1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/core/Database.cpp Sun Mar 30 07:00:22 2008 +0000
1.3 @@ -0,0 +1,719 @@
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 "Database.h"
1.36 +#include "HandleSys.h"
1.37 +#include "ShareSys.h"
1.38 +#include "sourcemod.h"
1.39 +#include "sm_stringutil.h"
1.40 +#include "Logger.h"
1.41 +#include "ExtensionSys.h"
1.42 +#include <stdlib.h>
1.43 +#include "ThreadSupport.h"
1.44 +
1.45 +#define DBPARSE_LEVEL_NONE 0
1.46 +#define DBPARSE_LEVEL_MAIN 1
1.47 +#define DBPARSE_LEVEL_DATABASE 2
1.48 +
1.49 +DBManager g_DBMan;
1.50 +static bool s_OneTimeThreaderErrorMsg = false;
1.51 +
1.52 +DBManager::DBManager()
1.53 +: m_StrTab(512), m_ParseLevel(0), m_ParseState(0), m_pDefault(NULL)
1.54 +{
1.55 +}
1.56 +
1.57 +void DBManager::OnSourceModAllInitialized()
1.58 +{
1.59 + HandleAccess sec;
1.60 +
1.61 + g_HandleSys.InitAccessDefaults(NULL, &sec);
1.62 + sec.access[HandleAccess_Delete] |= HANDLE_RESTRICT_IDENTITY;
1.63 + sec.access[HandleAccess_Clone] |= HANDLE_RESTRICT_IDENTITY;
1.64 +
1.65 + m_DriverType = g_HandleSys.CreateType("IDriver", this, 0, NULL, &sec, g_pCoreIdent, NULL);
1.66 + m_DatabaseType = g_HandleSys.CreateType("IDatabase", this, 0, NULL, NULL, g_pCoreIdent, NULL);
1.67 +
1.68 + g_ShareSys.AddInterface(NULL, this);
1.69 +
1.70 + g_SourceMod.BuildPath(Path_SM, m_Filename, sizeof(m_Filename), "configs/databases.cfg");
1.71 +
1.72 + m_pConfigLock = g_pThreader->MakeMutex();
1.73 + m_pThinkLock = g_pThreader->MakeMutex();
1.74 + m_pQueueLock = g_pThreader->MakeMutex();
1.75 +
1.76 + g_PluginSys.AddPluginsListener(this);
1.77 +}
1.78 +
1.79 +void DBManager::OnSourceModLevelChange(const char *mapName)
1.80 +{
1.81 + SMCError err;
1.82 + SMCStates states = {0, 0};
1.83 +
1.84 + /* We lock and don't give up the lock until we're done.
1.85 + * This way the thread's search won't be searching through a
1.86 + * potentially empty/corrupt list, which would be very bad.
1.87 + */
1.88 + m_pConfigLock->Lock();
1.89 + if ((err = textparsers->ParseFile_SMC(m_Filename, this, &states)) != SMCError_Okay)
1.90 + {
1.91 + g_Logger.LogError("[SM] Detected parse error(s) in file \"%s\"", m_Filename);
1.92 + if (err != SMCError_Custom)
1.93 + {
1.94 + const char *txt = textparsers->GetSMCErrorString(err);
1.95 + g_Logger.LogError("[SM] Line %d: %s", states.line, txt);
1.96 + }
1.97 + }
1.98 + m_pConfigLock->Unlock();
1.99 +}
1.100 +
1.101 +void DBManager::OnSourceModShutdown()
1.102 +{
1.103 + KillWorkerThread();
1.104 + g_PluginSys.RemovePluginsListener(this);
1.105 + m_pConfigLock->DestroyThis();
1.106 + m_pThinkLock->DestroyThis();
1.107 + m_pQueueLock->DestroyThis();
1.108 + g_HandleSys.RemoveType(m_DatabaseType, g_pCoreIdent);
1.109 + g_HandleSys.RemoveType(m_DriverType, g_pCoreIdent);
1.110 +}
1.111 +
1.112 +unsigned int DBManager::GetInterfaceVersion()
1.113 +{
1.114 + return SMINTERFACE_DBI_VERSION;
1.115 +}
1.116 +
1.117 +const char *DBManager::GetInterfaceName()
1.118 +{
1.119 + return SMINTERFACE_DBI_NAME;
1.120 +}
1.121 +
1.122 +void DBManager::OnHandleDestroy(HandleType_t type, void *object)
1.123 +{
