13 #define __pubsub_start_sym(event)	__pubsub_##event##_start  argument
14 #define __pubsub_end_sym(event)		__pubsub_##event##_end  argument
15 #define __pubsub_section(event)		__pubsub_##event  argument
19  * contexts. In linker context, this collects pubsub sections for each event,
23 #define REGISTER_PUBSUB_EVENT(event) \  argument
24 	__pubsub_start_sym(event) +0 FIXED \
26 		*(__pubsub_section(event)) \
28 	__pubsub_end_sym(event) +0 FIXED EMPTY 0 \
33 #define REGISTER_PUBSUB_EVENT(event) \  argument
34 	__pubsub_start_sym(event) = .; \
35 	KEEP(*(__pubsub_section(event))); \
36 	__pubsub_end_sym(event) = .
50 #define __pubsub_start_sym(event)	Load$$__pubsub_##event##_start$$Base  argument
51 #define __pubsub_end_sym(event)		Load$$__pubsub_##event##_end$$Base  argument
53 #define __pubsub_start_sym(event)	__pubsub_##event##_start  argument
54 #define __pubsub_end_sym(event)		__pubsub_##event##_end  argument
57 #define __pubsub_section(event)		__section("__pubsub_" #event)  argument
60  * In compiler context, REGISTER_PUBSUB_EVENT declares the per-event symbols
63 #define REGISTER_PUBSUB_EVENT(event) \  argument
64 	extern pubsub_cb_t __pubsub_start_sym(event)[]; \
65 	extern pubsub_cb_t __pubsub_end_sym(event)[]
68  * Have the function func called back when the specified event happens. This
74 #define SUBSCRIBE_TO_EVENT(event, func) \  argument
75 	extern pubsub_cb_t __cb_func_##func##event __pubsub_section(event); \
76 	pubsub_cb_t __cb_func_##func##event __pubsub_section(event) = (func)
79  * Iterate over subscribed handlers for a defined event. 'event' is the name of
80  * the event, and 'subscriber' a local variable of type 'pubsub_cb_t *'.
82 #define for_each_subscriber(event, subscriber) \  argument
83 	for (subscriber = __pubsub_start_sym(event); \
84 			subscriber < __pubsub_end_sym(event); \
88  * Publish a defined event supplying an argument. All subscribed handlers are
91 #define PUBLISH_EVENT_ARG(event, arg) \  argument
94 		for_each_subscriber(event, subscriber) { \
99 /* Publish a defined event with NULL argument */
100 #define PUBLISH_EVENT(event)	PUBLISH_EVENT_ARG(event, NULL)  argument