/* sample-mdb.txt - MDB toy/sample * * Do a line-by-line comparison of this and sample-bdb.txt */ /* * Copyright 2015-2017 Leonid Yuriev . * Copyright 2012-2015 Howard Chu, Symas Corp. * Copyright 2015,2016 Peter-Service R&D LLC. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted only as authorized by the OpenLDAP * Public License. * * A copy of this license is available in the file LICENSE in the * top-level directory of the distribution or, alternatively, at * . */ #include #include "mdbx.h" int main(int argc,char * argv[]) { int rc; MDBX_env *env; MDBX_dbi dbi; MDBX_val key, data; MDBX_txn *txn; MDBX_cursor *cursor; char sval[32]; /* Note: Most error checking omitted for simplicity */ rc = mdbx_env_create(&env); rc = mdbx_env_open(env, "./testdb", 0, 0664); rc = mdbx_txn_begin(env, NULL, 0, &txn); rc = mdbx_dbi_open(txn, NULL, 0, &dbi); key.iov_len = sizeof(int); key.iov_base = sval; data.iov_len = sizeof(sval); data.iov_base = sval; sprintf(sval, "%03x %d foo bar", 32, 3141592); rc = mdbx_put(txn, dbi, &key, &data, 0); rc = mdbx_txn_commit(txn); if (rc) { fprintf(stderr, "mdbx_txn_commit: (%d) %s\n", rc, mdbx_strerror(rc)); goto leave; } rc = mdbx_txn_begin(env, NULL, MDBX_RDONLY, &txn); rc = mdbx_cursor_open(txn, dbi, &cursor); while ((rc = mdbx_cursor_get(cursor, &key, &data, MDBX_NEXT)) == 0) { printf("key: %p %.*s, data: %p %.*s\n", key.iov_base, (int) key.iov_len, (char *) key.iov_base, data.iov_base, (int) data.iov_len, (char *) data.iov_base); } mdbx_cursor_close(cursor); mdbx_txn_abort(txn); leave: mdbx_dbi_close(env, dbi); mdbx_env_close(env); return 0; }