4 * tdb - The trivial (transactional) database
6 * The tdb module provides an efficient keyword data mapping (usually
7 * within a file). It supports transactions, so the contents of the
8 * database is reliable even across crashes.
11 * #include <ccan/tdb/tdb.h>
12 * #include <ccan/str/str.h>
16 * static void usage(void)
18 * errx(1, "Usage: %s fetch <dbfile> <key>\n"
19 * "OR %s store <dbfile> <key> <data>");
22 * int main(int argc, char *argv[])
24 * struct tdb_context *tdb;
25 * TDB_DATA key, value;
30 * tdb = tdb_open(argv[2], 1024, TDB_DEFAULT, O_CREAT|O_RDWR,
33 * err(1, "Opening %s", argv[2]);
35 * key.dptr = (void *)argv[3];
36 * key.dsize = strlen(argv[3]);
38 * if (streq(argv[1], "fetch")) {
41 * value = tdb_fetch(tdb, key);
43 * errx(1, "fetch %s: %s",
44 * argv[3], tdb_errorstr(tdb));
45 * printf("%.*s\n", value.dsize, (char *)value.dptr);
47 * } else if (streq(argv[1], "store")) {
50 * value.dptr = (void *)argv[4];
51 * value.dsize = strlen(argv[4]);
52 * if (tdb_store(tdb, key, value, 0) != 0)
53 * errx(1, "store %s: %s",
54 * argv[3], tdb_errorstr(tdb));
61 * Maintainer: Rusty Russell <rusty@rustcorp.com.au>
63 * Author: Andrew Tridgell, Jeremy Allison, Rusty Russell
65 * Licence: LGPLv3 (or later)
67 int main(int argc, char *argv[])
72 if (strcmp(argv[1], "depends") == 0)