/*
*         OpenPBS (Portable Batch System) v2.3 Software License
*
* Copyright (c) 1999-2000 Veridian Information Solutions, Inc.
* All rights reserved.
*
* ---------------------------------------------------------------------------
* For a license to use or redistribute the OpenPBS software under conditions
* other than those described below, or to purchase support for this software,
* please contact Veridian Systems, PBS Products Department ("Licensor") at:
*
*    www.OpenPBS.org  +1 650 967-4675                  sales@OpenPBS.org
*                        877 902-4PBS (US toll-free)
* ---------------------------------------------------------------------------
*
* This license covers use of the OpenPBS v2.3 software (the "Software") at
* your site or location, and, for certain users, redistribution of the
* Software to other sites and locations.  Use and redistribution of
* OpenPBS v2.3 in source and binary forms, with or without modification,
* are permitted provided that all of the following conditions are met.
* After December 31, 2001, only conditions 3-6 must be met:
*
* 1. Commercial and/or non-commercial use of the Software is permitted
*    provided a current software registration is on file at www.OpenPBS.org.
*    If use of this software contributes to a publication, product, or
*    service, proper attribution must be given; see www.OpenPBS.org/credit.html
*
* 2. Redistribution in any form is only permitted for non-commercial,
*    non-profit purposes.  There can be no charge for the Software or any
*    software incorporating the Software.  Further, there can be no
*    expectation of revenue generated as a consequence of redistributing
*    the Software.
*
* 3. Any Redistribution of source code must retain the above copyright notice
*    and the acknowledgment contained in paragraph 6, this list of conditions
*    and the disclaimer contained in paragraph 7.
*
* 4. Any Redistribution in binary form must reproduce the above copyright
*    notice and the acknowledgment contained in paragraph 6, this list of
*    conditions and the disclaimer contained in paragraph 7 in the
*    documentation and/or other materials provided with the distribution.
*
* 5. Redistributions in any form must be accompanied by information on how to
*    obtain complete source code for the OpenPBS software and any
*    modifications and/or additions to the OpenPBS software.  The source code
*    must either be included in the distribution or be available for no more
*    than the cost of distribution plus a nominal fee, and all modifications
*    and additions to the Software must be freely redistributable by any party
*    (including Licensor) without restriction.
*
* 6. All advertising materials mentioning features or use of the Software must
*    display the following acknowledgment:
*
*     "This product includes software developed by NASA Ames Research Center,
*     Lawrence Livermore National Laboratory, and Veridian Information
*     Solutions, Inc.
*     Visit www.OpenPBS.org for OpenPBS software support,
*     products, and information."
*
* 7. DISCLAIMER OF WARRANTY
*
* THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT
* ARE EXPRESSLY DISCLAIMED.
*
* IN NO EVENT SHALL VERIDIAN CORPORATION, ITS AFFILIATED COMPANIES, OR THE
* U.S. GOVERNMENT OR ANY OF ITS AGENCIES BE LIABLE FOR ANY DIRECT OR INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This license will be governed by the laws of the Commonwealth of Virginia,
* without reference to its choice of law rules.
*/

#include <pbs_config.h>   /* the master config generated by configure */

#ifndef _POSIX_SOURCE
#define _POSIX_SOURCE 1
#endif  /* _POSIX_SOURCE */

/* System headers */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <stdarg.h>
#include <errno.h>

/* local headers */
#include "portability.h"
#include "af_resmom.h"
/*
#include "af_config.h"
*/

#include "log.h"
/* Macros */
/* File Scope Variables */

/* External Variables */

/* External Functions */
extern int
  openrm(char * host, unsigned int port);

extern int
  closerm(int);

extern int
  addreq(int, char *);

extern char *
  getreq(int);

extern int
  activereq(void);

extern void
  fullresp(int flag);

/* Structures and Unions */
/* NONE */
/* Signal catching functions */
/* NONE */
/* Functions */

char *ResMomInetAddrGet(mom)
ResMom *mom;
  {
  assert(mom != NULL);

  return mom->inetAddr;
  }

int ResMomPortNumberGet(mom)
ResMom *mom;
  {
  assert(mom != NULL);

  return mom->portNumber;
  }

int ResMomConnectFdGet(mom)
ResMom *mom;
  {
  assert(mom != NULL);

  return mom->connectFd;
  }

void ResMomInetAddrPut(mom, mom_name)
ResMom *mom;
char   *mom_name;
  {
  assert(mom != NULL);

  dynamic_strcpy(&mom->inetAddr, mom_name);
  }

void ResMomPortNumberPut(mom, port)
ResMom *mom;
int    port;
  {
  assert(mom != NULL);

  mom->portNumber = port;
  }

void ResMomConnectFdPut(mom, fd)
ResMom *mom;
int    fd;
  {
  assert(mom != NULL);

  mom->connectFd = fd;
  }


/* ResMomOpen: attempts to connect to mom.
   RETURNS a value >= 0 if connection was a success; < 0 otherwise */
int ResMomOpen(mom)
ResMom *mom;
  {
  int    connect;

  static char id[] = "ResMomOpen";

  assert(ResMomInetAddrGet(mom) != NULLSTR && \
         ResMomPortNumberGet(mom) >= 0);

  connect = openrm(ResMomInetAddrGet(mom), ResMomPortNumberGet(mom));

