1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/core/systems/ShareSys.cpp Sun Mar 30 07:00:22 2008 +0000
1.3 @@ -0,0 +1,250 @@
1.4 +/**
1.5 + * vim: set ts=4 :
1.6 + * =============================================================================
1.7 + * SourceMod
1.8 + * Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
1.9 + * =============================================================================
1.10 + *
1.11 + * This program is free software; you can redistribute it and/or modify it under
1.12 + * the terms of the GNU General Public License, version 3.0, as published by the
1.13 + * Free Software Foundation.
1.14 + *
1.15 + * This program is distributed in the hope that it will be useful, but WITHOUT
1.16 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
1.17 + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
1.18 + * details.
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License along with
1.21 + * this program. If not, see <http://www.gnu.org/licenses/>.
1.22 + *
1.23 + * As a special exception, AlliedModders LLC gives you permission to link the
1.24 + * code of this program (as well as its derivative works) to "Half-Life 2," the
1.25 + * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
1.26 + * by the Valve Corporation. You must obey the GNU General Public License in
1.27 + * all respects for all other code used. Additionally, AlliedModders LLC grants
1.28 + * this exception to all derivative works. AlliedModders LLC defines further
1.29 + * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
1.30 + * or <http://www.sourcemod.net/license.php>.
1.31 + *
1.32 + * Version: $Id$
1.33 + */
1.34 +
1.35 +#include "ShareSys.h"
1.36 +#include "HandleSys.h"
1.37 +#include "ExtensionSys.h"
1.38 +#include "LibrarySys.h"
1.39 +
1.40 +ShareSystem g_ShareSys;
1.41 +
1.42 +ShareSystem::ShareSystem()
1.43 +{
1.44 + m_IdentRoot.ident = 0;
1.45 + m_TypeRoot = 0;
1.46 + m_IfaceType = 0;
1.47 + m_CoreType = 0;
1.48 +}
1.49 +
1.50 +IdentityToken_t *ShareSystem::CreateCoreIdentity()
1.51 +{
1.52 + if (!m_CoreType)
1.53 + {
1.54 + m_CoreType = CreateIdentType("CORE");
1.55 + }
1.56 +
1.57 + return CreateIdentity(m_CoreType, this);
1.58 +}
1.59 +
1.60 +void ShareSystem::Initialize()
1.61 +{
1.62 + TypeAccess sec;
1.63 +
1.64 + g_HandleSys.InitAccessDefaults(&sec, NULL);
1.65 + sec.ident = GetIdentRoot();
1.66 +
1.67 + m_TypeRoot = g_HandleSys.CreateType("Identity", this, 0, &sec, NULL, NULL, NULL);
1.68 + m_IfaceType = g_HandleSys.CreateType("Interface", this, 0, NULL, NULL, GetIdentRoot(), NULL);
1.69 +
1.70 + /* Initialize our static identity handle */
1.71 + m_IdentRoot.ident = g_HandleSys.CreateHandle(m_TypeRoot, NULL, NULL, GetIdentRoot(), NULL);
1.72 +
1.73 + /* Add the Handle System and others... they are too innocent and pure to do it themselves */
1.74 + AddInterface(NULL, &g_HandleSys);
1.75 + AddInterface(NULL, &g_LibSys);
1.76 +}
1.77 +
1.78 +void ShareSystem::OnSourceModShutdown()
1.79 +{
1.80 + if (m_CoreType)
1.81 + {
1.82 + g_HandleSys.RemoveType(m_CoreType, GetIdentRoot());
1.83 + }
1.84 +
1.85 + g_HandleSys.RemoveType(m_IfaceType, GetIdentRoot());
1.86 + g_HandleSys.RemoveType(m_TypeRoot, GetIdentRoot());
1.87 +}
1.88 +
1.89 +IdentityType_t ShareSystem::FindIdentType(const char *name)
1.90 +{
1.91 + HandleType_t type;
1.92 +
1.93 + if (g_HandleSys.FindHandleType(name, &type))
1.94 + {
1.95 + if (g_HandleSys.TypeCheck(type, m_TypeRoot))
1.96 + {
1.97 + return type;
1.98 + }
1.99 + }
1.100 +
1.101 + return 0;
1.102 +}
1.103 +
1.104 +IdentityType_t ShareSystem::CreateIdentType(const char *name)
1.105 +{
1.106 + if (!m_TypeRoot)
1.107 + {
1.108 + return 0;
1.109 + }
1.110 +
1.111 + return g_HandleSys.CreateType(name, this, m_TypeRoot, NULL, NULL, GetIdentRoot(), NULL);
