src/DelayUser.cc

   1
   2 /*
   3  * $Id: DelayUser.cc,v 1.3 2003/02/08 01:45:47 robertc Exp $
   4  *
   5  * DEBUG: section 77    Delay Pools
   6  * AUTHOR: Robert Collins <robertc@squid-cache.org>
   7  *
   8  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   9  * ----------------------------------------------------------
  10  *
  11  *  Squid is the result of efforts by numerous individuals from
  12  *  the Internet community; see the CONTRIBUTORS file for full
  13  *  details.   Many organizations have provided support for Squid's
  14  *  development; see the SPONSORS file for full details.  Squid is
  15  *  Copyrighted (C) 2001 by the Regents of the University of
  16  *  California; see the COPYRIGHT file for full details.  Squid
  17  *  incorporates software developed and/or copyrighted by other
  18  *  sources; see the CREDITS file for full details.
  19  *
  20  *  This program is free software; you can redistribute it and/or modify
  21  *  it under the terms of the GNU General Public License as published by
  22  *  the Free Software Foundation; either version 2 of the License, or
  23  *  (at your option) any later version.
  24  *
  25  *  This program is distributed in the hope that it will be useful,
  26  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  27  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28  *  GNU General Public License for more details.
  29  *
  30  *  You should have received a copy of the GNU General Public License
  31  *  along with this program; if not, write to the Free Software
  32  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  33  *
  34  *
  35  * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org>
  36  */
  37
  38 #include "config.h"
  39
  40 #if DELAY_POOLS
  41 #include "squid.h"
  42 #include "DelayUser.h"
  43 #include "authenticate.h"
  44 #include "NullDelayId.h"
  45 #include "Store.h"
  46
  47 void *
  48 DelayUser::operator new(size_t size)
  49 {
  50     DelayPools::MemoryUsed += sizeof (DelayUser);
  51     return ::operator new (size);
  52 }
  53
  54 void
  55 DelayUser::operator delete (void *address)
  56 {
  57     DelayPools::MemoryUsed -= sizeof (DelayUser);
  58     ::operator delete (address);
  59 }
  60
  61 void
  62 DelayUser::deleteSelf() const
  63 {
  64     delete this;
  65 }
  66
  67 DelayUser::DelayUser()
  68 {
  69     DelayPools::registerForUpdates (this);
  70 }
  71
  72 static SplayNode<DelayUserBucket::Pointer>::SPLAYFREE DelayUserFree;
  73
  74 DelayUser::~DelayUser()
  75 {
  76     DelayPools::deregisterForUpdates (this);
  77     buckets.head->destroy (DelayUserFree);
  78 }
  79
  80 static SplayNode<DelayUserBucket::Pointer>::SPLAYCMP DelayUserCmp;
  81
  82 int
  83 DelayUserCmp(DelayUserBucket::Pointer const &left, DelayUserBucket::Pointer const &right)
  84 {
  85     /* for rate limiting, case insensitive */
  86     return strcasecmp(left->authUser->username(), right->authUser->username());
  87 }
  88
  89 void
  90 DelayUserFree(DelayUserBucket::Pointer &)
  91 {
  92 }
  93
  94 void
  95 DelayUserStatsWalkee(DelayUserBucket::Pointer const &current, void *state)
  96 {
  97     current->stats ((StoreEntry *)state);
  98 }
  99
 100 void
 101 DelayUser::stats(StoreEntry * sentry)
 102 {
 103     spec.stats (sentry, "Per User");
 104     if (spec.restore_bps == -1)
 105         return;
 106     storeAppendPrintf(sentry, "\t\tCurrent: ");
 107     if (!buckets.head) {
