1 files changed, 124 insertions, 0 deletions
diff --git a/libraries/liblmdb/mtest2.c b/libraries/liblmdb/mtest2.c
new file mode 100644
index 0000000..64b742a
--- /dev/null
+++ b/libraries/liblmdb/mtest2.c
@@ -0,0 +1,124 @@
+/* mtest2.c - memory-mapped database tester/toy */
+/*
+ * Copyright 2011-2018 Howard Chu, Symas Corp.
+ * 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
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+/* Just like mtest.c, but using a subDB instead of the main DB */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "lmdb.h"
+
+#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
+#define RES(err, expr) ((rc = expr) == (err) || (CHECK(!rc, #expr), 0))
+#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
+	"%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
+
+int main(int argc,char * argv[])
+{
+	int i = 0, j = 0, rc;
+	MDB_env *env;
+	MDB_dbi dbi;
+	MDB_val key, data;
+	MDB_txn *txn;
+	MDB_stat mst;
+	MDB_cursor *cursor;
+	int count;
+	int *values;
+	char sval[32] = "";
+
+	srand(time(NULL));
+
+	count = (rand()%384) + 64;
+	values = (int *)malloc(count*sizeof(int));
+
+	for(i = 0;i<count;i++) {
+		values[i] = rand()%1024;
+	}
+
+	E(mdb_env_create(&env));
+	E(mdb_env_set_maxreaders(env, 1));
+	E(mdb_env_set_mapsize(env, 10485760));
+	E(mdb_env_set_maxdbs(env, 4));
+	E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
+
+	E(mdb_txn_begin(env, NULL, 0, &txn));
+	E(mdb_dbi_open(txn, "id1", MDB_CREATE, &dbi));
+   
+	key.mv_size = sizeof(int);
+	key.mv_data = sval;
+
+	printf("Adding %d values\n", count);
+	for (i=0;i<count;i++) {	
+		sprintf(sval, "%03x %d foo bar", values[i], values[i]);
+		data.mv_size = sizeof(sval);
+		data.mv_data = sval;
+		if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NOOVERWRITE)))
+			j++;
+	}
+	if (j) printf("%d duplicates skipped\n", j);
+	E(mdb_txn_commit(txn));
+	E(mdb_env_stat(env, &mst));
+
+	E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
+	E(mdb_cursor_open(txn, dbi, &cursor));
+	while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
+		printf("key: %p %.*s, data: %p %.*s\n",
+			key.mv_data,  (int) key.mv_size,  (char *) key.mv_data,
+			data.mv_data, (int) data.mv_size, (char *) data.mv_data);
+	}
+	CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
+	mdb_cursor_close(cursor);
+	mdb_txn_abort(txn);
+
+	j=0;
+	key.mv_data = sval;
+	for (i= count - 1; i > -1; i-= (rand()%5)) {
+		j++;
+		txn=NULL;
+		E(mdb_txn_begin(env, NULL, 0, &txn));
+		sprintf(sval, "%03x ", values[i]);
+		if (RES(MDB_NOTFOUND, mdb_del(txn, dbi, &key, NULL))) {
+			j--;
+			mdb_txn_abort(txn);
+		} else {
+			E(mdb_txn_commit(txn));
+		}
+	}
+	free(values);
+	printf("Deleted %d values\n", j);
+
+	E(mdb_env_stat(env, &mst));
+	E(mdb_txn_begin(env, NULL, MDB_RDONLY, &txn));
+	E(mdb_cursor_open(txn, dbi, &cursor));
+	printf("Cursor next\n");
+	while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
+		printf("key: %.*s, data: %.*s\n",
+			(int) key.mv_size,  (char *) key.mv_data,
+			(int) data.mv_size, (char *) data.mv_data);
+	}
+	CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
+	printf("Cursor prev\n");
+	while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_PREV)) == 0) {
+		printf("key: %.*s, data: %.*s\n",
+			(int) key.mv_size,  (char *) key.mv_data,
+			(int) data.mv_size, (char *) data.mv_data);
+	}
+	CHECK(rc == MDB_NOTFOUND, "mdb_cursor_get");
+	mdb_cursor_close(cursor);
+	mdb_txn_abort(txn);
+
+	mdb_dbi_close(env, dbi);
+	mdb_env_close(env);
+	return 0;
+}