directory-handle: query if instance is backed by a file descriptor

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

diff --git a/src/common/compat/directory-handle.c b/src/common/compat/directory-handle.c
index 15ee5b5de68902cc0933209337c41dd1122df898..729f69cb9ca41060cd4503f6fc70338a10ffe4bc 100644 (file)
--- a/src/common/compat/directory-handle.c
+++ b/src/common/compat/directory-handle.c
@@ -36,9 +36,6 @@
  * of the internal API below.
  */
 static
-int lttng_directory_handle_stat(const struct lttng_directory_handle *handle,
-               const char *path, struct stat *st);
-static
 int lttng_directory_handle_mkdir(
                const struct lttng_directory_handle *handle,
                const char *path, mode_t mode);
@@ -244,13 +241,20 @@ void lttng_directory_handle_invalidate(struct lttng_directory_handle *handle)
        handle->dirfd = -1;
 }
 
-static
+LTTNG_HIDDEN
 int lttng_directory_handle_stat(const struct lttng_directory_handle *handle,
                const char *path, struct stat *st)
 {
        return fstatat(handle->dirfd, path, st, 0);
 }
 
+LTTNG_HIDDEN
+bool lttng_directory_handle_uses_fd(
+               const struct lttng_directory_handle *handle)
+{
+       return handle->dirfd != AT_FDCWD;
+}
+
 static
 int lttng_directory_handle_mkdir(
                const struct lttng_directory_handle *handle,
@@ -602,7 +606,7 @@ void lttng_directory_handle_invalidate(struct lttng_directory_handle *handle)
        handle->base_path = NULL;
 }
 
-static
+LTTNG_HIDDEN
 int lttng_directory_handle_stat(const struct lttng_directory_handle *handle,
                const char *subdirectory, struct stat *st)
 {
@@ -620,6 +624,13 @@ end:
        return ret;
 }
 
+LTTNG_HIDDEN
+bool lttng_directory_handle_uses_fd(
+               const struct lttng_directory_handle *handle)
+{
+       return false;
+}
+
 static
 int lttng_directory_handle_mkdir(const struct lttng_directory_handle *handle,
                const char *subdirectory, mode_t mode)