 108         storeAppendPrintf (sentry, "Not used yet.\n\n");
 109         return;
 110     }
 111     buckets.head->walk(DelayUserStatsWalkee, sentry);
 112     storeAppendPrintf(sentry, "\n\n");
 113 }
 114
 115 void
 116 DelayUser::dump(StoreEntry *entry) const
 117 {
 118     spec.dump(entry);
 119 }
 120
 121 struct DelayUserUpdater
 122 {
 123     DelayUserUpdater (DelaySpec &_spec, int _incr):spec(_spec),incr(_incr){};
 124     DelaySpec spec;
 125     int incr;
 126 };
 127 void
 128 DelayUserUpdateWalkee(DelayUserBucket::Pointer const &current, void *state)
 129 {
 130     DelayUserUpdater *t = (DelayUserUpdater *)state;
 131     /* This doesn't change the value of the DelayUserBucket, so is safe */
 132     const_cast<DelayUserBucket *>(current.getRaw())->theBucket.update(t->spec, t->incr);
 133 }
 134 void
 135 DelayUser::update(int incr)
 136 {
 137     DelayUserUpdater updater(spec, incr);
 138     buckets.head->walk (DelayUserUpdateWalkee, &updater);
 139 }
 140
 141 void
 142 DelayUser::parse()
 143 {
 144     spec.parse();
 145 }
 146
 147 DelayIdComposite::Pointer
 148 DelayUser::id(struct in_addr &src_addr, AuthUserRequest *authRequest)
 149 {
 150     if (!authRequest)
 151         return new NullDelayId;
 152     return new Id(this, authRequest->auth_user);
 153 }
 154
 155 void *
 156 DelayUser::Id::operator new(size_t size)
 157 {
 158     DelayPools::MemoryUsed += sizeof (Id);
 159     return ::operator new (size);
 160 }
 161
 162 void
 163 DelayUser::Id::operator delete (void *address)
 164 {
 165     DelayPools::MemoryUsed -= sizeof (Id);
 166     ::operator delete (address);
 167 }
 168
 169 void
 170 DelayUser::Id::deleteSelf() const
 171 {
 172     delete this;
 173 }
 174
 175 void *
 176 DelayUserBucket::operator new(size_t size)
 177 {
 178     DelayPools::MemoryUsed += sizeof (DelayUserBucket);
 179     return ::operator new (size);
 180 }
 181
 182 void
 183 DelayUserBucket::operator delete (void *address)
 184 {
 185     DelayPools::MemoryUsed -= sizeof (DelayUserBucket);
 186     ::operator delete (address);
 187 }
 188
 189 DelayUserBucket::DelayUserBucket(AuthUser *aUser) : authUser (aUser)
 190 {
 191     debug (77,3) ("DelayUserBucket::DelayUserBucket\n");
 192     authenticateAuthUserLock (authUser);
 193 }
 194
 195 DelayUserBucket::~DelayUserBucket()
 196 {
 197     authenticateAuthUserUnlock(authUser);
 198     debug (77,3) ("DelayUserBucket::~DelayUserBucket\n");
 199 }
 200
 201 void
 202 DelayUserBucket::stats (StoreEntry *entry) const
 203 {
 204     storeAppendPrintf(entry, " %s:", authUser->username());
 205     theBucket.stats (entry);
 206 }
 207
 208 DelayUser::Id::Id(DelayUser::Pointer aDelayUser,AuthUser *aUser) : theUser(aDelayUser)
 209 {
 210     theBucket = new DelayUserBucket(aUser);
 211     DelayUserBucket::Pointer const *existing = theUser->buckets.find(theBucket, DelayUserCmp);
 212     if (existing) {
 213         theBucket = *existing;
 214         return;
 215     }
 216     theBucket->theBucket.init(theUser->spec);
 217     theUser->buckets.head = theUser->buckets.head->insert (theBucket, DelayUserCmp);
 218 }
 219
 220 DelayUser::Id::~Id()
 221 {
 222     debug (77,3) ("DelayUser::Id::~Id\n");
 223 }
 224
 225 int
 226 DelayUser::Id::bytesWanted (int min, int max) const
 227 {
 228     return theBucket->theBucket.bytesWanted(min,max);
 229 }
 230
 231 void
 232 DelayUser::Id::bytesIn(int qty)
 233 {
 234     theBucket->theBucket.bytesIn(qty);
 235 }
 236 #endif