Import BSDDB 4.7.25 (as of svn r89086)

2017-09-04 13:40:25 -05:00
parent 4b29e0458f
commit 8f590873d0
4781 changed files with 2241032 additions and 6 deletions
--- a/examples_c/ex_sequence.c
+++ b/examples_c/ex_sequence.c
@@ -0,0 +1,133 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1997,2008 Oracle.  All rights reserved.
+ *
+ * $Id: ex_sequence.c 63573 2008-05-23 21:43:21Z trent.nelson $
+ */
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef _WIN32
+extern int getopt(int, char * const *, const char *);
+#else
+#include <unistd.h>
+#endif
+
+#include <db.h>
+
+#define	DATABASE	"sequence.db"
+#define	SEQUENCE	"my_sequence"
+int main __P((int, char *[]));
+int usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	extern int optind;
+	DB *dbp;
+	DB_SEQUENCE *seq;
+	DBT key;
+	int i, ret, rflag;
+	db_seq_t seqnum;
+	char ch;
+	const char *database, *progname = "ex_sequence";
+
+	dbp = NULL;
+	seq = NULL;
+
+	rflag = 0;
+	while ((ch = getopt(argc, argv, "r")) != EOF)
+		switch (ch) {
+		case 'r':
+			rflag = 1;
+			break;
+		case '?':
+		default:
+			return (usage());
+		}
+	argc -= optind;
+	argv += optind;
+
+	/* Accept optional database name. */
+	database = *argv == NULL ? DATABASE : argv[0];
+
+	/* Optionally discard the database. */
+	if (rflag)
+		(void)remove(database);
+
+	/* Create and initialize database object, open the database. */
+	if ((ret = db_create(&dbp, NULL, 0)) != 0) {
+		fprintf(stderr,
+		    "%s: db_create: %s\n", progname, db_strerror(ret));
+		return (EXIT_FAILURE);
+	}
+	dbp->set_errfile(dbp, stderr);
+	dbp->set_errpfx(dbp, progname);
+	if ((ret = dbp->open(dbp,
+	    NULL, database, NULL, DB_BTREE, DB_CREATE, 0664)) != 0) {
+		dbp->err(dbp, ret, "%s: open", database);
+		goto err;
+	}
+
+	if ((ret = db_sequence_create(&seq, dbp, 0)) != 0) {
+		dbp->err(dbp, ret, "db_sequence_create");
+		goto err;
+	}
+
+	memset(&key, 0, sizeof(DBT));
+	key.data = SEQUENCE;
+	key.size = (u_int32_t)strlen(SEQUENCE);
+
+	if ((ret = seq->open(seq, NULL, &key, DB_CREATE)) != 0) {
+		dbp->err(dbp, ret, "%s: DB_SEQUENCE->open", SEQUENCE);
+		goto err;
+	}
+
+	for (i = 0; i < 10; i++) {
+		if ((ret = seq->get(seq, NULL, 1, &seqnum, 0)) != 0) {
+			dbp->err(dbp, ret, "DB_SEQUENCE->get");
+			goto err;
+		}
+
+		/* There's no portable way to print 64-bit numbers. */
+#ifdef _WIN32
+		printf("Got sequence number %I64d\n", (int64_t)seqnum);
+#else
+		printf(
+		    "Got sequence number %llu\n", (unsigned long long)seqnum);
+#endif
+	}
+
+	/* Close everything down. */
+	if ((ret = seq->close(seq, 0)) != 0) {
+		seq = NULL;
+		dbp->err(dbp, ret, "DB_SEQUENCE->close");
+		goto err;
+	}
+	if ((ret = dbp->close(dbp, 0)) != 0) {
+		fprintf(stderr,
+		    "%s: DB->close: %s\n", progname, db_strerror(ret));
+		return (EXIT_FAILURE);
+	}
+	return (EXIT_SUCCESS);
+
+err:	if (seq != NULL)
+		(void)seq->close(seq, 0);
+	if (dbp != NULL)
+		(void)dbp->close(dbp, 0);
+	return (EXIT_FAILURE);
+}
+
+int
+usage()
+{
+	(void)fprintf(stderr, "usage: ex_sequence [-r] [database]\n");
+	return (EXIT_FAILURE);
+}