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#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "db_185.h"
void err(char *);
int mycmp(const DBT *, const DBT *);
void ops(DB *, int);
int
main()
{
DB *dbp;
HASHINFO h_info;
BTREEINFO b_info;
RECNOINFO r_info;
printf("\tBtree...\n");
memset(&b_info, 0, sizeof(b_info));
b_info.flags = R_DUP;
b_info.cachesize = 100 * 1024;
b_info.psize = 512;
b_info.lorder = 4321;
b_info.compare = mycmp;
(void)remove("a.db");
if ((dbp =
dbopen("a.db", O_CREAT | O_RDWR, 0664, DB_BTREE, &b_info)) == NULL)
err("dbopen: btree");
ops(dbp, DB_BTREE);
printf("\tHash...\n");
memset(&h_info, 0, sizeof(h_info));
h_info.bsize = 512;
h_info.ffactor = 6;
h_info.nelem = 1000;
h_info.cachesize = 100 * 1024;
h_info.lorder = 1234;
(void)remove("a.db");
if ((dbp =
dbopen("a.db", O_CREAT | O_RDWR, 0664, DB_HASH, &h_info)) == NULL)
err("dbopen: hash");
ops(dbp, DB_HASH);
printf("\tRecno...\n");
memset(&r_info, 0, sizeof(r_info));
r_info.flags = R_FIXEDLEN;
r_info.cachesize = 100 * 1024;
r_info.psize = 1024;
r_info.reclen = 37;
(void)remove("a.db");
if ((dbp =
dbopen("a.db", O_CREAT | O_RDWR, 0664, DB_RECNO, &r_info)) == NULL)
err("dbopen: recno");
ops(dbp, DB_RECNO);
return (0);
}
int
mycmp(a, b)
const DBT *a, *b;
{
size_t len;
u_int8_t *p1, *p2;
len = a->size > b->size ? b->size : a->size;
for (p1 = a->data, p2 = b->data; len--; ++p1, ++p2)
if (*p1 != *p2)
return ((long)*p1 - (long)*p2);
return ((long)a->size - (long)b->size);
}
void
ops(dbp, type)
DB *dbp;
int type;
{
FILE *outfp;
DBT key, data;
recno_t recno;
int i, ret;
char buf[64];
memset(&key, 0, sizeof(key));
memset(&data, 0, sizeof(data));
for (i = 1; i < 100; ++i) { /* Test DB->put. */
sprintf(buf, "abc_%d_efg", i);
if (type == DB_RECNO) {
recno = i;
key.data = &recno;
key.size = sizeof(recno);
} else {
key.data = data.data = buf;
key.size = data.size = strlen(buf);
}
data.data = buf;
data.size = strlen(buf);
if (dbp->put(dbp, &key, &data, 0))
err("DB->put");
}
if (type == DB_RECNO) { /* Test DB->get. */
recno = 97;
key.data = &recno;
key.size = sizeof(recno);
} else {
key.data = buf;
key.size = strlen(buf);
}
sprintf(buf, "abc_%d_efg", 97);
if (dbp->get(dbp, &key, &data, 0) != 0)
err("DB->get");
if (memcmp(data.data, buf, strlen(buf)))
err("DB->get: wrong data returned");
if (type == DB_RECNO) { /* Test DB->put no-overwrite. */
recno = 42;
key.data = &recno;
key.size = sizeof(recno);
} else {
key.data = buf;
key.size = strlen(buf);
}
sprintf(buf, "abc_%d_efg", 42);
if (dbp->put(dbp, &key, &data, R_NOOVERWRITE) == 0)
err("DB->put: no-overwrite succeeded");
if (type == DB_RECNO) { /* Test DB->del. */
recno = 35;
key.data = &recno;
key.size = sizeof(recno);
} else {
sprintf(buf, "abc_%d_efg", 35);
key.data = buf;
key.size = strlen(buf);
}
if (dbp->del(dbp, &key, 0))
err("DB->del");
/* Test DB->seq. */
if ((outfp = fopen("output", "w")) == NULL)
err("fopen: output");
while ((ret = dbp->seq(dbp, &key, &data, R_NEXT)) == 0) {
if (type == DB_RECNO)
fprintf(outfp, "%d\n", *(int *)key.data);
else
fprintf(outfp,
"%.*s\n", (int)key.size, (char *)key.data);
fprintf(outfp, "%.*s\n", (int)data.size, (char *)data.data);
}
if (ret != 1)
err("DB->seq");
fclose(outfp);
switch (type) {
case DB_BTREE:
ret = system("cmp output O.BH");
break;
case DB_HASH:
ret = system("sort output | cmp - O.BH");
break;
case DB_RECNO:
ret = system("cmp output O.R");
break;
}
if (ret != 0)
err("output comparison failed");
if (dbp->sync(dbp, 0)) /* Test DB->sync. */
err("DB->sync");
if (dbp->close(dbp)) /* Test DB->close. */
err("DB->close");
}
void
err(s)
char *s;
{
fprintf(stderr, "\t%s: %s\n", s, strerror(errno));
exit (1);
}
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