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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
commit5ea77a75dd2d2158401331879f3c8f47940a732c (patch)
treed89dc06e9f4850a900f161e25f84e922c4f86cc8 /libraries/liblmdb/mtest.c
parentInitial commit. (diff)
downloadopenldap-upstream.tar.xz
openldap-upstream.zip
Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'libraries/liblmdb/mtest.c')
-rw-r--r--libraries/liblmdb/mtest.c177
1 files changed, 177 insertions, 0 deletions
diff --git a/libraries/liblmdb/mtest.c b/libraries/liblmdb/mtest.c
new file mode 100644
index 0000000..c03daa1
--- /dev/null
+++ b/libraries/liblmdb/mtest.c
@@ -0,0 +1,177 @@
+/* mtest.c - memory-mapped database tester/toy */
+/*
+ * Copyright 2011-2021 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>.
+ */
+#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, *cur2;
+ MDB_cursor_op op;
+ 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_open(env, "./testdb", MDB_FIXEDMAP /*|MDB_NOSYNC*/, 0664));
+
+ E(mdb_txn_begin(env, NULL, 0, &txn));
+ E(mdb_dbi_open(txn, NULL, 0, &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]);
+ /* Set <data> in each iteration, since MDB_NOOVERWRITE may modify it */
+ data.mv_size = sizeof(sval);
+ data.mv_data = sval;
+ if (RES(MDB_KEYEXIST, mdb_put(txn, dbi, &key, &data, MDB_NOOVERWRITE))) {
+ j++;
+ data.mv_size = sizeof(sval);
+ data.mv_data = sval;
+ }
+ }
+ 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 last\n");
+ E(mdb_cursor_get(cursor, &key, &data, MDB_LAST));
+ printf("key: %.*s, data: %.*s\n",
+ (int) key.mv_size, (char *) key.mv_data,
+ (int) data.mv_size, (char *) data.mv_data);
+ 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");
+ printf("Cursor last/prev\n");
+ E(mdb_cursor_get(cursor, &key, &data, MDB_LAST));
+ printf("key: %.*s, data: %.*s\n",
+ (int) key.mv_size, (char *) key.mv_data,
+ (int) data.mv_size, (char *) data.mv_data);
+ E(mdb_cursor_get(cursor, &key, &data, MDB_PREV));
+ printf("key: %.*s, data: %.*s\n",
+ (int) key.mv_size, (char *) key.mv_data,
+ (int) data.mv_size, (char *) data.mv_data);
+
+ mdb_cursor_close(cursor);
+ mdb_txn_abort(txn);
+
+ printf("Deleting with cursor\n");
+ E(mdb_txn_begin(env, NULL, 0, &txn));
+ E(mdb_cursor_open(txn, dbi, &cur2));
+ for (i=0; i<50; i++) {
+ if (RES(MDB_NOTFOUND, mdb_cursor_get(cur2, &key, &data, MDB_NEXT)))
+ break;
+ 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);
+ E(mdb_del(txn, dbi, &key, NULL));
+ }
+
+ printf("Restarting cursor in txn\n");
+ for (op=MDB_FIRST, i=0; i<=32; op=MDB_NEXT, i++) {
+ if (RES(MDB_NOTFOUND, mdb_cursor_get(cur2, &key, &data, op)))
+ break;
+ 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);
+ }
+ mdb_cursor_close(cur2);
+ E(mdb_txn_commit(txn));
+
+ printf("Restarting cursor outside txn\n");
+ E(mdb_txn_begin(env, NULL, 0, &txn));
+ E(mdb_cursor_open(txn, dbi, &cursor));
+ for (op=MDB_FIRST, i=0; i<=32; op=MDB_NEXT, i++) {
+ if (RES(MDB_NOTFOUND, mdb_cursor_get(cursor, &key, &data, op)))
+ break;
+ 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);
+ }
+ mdb_cursor_close(cursor);
+ mdb_txn_abort(txn);
+
+ mdb_dbi_close(env, dbi);
+ mdb_env_close(env);
+
+ return 0;
+}