mirror of
https://github.com/NishiOwO/ircservices5.git
synced 2025-04-21 00:34:38 +00:00
87 lines
2.9 KiB
C
87 lines
2.9 KiB
C
/* Ignore handling.
|
|
*
|
|
* IRC Services is copyright (c) 1996-2009 Andrew Church.
|
|
* E-mail: <achurch@achurch.org>
|
|
* Parts written by Andrew Kempe and others.
|
|
* This program is free but copyrighted software; see the file GPL.txt for
|
|
* details.
|
|
*/
|
|
|
|
#include "services.h"
|
|
|
|
/*************************************************************************/
|
|
|
|
/* ignore_init: Initialize ignore-related fields of a new User structure. */
|
|
|
|
void ignore_init(User *u)
|
|
{
|
|
u->ignore = 0;
|
|
u->lastcmd = time_msec();
|
|
u->lastcmd_s = time(NULL);
|
|
}
|
|
|
|
/*************************************************************************/
|
|
|
|
/* ignore_update: Update the user's ignore level. The "ignore level" is a
|
|
* measure of how much time Services has spent processing
|
|
* this user's commands, and is calculated as a decaying
|
|
* average of the fraction of time spent on the user's
|
|
* commands over the total time Services has been running--
|
|
* more specifically, the average over time of a function
|
|
* whose value is 1 when Services is executing a command
|
|
* from the user and 0 at all other times. The rate of
|
|
* decay of the average, and hence the rate of response to
|
|
* new commands, is dependent on the IgnoreDecay
|
|
* configuration setting: the average decays by half every
|
|
* IgnoreDecay milliseconds (note that the value is given as
|
|
* seconds in the configuration file).
|
|
* The `msec' parameter to this function is the length
|
|
* of time taken by the most recent command (which caused
|
|
* this update). `msec' may be specified as zero to update
|
|
* the user's ignore level at any time.
|
|
*/
|
|
|
|
void ignore_update(User *u, uint32 msec)
|
|
{
|
|
time_t now;
|
|
uint32 now_msec;
|
|
|
|
if (!IgnoreDecay) {
|
|
/* Ignore code disabled, just return */
|
|
return;
|
|
}
|
|
now = time(NULL);
|
|
now_msec = time_msec();
|
|
if (now - u->lastcmd_s > 1000000) {
|
|
/* Millisecond counter may have overflowed, just reset to 0 */
|
|
u->ignore = 0;
|
|
} else {
|
|
double zerolen = (now_msec - msec) - u->lastcmd;
|
|
if (zerolen > 0)
|
|
u->ignore *= pow(2, -(zerolen / IgnoreDecay));
|
|
}
|
|
if (msec) {
|
|
double factor;
|
|
while (msec > IgnoreDecay) {
|
|
u->ignore = u->ignore*0.5 + 0.5;
|
|
msec -= IgnoreDecay;
|
|
}
|
|
factor = pow(2, -((double)msec / IgnoreDecay));
|
|
u->ignore = u->ignore*factor + (1-factor);
|
|
}
|
|
u->lastcmd = now_msec;
|
|
u->lastcmd_s = now;
|
|
}
|
|
|
|
/*************************************************************************/
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-file-style: "stroustrup"
|
|
* c-file-offsets: ((case-label . *) (statement-case-intro . *))
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vim: expandtab shiftwidth=4:
|
|
*/
|