PMIX_EXPORT pmix_status_t PMIx_Lookup(pmix_pdata_t pdata[], size_t ndata,
const pmix_info_t info[], size_t ninfo)
{
pmix_status_t rc;
pmix_cb_t *cb;
char **keys = NULL;
size_t i;
PMIX_ACQUIRE_THREAD(&pmix_global_lock);
pmix_output_verbose(2, pmix_globals.debug_output,
"pmix: lookup called");
if (pmix_globals.init_cntr <= 0) {
PMIX_RELEASE_THREAD(&pmix_global_lock);
return PMIX_ERR_INIT;
}
/* if we aren't connected, don't attempt to send */
if (!pmix_globals.connected) {
PMIX_RELEASE_THREAD(&pmix_global_lock);
return PMIX_ERR_UNREACH;
}
PMIX_RELEASE_THREAD(&pmix_global_lock);
/* bozo protection */
if (NULL == pdata) {
return PMIX_ERR_BAD_PARAM;
}
/* transfer the pdata keys to the keys argv array */
for (i=0; i < ndata; i++) {
if ('\0' != pdata[i].key[0]) {
pmix_argv_append_nosize(&keys, pdata[i].key);
}
}
/* create a callback object as we need to pass it to the
* recv routine so we know which callback to use when
* the return message is recvd */
cb = PMIX_NEW(pmix_cb_t);
cb->cbdata = (void*)pdata;
cb->nvals = ndata;
if (PMIX_SUCCESS != (rc = PMIx_Lookup_nb(keys, info, ninfo,
lookup_cbfunc, cb))) {
PMIX_RELEASE(cb);
pmix_argv_free(keys);
return rc;
}
/* wait for the server to ack our request */
PMIX_WAIT_THREAD(&cb->lock);
/* the data has been stored in the info array by lookup_cbfunc, so
* nothing more for us to do */
rc = cb->status;
PMIX_RELEASE(cb);
return rc;
}
int PMIx_Lookup(pmix_data_range_t scope,
const pmix_info_t info[], size_t ninfo,
pmix_pdata_t pdata[], size_t ndata)
{
int rc;
pmix_cb_t *cb;
char **keys = NULL;
size_t i;
pmix_output_verbose(2, pmix_globals.debug_output,
"pmix: lookup called");
/* bozo protection */
if (NULL == pdata) {
return PMIX_ERR_BAD_PARAM;
}
/* transfer the pdata keys to the keys argv array */
for (i=0; i < ndata; i++) {
if ('\0' != pdata[i].key[0]) {
pmix_argv_append_nosize(&keys, pdata[i].key);
}
}
/* create a callback object as we need to pass it to the
* recv routine so we know which callback to use when
* the return message is recvd */
cb = PMIX_NEW(pmix_cb_t);
cb->cbdata = (void*)pdata;
cb->nvals = ndata;
cb->active = true;
if (PMIX_SUCCESS != (rc = PMIx_Lookup_nb(scope, keys,
info, ninfo,
lookup_cbfunc, cb))) {
PMIX_RELEASE(cb);
pmix_argv_free(keys);
return rc;
}
/* wait for the server to ack our request */
PMIX_WAIT_FOR_COMPLETION(cb->active);
/* the data has been stored in the info array by lookup_cbfunc, so
* nothing more for us to do */
rc = cb->status;
PMIX_RELEASE(cb);
return rc;
}