1.124 + if (type == m_DriverType)
1.125 + {
1.126 + /* Ignore */
1.127 + return;
1.128 + }
1.129 +
1.130 + if (g_HandleSys.TypeCheck(type, m_DatabaseType))
1.131 + {
1.132 + IDatabase *pdb = (IDatabase *)object;
1.133 + pdb->Close();
1.134 + }
1.135 +}
1.136 +
1.137 +void DBManager::ReadSMC_ParseStart()
1.138 +{
1.139 + m_confs.clear();
1.140 + m_ParseLevel = 0;
1.141 + m_ParseState = DBPARSE_LEVEL_NONE;
1.142 + m_StrTab.Reset();
1.143 + m_DefDriver.clear();
1.144 +}
1.145 +
1.146 +ConfDbInfo s_CurInfo;
1.147 +SMCResult DBManager::ReadSMC_NewSection(const SMCStates *states, const char *name)
1.148 +{
1.149 + if (m_ParseLevel)
1.150 + {
1.151 + m_ParseLevel++;
1.152 + return SMCResult_Continue;
1.153 + }
1.154 +
1.155 + if (m_ParseState == DBPARSE_LEVEL_NONE)
1.156 + {
1.157 + if (strcmp(name, "Databases") == 0)
1.158 + {
1.159 + m_ParseState = DBPARSE_LEVEL_MAIN;
1.160 + } else {
1.161 + m_ParseLevel++;
1.162 + }
1.163 + } else if (m_ParseState == DBPARSE_LEVEL_MAIN) {
1.164 + s_CurInfo = ConfDbInfo();
1.165 + s_CurInfo.name = m_StrTab.AddString(name);
1.166 + m_ParseState = DBPARSE_LEVEL_DATABASE;
1.167 + } else if (m_ParseState == DBPARSE_LEVEL_DATABASE) {
1.168 + m_ParseLevel++;
1.169 + }
1.170 +
1.171 + return SMCResult_Continue;
1.172 +}
1.173 +
1.174 +SMCResult DBManager::ReadSMC_KeyValue(const SMCStates *states, const char *key, const char *value)
1.175 +{
1.176 + if (m_ParseLevel)
1.177 + {
1.178 + return SMCResult_Continue;
1.179 + }
1.180 +
1.181 + if (m_ParseState == DBPARSE_LEVEL_MAIN)
1.182 + {
1.183 + if (strcmp(key, "driver_default") == 0)
1.184 + {
1.185 + m_DefDriver.assign(value);
1.186 + }
1.187 + } else if (m_ParseState == DBPARSE_LEVEL_DATABASE) {
1.188 + if (strcmp(key, "driver") == 0)
1.189 + {
1.190 + if (strcmp(value, "default") != 0)
1.191 + {
1.192 + s_CurInfo.driver = m_StrTab.AddString(value);
1.193 + }
1.194 + } else if (strcmp(key, "database") == 0) {
1.195 + s_CurInfo.database = m_StrTab.AddString(value);
1.196 + } else if (strcmp(key, "host") == 0) {
1.197 + s_CurInfo.host = m_StrTab.AddString(value);
1.198 + } else if (strcmp(key, "user") == 0) {
1.199 + s_CurInfo.user = m_StrTab.AddString(value);
1.200 + } else if (strcmp(key, "pass") == 0) {
1.201 + s_CurInfo.pass = m_StrTab.AddString(value);
1.202 + } else if (strcmp(key, "timeout") == 0) {
1.203 + s_CurInfo.info.maxTimeout = atoi(value);
1.204 + } else if (strcmp(key, "port") == 0) {
1.205 + s_CurInfo.info.port = atoi(value);
1.206 + }
1.207 + }
1.208 +
1.209 + return SMCResult_Continue;
1.210 +}
1.211 +
1.212 +#define ASSIGN_VAR(var) \
1.213 + if (s_CurInfo.var == -1) { \
1.214 + s_CurInfo.info.var = ""; \
1.215 + } else { \
1.216 + s_CurInfo.info.var = m_StrTab.GetString(s_CurInfo.var); \
1.217 + }
1.218 +
1.219 +SMCResult DBManager::ReadSMC_LeavingSection(const SMCStates *states)
1.220 +{
1.221 + if (m_ParseLevel)
1.222 + {
1.223 + m_ParseLevel--;
1.224 + return SMCResult_Continue;
1.225 + }
1.226 +
1.227 + if (m_ParseState == DBPARSE_LEVEL_DATABASE)
1.228 + {
1.229 + /* Set all of the info members to either a blank string
1.230 + * or the string pointer from the string table.
