From 7d678832a798d1facba6b53a4f83b4628a44a80e Mon Sep 17 00:00:00 2001
From: Howard Chu <hyc@symas.com>
Date: Tue, 28 Jun 2011 02:43:49 -0700
Subject: [PATCH] Cursor testing

---
 libraries/libmdb/mtest.c | 38 +++++++++++++++++++++++++++++++++-----
 1 file changed, 33 insertions(+), 5 deletions(-)

diff --git a/libraries/libmdb/mtest.c b/libraries/libmdb/mtest.c
index f99beb82a0..726c8ed954 100644
--- a/libraries/libmdb/mtest.c
+++ b/libraries/libmdb/mtest.c
@@ -5,19 +5,20 @@
 
 int main(int argc,char * argv[])
 {
-	int i = 0, rc;
+	int i = 0, j = 0, rc;
 	MDB_env *env;
 	MDB_db *db;
 	MDB_val key, data;
 	MDB_txn *txn;
 	MDB_stat *mst;
+	MDB_cursor *cursor;
 	int count;
 	int *values;
 	char sval[32];
 
 	srandom(time(NULL));
 
-	    count = random()%512;		
+	    count = (random()%384) + 64;
 	    values = (int *)malloc(count*sizeof(int));
 
 	    for(i = 0;i<count;i++) {
@@ -34,21 +35,48 @@ int main(int argc,char * argv[])
 		data.mv_size = sizeof(sval);
 		data.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]);
-			mdb_put(db, txn, &key, &data, 0);
-	    }		
+			rc = mdb_put(db, txn, &key, &data, MDB_NOOVERWRITE);
+			if (rc) j++;
+	    }
+		if (j) printf("%d duplicates skipped\n", j);
 		rc = mdb_txn_commit(txn);
 		rc = mdbenv_stat(env, &mst);
 
+		rc = mdb_cursor_open(db, NULL, &cursor);
+		while (rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT) == 0) {
+			printf("key: %.*s, data: %.*s\n",
+				key.mv_size, key.mv_data, data.mv_size, data.mv_data);
+		}
+		mdb_cursor_close(cursor);
+
+		j=0;
 	    for (i= count - 1; i > -1; i-= (random()%5)) {	
+			j++;
 			rc = mdb_txn_begin(env, 0, &txn);
+			key.mv_data = sval;
 			sprintf(sval, "%03x ", values[i]);
 			rc = mdb_del(db, txn, &key, NULL);
-			rc = mdb_txn_commit(txn);
+			if (rc) {
+				j--;
+				mdb_txn_abort(txn);
+			} else {
+				rc = mdb_txn_commit(txn);
+			}
 	    }
 	    free(values);
+		printf("Deleted %d values\n", j);
+
 		rc = mdbenv_stat(env, &mst);
+		rc = mdb_cursor_open(db, NULL, &cursor);
+		while (rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT) == 0) {
+			printf("key: %.*s, data: %.*s\n",
+				key.mv_size, key.mv_data, data.mv_size, data.mv_data);
+		}
+		mdb_cursor_close(cursor);
+
 		mdb_close(db);
 		mdbenv_close(env);
 
-- 
2.39.5