From b137f2564c6a9d785c468d1facd54471a51db087 Mon Sep 17 00:00:00 2001 From: brain Date: Wed, 19 Jul 2006 11:00:55 +0000 Subject: [PATCH] Speed up writecommon, writecommon_noformat, writechannel, etc (by quite a bit) - eliminate 99.99999999999% of the memsets git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@4437 e03df62e-2008-0410-955e-edbf42e46eb7 --- src/helperfuncs.cpp | 65 ++++++++++++++++++++++++++++++--------------- 1 file changed, 43 insertions(+), 22 deletions(-) diff --git a/src/helperfuncs.cpp b/src/helperfuncs.cpp index a94d5f915..ea7f558db 100644 --- a/src/helperfuncs.cpp +++ b/src/helperfuncs.cpp @@ -3,13 +3,13 @@ * +------------------------------------+ * * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev. - * E-mail: - * - * + * E-mail: + * + * * * Written by Craig Edwards, Craig McLure, and others. * This program is free but copyrighted software; see - * the file COPYING for details. + * the file COPYING for details. * * --------------------------------------------------- */ @@ -63,6 +63,9 @@ extern std::vector local_users; static char TIMESTR[26]; static time_t LAST = 0; +/* XXX: Used for speeding up WriteCommon operations */ +int uniq_id = 0; + /** log() * Write a line of text `text' to the logfile (and stdout, if in nofork) if the level `level' * is greater than the configured loglevel. @@ -706,8 +709,14 @@ void WriteCommon(userrec *u, char* text, ...) vsnprintf(textbuffer, MAXBUF, text, argsPtr); va_end(argsPtr); - // FIX: Stops a message going to the same person more than once - memset(&already_sent,0,MAX_DESCRIPTORS); + // XXX: Save on memset calls by only requiring memset every 4 billion or so + // messages. This clever trick thought of during discussion with nazzy and w00t. + uniq_id++; + if (!uniq_id) + { + memset(&already_sent,0,MAX_DESCRIPTORS); + uniq_id++; + } for (std::vector::const_iterator v = u->chans.begin(); v != u->chans.end(); v++) { @@ -717,9 +726,9 @@ void WriteCommon(userrec *u, char* text, ...) for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) { - if ((i->second->fd > -1) && (!already_sent[i->second->fd])) + if ((i->second->fd > -1) && (already_sent[i->second->fd] != uniq_id)) { - already_sent[i->second->fd] = 1; + already_sent[i->second->fd] = uniq_id; WriteFrom_NoFormat(i->second->fd,u,textbuffer); sent_to_at_least_one = true; } @@ -753,8 +762,13 @@ void WriteCommon_NoFormat(userrec *u, const char* text) return; } - // FIX: Stops a message going to the same person more than once - memset(&already_sent,0,MAX_DESCRIPTORS); + // XXX: See comment in WriteCommon + uniq_id++; + if (!uniq_id) + { + memset(&already_sent,0,MAX_DESCRIPTORS); + uniq_id++; + } for (std::vector::const_iterator v = u->chans.begin(); v != u->chans.end(); v++) { @@ -764,9 +778,9 @@ void WriteCommon_NoFormat(userrec *u, const char* text) for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++) { - if ((i->second->fd > -1) && (!already_sent[i->second->fd])) + if ((i->second->fd > -1) && (already_sent[i->second->fd] != uniq_id)) { - already_sent[i->second->fd] = 1; + already_sent[i->second->fd] = uniq_id; WriteFrom_NoFormat(i->second->fd,u,text); sent_to_at_least_one = true; } @@ -854,7 +868,12 @@ void WriteCommonExcept(userrec *u, char* text, ...) } } - memset(&already_sent,0,MAX_DESCRIPTORS); + uniq_id++; + if (!uniq_id) + { + memset(&already_sent,0,MAX_DESCRIPTORS); + uniq_id++; + } for (std::vector::const_iterator v = u->chans.begin(); v != u->chans.end(); v++) { @@ -866,9 +885,9 @@ void WriteCommonExcept(userrec *u, char* text, ...) { if (u != i->second) { - if ((i->second->fd > -1) && (!already_sent[i->second->fd])) + if ((i->second->fd > -1) && (already_sent[i->second->fd] != uniq_id)) { - already_sent[i->second->fd] = 1; + already_sent[i->second->fd] = uniq_id; if (quit_munge) { @@ -897,7 +916,12 @@ void WriteCommonExcept_NoFormat(userrec *u, const char* text) return; } - memset(&already_sent,0,MAX_DESCRIPTORS); + uniq_id++; + if (!uniq_id) + { + memset(&already_sent,0,MAX_DESCRIPTORS); + uniq_id++; + } for (std::vector::const_iterator v = u->chans.begin(); v != u->chans.end(); v++) { @@ -909,9 +933,9 @@ void WriteCommonExcept_NoFormat(userrec *u, const char* text) { if (u != i->second) { - if ((i->second->fd > -1) && (!already_sent[i->second->fd])) + if ((i->second->fd > -1) && (already_sent[i->second->fd] != uniq_id)) { - already_sent[i->second->fd] = 1; + already_sent[i->second->fd] = uniq_id; WriteFrom_NoFormat(i->second->fd,u,text); } } @@ -1547,9 +1571,6 @@ long local_count() void ShowMOTD(userrec *user) { - static char mbuf[MAXBUF]; - static char crud[MAXBUF]; - if (!Config->MOTD.size()) { WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick); @@ -1870,7 +1891,7 @@ void LoadAllModules(InspIRCd* ServerInstance) Config->ConfValue(Config->config_data, "module","name",count,configToken,MAXBUF); printf("[\033[1;32m*\033[0m] Loading module:\t\033[1;32m%s\033[0m\n",configToken); - if (!ServerInstance->LoadModule(configToken)) + if (!ServerInstance->LoadModule(configToken)) { log(DEFAULT,"Exiting due to a module loader error."); printf("\nThere was an error loading a module: %s\n\n",ServerInstance->ModuleError()); -- 2.39.5