Allow lttng_directory_handle to be moved

[lttng-tools.git] / src / common / compat / directory-handle.h

diff --git a/src/common/compat/directory-handle.h b/src/common/compat/directory-handle.h
index a24bbd8db9ffaff76eba111a81b9fd2cc5be2098..dad4299ca96c615c66dcf1ec7334a6b69f8d685b 100644 (file)
--- a/src/common/compat/directory-handle.h
+++ b/src/common/compat/directory-handle.h
@@ -55,6 +55,25 @@ LTTNG_HIDDEN
 int lttng_directory_handle_init_from_dirfd(
                struct lttng_directory_handle *handle, int dirfd);
 
+/*
+ * Copy a directory handle.
+ */
+LTTNG_HIDDEN
+int lttng_directory_handle_copy(const struct lttng_directory_handle *handle,
+               struct lttng_directory_handle *new_copy);
+
+/*
+ * Move a directory handle. The original directory handle may no longer be
+ * used after this call. This call cannot fail; directly assign the
+ * return value to the new directory handle.
+ *
+ * It is safe (but unnecessary) to call lttng_directory_handle_fini on the
+ * original handle.
+ */
+LTTNG_HIDDEN
+struct lttng_directory_handle
+lttng_directory_handle_move(struct lttng_directory_handle *original);
+
 /*
  * Release the resources of a directory handle.
  */
@@ -78,7 +97,7 @@ LTTNG_HIDDEN
 int lttng_directory_handle_create_subdirectory_as_user(
                const struct lttng_directory_handle *handle,
                const char *subdirectory,
-               mode_t mode, struct lttng_credentials *creds);
+               mode_t mode, const struct lttng_credentials *creds);
 
 /*
  * Recursively create a directory relative to a directory handle.
@@ -97,6 +116,6 @@ LTTNG_HIDDEN
 int lttng_directory_handle_create_subdirectory_recursive_as_user(
                const struct lttng_directory_handle *handle,
                const char *subdirectory_path,
-               mode_t mode, struct lttng_credentials *creds);
+               mode_t mode, const struct lttng_credentials *creds);
 
 #endif /* _COMPAT_PATH_HANDLE_H */