#ifdef DEBUG
  printf("%s: openrm( %s, %d )\n", id, ResMomInetAddrGet(mom),
         ResMomPortNumberGet(mom));
#endif

  /*     We only want a full response */
  fullresp(TRUE);

  if (connect < 0)
    {
    (void)sprintf(log_buffer, "openrm (%s, %d)", ResMomInetAddrGet(mom),
                  ResMomPortNumberGet(mom));
    log_err(errno, id, (char *)log_buffer);
    perror(log_buffer);
    }

  ResMomConnectFdPut(mom, connect);

  return (connect);
  }

/* ResMomClose: attempts to disconnect from mom.
   RETURNS: 0 if closerm() was succesful; non-zero otherwise */
int ResMomClose(mom)
ResMom *mom;
  {
  static char id[] = "ResMomClose";
  int  ret = -1;

  assert(mom != NULL);

  if (ResMomConnectFdGet(mom) < 0)
    {
    (void)sprintf(log_buffer, "ResMom %s not connected!",
                  ResMomInetAddrGet(mom) ? ResMomInetAddrGet(mom) : "null");
    log_err(-1, id, log_buffer);
    }
  else
    {
    ret = closerm(ResMomConnectFdGet(mom));

#ifdef DEBUG
    printf("%s: closerm( %d ): %d\n", id, ResMomConnectFdGet(mom), ret);
#endif

    if (ret != 0)
      {
      (void)sprintf(log_buffer, "closerm of %s",
                    ResMomInetAddrGet(mom) ? ResMomInetAddrGet(mom) : "null");
      log_err(errno, id, log_buffer);
      perror(log_buffer);
      }
    }

  return (ret);
  }

/* ResMomWrite: send a 'buffer' query to Resmom.
   RETURNS: 1 if succesful; 0 otherwise. */
int ResMomWrite(mom, buffer)
ResMom *mom;
char   *buffer;
  {
  static char id[] = "ResMomWrite";
  int ret;

  assert(mom != NULL);

  if (buffer == NULLSTR)
    {
    log_err(-1, id, "Nothing to query\n");
    return 0;
    }

  if (ResMomConnectFdGet(mom) < 0)
    {
    (void)sprintf(log_buffer, "ResMom %s not connected!",
                  ResMomInetAddrGet(mom) ? ResMomInetAddrGet(mom) : "null");
    log_err(-1, id, log_buffer);
    return 0;
    }

#ifdef DEBUG
  printf("%s: addreq(%d, %s)\n", id, ResMomConnectFdGet(mom), buffer);

#endif

  ret = addreq(ResMomConnectFdGet(mom), buffer);

  if (ret != 0)
    {
    (void)sprintf(log_buffer, "failed to add request to ResMom %s",
                  ResMomInetAddrGet(mom) ? ResMomInetAddrGet(mom) : "null");
    log_err(-1, id, log_buffer);
    return 0;
    }

  return 1;
  }

/* ResMomRead: queries the ResMom for data. Returns  result as a string. */
/* This is a malloc-ed return so a call to varstrfree of the return pointer */
/* should be made */
char *ResMomRead(mom)
ResMom  *mom;
  {
  static char id[] = "ResMomRead";
  void *ptr;


  ptr = getreq(ResMomConnectFdGet(mom));
  varstrAdd(ptr, 0, mom);

#ifdef DEBUG
  printf("%s: getreq(%d): %s\n", id, ResMomConnectFdGet(mom), ptr);
#endif
  return((char *)ptr);
  }

void ResMomPrint(mom)
ResMom *mom;
  {
  assert(mom != NULL);

  (void)printf("\t\t\t\tResMom Host = %s\n",
               ResMomInetAddrGet(mom) ? ResMomInetAddrGet(mom) : "null");
  (void)printf("\t\t\t\t  ResMom Port Number = %d\n",
               ResMomPortNumberGet(mom));
  (void)printf("\t\t\t\t  ResMom Connect Fd = %d\n",
               ResMomConnectFdGet(mom));
  }

void ResMomInit(mom)
ResMom *mom;
  {
  assert(mom != NULL);

  mom->inetAddr = NULLSTR;
  ResMomPortNumberPut(mom, 0);
  ResMomConnectFdPut(mom, -1);
  }

void ResMomFree(mom)
ResMom *mom;
  {
  if (mom == NULL)
    return;

  varstrFree(mom->inetAddr);

  varstrFreeByPptr(mom);

  mom->inetAddr = NULLSTR;
  }
