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/*
* Copyright (c) 1995-2001 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2014 Ken McDonell. All Rights Reserved.
*
* exercise pmGetContextHostName
*/
#include <pcp/pmapi.h>
#include <pcp/impl.h>
int
main(int argc, char **argv)
{
int c;
int sts;
int ctx1;
int ctx2;
int errflag = 0;
int type = 0;
char *host = NULL; /* pander to gcc */
char local[MAXHOSTNAMELEN];
char buf[MAXHOSTNAMELEN];
/* trim cmd name of leading directory components */
__pmSetProgname(argv[0]);
while ((c = getopt(argc, argv, "a:D:h:L?")) != EOF) {
switch (c) {
case 'a': /* archive name */
if (type != 0) {
fprintf(stderr, "%s: at most one of -a, -h and -L allowed\n", pmProgname);
errflag++;
}
type = PM_CONTEXT_ARCHIVE;
host = optarg;
break;
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;
case 'h': /* contact PMCD on this hostname */
if (type != 0) {
fprintf(stderr, "%s: at most one of -a, -h and -L allowed\n", pmProgname);
errflag++;
}
host = optarg;
type = PM_CONTEXT_HOST;
break;
case 'L': /* LOCAL, no PMCD */
if (type != 0) {
fprintf(stderr, "%s: at most one of -a, -h, -L and -U allowed\n", pmProgname);
errflag++;
}
host = NULL;
type = PM_CONTEXT_LOCAL;
break;
case '?':
default:
errflag++;
break;
}
}
if (errflag || optind < argc) {
fprintf(stderr,
"Usage: %s [options]\n\
\n\
Options:\n\
-a archive metrics source is a PCP log archive\n\
-h host metrics source is PMCD on host\n\
-L use local context instead of PMCD\n",
pmProgname);
exit(1);
}
if (type == 0) {
type = PM_CONTEXT_HOST;
(void)gethostname(local, MAXHOSTNAMELEN);
local[MAXHOSTNAMELEN-1] = '\0';
host = local;
}
if ((ctx1 = pmNewContext(type, host)) < 0) {
if (type == PM_CONTEXT_HOST)
fprintf(stderr, "%s: Cannot connect to PMCD on host \"%s\": %s\n",
pmProgname, host, pmErrStr(ctx1));
else
fprintf(stderr, "%s: Cannot open archive \"%s\": %s\n",
pmProgname, host, pmErrStr(ctx1));
/* continue on in this case to test a bad context */
}
printf("pmGetContextHostName(%d)=\"%s\"\n", ctx1, pmGetContextHostName(ctx1));
printf("pmGetContextHostName_r(%d, ...) => \"%s\"\n", ctx1, pmGetContextHostName_r(ctx1, buf, sizeof(buf)));
ctx2 = pmDupContext();
if (ctx2 >= 0)
printf("pmDupConext()=%d\n", ctx2);
else
printf("pmDupContext()=%d - %s\n", ctx2, pmErrStr(ctx2));
printf("dup ctx pmGetContextHostName(%d)=\"%s\"\n", ctx2, pmGetContextHostName(ctx2));
printf("dup ctx pmGetContextHostName_r(%d, ...) => \"%s\"\n", ctx2, pmGetContextHostName_r(ctx2, buf, sizeof(buf)));
printf("original ctx pmGetContextHostName(%d)=\"%s\"\n", ctx1, pmGetContextHostName(ctx1));
printf("original ctx pmGetContextHostName_r(%d, ...) => \"%s\"\n", ctx1, pmGetContextHostName_r(ctx1, buf, sizeof(buf)));
return 0;
}
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