mirror of
https://github.com/matrix-construct/construct
synced 2024-11-25 16:22:35 +01:00
212380e3f4
+ branches/release-2.1 -> 2.2 base + 3.0 -> branches/cxxconversion + backport some immediate 3.0 functionality for 2.2 + other stuff
352 lines
7.9 KiB
C
352 lines
7.9 KiB
C
/*
|
|
* ircd-ratbox: A slightly useful ircd.
|
|
* event.c: Event functions.
|
|
*
|
|
* Copyright (C) 1998-2000 Regents of the University of California
|
|
* Copyright (C) 2001-2002 Hybrid Development Team
|
|
* Copyright (C) 2002-2005 ircd-ratbox development team
|
|
*
|
|
* Code borrowed from the squid web cache by Adrian Chadd.
|
|
* Original header:
|
|
*
|
|
* DEBUG: section 41 Event Processing
|
|
* AUTHOR: Henrik Nordstrom
|
|
*
|
|
* SQUID Internet Object Cache http://squid.nlanr.net/Squid/
|
|
* ----------------------------------------------------------
|
|
*
|
|
* Squid is the result of efforts by numerous individuals from the
|
|
* Internet community. Development is led by Duane Wessels of the
|
|
* National Laboratory for Applied Network Research and funded by the
|
|
* National Science Foundation. Squid is Copyrighted (C) 1998 by
|
|
* the Regents of the University of California. Please see the
|
|
* COPYRIGHT file for full details. Squid incorporates software
|
|
* developed and/or copyrighted by other sources. Please see the
|
|
* CREDITS file for full details.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
|
|
* USA
|
|
*
|
|
* $Id: event.c 498 2006-01-15 16:40:33Z jilles $
|
|
*/
|
|
|
|
/*
|
|
* How its used:
|
|
*
|
|
* Should be pretty self-explanatory. Events are added to the static
|
|
* array event_table with a frequency time telling eventRun how often
|
|
* to execute it.
|
|
*/
|
|
|
|
#include "stdinc.h"
|
|
#include "config.h"
|
|
|
|
#include "ircd.h"
|
|
#include "event.h"
|
|
#include "client.h"
|
|
#include "send.h"
|
|
#include "memory.h"
|
|
#include "s_log.h"
|
|
#include "numeric.h"
|
|
|
|
static const char *last_event_ran = NULL;
|
|
struct ev_entry event_table[MAX_EVENTS];
|
|
static time_t event_time_min = -1;
|
|
|
|
/*
|
|
* void eventAdd(const char *name, EVH *func, void *arg, time_t when)
|
|
*
|
|
* Input: Name of event, function to call, arguments to pass, and frequency
|
|
* of the event.
|
|
* Output: None
|
|
* Side Effects: Adds the event to the event list.
|
|
*/
|
|
void
|
|
eventAdd(const char *name, EVH * func, void *arg, time_t when)
|
|
{
|
|
int i;
|
|
|
|
/* find first inactive index */
|
|
for (i = 0; i < MAX_EVENTS; i++)
|
|
{
|
|
if(event_table[i].active == 0)
|
|
{
|
|
event_table[i].func = func;
|
|
event_table[i].name = name;
|
|
event_table[i].arg = arg;
|
|
event_table[i].when = CurrentTime + when;
|
|
event_table[i].frequency = when;
|
|
event_table[i].active = 1;
|
|
|
|
if((event_table[i].when < event_time_min) || (event_time_min == -1))
|
|
event_time_min = event_table[i].when;
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* erk! couldnt add to event table */
|
|
sendto_realops_snomask(SNO_DEBUG, L_ALL, "Unable to add event [%s] to event table", name);
|
|
|
|
}
|
|
|
|
void
|
|
eventAddOnce(const char *name, EVH *func, void *arg, time_t when)
|
|
{
|
|
int i;
|
|
|
|
/* find first inactive index */
|
|
for (i = 0; i < MAX_EVENTS; i++)
|
|
{
|
|
if(event_table[i].active == 0)
|
|
{
|
|
event_table[i].func = func;
|
|
event_table[i].name = name;
|
|
event_table[i].arg = arg;
|
|
event_table[i].when = CurrentTime + when;
|
|
event_table[i].frequency = 0;
|
|
event_table[i].active = 1;
|
|
|
|
if ((event_table[i].when < event_time_min) || (event_time_min == -1))
|
|
event_time_min = event_table[i].when;
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* erk! couldnt add to event table */
|
|
sendto_realops_snomask(SNO_DEBUG, L_ALL,
|
|
"Unable to add event [%s] to event table", name);
|
|
}
|
|
|
|
/*
|
|
* void eventDelete(EVH *func, void *arg)
|
|
*
|
|
* Input: Function handler, argument that was passed.