1.231 + */
1.232 + ASSIGN_VAR(driver);
1.233 + ASSIGN_VAR(database);
1.234 + ASSIGN_VAR(host);
1.235 + ASSIGN_VAR(user);
1.236 + ASSIGN_VAR(pass);
1.237 +
1.238 + /* Save it.. */
1.239 + m_confs.push_back(s_CurInfo);
1.240 +
1.241 + /* Go up one level */
1.242 + m_ParseState = DBPARSE_LEVEL_MAIN;
1.243 + } else if (m_ParseState == DBPARSE_LEVEL_MAIN) {
1.244 + m_ParseState = DBPARSE_LEVEL_NONE;
1.245 + return SMCResult_Halt;
1.246 + }
1.247 +
1.248 + return SMCResult_Continue;
1.249 +}
1.250 +#undef ASSIGN_VAR
1.251 +
1.252 +void DBManager::ReadSMC_ParseEnd(bool halted, bool failed)
1.253 +{
1.254 +}
1.255 +
1.256 +bool DBManager::Connect(const char *name, IDBDriver **pdr, IDatabase **pdb, bool persistent, char *error, size_t maxlength)
1.257 +{
1.258 + ConfDbInfo *pInfo = GetDatabaseConf(name);
1.259 +
1.260 + if (!pInfo)
1.261 + {
1.262 + if (pdr)
1.263 + {
1.264 + *pdr = NULL;
1.265 + }
1.266 + *pdb = NULL;
1.267 + UTIL_Format(error, maxlength, "Configuration \"%s\" not found", name);
1.268 + return false;
1.269 + }
1.270 +
1.271 + const char *dname = pInfo->info.driver;
1.272 + if (!pInfo->realDriver)
1.273 + {
1.274 + /* Try to assign a real driver pointer */
1.275 + if (pInfo->info.driver[0] == '\0')
1.276 + {
1.277 + if (!m_pDefault && m_DefDriver.size() > 0)
1.278 + {
1.279 + m_pDefault = FindOrLoadDriver(m_DefDriver.c_str());
1.280 + }
1.281 + dname = m_DefDriver.size() ? m_DefDriver.c_str() : "default";
1.282 + pInfo->realDriver = m_pDefault;
1.283 + } else {
1.284 + pInfo->realDriver = FindOrLoadDriver(pInfo->info.driver);
1.285 + }
1.286 + }
1.287 +
1.288 + if (pInfo->realDriver)
1.289 + {
1.290 + if (pdr)
1.291 + {
1.292 + *pdr = pInfo->realDriver;
1.293 + }
1.294 + *pdb = pInfo->realDriver->Connect(&pInfo->info, persistent, error, maxlength);
1.295 + return (*pdb != NULL);
1.296 + }
1.297 +
1.298 + if (pdr)
1.299 + {
1.300 + *pdr = NULL;
1.301 + }
1.302 + *pdb = NULL;
1.303 +
1.304 + UTIL_Format(error, maxlength, "Driver \"%s\" not found", dname);
1.305 +
1.306 + return false;
1.307 +}
1.308 +
1.309 +void DBManager::AddDriver(IDBDriver *pDriver)
1.310 +{
1.311 + /* Let's kill the worker. Join the thread and let the queries flush.
1.312 + * This is kind of stupid but we just want to unload safely.
1.313 + * Rather than recreate the worker, we'll wait until someone throws
1.314 + * another query through.
1.315 + */
1.316 + KillWorkerThread();
1.317 +
1.318 + m_drivers.push_back(pDriver);
1.319 +}
1.320 +
1.321 +void DBManager::RemoveDriver(IDBDriver *pDriver)
1.322 +{
1.323 + /* Again, we're forced to kill the worker. How rude!
1.324 + * Doing this flushes the queue, and thus we don't need to
1.325 + * clean anything else.
