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/*
* Copyright (c) 1995-2003 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "logger.h"
#include "pmda.h"
/*
* this routine creates the "fake" pmResult to be added to the
* start of the archive log to identify information about the
* archive beyond what is in the archive label.
*/
/* encode the domain(x), cluster (y) and item (z) parts of the PMID */
#define PMID(x,y,z) ((x<<22)|(y<<10)|z)
/* encode the domain(x) and serial (y) parts of the pmInDom */
#define INDOM(x,y) ((x<<22)|y)
/*
* Note: these pmDesc entries MUST correspond to the corrsponding
* entries from the real PMDA ...
* We fake it out here to accommodate logging from PCP 1.1
* PMCD's and to avoid round-trip dependencies in setting up
* the preamble
*/
static pmDesc desc[] = {
/* pmcd.pmlogger.host */
{ PMID(2,3,3), PM_TYPE_STRING, INDOM(2,1), PM_SEM_DISCRETE, {0,0,0,0,0,0} },
/* pmcd.pmlogger.port */
{ PMID(2,3,0), PM_TYPE_U32, INDOM(2,1), PM_SEM_DISCRETE, {0,0,0,0,0,0} },
/* pmcd.pmlogger.archive */
{ PMID(2,3,2), PM_TYPE_STRING, INDOM(2,1), PM_SEM_DISCRETE, {0,0,0,0,0,0} },
};
/* names added for version 2 archives */
static char* names[] = {
"pmcd.pmlogger.host",
"pmcd.pmlogger.port",
"pmcd.pmlogger.archive"
};
static int n_metric = sizeof(desc) / sizeof(desc[0]);
int
do_preamble(void)
{
int sts;
int i;
int j;
pid_t mypid = getpid();
pmResult *res;
__pmPDU *pb;
pmAtomValue atom;
__pmTimeval tmp;
char path[MAXPATHLEN];
char host[MAXHOSTNAMELEN];
int free_cp;
/* start to build the pmResult */
res = (pmResult *)malloc(sizeof(pmResult) + (n_metric - 1) * sizeof(pmValueSet *));
if (res == NULL)
return -oserror();
res->numpmid = n_metric;
last_stamp = res->timestamp = epoch; /* struct assignment */
tmp.tv_sec = (__int32_t)epoch.tv_sec;
tmp.tv_usec = (__int32_t)epoch.tv_usec;
for (i = 0; i < n_metric; i++)
res->vset[i] = NULL;
for (i = 0; i < n_metric; i++) {
res->vset[i] = (pmValueSet *)malloc(sizeof(pmValueSet));
if (res->vset[i] == NULL) {
sts = -oserror();
goto done;
}
res->vset[i]->pmid = desc[i].pmid;
res->vset[i]->numval = 1;
/* special case for each value 0 .. n_metric-1 */
free_cp = 0;
if (desc[i].pmid == PMID(2,3,3)) {
__pmHostEnt *servInfo;
/* my fully qualified hostname, cloned from the pmcd PMDA */
(void)gethostname(host, MAXHOSTNAMELEN);
host[MAXHOSTNAMELEN-1] = '\0';
if ((servInfo = __pmGetAddrInfo(host)) == NULL)
atom.cp = host;
else {
atom.cp = __pmHostEntGetName(servInfo);
__pmHostEntFree(servInfo);
if (atom.cp == NULL)
atom.cp = host;
else
free_cp = 1;
}
}
else if (desc[i].pmid == PMID(2,3,0)) {
/* my control port number, from ports.c */
atom.l = ctlport;
}
else if (desc[i].pmid == PMID(2,3,2)) {
/*
* the full pathname to the base of the archive, cloned
* from GetPort() in ports.c
*/
if (__pmAbsolutePath(archBase))
atom.cp = archBase;
else {
if (getcwd(path, MAXPATHLEN) == NULL)
atom.cp = archBase;
else {
strcat(path, "/");
strcat(path, archBase);
atom.cp = path;
}
}
}
sts = __pmStuffValue(&atom, &res->vset[i]->vlist[0], desc[i].type);
if (free_cp)
free(atom.cp);
if (sts < 0)
goto done;
res->vset[i]->vlist[0].inst = (int)mypid;
res->vset[i]->valfmt = sts;
}
if ((sts = __pmEncodeResult(fileno(logctl.l_mfp), res, &pb)) < 0)
goto done;
__pmOverrideLastFd(fileno(logctl.l_mfp)); /* force use of log version */
/* and start some writing to the archive log files ... */
sts = __pmLogPutResult2(&logctl, pb);
__pmUnpinPDUBuf(pb);
if (sts < 0)
goto done;
for (i = 0; i < n_metric; i++) {
if ((sts = __pmLogPutDesc(&logctl, &desc[i], 1, &names[i])) < 0)
goto done;
if (desc[i].indom == PM_INDOM_NULL)
continue;
for (j = 0; j < i; j++) {
if (desc[i].indom == desc[j].indom)
break;
}
if (j == i) {
/* need indom ... force one with my PID as the only instance */
int *instid;
char **instname;
if ((instid = (int *)malloc(sizeof(*instid))) == NULL) {
sts = -oserror();
goto done;
}
*instid = (int)mypid;
snprintf(path, sizeof(path), "%" FMT_PID, mypid);
if ((instname = (char **)malloc(sizeof(char *)+strlen(path)+1)) == NULL) {
free(instid);
sts = -oserror();
goto done;
}
/*
* this _is_ correct ... instname[] is a one element array
* with the string value immediately following
*/
instname[0] = (char *)&instname[1];
strcpy(instname[0], path);
/*
* Note. DO NOT free instid and instname ... they get hidden
* away in addindom() below __pmLogPutInDom()
*/
if ((sts = __pmLogPutInDom(&logctl, desc[i].indom, &tmp, 1, instid, instname)) < 0)
goto done;
}
}
/* fudge the temporal index */
fseek(logctl.l_mfp, sizeof(__pmLogLabel)+2*sizeof(int), SEEK_SET);
fseek(logctl.l_mdfp, sizeof(__pmLogLabel)+2*sizeof(int), SEEK_SET);
__pmLogPutIndex(&logctl, &tmp);
fseek(logctl.l_mfp, 0L, SEEK_END);
fseek(logctl.l_mdfp, 0L, SEEK_END);
sts = 0;
/*
* and now free stuff
*/
done:
for (i = 0; i < n_metric; i++) {
if (res->vset[i] != NULL)
free(res->vset[i]);
}
free(res);
return sts;
}
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