pmGetProgname(), namespace, pmErrStr(sts));
exit(1);
}
if (ahtype == 0) {
fprintf(stderr, "%s: -a is not optional!\n", pmGetProgname());
exit(1);
}
if ((sts = pmNewContext(ahtype, host)) < 0) {
fprintf(stderr, "%s: Cannot open archive \"%s\": %s\n",
pmGetProgname(), host, pmErrStr(sts));
exit(1);
}
if ((sts = pmGetArchiveLabel(&label)) < 0) {
fprintf(stderr, "%s: Cannot get archive label record: %s\n",
pmGetProgname(), pmErrStr(sts));
exit(1);
}
sts = pmGetArchiveEnd(&tend);
if (sts < 0) {
printf("pmGetArchiveEnd: %s\n", pmErrStr(sts));
exit(1);
}
/* non-flag args are argv[optind] ... argv[argc-1] */
if (optind < argc) {
numpmid = 0;
while (optind < argc && numpmid < 3) {
name[numpmid] = argv[optind];
printf("metric[%d]: %s\n", numpmid, name[numpmid]);
optind++;
numpmid++;
}
}
sts = pmLookupName(numpmid, name, pmid);
if (sts < 0) {
printf("pmLookupName: %s\n", pmErrStr(sts));
exit(1);
}
printf("start: ");
printstamp(&label.ll_start);
putchar('\n');
printf("end: ");
printstamp(&tend);
putchar('\n');
mung(&label.ll_start, &tend, 2, &twant);
#if 0
msec = 1000 * (twant.tv_sec - label.ll_start.tv_sec) +
(twant.tv_usec - label.ll_start.tv_usec) / 1000;
#else
msec = 100;
#endif
printf("step: %d msec\n", msec);
for (pct = 0; pct <= 100; pct += 10) {
__pmLogReads = 0;
mung(&label.ll_start, &tend, pct, &twant);
printf("%3d%% ", pct);
printstamp(&twant);
forw = back = 0;
sts = pmSetMode(PM_MODE_INTERP, &twant, msec);
if (sts < 0) {
printf("pmSetMode: %s\n", pmErrStr(sts));
exit(1);
}
while (pmFetch(numpmid, pmid, &result) >= 0) {
forw++;
pmFreeResult(result);
}
printf("%4d forw + ", forw);
sts = pmSetMode(PM_MODE_INTERP, &twant, -msec);
if (sts < 0) {
printf("pmSetMode: %s\n", pmErrStr(sts));
exit(1);
}
while (pmFetch(numpmid, pmid, &result) >= 0) {
back++;
pmFreeResult(result);
}
printf("%4d back = %d, %d log reads\n",
back, forw + back, __pmLogReads);
}
exit(0);
}
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