X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fhandle.h;h=14a0e54072a0fb570a7c61ad5cd1f01a056f5c14;hb=11927a7859022cf38a4153767cc96fda4987070d;hp=b1057efe530bc2865bbc3a2dad6d1a5c75b36a31;hpb=1239a312e7e0e4c33948fdaf04e7637cb93c8b10;p=lttng-tools.git

diff --git a/include/lttng/handle.h b/include/lttng/handle.h
index b1057efe5..14a0e5407 100644
--- a/include/lttng/handle.h
+++ b/include/lttng/handle.h
@@ -1,24 +1,15 @@
 /*
- * Copyright (C) 2014 - David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2014 David Goulet <dgoulet@efficios.com>
  *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This library 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 Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef LTTNG_HANDLE_H
 #define LTTNG_HANDLE_H
 
 #include <lttng/domain.h>
+#include <lttng/lttng-export.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -29,9 +20,9 @@ extern "C" {
  *
  * The structures should be initialized to zero before use.
  */
-#define LTTNG_HANDLE_PADDING1              16
+#define LTTNG_HANDLE_PADDING1 16
 struct lttng_handle {
-	char session_name[NAME_MAX];
+	char session_name[LTTNG_NAME_MAX];
 	struct lttng_domain domain;
 
 	char padding[LTTNG_HANDLE_PADDING1];
@@ -43,19 +34,22 @@ struct lttng_handle {
  * This handle contains the session name and domain on which the command will
  * be executed. A domain is basically a tracer like the kernel or user space.
  *
- * Return an newly allocated handle that should be freed using
+ * A NULL domain indicates that the handle is not bound to a specific domain.
+ * This is mostly used for actions that apply on a session and not on a domain
+ * (e.g lttng_set_consumer_url).
+ *
+ * Return a newly allocated handle that should be freed using
  * lttng_destroy_handle. On error, NULL is returned.
  */
-extern struct lttng_handle *lttng_create_handle(const char *session_name,
-		struct lttng_domain *domain);
+LTTNG_EXPORT extern struct lttng_handle *lttng_create_handle(const char *session_name,
+							     struct lttng_domain *domain);
 
 /*
  * Destroy an handle that has been previously created with lttng_create_handle.
  *
  * It free the given pointer making it unusable.
  */
-extern void lttng_destroy_handle(struct lttng_handle *handle);
-
+LTTNG_EXPORT extern void lttng_destroy_handle(struct lttng_handle *handle);
 
 #ifdef __cplusplus
 }