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    Types: TextFile
    Names: »testdbm.c«

└─⟦a05ed705a⟧ Bits:30007078 DKUUG GNU 2/12/89
    └─⟦847972ed9⟧ »./gdbm0.9.tar.Z« 
        └─⟦e41d67701⟧ 
            └─⟦this⟧ »gdbm/testdbm.c« 

TextFile

/* testdbm.c - Driver program to test the dbm interface routines. */

/*  GNU DBM  - DataBase Manager (database subroutines) by Philip A. Nelson
    Copyright (C) 1989  Free Software Foundation, Inc.

    This program 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.

    This program 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.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    You may contact the author by:
       e-mail:  phil@wwu.edu
      us-mail:  Philip A. Nelson
                Computer Science Department
                Western Washington University
                Bellingham, WA 98226
        phone:  (206) 676-3035
       
*************************************************************************/


#include <stdio.h>
#include <sys/types.h>
#include <sys/file.h>
#include <sys/stat.h>

#define TRUE  1
#define FALSE 0

typedef struct {
  char *dptr;
  int   dsize;
} datum;

extern datum fetch ();
extern datum firstkey ();
extern datum nextkey ();

/* The test program allows one to call all the routines plus the hash function.
   The commands are single letter commands.  The user is prompted for all other
   information.  The commands are q (quit), f (fetch), s (store), d (delete),
   1 (firstkey), n (nextkey) and h (hash function). */

main ()
{

  char  cmd_ch;

  datum key_data;
  datum data_data;
  datum return_data;

  char key_line[500];
  char data_line[1000];


  char done = FALSE;
  key_data.dptr = key_line;
  data_data.dptr = data_line;

  if (dbminit ("junkdbm") != 0)
    {
      printf("dbminit failed.\n");
      exit(2);
    }

  /* Welcome message. */
  printf ("\nWelcome to the dbm test program.  Type ? for help.\n\n");
  
  while (!done)
    {
      printf("com -> ");
      cmd_ch = getchar();
      while (getchar() != '\n') /* Do nothing. */;
      switch (cmd_ch)
	{
	case 'q':
	  done = TRUE;
	  break;

	case 'f':
	  printf ("key -> ");
	  gets (key_line);
	  key_data.dsize = strlen (key_line)+1;
	  return_data = fetch (key_data);
	  if (return_data.dptr != NULL)
	      printf ("data is ->%s\n\n", return_data.dptr);
	  else
	    printf ("No such item found.\n\n");
	  break;

	case 's':
	  printf ("key -> ");
	  gets(key_line);
	  key_data.dsize = strlen (key_line)+1;
	  printf ("data -> ");
	  gets(data_line);
	  data_data.dsize = strlen (data_line)+1;
	  if (store (key_data, data_data) != 0)
	    printf("Item not inserted. \n");
	  printf("\n");
	  break;

	case 'd':
	  printf ("key -> ");
	  gets(key_line);
	  key_data.dsize = strlen (key_line)+1;
	  if (delete (key_data) != 0)
	    printf("Item not found or deleted\n");
	  printf("\n");
	  break;

	case '1':
	  return_data = firstkey ();
	  if (return_data.dptr != NULL)
	      printf ("data is ->%s\n\n", return_data.dptr);
	  else
	    printf ("No such item found.\n\n");
	  break;


	case '2':
	  return_data = nextkey (return_data);
	  if (return_data.dptr != NULL)
	      printf ("data is ->%s\n\n", return_data.dptr);
	  else
	    printf ("No such item found.\n\n");
	  break;

	case 'c':
	  {
	    int temp;
	    temp = 0;
	    return_data = firstkey ();
	    while (return_data.dptr != NULL)
	      {
		temp++;
		return_data = nextkey (return_data);
	      }
	    printf ("There are %d items in the database.\n\n", temp);
	  }
	  break;

	case '?':
	  printf ("c - count elements\n");
	  printf ("d - delete\n");
	  printf ("f - fetch\n");
	  printf ("q - quit\n");
	  printf ("s - store\n");
	  printf ("1 - firstkey\n");
	  printf ("2 - nextkey on last return value\n\n");
	  break;

	default:
	  printf("What? \n\n");
	  break;

	}
    }

  /* Quit normally. */
  exit(0);

}