1.326 + */
1.327 + KillWorkerThread();
1.328 +
1.329 + for (size_t i=0; i<m_drivers.size(); i++)
1.330 + {
1.331 + if (m_drivers[i] == pDriver)
1.332 + {
1.333 + m_drivers.erase(m_drivers.iterAt(i));
1.334 + break;
1.335 + }
1.336 + }
1.337 +
1.338 + /* Make sure NOTHING references this! */
1.339 + List<ConfDbInfo>::iterator iter;
1.340 + for (iter=m_confs.begin(); iter!=m_confs.end(); iter++)
1.341 + {
1.342 + ConfDbInfo &db = (*iter);
1.343 + if (db.realDriver == pDriver)
1.344 + {
1.345 + db.realDriver = NULL;
1.346 + }
1.347 + }
1.348 +
1.349 + /* Now that the driver is gone, we have to test the think queue.
1.350 + * Whatever happens therein is up to the db op!
1.351 + */
1.352 + Queue<IDBThreadOperation *>::iterator qiter = m_ThinkQueue.begin();
1.353 + Queue<IDBThreadOperation *> templist;
1.354 + while (qiter != m_ThinkQueue.end())
1.355 + {
1.356 + IDBThreadOperation *op = (*qiter);
1.357 + if (op->GetDriver() == pDriver)
1.358 + {
1.359 + templist.push(op);
1.360 + qiter = m_ThinkQueue.erase(qiter);
1.361 + } else {
1.362 + qiter++;
1.363 + }
1.364 + }
1.365 +
1.366 + for (qiter = templist.begin();
1.367 + qiter != templist.end();
1.368 + qiter++)
1.369 + {
1.370 + IDBThreadOperation *op = (*qiter);
1.371 + op->CancelThinkPart();
1.372 + op->Destroy();
1.373 + }
1.374 +}
1.375 +
1.376 +IDBDriver *DBManager::GetDefaultDriver()
1.377 +{
1.378 + if (!m_pDefault && m_DefDriver.size() > 0)
1.379 + {
1.380 + m_pDefault = FindOrLoadDriver(m_DefDriver.c_str());
1.381 + }
1.382 +
1.383 + return m_pDefault;
1.384 +}
1.385 +
1.386 +Handle_t DBManager::CreateHandle(DBHandleType dtype, void *ptr, IdentityToken_t *pToken)
1.387 +{
1.388 + HandleType_t type = 0;
1.389 +
1.390 + if (dtype == DBHandle_Driver)
1.391 + {
1.392 + type = m_DriverType;
1.393 + } else if (dtype == DBHandle_Database) {
1.394 + type = m_DatabaseType;
1.395 + } else {
1.396 + return BAD_HANDLE;
1.397 + }
1.398 +
1.399 + return g_HandleSys.CreateHandle(type, ptr, pToken, g_pCoreIdent, NULL);
1.400 +}
1.401 +
1.402 +HandleError DBManager::ReadHandle(Handle_t hndl, DBHandleType dtype, void **ptr)
1.403 +{
1.404 + HandleType_t type = 0;
1.405 +
1.406 + if (dtype == DBHandle_Driver)
1.407 + {
1.408 + type = m_DriverType;
1.409 + } else if (dtype == DBHandle_Database) {
1.410 + type = m_DatabaseType;
1.411 + } else {
1.412 + return HandleError_Type;
1.413 + }
1.414 +
1.415 + HandleSecurity sec(NULL, g_pCoreIdent);
1.416 +
1.417 + return g_HandleSys.ReadHandle(hndl, type, &sec, ptr);
1.418 +}
1.419 +
1.420 +HandleError DBManager::ReleaseHandle(Handle_t hndl, DBHandleType type, IdentityToken_t *token)
1.421 +{
1.422 + HandleSecurity sec(token, g_pCoreIdent);
1.423 + return g_HandleSys.FreeHandle(hndl, &sec);
1.424 +}
1.425 +
1.426 +unsigned int DBManager::GetDriverCount()
1.427 +{
1.428 + return (unsigned int)m_drivers.size();
1.429 +}
1.430 +
1.431 +IDBDriver *DBManager::GetDriver(unsigned int index)
1.432 +{
1.433 + if (index >= m_drivers.size())
1.434 + {
1.435 + return NULL;
1.436 + }
1.437 +
1.438 + return m_drivers[index];
