Category : C Source Code
Archive   : C_DBFS.ZIP
Filename : VTEST.C

 
Output of file : VTEST.C contained in archive : C_DBFS.ZIP
/****************************************************************************/
/* */
/* */
/* vtest.c v1.3 (c) 1990 Ken Harris */
/* */
/* */
/****************************************************************************/
/* */
/* This software is made available on an AS-IS basis. Unrestricted */
/* use is granted provided that the copyright notice remains intact. */
/* The author makes no warranties expressed or implied. */
/* */
/****************************************************************************/

#include
#include "db.h"

main()
{
DATA_SET ds;
char data[50];
int i, size;
long psn;

printf("vtest - Test variable file routines\n\n");
vcreate();
printf("...test file created...\n\n");

ds = db_open("", "vtest.dat");
if (db_error)
{ printf("Open Failure - %s\n", db_error_msg(db_error));
exit(0);
}

printf("...adding 100 records...\n");
for (i=1; i<=100; i++)
{ sprintf(data,"%06d",i);
psn = db_add(ds, data, 6);
printf("%d (psn=%ld)\n",i,psn);

if (db_error)
{ printf("Add Failure - %s\n", db_error_msg(db_error));
exit(0);
}

}
printf("...add complete...\n\n");

printf("...reorg...\n");
db_reorg(ds);
if (db_error) printf("Reorg Failure - %s\n", db_error_msg(db_error));
printf("...reorg complete...\n");

printf("...read forward...\n");
db_read_first(ds, data, &size);
while (!db_error)
{ psn = db_get_rec_no(ds);
printf("%6.6s (size=%d psn=%ld)\n", data, size, psn);
data[0] = '_';
db_update(ds, data);
db_read_next(ds, data, &size);
}
printf("...read forward complete...\n\n");

printf("...reorg...\n");
db_reorg(ds);
if (db_error) printf("Reorg Failure - %s\n", db_error_msg(db_error));
printf("...reorg complete...\n");

printf("...read reverse...\n");
db_read_last(ds, data, &size);
while (!db_error)
{ psn = db_get_rec_no(ds);
db_read_direct(ds, psn, data, &size);
if (db_error)
{ printf("%s\n",db_error_msg(db_error));
break;
}
printf("%6.6s (size=%d psn=%ld)\n", data, size, psn);
db_read_prev(ds, data, &size);
}
printf("...read reverse complete...\n\n");

printf("...reorg...\n");
db_reorg(ds);
if (db_error) printf("Reorg Failure - %s\n", db_error_msg(db_error));
printf("...reorg complete...\n");

printf("...delete forward...\n");
db_read_first(ds, data, &size);
while (!db_error)
{ printf("%6.6s\n", data);
db_delete(ds);
db_read_next(ds, data, &size);
}
printf("...delete forward complete...\n\n");

printf("...reorg...\n");
db_reorg(ds);
if (db_error) printf("Reorg Failure - %s\n", db_error_msg(db_error));
printf("...reorg complete...\n");

printf("...read forward...\n");
db_read_first(ds, data, &size);
while (!db_error)
{ printf("%6.6s (%d)\n", data, size);
db_read_next(ds, data, &size);
}
printf("...read forward complete...\n\n");

printf("...read reverse...\n");
db_read_last(ds, data, &size);
while (!db_error)
{ printf("%6.6s (%d)\n", data, size);
db_read_prev(ds, data, &size);
}
printf("...read reverse complete...\n\n");

printf("...adding 100 records (again) ...\n");
for (i=1; i<=100; i++)
{ printf("%d\n",i);
sprintf(data,"%06d",i);
db_add(ds, data, 6);
if (db_error)
{ printf("Add Failure - %s\n", db_error_msg(db_error));
exit(0);
}
}
printf("...add complete...\n\n");

printf("...read forward...\n");
db_read_first(ds, data, &size);
while (!db_error)
{ printf("%6.6s (%d)\n", data, size);
db_read_next(ds, data, &size);
}
printf("...read forward complete...\n\n");

printf("...delete reverse...\n");
db_read_last(ds, data, &size);
while (!db_error)
{ printf("%6.6s (%d)\n", data, size);
db_delete(ds);
db_read_prev(ds, data, &size);
}
printf("...delete reverse complete...\n\n");

printf("...read forward...\n");
db_read_first(ds, data, &size);
while (!db_error)
{ printf("%6.6s (%d)\n", data, size);
db_read_next(ds, data, &size);
}
printf("...read forward complete...\n\n");

printf("...reorg...\n");
db_reorg(ds);
if (db_error) printf("Reorg Failure - %s\n", db_error_msg(db_error));
printf("...reorg complete...\n");

db_close(ds);
unlink("vtest.dat");
}

/*
* vcreate - create our test variable file
*/

vcreate()
{
DATA_SET ds;


ds = db_create("", "vtest.dat", "var,rec=50");
if (db_error)
{ printf("Create Failure - %s\n", db_error_msg(db_error));
exit(0);
}

db_close(ds);
if (db_error)
{ printf("Close Failure - %s\n", db_error_msg(db_error));
exit(0);
}
}


  3 Responses to “Category : C Source Code
Archive   : C_DBFS.ZIP
Filename : VTEST.C

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