void doit(char *pathname)
{
DB *db;
char key[IDXLEN_MAX], *ptr;
hash_t hash;
int i, nrec;
if ( (db = db_open(pathname, O_RDONLY, 0)) == NULL)
err_sys("db_open error");
nrec = 0;
while ( (ptr = db_nextrec(db, key)) != NULL) {
nrec++;
hash = _db_hash(db, key);
cntr[hash]++;
}
printf("total #records = %d\n", nrec);
for (i = 0; i < NHASH_DEF; i++) {
printf("%3d: %6ld\n", i, cntr[i]);
}
if ( (i = _db_checkfree(db)) < 0)
printf("corrupted free list\n");
else
printf("%d records on free list\n", i);
exit(0);
}
int main(int argc, char **argv) {
DBHANDLE db;
int rc,c, flags, len;
char *ptr_command, *ptr_key, *find;
char *command, *key, *value;
command = key = value = NULL;
char *help_cmd = "command list:\n [add | update] key value \n [del | find] key \n [open | close] dbname\n [help count iterate exit]";
flags = O_RDWR;
while ((c = getopt(argc, argv, "nt?")) != -1) {
switch (c) {
case 'n':
flags |= O_CREAT;
break;
case 't':
flags |= O_TRUNC;
break;
case '?':
err_quit("usage: [-n] create new file [-t] truncate db <filename>");
break;
}
}
if (optind != argc - 1) {
err_quit("usage: [-n] create new file [-t] truncate db <filename>");
}
if ((db = db_open(argv[optind], flags, FILE_MODE)) == NULL) {
err_sys("db_open %s error", argv[optind]);
}
for (;;) {
char buf[MAX_LEN];
printf("APUEDB> ");
if (fgets(buf, MAX_LEN, stdin) == NULL) {
printf("Bye~\n");
exit(1);
}
to_lowercase(buf);
len = strlen(buf);
if ((ptr_command = strchr(buf,COMMAND_SEP)) == NULL) {
buf[len-1] = '\0';
if (strcmp(buf,"help") == 0) {
printf("%s\n", help_cmd);
continue;
} else if (strcmp(buf, "count") == 0) {
printf("%d\n", db_count(db));
} else if (strcmp(buf, "iterate") == 0) {
char *ptr;
db_rewind(db);
while ((ptr = db_nextrec(db, NULL)) != NULL) {
printf("%s\n", ptr);
}
continue;
} else if (strcmp(buf, "exit") == 0) {
printf("Bye~\n");
exit(1);
} else {
printf("invalid command, use command help for help\n");
continue;
}
}
command = strndup(buf, ptr_command - buf);
if (strcmp(command, "add") == 0) {
if ((ptr_key = strchr(ptr_command+1, COMMAND_SEP)) == NULL) {
printf("invalid add command, usage: add key value\n");
} else {
key = strndup(ptr_command+1, ptr_key - ptr_command - 1);
value = strndup(ptr_key+1, buf + len - 1 - ptr_key - 1);
rc = db_store(db, key, value, DB_INSERT);
if (rc == 0) {
printf("add +OK\n");
} else {
printf("key %s already exist\n", key);
}
}
} else if (strcmp(command, "update") == 0) {
if ((ptr_key = strchr(ptr_command+1, COMMAND_SEP)) == NULL) {
printf("invalid add command, usage: add key value\n");
} else {
key = strndup(ptr_command+1, ptr_key - ptr_command - 1);
value = strndup(ptr_key+1, buf + len - 1 - ptr_key - 1);
rc = db_store(db, key, value, DB_REPLACE);
if (rc == 0) {
printf("update +OK\n");
} else {
printf("key %s not found\n", key);
}
}
} else if (strcmp(command, "del") == 0) {
if ((ptr_key = strchr(ptr_command+1, COMMAND_SEP)) != NULL) {
printf("invalid del command, usage: del key\n");
continue;
}
key = strndup(ptr_command+1, buf + len - 1 - ptr_command -1);
rc = db_delete(db, key);
if (rc == 0) {
printf("del +OK\n");
} else {
printf("key %s not found\n", key);
}
} else if (strcmp(command, "find") == 0) {
if ((ptr_key = strchr(ptr_command+1, COMMAND_SEP)) != NULL) {
printf("invalid find command, usage: find key\n");
continue;
}
key = strndup(ptr_command+1, buf + len - 1 - ptr_command -1);
find = db_fetch(db, key);
if (find != NULL) {
printf("%d,%s\n", strlen(find), find);
} else {
printf("key %s not found\n", key);
}
}
if (key != NULL) {
free(key);
key = NULL;
}
if (command != NULL) {
free(command);
command = NULL;
}
if (value != NULL) {
free(value);
value = NULL;
}
}
}