int
decode_sharing(attribute *pattr, char *name, char *rescn, char *val)
{
int vns;
int rc = 0; /*return code; 0==success*/
if (val == NULL)
rc = (PBSE_BADNDATVAL);
else {
vns = (int) str_to_vnode_sharing(val);
if (vns == VNS_UNSET)
rc = (PBSE_BADNDATVAL);
}
if (!rc) {
pattr->at_val.at_long = vns;
pattr->at_flags |= ATR_VFLAG_SET|ATR_VFLAG_MODIFY|ATR_VFLAG_MODCACHE;
}
return rc;
}
/**
* @brief
* This function is called from vn_addvnr() before vn_addvnr() inserts a
* new name/value pair. If we return zero, the insertion of the given
* <ID, name, value> tuple will not occur (but processing of the file
* will continue normally); if we return nonzero, the insertion of
* the given tuple will occur (and again, processing continues normally).
*
* Currently we use this function to perform these actions:
*
* for the "cpus" attribute, build a list of the CPUs belonging
* to given vnodes
*
* for the "mems" attribute, to record the memory node number of
* the memory board belonging to a given vnode (note that in
* contrast to CPUs, of which there may be more than one, the
* model for memory is that of a single (logical) memory board
* per vnode)
*
* for the "sharing" attribute, we simply remember the attribute
* value for later use in make_cpuset(), q.v.
*
* for the "resources_available.mem" attribute, set a flag that
* tells us to remember to do the memreserved adjustment
*
* @param[in] vnid - vnode id
* @param[in] attr - attributes
* @param[in] attrval - attribute value
*
* @return int
* @retval -1 Failure
* @retval 0,1 Success
*
*/
int
vn_callback(const char *vnid, char *attr, char *attrval)
{
static void *ctx = NULL;
#if defined(MOM_CPUSET)
static char memres[] = "resources_available.mem";
/*
* If we're setting the memory on a vnode, turn on a flag telling
* us to remember to do the memreserved adjustment.
*/
if ((do_memreserved_adjustment == 0) && (strcmp(attr, memres) == 0)) {
do_memreserved_adjustment = 1;
return (1);
}
#endif /* MOM_CPUSET */
if (strcmp(attr, "cpus") == 0) {
mom_vninfo_t *mvp;
sprintf(log_buffer, "vnid %s, attr %s, val %s",
vnid, attr, attrval);
log_event(PBSEVENT_DEBUG3, 0, 0, __func__, log_buffer);
if ((ctx == NULL) && ((ctx = new_ctx()) == NULL))
return (-1);
if ((mvp = vnid2mominfo(vnid, ctx)) == NULL)
return (0);
add_CPUlist(mvp, attrval);
return (0);
} else if (strcmp(attr, "mems") == 0) {
mom_vninfo_t *mvp;
sprintf(log_buffer, "vnid %s, attr %s, val %s",
vnid, attr, attrval);
log_event(PBSEVENT_DEBUG3, 0, 0, __func__, log_buffer);
if ((ctx == NULL) && ((ctx = new_ctx()) == NULL))
return (-1);
if ((mvp = vnid2mominfo(vnid, ctx)) == NULL)
return (0);
mvp->mvi_memnum = atoi(attrval);
#if defined(MOM_CPUSET) && (CPUSET_VERSION >= 4)
if (memmask_add(mvp->mvi_memnum) != 0)
return (-1);
#endif /* MOM_CPUSET && CPUSET_VERSION >= 4 */
return (0);
} else if (strcmp(attr, "sharing") == 0) {
mom_vninfo_t *mvp;
if ((ctx == NULL) && ((ctx = new_ctx()) == NULL))
return (-1);
if ((mvp = vnid2mominfo(vnid, ctx)) == NULL)
return (0);
mvp->mvi_sharing = str_to_vnode_sharing(attrval);
return (1);
} else
return (1);
}