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/*
* utils for pmlogconv
*
* Copyright (c) 1997-2002 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* pinched from pmlogextract and libpcp */
#include "pcp/pmapi.h"
#include "pcp/impl.h"
/*
* raw read of next log record - largely stolen from __pmLogRead in libpcp
*/
int
_pmLogGet(__pmLogCtl *lcp, int vol, __pmPDU **pb)
{
int head;
int tail;
int sts;
long offset;
char *p;
__pmPDU *lpb;
FILE *f;
if (vol == PM_LOG_VOL_META)
f = lcp->l_mdfp;
else
f = lcp->l_mfp;
offset = ftell(f);
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG) {
fprintf(stderr, "_pmLogGet: fd=%d vol=%d posn=%ld ",
fileno(f), vol, offset);
}
#endif
again:
sts = (int)fread(&head, 1, sizeof(head), f);
if (sts != sizeof(head)) {
if (sts == 0) {
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG)
fprintf(stderr, "AFTER end\n");
#endif
fseek(f, offset, SEEK_SET);
if (vol != PM_LOG_VOL_META) {
if (lcp->l_curvol < lcp->l_maxvol) {
if (__pmLogChangeVol(lcp, lcp->l_curvol+1) == 0) {
f = lcp->l_mfp;
goto again;
}
}
}
return PM_ERR_EOL;
}
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG)
fprintf(stderr, "Error: hdr fread=%d %s\n", sts, strerror(errno));
#endif
if (sts > 0)
return PM_ERR_LOGREC;
else
return -errno;
}
if ((lpb = (__pmPDU *)malloc(ntohl(head))) == NULL) {
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG)
fprintf(stderr, "Error: __pmFindPDUBuf(%d) %s\n",
(int)ntohl(head), strerror(errno));
#endif
fseek(f, offset, SEEK_SET);
return -errno;
}
lpb[0] = head;
if ((sts = (int)fread(&lpb[1], 1, ntohl(head) - sizeof(head), f)) != ntohl(head) - sizeof(head)) {
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG)
fprintf(stderr, "Error: data fread=%d %s\n", sts, strerror(errno));
#endif
if (sts == 0) {
fseek(f, offset, SEEK_SET);
return PM_ERR_EOL;
}
else if (sts > 0)
return PM_ERR_LOGREC;
else
return -errno;
}
p = (char *)lpb;
memcpy(&tail, &p[ntohl(head) - sizeof(head)], sizeof(head));
if (head != tail) {
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG)
fprintf(stderr, "Error: head-tail mismatch (%d-%d)\n",
(int)ntohl(head), (int)ntohl(tail));
#endif
return PM_ERR_LOGREC;
}
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG) {
if (vol != PM_LOG_VOL_META || ntohl(lpb[1]) == TYPE_INDOM) {
fprintf(stderr, "@");
if (sts >= 0) {
struct timeval stamp;
__pmTimeval *tvp = (__pmTimeval *)&lpb[vol == PM_LOG_VOL_META ? 2 : 1];
stamp.tv_sec = ntohl(tvp->tv_sec);
stamp.tv_usec = ntohl(tvp->tv_usec);
__pmPrintStamp(stderr, &stamp);
}
else
fprintf(stderr, "unknown time");
}
fprintf(stderr, " len=%d (incl head+tail)\n", (int)ntohl(head));
}
#endif
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_PDU) {
int i, j;
struct timeval stamp;
__pmTimeval *tvp = (__pmTimeval *)&lpb[vol == PM_LOG_VOL_META ? 2 : 1];
fprintf(stderr, "_pmLogGet");
if (vol != PM_LOG_VOL_META || ntohl(lpb[1]) == TYPE_INDOM) {
fprintf(stderr, " timestamp=");
stamp.tv_sec = ntohl(tvp->tv_sec);
stamp.tv_usec = ntohl(tvp->tv_usec);
__pmPrintStamp(stderr, &stamp);
}
fprintf(stderr, " " PRINTF_P_PFX "%p ... " PRINTF_P_PFX "%p", lpb, &lpb[ntohl(head)/sizeof(__pmPDU) - 1]);
fputc('\n', stderr);
fprintf(stderr, "%03d: ", 0);
for (j = 0, i = 0; j < ntohl(head)/sizeof(__pmPDU); j++) {
if (i == 8) {
fprintf(stderr, "\n%03d: ", j);
i = 0;
}
fprintf(stderr, "0x%x ", lpb[j]);
i++;
}
fputc('\n', stderr);
}
#endif
*pb = lpb;
return 0;
}
int
_pmLogPut(FILE *f, __pmPDU *pb)
{
int rlen = ntohl(pb[0]);
int sts;
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG) {
fprintf(stderr, "_pmLogPut: fd=%d rlen=%d\n",
fileno(f), rlen);
}
#endif
if ((sts = (int)fwrite(pb, 1, rlen, f)) != rlen) {
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_LOG)
fprintf(stderr, "_pmLogPut: fwrite=%d %s\n", sts, strerror(errno));
#endif
return -errno;
}
return 0;
}
/*
* like __pmDecodeDesc but pmDesc in metadata not PDU
*/
typedef struct {
__pmLogHdr hdr;
pmDesc desc;
} desc_t;
void
_pmUnpackDesc(__pmPDU *pdubuf, pmDesc *desc)
{
desc_t *pp;
pp = (desc_t *)pdubuf;
desc->type = ntohl(pp->desc.type);
desc->sem = ntohl(pp->desc.sem);
desc->indom = __ntohpmInDom(pp->desc.indom);
desc->units = __ntohpmUnits(pp->desc.units);
desc->pmid = __ntohpmID(pp->desc.pmid);
return;
}
/*
* like rewrite_pdu() from pmlogger
*/
typedef struct {
pmID pmid;
int numval; /* no. of vlist els to follow, or error */
int valfmt; /* insitu or pointer */
__pmValue_PDU vlist[1]; /* zero or more */
} vlist_t;
typedef struct {
int hdr;
// __pmPDUHdr hdr;
__pmTimeval timestamp; /* when returned */
int numpmid; /* no. of PMIDs to follow */
__pmPDU data[1]; /* zero or more */
} result_t;
#define PM_ERR_BASE1 1000
#define XLATE_ERR_1TO2(e) \
((e) <= -PM_ERR_BASE1 ? (e)+PM_ERR_BASE1-PM_ERR_BASE2 : (e))
void
rewrite_pdu(__pmPDU *pb)
{
result_t *pp = (result_t *)pb;
int vsize;
int numpmid;
int numval;
vlist_t *vlp;
int i;
numpmid = ntohl(pp->numpmid);
vsize = 0;
for (i = 0; i < numpmid; i++) {
vlp = (vlist_t *)&pp->data[vsize/sizeof(__pmPDU)];
numval = ntohl(vlp->numval);
vsize += sizeof(vlp->pmid) + sizeof(vlp->numval);
if (numval > 0)
vsize += sizeof(vlp->valfmt) + numval * sizeof(__pmValue_PDU);
if (numval < 0)
vlp->numval = htonl(XLATE_ERR_1TO2(numval));
}
return;
}
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