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/*
* Copyright (c) 1995 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*/
#include <stdio.h>
#include <sys/time.h>
#include "pmapi.h"
#include "impl.h"
#include "pmda.h"
#include "internal.h"
/*
* Called with valid context locked ...
*/
int
__pmFetchLocal(__pmContext *ctxp, int numpmid, pmID pmidlist[], pmResult **result)
{
int sts;
int ctx;
int j;
int k;
int n;
pmResult *ans;
pmResult *tmp_ans;
__pmDSO *dp;
int need;
static pmID * splitlist=NULL;
static int splitmax=0;
if (PM_MULTIPLE_THREADS(PM_SCOPE_DSO_PMDA))
/* Local context requires single-threaded applications */
return PM_ERR_THREAD;
if (numpmid < 1)
return PM_ERR_TOOSMALL;
ctx = __pmPtrToHandle(ctxp);
/*
* this is very ugly ... the DSOs have a high-water mark
* allocation algorithm for the result skeleton, but the
* code that calls us assumes it has freedom to retain
* this result structure for as long as it wishes, and
* then to call pmFreeResult
*
* we make another skeleton, selectively copy and return that
*
* (numpmid - 1) because there's room for one valueSet
* in a pmResult
*/
need = (int)sizeof(pmResult) + (numpmid - 1) * (int)sizeof(pmValueSet *);
if ((ans = (pmResult *)malloc(need)) == NULL)
return -oserror();
/*
* Check if we have enough space to accomodate "best" case scenario -
* all pmids are from the same domain
*/
if (splitmax < numpmid) {
splitmax = numpmid;
pmID *tmp_list = (pmID *)realloc(splitlist, sizeof(pmID)*splitmax);
if (tmp_list == NULL) {
free(splitlist);
splitmax = 0;
free(ans);
return -oserror();
}
splitlist = tmp_list;
}
ans->numpmid = numpmid;
__pmtimevalNow(&ans->timestamp);
for (j = 0; j < numpmid; j++)
ans->vset[j] = NULL;
for (j = 0; j < numpmid; j++) {
int cnt;
if (ans->vset[j] != NULL)
/* picked up in a previous fetch */
continue;
sts = 0;
if ((dp = __pmLookupDSO(((__pmID_int *)&pmidlist[j])->domain)) == NULL)
/* based on domain, unknown PMDA */
sts = PM_ERR_NOAGENT;
else {
if (ctxp->c_sent != dp->domain) {
/*
* current profile is _not_ already cached at other end of
* IPC, so send get current profile ...
* Note: trickier than the non-local case, as no per-PMDA
* caching at the PMCD end, so need to remember the
* last domain to receive a profile
*/
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_FETCH)
fprintf(stderr,
"__pmFetchLocal: calling ???_profile(domain: %d), "
"context: %d\n", dp->domain, ctx);
#endif
if (dp->dispatch.comm.pmda_interface >= PMDA_INTERFACE_5)
dp->dispatch.version.four.ext->e_context = ctx;
sts = dp->dispatch.version.any.profile(ctxp->c_instprof,
dp->dispatch.version.any.ext);
if (sts >= 0)
ctxp->c_sent = dp->domain;
}
}
/* Copy all pmID for the current domain into the temp. list */
for (cnt=0, k=j; k < numpmid; k++ ) {
if (((__pmID_int*)(pmidlist+k))->domain ==
((__pmID_int*)(pmidlist+j))->domain)
splitlist[cnt++] = pmidlist[k];
}
if (sts >= 0) {
if (dp->dispatch.comm.pmda_interface >= PMDA_INTERFACE_5)
dp->dispatch.version.four.ext->e_context = ctx;
sts = dp->dispatch.version.any.fetch(cnt, splitlist, &tmp_ans,
dp->dispatch.version.any.ext);
}
/* Copy results back
*
* Note: We DO NOT have to free tmp_ans since DSO PMDA would
* ALWAYS return a pointer to the static area.
*/
for (n = 0, k = j; k < numpmid && n < cnt; k++) {
if (pmidlist[k] == splitlist[n]) {
if (sts < 0) {
ans->vset[k] = (pmValueSet *)malloc(sizeof(pmValueSet));
if (ans->vset[k] == NULL) {
/* cleanup all partial allocations for ans->vset[] */
for (k--; k >=0; k--)
free(ans->vset[k]);
free(ans);
return -oserror();
}
ans->vset[k]->numval = sts;
ans->vset[k]->pmid = pmidlist[k];
}
else {
ans->vset[k] = tmp_ans->vset[n];
}
#ifdef PCP_DEBUG
if (pmDebug & DBG_TRACE_FETCH) {
char strbuf[20];
char errmsg[PM_MAXERRMSGLEN];
fprintf(stderr, "__pmFetchLocal: [%d] PMID=%s nval=",
k, pmIDStr_r(pmidlist[k], strbuf, sizeof(strbuf)));
if (ans->vset[k]->numval < 0)
fprintf(stderr, "%s\n",
pmErrStr_r(ans->vset[k]->numval, errmsg, sizeof(errmsg)));
else
fprintf(stderr, "%d\n", ans->vset[k]->numval);
}
#endif
n++;
}
}
}
*result = ans;
return 0;
}
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