struct lttng_directory_handle {
int dirfd;
};
+
+static inline
+int lttng_directory_handle_get_dirfd(
+ const struct lttng_directory_handle *handle)
+{
+ return handle->dirfd;
+}
+
#else
struct lttng_directory_handle {
char *base_path;
/*
* Initialize a directory handle to the provided path. Passing a NULL path
- * returns a handle to the current working directory. The working directory
- * is not sampled; it will be accessed at the time of use of the functions
- * of this API.
+ * returns a handle to the current working directory.
*
* An initialized directory handle must be finalized using
* lttng_directory_handle_fini().
int lttng_directory_handle_init(struct lttng_directory_handle *handle,
const char *path);
+/*
+ * Initialize a new directory handle to a path relative to an existing handle.
+ *
+ * The provided path must already exist. Note that the creation of a
+ * subdirectory and the creation of a handle are kept as separate operations
+ * to highlight the fact that there is an inherent race between the creation of
+ * a directory and the creation of a handle to it.
+ *
+ * Passing a NULL path effectively copies the original handle.
+ *
+ * An initialized directory handle must be finalized using
+ * lttng_directory_handle_fini().
+ */
+LTTNG_HIDDEN
+int lttng_directory_handle_init_from_handle(
+ struct lttng_directory_handle *new_handle,
+ const char *path,
+ const struct lttng_directory_handle *handle);
+
/*
* Initialize a new directory handle from an existing directory fd.
*