1.439 +}
1.440 +
1.441 +const DatabaseInfo *DBManager::FindDatabaseConf(const char *name)
1.442 +{
1.443 + ConfDbInfo *info = GetDatabaseConf(name);
1.444 + if (!info)
1.445 + {
1.446 + return NULL;
1.447 + }
1.448 +
1.449 + return &info->info;
1.450 +}
1.451 +
1.452 +ConfDbInfo *DBManager::GetDatabaseConf(const char *name)
1.453 +{
1.454 + List<ConfDbInfo>::iterator iter;
1.455 +
1.456 + for (iter=m_confs.begin(); iter!=m_confs.end(); iter++)
1.457 + {
1.458 + ConfDbInfo &conf = (*iter);
1.459 + if (strcmp(m_StrTab.GetString(conf.name), name) == 0)
1.460 + {
1.461 + return &conf;
1.462 + }
1.463 + }
1.464 +
1.465 + return NULL;
1.466 +}
1.467 +
1.468 +IDBDriver *DBManager::FindOrLoadDriver(const char *name)
1.469 +{
1.470 + size_t last_size = m_drivers.size();
1.471 + for (size_t i=0; i<last_size; i++)
1.472 + {
1.473 + if (strcmp(m_drivers[i]->GetIdentifier(), name) == 0)
1.474 + {
1.475 + return m_drivers[i];
1.476 + }
1.477 + }
1.478 +
1.479 + char filename[PLATFORM_MAX_PATH];
1.480 + UTIL_Format(filename, sizeof(filename), "dbi.%s.ext", name);
1.481 +
1.482 + IExtension *pExt = g_Extensions.LoadAutoExtension(filename);
1.483 + if (!pExt || !pExt->IsLoaded() || m_drivers.size() <= last_size)
1.484 + {
1.485 + return NULL;
1.486 + }
1.487 +
1.488 + /* last_size is now gauranteed to be a valid index.
1.489 + * The identifier must match the name.
1.490 + */
1.491 + if (strcmp(m_drivers[last_size]->GetIdentifier(), name) == 0)
1.492 + {
1.493 + return m_drivers[last_size];
1.494 + }
1.495 +
1.496 + return NULL;
1.497 +}
1.498 +
1.499 +void DBManager::KillWorkerThread()
1.500 +{
1.501 + if (m_pWorker)
1.502 + {
1.503 + m_pWorker->Stop(false);
1.504 + g_pThreader->DestroyWorker(m_pWorker);
1.505 + m_pWorker = NULL;
1.506 + s_OneTimeThreaderErrorMsg = false;
1.507 + }
1.508 +}
1.509 +
1.510 +static IdentityToken_t *s_pAddBlock = NULL;
1.511 +
1.512 +bool DBManager::AddToThreadQueue(IDBThreadOperation *op, PrioQueueLevel prio)
1.513 +{
1.514 + if (s_pAddBlock && op->GetOwner() == s_pAddBlock)
1.515 + {
1.516 + return false;
1.517 + }
1.518 +
1.519 + if (!m_pWorker)
1.520 + {
1.521 + m_pWorker = g_pThreader->MakeWorker(this, true);
1.522 + if (!m_pWorker)
1.523 + {
1.524 + if (!s_OneTimeThreaderErrorMsg)
1.525 + {
1.526 + g_Logger.LogError("[SM] Unable to create db threader (error unknown)");
1.527 + s_OneTimeThreaderErrorMsg = true;
1.528 + }
1.529 + return false;
1.530 + }
1.531 + if (!m_pWorker->Start())
1.532 + {
1.533 + if (!s_OneTimeThreaderErrorMsg)
1.534 + {
1.535 + g_Logger.LogError("[SM] Unable to start db threader (error unknown)");
1.536 + s_OneTimeThreaderErrorMsg = true;
1.537 + }
1.538 + g_pThreader->DestroyWorker(m_pWorker);
1.539 + m_pWorker = NULL;
1.540 + return false;
1.541 + }
1.542 + }
1.543 +
1.544 + /* Add to the queue */
1.545 + {
1.546 + m_pQueueLock->Lock();
1.547 + Queue<IDBThreadOperation *> &queue = m_OpQueue.GetQueue(prio);
1.548 + queue.push(op);
1.549 + m_pQueueLock->Unlock();
1.550 + }
1.551 +
1.552 + /* Make the thread */
1.553 + m_pWorker->MakeThread(this);