|
|
* Output: None
|
|
* Side Effects: Removes the event from the event list
|
|
*/
|
|
void
|
|
eventDelete(EVH * func, void *arg)
|
|
{
|
|
int i;
|
|
|
|
i = eventFind(func, arg);
|
|
|
|
if(i == -1)
|
|
return;
|
|
|
|
event_table[i].name = NULL;
|
|
event_table[i].func = NULL;
|
|
event_table[i].arg = NULL;
|
|
event_table[i].active = 0;
|
|
}
|
|
|
|
/*
|
|
* void eventAddIsh(const char *name, EVH *func, void *arg, time_t delta_isa)
|
|
*
|
|
* Input: Name of event, function to call, arguments to pass, and frequency
|
|
* of the event.
|
|
* Output: None
|
|
* Side Effects: Adds the event to the event list within +- 1/3 of the
|
|
* specified frequency.
|
|
*/
|
|
void
|
|
eventAddIsh(const char *name, EVH * func, void *arg, time_t delta_ish)
|
|
{
|
|
if(delta_ish >= 3.0)
|
|
{
|
|
const time_t two_third = (2 * delta_ish) / 3;
|
|
delta_ish = two_third + ((rand() % 1000) * two_third) / 1000;
|
|
/*
|
|
* XXX I hate the above magic, I don't even know if its right.
|
|
* Grr. -- adrian
|
|
*/
|
|
}
|
|
eventAdd(name, func, arg, delta_ish);
|
|
}
|
|
|
|
/*
|
|
* void eventRun(void)
|
|
*
|
|
* Input: None
|
|
* Output: None
|
|
* Side Effects: Runs pending events in the event list
|
|
*/
|
|
void
|
|
eventRun(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_EVENTS; i++)
|
|
{
|
|
if(event_table[i].active && (event_table[i].when <= CurrentTime))
|
|
{
|
|
last_event_ran = event_table[i].name;
|
|
event_table[i].func(event_table[i].arg);
|
|
event_time_min = -1;
|
|
|
|
/* event is scheduled more than once */
|
|
if(event_table[i].frequency)
|
|
event_table[i].when = CurrentTime + event_table[i].frequency;
|
|
else
|
|
{
|
|
event_table[i].name = NULL;
|
|
event_table[i].func = NULL;
|
|
event_table[i].arg = NULL;
|
|
event_table[i].active = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* time_t eventNextTime(void)
|
|
*
|
|
* Input: None
|
|
* Output: Specifies the next time eventRun() should be run
|
|
* Side Effects: None
|
|
*/
|
|
time_t
|
|
eventNextTime(void)
|
|
{
|
|
int i;
|
|
|
|
if(event_time_min == -1)
|
|
{
|
|
for (i = 0; i < MAX_EVENTS; i++)
|
|
{
|
|
if(event_table[i].active &&
|
|
((event_table[i].when < event_time_min) || (event_time_min == -1)))
|
|
event_time_min = event_table[i].when;
|
|
}
|
|
}
|
|
|
|
return event_time_min;
|
|
}
|
|
|
|
/*
|
|
* void eventInit(void)
|
|
*
|
|
* Input: None
|
|
* Output: None
|
|
* Side Effects: Initializes the event system.
|
|
*/
|
|
void
|
|
eventInit(void)
|
|
{
|
|
last_event_ran = NULL;
|
|
memset((void *) event_table, 0, sizeof(event_table));
|
|
}
|
|
|
|
/*
|
|
* int eventFind(EVH *func, void *arg)
|
|
*
|
|
* Input: Event function and the argument passed to it
|
|
* Output: Index to the slow in the event_table
|
|
* Side Effects: None
|
|
*/
|
|
int
|
|
eventFind(EVH * func, void *arg)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_EVENTS; i++)
|
|
{
|
|
if((event_table[i].func == func) &&
|
|
(event_table[i].arg == arg) && event_table[i].active)
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
int i;
|
|
|
|
if(last_event_ran)
|
|
sendto_one_numeric(source_p, RPL_STATSDEBUG,
|
|
"E :Last event to run: %s",
|
|
last_event_ran);
|
|
|
|
sendto_one_numeric(source_p, RPL_STATSDEBUG,
|
|
"E :Operation Next Execution");
|
|
|
|
for (i = 0; i < MAX_EVENTS; i++)
|
|
{
|
|
if(event_table[i].active)
|
|
{
|
|
sendto_one_numeric(source_p, RPL_STATSDEBUG,
|
|
"E :%-28s %-4d seconds",
|
|
event_table[i].name,
|
|
(int)(event_table[i].when - CurrentTime));
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_EVENTS; i++)
|
|
{
|
|
if(event_table[i].when > by)
|
|
event_table[i].when -= by;
|
|
else
|
|
event_table[i].when = 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
eventUpdate(const char *name, time_t freq)
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < MAX_EVENTS; i++)
|
|
{
|
|
if(event_table[i].active &&
|
|
!irccmp(event_table[i].name, name))
|
|
{
|
|
event_table[i].frequency = freq;
|
|
|
|
/* update when its scheduled to run if its higher
|
|
* than the new frequency
|
|
*/
|
|
if((CurrentTime + freq) < event_table[i].when)
|
|
event_table[i].when = CurrentTime + freq;
|
|
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
|