nc.c File Reference

convenience functions for transmission of messages to multiple clients More...

#include "platform.h"
#include "gnunet_util_lib.h"

Include dependency graph for nc.c:

Go to the source code of this file.

Data Structures
struct	SubscriberList
	Lists of subscribers we manage for notifications. More...
struct	GNUNET_NotificationContext
	The notification context is the key datastructure for a convenience API used for transmission of notifications to the subscriber until the subscriber disconnects (or the notification context is destroyed, in which case we disconnect these subscribers). More...

Macros
#define	LOG(kind, ...)   GNUNET_log_from (kind, "util-nc", __VA_ARGS__)

Functions
static void	handle_mq_destroy (void *cls)
	Subscriber has disconnected, clean up. More...
struct GNUNET_NotificationContext *	GNUNET_notification_context_create (unsigned int queue_length)
	Create a new notification context. More...
void	GNUNET_notification_context_destroy (struct GNUNET_NotificationContext *nc)
	Destroy the context, force disconnect for all subscribers. More...
void	GNUNET_notification_context_add (struct GNUNET_NotificationContext *nc, struct GNUNET_MQ_Handle *mq)
	Add a subscriber to the notification context. More...
void	GNUNET_notification_context_broadcast (struct GNUNET_NotificationContext *nc, const struct GNUNET_MessageHeader *msg, int can_drop)
	Send a message to all subscribers of this context. More...
unsigned int	GNUNET_notification_context_get_size (struct GNUNET_NotificationContext *nc)
	Return active number of subscribers in this context. More...

Detailed Description

convenience functions for transmission of messages to multiple clients

Author

Christian Grothoff

Definition in file nc.c.

Macro Definition Documentation

LOG

#define LOG	(		kind,
			...
	)		GNUNET_log_from (kind, "util-nc", __VA_ARGS__)

Definition at line 32 of file nc.c.

Function Documentation

handle_mq_destroy()

static void handle_mq_destroy ( void *  cls )

static

Subscriber has disconnected, clean up.

Parameters

cls	our struct SubscriberList *

Definition at line 101 of file nc.c.

{
  struct SubscriberList *pos = cls;
  struct GNUNET_NotificationContext *nc = pos->nc;
 
  GNUNET_CONTAINER_DLL_remove (nc->subscribers_head,
                               nc->subscribers_tail,
                               pos);
  GNUNET_free (pos);
}

References GNUNET_CONTAINER_DLL_remove, GNUNET_free, SubscriberList::nc, nc, GNUNET_NotificationContext::subscribers_head, and GNUNET_NotificationContext::subscribers_tail.

Referenced by GNUNET_notification_context_add().

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