X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fcompat%2Fdirectory-handle.h;h=24f1e6f6810b318ac8ab8e0b26decdddcc388260;hb=5c504c41e4d470012cb98c849aa82086d1ba1bde;hp=5974e36e35538cac553dd22daf81b1d24aba9410;hpb=cbf53d23cecaca9c6ec71582663c4a8254a9f285;p=lttng-tools.git

diff --git a/src/common/compat/directory-handle.h b/src/common/compat/directory-handle.h
index 5974e36e3..24f1e6f68 100644
--- a/src/common/compat/directory-handle.h
+++ b/src/common/compat/directory-handle.h
@@ -1,25 +1,16 @@
 /*
- * Copyright (C) 2019 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright (C) 2019 Jérémie Galarneau <jeremie.galarneau@efficios.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef _COMPAT_DIRECTORY_HANDLE_H
 #define _COMPAT_DIRECTORY_HANDLE_H
 
-#include <common/macros.h>
 #include <common/credentials.h>
+#include <common/macros.h>
+#include <sys/stat.h>
 #include <urcu/ref.h>
 
 enum lttng_directory_handle_rmdir_recursive_flags {
@@ -34,10 +25,19 @@ enum lttng_directory_handle_rmdir_recursive_flags {
  * This wrapper provides a handle that is either a copy of a directory's path
  * or a directory file descriptors, depending on the platform's capabilities.
  */
-#ifdef COMPAT_DIRFD
+#ifdef HAVE_DIRFD
+
+struct lttng_directory_handle;
+
+typedef void (*lttng_directory_handle_destroy_cb)(
+		struct lttng_directory_handle *handle, void *data);
+
 struct lttng_directory_handle {
 	struct urcu_ref ref;
+	ino_t directory_inode;
 	int dirfd;
+	lttng_directory_handle_destroy_cb destroy_cb;
+	void *destroy_cb_data;
 };
 
 static inline
@@ -256,4 +256,30 @@ int lttng_directory_handle_remove_subdirectory_recursive_as_user(
 		const struct lttng_credentials *creds,
 		int flags);
 
+/*
+ * stat() a file relative to a directory handle.
+ */
+LTTNG_HIDDEN
+int lttng_directory_handle_stat(
+		const struct lttng_directory_handle *handle,
+		const char *name,
+		struct stat *stat_buf);
+
+/*
+ * Returns true if this directory handle is backed by a file
+ * descriptor, false otherwise.
+ */
+LTTNG_HIDDEN
+bool lttng_directory_handle_uses_fd(
+		const struct lttng_directory_handle *handle);
+
+/*
+ * Compare two directory handles.
+ *
+ * Returns true if the two directory handles are equal, false otherwise.
+ */
+LTTNG_HIDDEN
+bool lttng_directory_handle_equals(const struct lttng_directory_handle *lhs,
+		const struct lttng_directory_handle *rhs);
+
 #endif /* _COMPAT_PATH_HANDLE_H */