1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/libcephfs/ceph_pthread_self.h b/src/test/libcephfs/ceph_pthread_self.h
new file mode 100644
index 00000000..4c0c98f6
--- /dev/null
+++ b/src/test/libcephfs/ceph_pthread_self.h
@@ -0,0 +1,31 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_TEST_LIBCEPHFS_PTHREAD_SELF
+#define CEPH_TEST_LIBCEPHFS_PTHREAD_SELF
+
+#include <pthread.h>
+
+#include <type_traits>
+
+/*
+ * There is a  difference between libc shipped with FreeBSD and
+ * glibc shipped with GNU/Linux for the return type of pthread_self().
+ *
+ * Introduced a conversion function in include/compat.h
+ *     (uint64_t)ceph_pthread_self()
+ *
+ * libc returns an opague pthread_t that is not default convertable
+ * to a uint64_t, which is what gtest expects.
+ * And tests using gtest will not compile because of this difference.
+ * 
+ */
+static uint64_t ceph_pthread_self() {
+  auto me = pthread_self();
+  static_assert(std::is_convertible_v<decltype(me), uint64_t> ||
+                std::is_pointer_v<decltype(me)>,
+                "we need to use pthread_self() for the owner parameter");
+  return reinterpret_cast<uint64_t>(me);
+}
+
+#endif