1 files changed, 63 insertions, 0 deletions
diff --git a/src/test/libcephfs/readdir_r_cb.cc b/src/test/libcephfs/readdir_r_cb.cc
new file mode 100644
index 000000000..b85569472
--- /dev/null
+++ b/src/test/libcephfs/readdir_r_cb.cc
@@ -0,0 +1,63 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2011 New Dream Network
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#include "gtest/gtest.h"
+#include "include/cephfs/libcephfs.h"
+#include <errno.h>
+#include <fcntl.h>
+
+TEST(LibCephFS, ReaddirRCB) {
+  struct ceph_mount_info *cmount;
+  ASSERT_EQ(0, ceph_create(&cmount, NULL));
+  ASSERT_EQ(0, ceph_conf_read_file(cmount, NULL));
+  ASSERT_EQ(0, ceph_mount(cmount, "/"));
+
+  char c_dir[256];
+  sprintf(c_dir, "/readdir_r_cb_tests_%d", getpid());
+  struct ceph_dir_result *dirp;
+  ASSERT_EQ(0, ceph_mkdirs(cmount, c_dir, 0777));
+  ASSERT_LE(0, ceph_opendir(cmount, c_dir, &dirp));
+
+  // dir is empty, check that it only contains . and ..
+  int buflen = 100;
+  char *buf = new char[buflen];
+  // . is 2, .. is 3 (for null terminators)
+  ASSERT_EQ(5, ceph_getdnames(cmount, dirp, buf, buflen));
+  char c_file[256];
+  sprintf(c_file, "/readdir_r_cb_tests_%d/foo", getpid());
+  int fd = ceph_open(cmount, c_file, O_CREAT, 0777);
+  ASSERT_LT(0, fd);
+  ASSERT_EQ(0, ceph_close(cmount, fd));
+
+  // check correctness with one entry
+  ASSERT_LE(0, ceph_closedir(cmount, dirp));
+  ASSERT_LE(0, ceph_opendir(cmount, c_dir, &dirp));
+  ASSERT_EQ(9, ceph_getdnames(cmount, dirp, buf, buflen)); // ., .., foo
+
+  // check correctness if buffer is too small
+  ASSERT_LE(0, ceph_closedir(cmount, dirp));
+  ASSERT_GE(0, ceph_opendir(cmount, c_dir, &dirp));
+  ASSERT_EQ(-ERANGE, ceph_getdnames(cmount, dirp, buf, 1));
+
+  //check correctness if it needs to split listing
+  ASSERT_LE(0, ceph_closedir(cmount, dirp));
+  ASSERT_LE(0, ceph_opendir(cmount, c_dir, &dirp));
+  ASSERT_EQ(5, ceph_getdnames(cmount, dirp, buf, 6));
+  ASSERT_EQ(4, ceph_getdnames(cmount, dirp, buf, 6));
+
+  // free cmount after finishing testing
+  ASSERT_LE(0, ceph_closedir(cmount, dirp));
+  ASSERT_EQ(0, ceph_unmount(cmount));
+  ASSERT_EQ(0, ceph_release(cmount));
+}