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
|
/*
* Copyright (c) 1997-2001 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2010 Ken McDonell. All Rights Reserved.
*
* Store a string value into an aggregate metric
*/
#include <ctype.h>
#include <pcp/pmapi.h>
#include <pcp/impl.h>
int
main(int argc, char **argv)
{
int type = PM_CONTEXT_HOST;
int c;
int sts;
int errflag = 0;
char *host = "localhost";
static char *usage = "[-D N] [-h hostname] metric stringvalue";
int len;
int n;
char *namelist[1];
pmID pmidlist[1];
pmResult *res;
__pmSetProgname(argv[0]);
while ((c = getopt(argc, argv, "D:h:")) != EOF) {
switch (c) {
#ifdef PCP_DEBUG
case 'D': /* debug flag */
sts = __pmParseDebug(optarg);
if (sts < 0) {
fprintf(stderr, "%s: unrecognized debug flag specification (%s)\n",
pmProgname, optarg);
errflag++;
}
else
pmDebug |= sts;
break;
#endif
case 'h': /* hostname for PMCD to contact */
host = optarg;
break;
case '?':
default:
errflag++;
break;
}
}
if (errflag || optind != argc-2) {
printf("Usage: %s %s\n", pmProgname, usage);
exit(1);
}
if ((sts = pmNewContext(type, host)) < 0) {
printf("%s: Cannot connect to PMCD on host \"%s\": %s\n",
pmProgname, host, pmErrStr(sts));
exit(1);
}
namelist[0] = argv[optind];
n = pmLookupName(1, namelist, pmidlist);
if (n < 0 || pmidlist[0] == PM_ID_NULL) {
printf("pmLookupName: %s\n", pmErrStr(n));
exit(1);
}
if ((n = pmFetch(1, pmidlist, &res)) < 0) {
printf("pmFetch: %s\n", pmErrStr(n));
exit(1);
}
/*
* expecting one value and a pmValueBlock with a type
* of PM_TYPE_AGGREGATE
*/
if (res->vset[0]->numval != 1) {
printf("Expecting numval 1, found %d\n", res->vset[0]->numval);
__pmDumpResult(stdout, res);
exit(1);
}
if (res->vset[0]->valfmt == PM_VAL_INSITU) {
printf("Not expecing PM_VAL_INSITU\n");
__pmDumpResult(stdout, res);
exit(1);
}
if (res->vset[0]->vlist[0].value.pval->vtype != PM_TYPE_AGGREGATE) {
printf("Not expecing type %s\n", pmTypeStr(res->vset[0]->vlist[0].value.pval->vtype));
__pmDumpResult(stdout, res);
exit(1);
}
printf("%s old value: ", namelist[0]);
pmPrintValue(stdout, res->vset[0]->valfmt, res->vset[0]->vlist[0].value.pval->vtype, &res->vset[0]->vlist[0], 0);
/*
* old value is probably from a pinned PDU buffer ... don't free
* and accept small mem leak here
*/
len = strlen(argv[optind+1]);
res->vset[0]->vlist[0].value.pval = (pmValueBlock *)malloc(len + PM_VAL_HDR_SIZE);
res->vset[0]->vlist[0].value.pval->vtype = PM_TYPE_AGGREGATE;
res->vset[0]->vlist[0].value.pval->vlen = len + PM_VAL_HDR_SIZE;
memcpy(res->vset[0]->vlist[0].value.pval->vbuf, argv[optind+1], len);
if ((n = pmStore(res)) < 0) {
printf("pmStore: %s\n", pmErrStr(n));
exit(1);
}
pmFreeResult(res);
if ((n = pmFetch(1, pmidlist, &res)) < 0) {
printf("pmFetch again: %s\n", pmErrStr(n));
exit(1);
}
printf(" new value: ");
pmPrintValue(stdout, res->vset[0]->valfmt, res->vset[0]->vlist[0].value.pval->vtype, &res->vset[0]->vlist[0], 0);
putchar('\n');
pmFreeResult(res);
exit(0);
}
|
