* const struct GNUNET_MessageTest *msg)
* { ... }
*
- * GNUNET_MQ_hd_fixed_size(test_message,
- * GNUNET_MESSAGE_TYPE_TEST,
- * struct GNUNET_MessageTest);
* struct GNUNET_MQ_MessageHandler handlers[] = {
- * make_test_message_handler (NULL),
+ * GNUNET_MQ_hd_fixed_size(test_message,
+ * GNUNET_MESSAGE_TYPE_TEST,
+ * struct GNUNET_MessageTest,
+ * "context"),
* GNUNET_MQ_handler_end()
* };
*
* @param name unique basename for the functions
* @param code message type constant
* @param str type of the message (a struct)
+ * @param ctx context for the callbacks
*/
-#define GNUNET_MQ_hd_fixed_size(name,code,str) \
- struct GNUNET_MQ_MessageHandler \
- make_##name##_handler (void *cls) { \
- void (*cb)(void *cls, const str *msg) = &handle_##name; \
- struct GNUNET_MQ_MessageHandler mh = { \
- NULL, (GNUNET_MQ_MessageCallback) cb, \
- cls, code, sizeof (str) }; \
- return mh; \
- }
+#define GNUNET_MQ_hd_fixed_size(name,code,str,ctx) \
+ ({ \
+ void (*_cb)(void *cls, const str *msg) = &handle_##name; \
+ ((struct GNUNET_MQ_MessageHandler) { \
+ NULL, (GNUNET_MQ_MessageCallback) _cb, \
+ (ctx), (code), sizeof (str) }); \
+ })
/**
* The macro is to be used as follows:
* <code>
* struct GNUNET_MessageTest { ... }; // can be variable size
- * GNUNET_MQ_hd_var_size(test_message,
- * GNUNET_MESSAGE_TYPE_TEST,
- * struct GNUNET_MessageTest);
* static int
* check_test (void *cls,
* const struct GNUNET_MessageTest *msg)
* }
*
* struct GNUNET_MQ_MessageHandler handlers[] = {
- * make_test_message_handler ("context"),
+ * GNUNET_MQ_hd_var_size(test_message,
+ * GNUNET_MESSAGE_TYPE_TEST,
+ * struct GNUNET_MessageTest,
+ * "context"),
* GNUNET_MQ_handler_end()
* };
*
* @param name unique basename for the functions
* @param code message type constant
* @param str type of the message (a struct)
+ * @param ctx context for the callbacks
*/
-#define GNUNET_MQ_hd_var_size(name,code,str) \
- struct GNUNET_MQ_MessageHandler \
- make_##name##_handler (void *ctx) { \
- int (*mv)(void *cls, const str *msg) = &check_##name; \
- void (*cb)(void *cls, const str *msg) = &handle_##name;\
- struct GNUNET_MQ_MessageHandler mh = \
- { (GNUNET_MQ_MessageValidationCallback) mv, \
- (GNUNET_MQ_MessageCallback) cb, \
- ctx, code, sizeof (str) }; \
- return mh; \
- }
+#define GNUNET_MQ_hd_var_size(name,code,str,ctx) \
+ ({ \
+ int (*_mv)(void *cls, const str *msg) = &check_##name; \
+ void (*_cb)(void *cls, const str *msg) = &handle_##name; \
+ ((struct GNUNET_MQ_MessageHandler) \
+ { (GNUNET_MQ_MessageValidationCallback) _mv, \
+ (GNUNET_MQ_MessageCallback) _cb, \
+ (ctx), (code), sizeof (str) }); \
+ })
/**
/**
- * Function to obtain the current envelope from
- * within #GNUNET_MQ_SendImpl implementations.
+ * Function to obtain the current envelope
+ * from within #GNUNET_MQ_SendImpl implementations.
*
* @param mq message queue to interrogate
* @return the current envelope
GNUNET_MQ_get_current_envelope (struct GNUNET_MQ_Handle *mq);
+/**
+ * Function to obtain the last envelope in the queue.
+ *
+ * @param mq message queue to interrogate
+ * @return the last envelope in the queue
+ */
+struct GNUNET_MQ_Envelope *
+GNUNET_MQ_get_last_envelope (struct GNUNET_MQ_Handle *mq);
+
+
/**
* Set application-specific options for this envelope.
* Overrides the options set for the queue with