gnunet-service-messenger_subscription.c File Reference

#include "platform.h"
#include "gnunet-service-messenger_subscription.h"
#include "gnunet-service-messenger_member.h"
#include "gnunet-service-messenger_room.h"

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Functions
struct GNUNET_MESSENGER_Subscription *	create_subscription (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_Member *member, const struct GNUNET_ShortHashCode *discourse, struct GNUNET_TIME_Absolute timestamp, struct GNUNET_TIME_Relative duration)
void	destroy_subscription (struct GNUNET_MESSENGER_Subscription *subscribtion)
const struct GNUNET_ShortHashCode *	get_subscription_discourse (const struct GNUNET_MESSENGER_Subscription *subscribtion)
enum GNUNET_GenericReturnValue	has_subscription_of_timestamp (const struct GNUNET_MESSENGER_Subscription *subscribtion, struct GNUNET_TIME_Absolute timestamp)
void	update_subscription (struct GNUNET_MESSENGER_Subscription *subscribtion, struct GNUNET_TIME_Absolute timestamp, struct GNUNET_TIME_Relative duration)
static void	task_subscription_exit (void *cls)
void	update_subscription_timing (struct GNUNET_MESSENGER_Subscription *subscribtion)

Function Documentation

create_subscription()

struct GNUNET_MESSENGER_Subscription * create_subscription	(	struct GNUNET_MESSENGER_SrvRoom *	room,
		struct GNUNET_MESSENGER_Member *	member,
		const struct GNUNET_ShortHashCode *	discourse,
		struct GNUNET_TIME_Absolute	timestamp,
		struct GNUNET_TIME_Relative	duration
	)

Definition at line 33 of file gnunet-service-messenger_subscription.c.

{
  struct GNUNET_MESSENGER_Subscription *subscribtion;
 
  GNUNET_assert ((room) && (member) && (discourse));
 
  subscribtion = GNUNET_new (struct GNUNET_MESSENGER_Subscription);
 
  if (! subscribtion)
    return NULL;
 
  subscribtion->room = room;
  subscribtion->member = member;
  subscribtion->task = NULL;
 
  memcpy (&(subscribtion->discourse), discourse, sizeof (struct GNUNET_ShortHashCode));
 
  subscribtion->start = timestamp;
  subscribtion->end = GNUNET_TIME_absolute_add (timestamp, duration);
 
  return subscribtion;
}

References GNUNET_MESSENGER_Subscription::discourse, duration, GNUNET_MESSENGER_Subscription::end, GNUNET_assert, GNUNET_new, GNUNET_TIME_absolute_add(), GNUNET_MESSENGER_Subscription::member, GNUNET_MESSENGER_Subscription::room, GNUNET_MESSENGER_Subscription::start, GNUNET_MESSENGER_Subscription::task, and timestamp().

Referenced by handle_message_subscribe().

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destroy_subscription()

void destroy_subscription

(

struct GNUNET_MESSENGER_Subscription *

subscribtion

)

Definition at line 61 of file gnunet-service-messenger_subscription.c.

{
  GNUNET_assert (subscribtion);
 
  if (subscribtion->task)
    GNUNET_SCHEDULER_cancel (subscribtion->task);
 
  GNUNET_free (subscribtion);
}

References GNUNET_assert, GNUNET_free, GNUNET_SCHEDULER_cancel(), and GNUNET_MESSENGER_Subscription::task.

Referenced by iterate_destroy_subscription(), and task_subscription_exit().

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get_subscription_discourse()

const struct GNUNET_ShortHashCode * get_subscription_discourse

(

const struct GNUNET_MESSENGER_Subscription *

subscribtion

)

Definition at line 72 of file gnunet-service-messenger_subscription.c.

{
  GNUNET_assert (subscribtion);
 
  return &(subscribtion->discourse);
}

References GNUNET_MESSENGER_Subscription::discourse, and GNUNET_assert.

Referenced by add_member_subscription(), and remove_member_subscription().

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has_subscription_of_timestamp()

enum GNUNET_GenericReturnValue has_subscription_of_timestamp	(	const struct GNUNET_MESSENGER_Subscription *	subscribtion,
		struct GNUNET_TIME_Absolute	timestamp
	)

Definition at line 80 of file gnunet-service-messenger_subscription.c.

