/*
 * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED 
 * All rights reserved.
 * 
 * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
 * non-exclusive and royalty-free license to use, copy, modify and
 * redistribute, solely for non-commercial and non-profit purposes, the
 * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
 * conditions of this Agreement. For the avoidance of doubt, you acquire
 * only a limited right to use the SOFTWARE hereunder, and FLL or any
 * third party developer retains all rights, including but not limited to
 * copyrights, in and to the SOFTWARE.
 * 
 * (1) FLL does not grant you a license in any way for commercial
 * purposes. You may use the SOFTWARE only for non-commercial and
 * non-profit purposes only, such as academic, research and internal
 * business use.
 * (2) The SOFTWARE is protected by the Copyright Law of Japan and
 * international copyright treaties. If you make copies of the SOFTWARE,
 * with or without modification, as permitted hereunder, you shall affix
 * to all such copies of the SOFTWARE the above copyright notice.
 * (3) An explicit reference to this SOFTWARE and its copyright owner
 * shall be made on your publication or presentation in any form of the
 * results obtained by use of the SOFTWARE.
 * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
 * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
 * for such modification or the source code of the modified part of the
 * SOFTWARE.
 * 
 * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
 * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
 * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
 * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
 * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
 * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
 * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
 * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
 * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
 * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
 * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
 * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
 * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
 * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
 * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
 *
 * $OpenXM: OpenXM_contrib2/asir2018/parse/main.c,v 1.2 2019/03/28 06:46:04 ohara Exp $
*/
#include "ca.h"
#include "parse.h"

#include <stdlib.h>
#if defined(VISUAL) || defined(__MINGW32__)
#include <io.h>
#define R_OK 4
#else
#include <unistd.h>
#include <fcntl.h>
#endif

extern JMP_BUF main_env;

#ifndef ASIRRCNAME
#define ASIRRCNAME      "asirrc"
#endif


double get_current_time();
void init_socket();
void recover();
void set_stacksize();

extern int mpi_nprocs,mpi_myid;

char *find_asirrc()
{
  static char name[BUFSIZ];
  char dir[BUFSIZ];
  char *env,*env2;

/* if ASIR_CONFIG is set, execute it; else execute .asirrc */
  env = getenv("ASIR_CONFIG");
  if( env && !access(env, R_OK) ) {
    strcpy(name,env);
    return name;
  }
  env = getenv("HOME");
  if ( env ) {
    sprintf(name, "%s/.asirrc", env);
    if (!access(name, R_OK)) {
      return name;
    }
  }
#if defined(VISUAL) || defined(__MINGW32__)
  env  = getenv("HOMEDRIVE");
  env2 = getenv("HOMEPATH");
  if ( env && env2 ) {
    sprintf(name, "%s%s/.asirrc", env, env2);
    if (!access(name, R_OK)) {
      return name;
    }
  }
  env  = getenv("APPDATA");
  if ( env ) {
    sprintf(name, "%s/OpenXM/.asirrc", env);
    if (!access(name, R_OK)) {
      return name;
    }
  }
  get_rootdir(dir, BUFSIZ);
  sprintf(name, "%s/.asirrc", dir);
  if (!access(name, R_OK)) {
    return name;
  }
#endif
  return NULL;
}

#if defined(VISUAL_LIB)
void Main(int argc,char *argv[])
#else
int main(int argc,char *argv[])
#endif
{
  int tmp;
  char *ifname;
  extern int GC_dont_gc;
  extern int do_asirrc;
  extern int do_file;
  extern char *do_filename;
  extern int asir_setenv;
  extern FILE *in_fp;
  extern int *StackBottom;
#if !defined(VISUAL) && !defined(__MINGW32__)
  char *slash,*bslash,*binname,*p;
#endif

  set_stacksize();
  StackBottom = &tmp;
  GC_init();
#if defined(MPI)
  mpi_init();
  if ( mpi_myid ) {
    int slave_argc;
    char *slave_argv[2];
 
    ox_mpi_slave_init();
    slave_argc = 1;
    slave_argv[0] = "ox_asir"; slave_argv[1]=0;
    ox_main(argc,argv);
    exit(0);
  } else
    ox_mpi_master_init();
#elif !defined(VISUAL) && !defined(__MINGW32__)
  slash = (char *)rindex(argv[0],'/');
  bslash = (char *)rindex(argv[0],'\\');
  if ( slash )
    binname = slash+1;
  else if ( bslash )
    binname = bslash+1;
  else
    binname = argv[0];
  for ( p = binname; *p; p++ )
    *p = tolower(*p);
  if ( !strncmp(binname,"ox_asir",strlen("ox_asir")) ) {
    /* never return */
    ox_main(argc,argv);
    exit(0);
#if defined(DO_PLOT)
  } else if ( !strncmp(binname,"ox_plot",strlen("ox_plot")) ) {
    /* never return */
    ox_plot_main(argc,argv);
    exit(0);
#endif
  } else if ( !strncmp(binname,"ox_launch",strlen("ox_launch")) ) {
    /* never return */
    launch_main(argc,argv);
    exit(0);
  }
#endif

  srandom((int)get_current_time());
/*  mt_sgenrand((unsigned long)get_current_time()); */

  rtime_init();
  env_init();
  endian_init();
  cppname_init();
  process_args(--argc,++argv);
  if (!do_quiet) {
    copyright();
  }
  output_init();
  arf_init();
  nglob_init();
  glob_init();
  sig_init();
  tty_init();
  debug_init();
  pf_init();
  sysf_init();
  parif_init();
  order_init();
  /* XXX set the default ordering */
#if defined(VISUAL) || defined(__MINGW32__)
  init_socket();
#endif
#if defined(UINIT)
  reg_sysf();
#endif

  if ( do_file ) {
    asir_infile=NULL;
    loadasirfile(do_filename);
  } else {
    /* the bottom of the input stack */
    input_init(stdin,"stdin");
  }

  if ( do_asirrc && (ifname = find_asirrc()) ) {
    if ( !SETJMP(main_env) )
      execasirfile(ifname);
  }

  prompt();
  while ( 1 ) {
    if ( SETJMP(main_env) )
      prompt();
    if ( !do_file ) {
      if ( SETJMP(asir_infile->jmpbuf) )
        prompt();
      else
        asir_infile->ready_for_longjmp = 1;
    }
    restore_handler();
    read_eval_loop();
  }
}

#if !defined(VISUAL_LIB)
/* a dummy function */

void set_error(int code,char *reason,char *action)
{}
#endif

void set_stacksize()
{
#if !defined(VISUAL) && !defined(__MINGW32__)
  struct rlimit rlim;
  int c,m;

  getrlimit(RLIMIT_STACK,&rlim);
  if ( rlim.rlim_cur < (1<<26) ) {
    rlim.rlim_cur = MIN(1<<26,rlim.rlim_max);
    setrlimit(RLIMIT_STACK,&rlim);
  }
#endif
}