trunk/src/event.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  event.c: Event functions.
 *
 *  Copyright (c) 1998-2000 Regents of the University of California
 *  Copyright (c) 2000-2014 ircd-hybrid development team
 *
 *  $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "ircd.h"
#include "event.h"
#include "client.h"
#include "send.h"
#include "numeric.h"
#include "rng_mt.h"

static dlink_list events;

void
event_add(struct event *ev, void *data)
{
  dlink_node *node;

  event_delete(ev);

  ev->data = data;
  ev->next = CurrentTime + ev->when;
  ev->enabled = 1;

  DLINK_FOREACH(node, events.head)
  {
    struct event *e = node->data;

    if (e->next > ev->next)
    {
      dlinkAddBefore(node, ev, &ev->node, &events);
      return;
    }
  }

  dlinkAddTail(ev, &ev->node, &events);
}

void
event_addish(struct event *ev, void *data)
{
  if (ev->when >= 3)
  {
    const time_t two_third = (2 * ev->when) / 3;

    ev->when = two_third + ((genrand_int32() % 1000) * two_third) / 1000;
  }

  event_add(ev, data);
}

void
event_delete(struct event *ev)
{
  if (!ev->enabled)
    return;

  dlinkDelete(&ev->node, &events);
  ev->enabled = 0;
}

void
event_run(void)
{
  static time_t last = 0;
  unsigned int len = 0;

  if (last == CurrentTime)
    return;
  last = CurrentTime;

  len = dlink_list_length(&events);
  while (len-- && dlink_list_length(&events))
  {
    struct event *e = events.head->data;

    if (e->next > CurrentTime)
      break;

    event_delete(e);

    e->handler(e->data);

    if (!e->oneshot)
      event_add(e, e->data);
  }
}

/*
 * void set_back_events(time_t by)
 * Input: Time to set back events by.
 * Output: None.
 * Side-effects: Sets back all events by "by" seconds.
 */
void
set_back_events(time_t by)
{
  dlink_node *node;

  DLINK_FOREACH(node, events.head)
  {
    struct event *ev = node->data;
    ev->next -= by;
  }
}

/*
 * void show_events(struct Client *source_p)
 *
 * Input: Client requesting the event
 * Output: List of events
 * Side Effects: None
 */
void
show_events(struct Client *source_p)
{
  const dlink_node *node;

  sendto_one_numeric(source_p, &me, RPL_STATSDEBUG|SND_EXPLICIT,
                     "E :Operation                    Next Execution");
  sendto_one_numeric(source_p, &me, RPL_STATSDEBUG|SND_EXPLICIT,
                     "E :-------------------------------------------");

  DLINK_FOREACH(node, events.head)
  {
    const struct event *ev = node->data;

    sendto_one_numeric(source_p, &me, RPL_STATSDEBUG|SND_EXPLICIT,
                       "E :%-28s %-4d seconds",
                       ev->name,
                       (int)(ev->next - CurrentTime));
  }
}

Revision:	4126
Committed:	Tue Jul 1 19:24:16 2014 UTC (11 years, 1 month ago) by michael
Content type:	text/x-csrc
File size:	2674 byte(s)
Log Message:	- event.c:event_addish(): removed XXX
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* event.c: Event functions.
4			*
5	michael	2916	* Copyright (c) 1998-2000 Regents of the University of California
6			* Copyright (c) 2000-2014 ircd-hybrid development team
7	adx	30	*
8	knight	31	* $Id$
9	adx	30	*/
10
11			#include "stdinc.h"
12	michael	1011	#include "list.h"
13	adx	30	#include "ircd.h"
14			#include "event.h"
15			#include "client.h"
16			#include "send.h"
17			#include "numeric.h"
18	michael	2680	#include "rng_mt.h"
19	adx	30
20	michael	4094	static dlink_list events;
21	michael	2680
22	michael	4094	void
23			event_add(struct event ev, void data)
24			{
25			dlink_node *node;
26	adx	30
27	michael	4094	event_delete(ev);
28	michael	3599
29	michael	4094	ev->data = data;
30			ev->next = CurrentTime + ev->when;
31			ev->enabled = 1;
32	michael	3599
33	michael	4094	DLINK_FOREACH(node, events.head)
34			{
35			struct event *e = node->data;
36	michael	3599
37	michael	4094	if (e->next > ev->next)
38	adx	30	{
39	michael	4094	dlinkAddBefore(node, ev, &ev->node, &events);
40	adx	30	return;
41			}
42			}
43
44	michael	4094	dlinkAddTail(ev, &ev->node, &events);
45	adx	30	}
46
47			void
48	michael	4094	event_addish(struct event ev, void data)
49	adx	30	{
50	michael	4094	if (ev->when >= 3)
51	adx	30	{
52	michael	4094	const time_t two_third = (2 * ev->when) / 3;
53	michael	4126
54	michael	4094	ev->when = two_third + ((genrand_int32() % 1000) * two_third) / 1000;
55	adx	30	}
56
57	michael	4094	event_add(ev, data);
58	adx	30	}
59
60			void
61	michael	4094	event_delete(struct event *ev)
62	adx	30	{
63	michael	4094	if (!ev->enabled)
64			return;
65
66			dlinkDelete(&ev->node, &events);
67			ev->enabled = 0;
68	adx	30	}
69
70	michael	4094	void
71			event_run(void)
72	adx	30	{
73	michael	4094	static time_t last = 0;
74	michael	4118	unsigned int len = 0;
75	adx	30
76	michael	4094	if (last == CurrentTime)
77			return;
78			last = CurrentTime;
79
80			len = dlink_list_length(&events);
81			while (len-- && dlink_list_length(&events))
82			{
83			struct event *e = events.head->data;
84
85	michael	4099	if (e->next > CurrentTime)
86	michael	4094	break;
87
88			event_delete(e);
89
90			e->handler(e->data);
91
92			if (!e->oneshot)
93			event_add(e, e->data);
94			}
95	adx	30	}
96
97			/*
98	michael	4094	* void set_back_events(time_t by)
99			* Input: Time to set back events by.
100			* Output: None.
101			* Side-effects: Sets back all events by "by" seconds.
102	adx	30	*/
103			void
104	michael	4094	set_back_events(time_t by)
105	adx	30	{
106	michael	4094	dlink_node *node;
107
108			DLINK_FOREACH(node, events.head)
109			{
110			struct event *ev = node->data;
111			ev->next -= by;
112			}
113	adx	30	}
114
115			/*
116			* void show_events(struct Client *source_p)
117			*
118			* Input: Client requesting the event
119			* Output: List of events
120			* Side Effects: None
121			*/
122			void
123			show_events(struct Client *source_p)
124			{
125	michael	4094	const dlink_node *node;
126	adx	30
127	michael	3589	sendto_one_numeric(source_p, &me, RPL_STATSDEBUG\|SND_EXPLICIT,
128			"E :Operation Next Execution");
129			sendto_one_numeric(source_p, &me, RPL_STATSDEBUG\|SND_EXPLICIT,
130			"E :-------------------------------------------");
131	adx	30
132	michael	4094	DLINK_FOREACH(node, events.head)
133			{
134			const struct event *ev = node->data;
135	adx	30
136	michael	4094	sendto_one_numeric(source_p, &me, RPL_STATSDEBUG\|SND_EXPLICIT,
137			"E :%-28s %-4d seconds",
138			ev->name,
139			(int)(ev->next - CurrentTime));
140	adx	30	}
141			}
142	michael	4094