mirror of
https://github.com/matrix-construct/construct
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157 lines
5 KiB
C++
157 lines
5 KiB
C++
/*
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* ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
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* hook.c - code for dealing with the hook system
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*
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* ~~~~~~~~
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* This code is basically a slow leaking array. Events are simply just a
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* position in this array. When hooks are added, events will be created if
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* they dont exist - this means modules with hooks can be loaded in any
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* order, and events are preserved through module reloads.
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* ~~~~~~~~~ left the comment but the code is gone. --jzk
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*
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* Copyright (C) 2004-2005 Lee Hardy <lee -at- leeh.co.uk>
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* Copyright (C) 2004-2005 ircd-ratbox development team
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 Jason Volk <jason@zemos.net>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1.Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2.Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3.The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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namespace ircd {
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namespace hook {
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} // namespace hook
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} // namespace ircd
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using namespace ircd;
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bool
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hook::happens_before(const std::string &a_name,
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const relationship &a_happens,
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const std::string &b_name,
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const relationship &b_happens)
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{
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// Explicit request by b that a happens before
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if(b_happens.first == a_name)
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return true;
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// Explicit request by a that b happens before
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if(a_happens.first == b_name)
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return false;
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// Explicit request by b that a happens after
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if(b_happens.second == a_name)
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return false;
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// Explicit request by a that b happens after
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if(a_happens.second == b_name)
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return true;
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// a happens before everything and b has at least something before it
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if(a_happens.first.empty() && !b_happens.first.empty())
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return true;
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// b happens before everything and a has at least something before it
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if(b_happens.first.empty() && !a_happens.first.empty())
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return false;
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// a happens after everything and b has at least something after it
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if(a_happens.second.empty() && !b_happens.second.empty())
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return false;
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// b happens after everything and a has at least something after it
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if(b_happens.second.empty() && !a_happens.second.empty())
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return true;
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//TODO: ???
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// both have the same before requirement
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if(a_happens.first == b_happens.first)
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return a_happens.second < b_happens.second;
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//TODO: ???
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// both have the same after requirement
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if(a_happens.second == b_happens.second)
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return a_happens.first < b_happens.first;
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//TODO: ???
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return false;
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}
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/*
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hook *hooks;
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#define HOOK_INCREMENT 1000
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int num_hooks = 0;
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int last_hook = 0;
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int max_hooks = HOOK_INCREMENT;
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int h_burst_client;
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int h_burst_channel;
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int h_burst_finished;
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int h_server_introduced;
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int h_server_eob;
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int h_client_exit;
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int h_umode_changed;
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int h_new_local_user;
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int h_new_remote_user;
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int h_introduce_client;
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int h_can_kick;
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int h_privmsg_user;
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int h_privmsg_channel;
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int h_conf_read_start;
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int h_conf_read_end;
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int h_outbound_msgbuf;
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int h_rehash;
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void
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init_hook(void)
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{
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hooks = (hook *)rb_malloc(sizeof(hook) * HOOK_INCREMENT);
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h_burst_client = register_hook("burst_client");
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h_burst_channel = register_hook("burst_channel");
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h_burst_finished = register_hook("burst_finished");
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h_server_introduced = register_hook("server_introduced");
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h_server_eob = register_hook("server_eob");
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h_client_exit = register_hook("client_exit");
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h_umode_changed = register_hook("umode_changed");
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h_new_local_user = register_hook("new_local_user");
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h_new_remote_user = register_hook("new_remote_user");
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h_introduce_client = register_hook("introduce_client");
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h_can_kick = register_hook("can_kick");
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h_privmsg_user = register_hook("privmsg_user");
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h_privmsg_channel = register_hook("privmsg_channel");
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h_conf_read_start = register_hook("conf_read_start");
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h_conf_read_end = register_hook("conf_read_end");
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h_outbound_msgbuf = register_hook("outbound_msgbuf");
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h_rehash = register_hook("rehash");
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}
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*/
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