{
  GNUNET_assert (subscribtion);
 
  if ((GNUNET_TIME_absolute_cmp (timestamp, <, subscribtion->start)) ||
      (GNUNET_TIME_absolute_cmp (timestamp, >, subscribtion->end)))
    return GNUNET_NO;
  else
    return GNUNET_YES;
}

References GNUNET_MESSENGER_Subscription::end, GNUNET_assert, GNUNET_NO, GNUNET_TIME_absolute_cmp, GNUNET_YES, GNUNET_MESSENGER_Subscription::start, and timestamp().

Referenced by notify_srv_handle_message().

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update_subscription()

void update_subscription	(	struct GNUNET_MESSENGER_Subscription *	subscribtion,
		struct GNUNET_TIME_Absolute	timestamp,
		struct GNUNET_TIME_Relative	duration
	)

Definition at line 93 of file gnunet-service-messenger_subscription.c.

{
  struct GNUNET_TIME_Absolute end;
 
  GNUNET_assert (subscribtion);
 
  end = GNUNET_TIME_absolute_add (timestamp, duration);
 
  if (GNUNET_TIME_absolute_cmp (end, <, subscribtion->start))
    return;
 
  if (GNUNET_TIME_absolute_cmp (timestamp, <, subscribtion->start))
    subscribtion->start = timestamp;
 
  subscribtion->end = end;
}

References duration, end, GNUNET_MESSENGER_Subscription::end, GNUNET_assert, GNUNET_TIME_absolute_add(), GNUNET_TIME_absolute_cmp, GNUNET_MESSENGER_Subscription::start, and timestamp().

Referenced by handle_message_subscribe().

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task_subscription_exit()

static void task_subscription_exit ( void *  cls )

static

Definition at line 113 of file gnunet-service-messenger_subscription.c.

{
  struct GNUNET_MESSENGER_Subscription *subscribtion;
  struct GNUNET_MESSENGER_Member *member;
  struct GNUNET_MESSENGER_SrvRoom *room;
  struct GNUNET_ShortHashCode discourse;
 
  GNUNET_assert (cls);
 
  subscribtion = cls;
  member = subscribtion->member;
 
  subscribtion->task = NULL;
 
  if (! member)
    return;
 
  room = subscribtion->room;
 
  memcpy (&discourse, &(subscribtion->discourse), 
          sizeof (struct GNUNET_ShortHashCode));
  
  remove_member_subscription (member, subscribtion);
  destroy_subscription (subscribtion);
 
  cleanup_srv_room_discourse_messages (room, &discourse);
}

References cleanup_srv_room_discourse_messages(), destroy_subscription(), GNUNET_MESSENGER_Subscription::discourse, GNUNET_assert, GNUNET_MESSENGER_Subscription::member, remove_member_subscription(), GNUNET_MESSENGER_Subscription::room, and GNUNET_MESSENGER_Subscription::task.

Referenced by update_subscription_timing().

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update_subscription_timing()

void update_subscription_timing

(

struct GNUNET_MESSENGER_Subscription *

subscribtion

)

Definition at line 142 of file gnunet-service-messenger_subscription.c.

{
  struct GNUNET_TIME_Absolute current;
  struct GNUNET_TIME_Relative time;
 
  GNUNET_assert (subscribtion);
 
  current = GNUNET_TIME_absolute_get ();
  time = GNUNET_TIME_absolute_get_difference (current, subscribtion->end);
  
  if (subscribtion->task)
    GNUNET_SCHEDULER_cancel (subscribtion->task);
  
  subscribtion->task = 
    GNUNET_SCHEDULER_add_delayed (time, task_subscription_exit, subscribtion);
}

References GNUNET_MESSENGER_Subscription::end, GNUNET_assert, GNUNET_SCHEDULER_add_delayed(), GNUNET_SCHEDULER_cancel(), GNUNET_TIME_absolute_get(), GNUNET_TIME_absolute_get_difference(), GNUNET_MESSENGER_Subscription::task, and task_subscription_exit().

Referenced by handle_message_subscribe().

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