1.112 +}
1.113 +
1.114 +void ShareSystem::OnHandleDestroy(HandleType_t type, void *object)
1.115 +{
1.116 + /* THIS WILL NEVER BE CALLED FOR ANYTHING WITH THE IDENTITY TYPE */
1.117 +}
1.118 +
1.119 +IdentityToken_t *ShareSystem::CreateIdentity(IdentityType_t type, void *ptr)
1.120 +{
1.121 + if (!m_TypeRoot)
1.122 + {
1.123 + return 0;
1.124 + }
1.125 +
1.126 + /* :TODO: Cache? */
1.127 + IdentityToken_t *pToken = new IdentityToken_t;
1.128 +
1.129 + HandleSecurity sec;
1.130 + sec.pOwner = sec.pIdentity = GetIdentRoot();
1.131 +
1.132 + pToken->ident = g_HandleSys.CreateHandleInt(type, NULL, &sec, NULL, NULL, true);
1.133 + pToken->ptr = ptr;
1.134 + pToken->type = type;
1.135 +
1.136 + return pToken;
1.137 +}
1.138 +
1.139 +bool ShareSystem::AddInterface(IExtension *myself, SMInterface *iface)
1.140 +{
1.141 + if (!iface)
1.142 + {
1.143 + return false;
1.144 + }
1.145 +
1.146 + IfaceInfo info;
1.147 +
1.148 + info.owner = myself;
1.149 + info.iface = iface;
1.150 +
1.151 + m_Interfaces.push_back(info);
1.152 +
1.153 + return true;
1.154 +}
1.155 +
1.156 +bool ShareSystem::RequestInterface(const char *iface_name,
1.157 + unsigned int iface_vers,
1.158 + IExtension *myself,
1.159 + SMInterface **pIface)
1.160 +{
1.161 + /* See if the interface exists */
1.162 + List<IfaceInfo>::iterator iter;
1.163 + SMInterface *iface;
1.164 + IExtension *iface_owner;
1.165 + bool found = false;
1.166 + for (iter=m_Interfaces.begin(); iter!=m_Interfaces.end(); iter++)
1.167 + {
1.168 + IfaceInfo &info = (*iter);
1.169 + iface = info.iface;
1.170 + if (strcmp(iface->GetInterfaceName(), iface_name) == 0)
1.171 + {
1.172 + if (iface->GetInterfaceVersion() == iface_vers
1.173 + || iface->IsVersionCompatible(iface_vers))
1.174 + {
1.175 + iface_owner = info.owner;
1.176 + found = true;
1.177 + break;
1.178 + }
1.179 + }
1.180 + }
1.181 +
1.182 + if (!found)
1.183 + {
1.184 + return false;
1.185 + }
1.186 +
1.187 + /* Add a dependency node */
1.188 + if (iface_owner)
1.189 + {
1.190 + IfaceInfo info;
1.191 + info.iface = iface;
1.192 + info.owner = iface_owner;
1.193 + g_Extensions.BindDependency(myself, &info);
1.194 + }
1.195 +
1.196 + if (pIface)
1.197 + {
1.198 + *pIface = iface;
1.199 + }
1.200 +
1.201 + return true;
1.202 +}
1.203 +
1.204 +void ShareSystem::AddNatives(IExtension *myself, const sp_nativeinfo_t *natives)
1.205 +{
1.206 + g_Extensions.AddNatives(myself, natives);
1.207 +}
1.208 +
1.209 +void ShareSystem::DestroyIdentity(IdentityToken_t *identity)
1.210 +{
1.211 + HandleSecurity sec;
1.212 +
1.213 + sec.pOwner = GetIdentRoot();
1.214 + sec.pIdentity = GetIdentRoot();
1.215 +
1.216 + g_HandleSys.FreeHandle(identity->ident, &sec);
1.217 + delete identity;
1.218 +}
1.219 +
1.220 +void ShareSystem::DestroyIdentType(IdentityType_t type)
1.221 +{
1.222 + g_HandleSys.RemoveType(type, GetIdentRoot());
1.223 +}
1.224 +
1.225 +void ShareSystem::RemoveInterfaces(IExtension *pExtension)
1.226 +{
1.227 + List<IfaceInfo>::iterator iter = m_Interfaces.begin();
1.228 +
1.229 + while (iter != m_Interfaces.end())
1.230 + {
1.231 + if ((*iter).owner == pExtension)
1.232 + {
1.233 + iter = m_Interfaces.erase(iter);
1.234 + } else {
1.235 + iter++;
1.236 + }
1.237 + }
1.238 +}
1.239 +
1.240 +void ShareSystem::AddDependency(IExtension *myself, const char *filename, bool require, bool autoload)
1.241 +{
1.242 + g_Extensions.AddDependency(myself, filename, require, autoload);
1.243 +}
1.244 +
1.245 +void ShareSystem::RegisterLibrary(IExtension *myself, const char *name)
1.246 +{
1.247 + g_Extensions.AddLibrary(myself, name);
1.248 +}
1.249 +
1.250 +void ShareSystem::OverrideNatives(IExtension *myself, const sp_nativeinfo_t *natives)
1.251 +{
1.252 + g_Extensions.OverrideNatives(myself, natives);
1.253 +}
