NAME

       slurm_free_ctl_conf,   slurm_load_ctl_conf,   slurm_print_ctl_conf   -  Slurm  information
       reporting functions

SYNTAX

       #include <stdio.h>
       #include <slurm/slurm.h>

       long slurm_api_version ();

       void slurm_free_ctl_conf (
            slurm_ctl_conf_t *conf_info_msg_ptr
       );

       int slurm_load_ctl_conf (
            time_t update_time,
            slurm_ctl_conf_t **conf_info_msg_pptr
       );

       void slurm_print_ctl_conf (
            FILE *out_file,
            slurm_ctl_conf_t *conf_info_msg_ptr
       );

ARGUMENTS

       conf_info_msg_pptr
              Specifies the double pointer to the structure to be created  and  filled  with  the
              time  of  the  last  configuration  update  and detailed configuration information.
              Configuration information includes control machine names, file names, timer values,
              etc. See slurm.h for full details on the data structure's contents.

       conf_info_msg_ptr
              Specifies the pointer to the structure created by slurm_load_ctl_conf.

       out_file
              Specifies the file to print data to.

       update_time
              For all of the following informational calls, if update_time is equal to or greater
              than the last time changes where made to that information, new information  is  not
              returned.   Otherwise  all  the  configuration. job, node, or partition records are
              returned.

DESCRIPTION

       slurm_api_version Return the SLURM API version number.

       slurm_free_ctl_conf Release the storage generated by the slurm_load_ctl_conf function.

       slurm_load_ctl_conf Returns a slurm_ctl_conf_t that contains Slurm configuration records.

       slurm_print_ctl_conf  Prints  the  contents  of  the  data   structure   loaded   by   the
       slurm_load_ctl_conf function.

RETURN VALUE

       For  slurm_api_version  the  SLURM  API  version  number is returned.  All other functions
       return zero on success and -1 on error with the SLURM error code set appropriately.

ERRORS

       SLURM_NO_CHANGE_IN_DATA Data has not changed since update_time.

       SLURM_PROTOCOL_VERSION_ERROR Protocol version has changed, re-link your code.

       SLURM_PROTOCOL_SOCKET_IMPL_TIMEOUT Timeout in communicating with SLURM controller.

EXAMPLE

       #include <stdio.h>
       #include <stdlib.h>
       #include <slurm/slurm.h>
       #include <slurm/slurm_errno.h>

       int main (int argc, char *argv[])
       {
            slurm_ctl_conf_t * conf_info_msg_ptr = NULL;
            long version = slurm_api_version();

            /* We can use the SLURM version number to determine how
             * API should be used */
            printf("slurm_api_version: %ld, %ld.%ld.%ld\n", version,
                 SLURM_VERSION_MAJOR(version),
                 SLURM_VERSION_MINOR(version),
                 SLURM_VERSION_MICRO(version));

            /* get and print some configuration information */
            if ( slurm_load_ctl_conf ((time_t) NULL,
                                      &conf_info_msg_ptr ) ) {
                 slurm_perror ("slurm_load_ctl_conf error");
                 exit (1);
            }
            /* The easy way to print */
            slurm_print_ctl_conf (stdout,
                                  conf_info_msg_ptr);

            /* The hard way */
            printf ("control_machine = %s\n",
                    conf_info_msg_ptr->control_machine);
            printf ("first_job_id = %u\n",
                    conf_info_msg_ptr->first_job_id);

            slurm_free_ctl_conf (conf_info_msg_ptr);
            exit (0);
       }

NOTE

       These functions are included in the libslurm library, which must be linked to your process
       for use (e.g. "cc -lslurm myprog.c").

COPYING

       Copyright (C) 2002-2007 The Regents of the University of California.  Produced at Lawrence
       Livermore National Laboratory (cf, DISCLAIMER).  CODE-OCEC-09-009. All rights reserved.

       This  file  is  part  of  SLURM,  a  resource  management  program.   For   details,   see
       <http://slurm.schedmd.com/>.

       SLURM  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.

       SLURM 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.

SEE ALSO

       scontrol(1), slurm_get_errno(3), slurm_perror(3), slurm_strerror(3)