[PATCH obexd v3 1/3] MAP: Mark filter strings const

[Slawomir Bochenski <lkslawek@gmail.com>]

This structure is used for giving filters as input argument to
messages_get_messages_listing(). There is no need for the string members
to be modifiable in this context. And making them const plays well with
map_ap_get_string(), from which the values of these members are going to
be retrieved.

The string pointers here are simply references to data held in map_ap_t
*inparams.
---
v3: Add paragraph about pointers being references to data held in another data structure.
 plugins/messages.h |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/plugins/messages.h b/plugins/messages.h
index 00a040c..2cdd92f 100644
--- a/plugins/messages.h
+++ b/plugins/messages.h
@@ -111,11 +111,11 @@ struct messages_event {
 struct messages_filter {
 	uint32_t parameter_mask;
 	uint8_t type;
-	char *period_begin;
-	char *period_end;
+	const char *period_begin;
+	const char *period_end;
 	uint8_t read_status;
-	char *recipient;
-	char *originator;
+	const char *recipient;
+	const char *originator;
 	uint8_t priority;
 };
 
-- 
1.7.5.1