diff options
Diffstat (limited to 'examples/c/ex_env.c')
| -rw-r--r-- | examples/c/ex_env.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/examples/c/ex_env.c b/examples/c/ex_env.c index dfc436d6..80c66e89 100644 --- a/examples/c/ex_env.c +++ b/examples/c/ex_env.c @@ -1,13 +1,14 @@ /*- * See the file LICENSE for redistribution information. * - * Copyright (c) 1996, 2012 Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 1996, 2015 Oracle and/or its affiliates. All rights reserved. * * $Id$ */ #include <sys/types.h> +#include <errno.h> #include <stddef.h> #include <stdio.h> #include <stdlib.h> @@ -25,6 +26,8 @@ int db_teardown __P((const char *, const char *, FILE *, const char *)); static int usage __P((void)); const char *progname = "ex_env"; /* Program name. */ +int EnvFlags = + DB_CREATE | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_TXN; /* * An example of a program creating/configuring a Berkeley DB environment. @@ -37,15 +40,15 @@ main(argc, argv) extern char *optarg; extern int optind; const char *data_dir, *home; - int ch; + /* * All of the shared database files live in home, but * data files will live in data_dir. */ home = "TESTDIR"; data_dir = "data"; - while ((ch = getopt(argc, argv, "h:d:")) != EOF) + while ((ch = getopt(argc, argv, "h:d:l")) != EOF) switch (ch) { case 'h': home = optarg; @@ -53,6 +56,9 @@ main(argc, argv) case 'd': data_dir = optarg; break; + case 'l': + EnvFlags |= DB_LOCKDOWN; + break; case '?': default: return (usage()); @@ -108,10 +114,12 @@ db_setup(home, data_dir, errfp, progname) (void)dbenv->set_data_dir(dbenv, data_dir); /* Open the environment with full transactional support. */ - if ((ret = dbenv->open(dbenv, home, - DB_CREATE | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_MPOOL | - DB_INIT_TXN, 0644)) != 0) { + if ((ret = dbenv->open(dbenv, home, EnvFlags, 0644)) != 0) { dbenv->err(dbenv, ret, "environment open: %s", home); + if (ret == ENOENT) { + printf("Please check whether home dir \"%s\" existed.\n", + home); + } dbenv->close(dbenv, 0); return (1); } @@ -129,8 +137,12 @@ db_setup(home, data_dir, errfp, progname) /* Open a database with DB_BTREE access method. */ if ((ret = dbp->open(dbp, NULL, "exenv_db1.db", NULL, - DB_BTREE, DB_CREATE,0644)) != 0) { + DB_BTREE, DB_CREATE, 0644)) != 0) { fprintf(stderr, "database open: %s\n", db_strerror(ret)); + if (ret == ENOENT) { + printf("Please check whether data dir \"%s\" " + "exists under \"%s\".\n", data_dir, home); + } return (1); } @@ -178,6 +190,6 @@ static int usage() { (void)fprintf(stderr, - "usage: %s [-h home] [-d data_dir]\n", progname); + "usage: %s [-l] [-h home] [-d data_dir]\n", progname); return (EXIT_FAILURE); } |