1.554 +
1.555 + return true;
1.556 +}
1.557 +
1.558 +void DBManager::OnWorkerStart(IThreadWorker *pWorker)
1.559 +{
1.560 + m_drSafety.clear();
1.561 + for (size_t i=0; i<m_drivers.size(); i++)
1.562 + {
1.563 + if (m_drivers[i]->IsThreadSafe())
1.564 + {
1.565 + m_drSafety.push_back(m_drivers[i]->InitializeThreadSafety());
1.566 + } else {
1.567 + m_drSafety.push_back(false);
1.568 + }
1.569 + }
1.570 +}
1.571 +
1.572 +void DBManager::OnWorkerStop(IThreadWorker *pWorker)
1.573 +{
1.574 + for (size_t i=0; i<m_drivers.size(); i++)
1.575 + {
1.576 + if (m_drSafety[i])
1.577 + {
1.578 + m_drivers[i]->ShutdownThreadSafety();
1.579 + }
1.580 + }
1.581 + m_drSafety.clear();
1.582 +}
1.583 +
1.584 +void DBManager::RunThread(IThreadHandle *pThread)
1.585 +{
1.586 + IDBThreadOperation *op = NULL;
1.587 +
1.588 + /* Get something from the queue */
1.589 + {
1.590 + m_pQueueLock->Lock();
1.591 + Queue<IDBThreadOperation *> &queue = m_OpQueue.GetLikelyQueue();
1.592 + if (!queue.empty())
1.593 + {
1.594 + op = queue.first();
1.595 + queue.pop();
1.596 + }
1.597 + m_pQueueLock->Unlock();
1.598 + }
1.599 +
1.600 + /* whoa. hi. did we get something? we should have. */
1.601 + if (!op)
1.602 + {
1.603 + /* wtf? */
1.604 + return;
1.605 + }
1.606 +
1.607 + op->RunThreadPart();
1.608 +
1.609 + m_pThinkLock->Lock();
1.610 + m_ThinkQueue.push(op);
1.611 + m_pThinkLock->Unlock();
1.612 +}
1.613 +
1.614 +void DBManager::RunFrame()
1.615 +{
1.616 + /* Don't bother if we're empty */
1.617 + if (!m_ThinkQueue.size())
1.618 + {
1.619 + return;
1.620 + }
1.621 +
1.622 + /* Dump one thing per-frame so the server stays sane. */
1.623 + m_pThinkLock->Lock();
1.624 + IDBThreadOperation *op = m_ThinkQueue.first();
1.625 + m_ThinkQueue.pop();
1.626 + m_pThinkLock->Unlock();
1.627 + op->RunThinkPart();
1.628 + op->Destroy();
1.629 +}
1.630 +
1.631 +void DBManager::OnTerminate(IThreadHandle *pThread, bool cancel)
1.632 +{
1.633 + /* Do nothing */
1.634 +}
1.635 +
1.636 +void DBManager::OnSourceModIdentityDropped(IdentityToken_t *pToken)
1.637 +{
1.638 + s_pAddBlock = pToken;
1.639 +
1.640 + /* Kill the thread so we can flush everything into the think queue... */
1.641 + KillWorkerThread();
1.642 +
1.643 + /* Run all of the think operations.
1.644 + * Unlike the driver unloading example, we'll let these calls go through,
1.645 + * since a plugin unloading is far more normal.
1.646 + */
1.647 + Queue<IDBThreadOperation *>::iterator iter = m_ThinkQueue.begin();
1.648 + Queue<IDBThreadOperation *> templist;
1.649 + while (iter != m_ThinkQueue.end())
1.650 + {
1.651 + IDBThreadOperation *op = (*iter);
1.652 + if (op->GetOwner() == pToken)
1.653 + {
1.654 + templist.push(op);
1.655 + iter = m_ThinkQueue.erase(iter);
1.656 + } else {
1.657 + iter++;
1.658 + }
1.659 + }
1.660 +
1.661 + for (iter = templist.begin();
1.662 + iter != templist.end();
1.663 + iter++)
1.664 + {
1.665 + IDBThreadOperation *op = (*iter);
1.666 + op->RunThinkPart();
1.667 + op->Destroy();
1.668 + }
1.669 +
1.670 + s_pAddBlock = NULL;
1.671 +}
1.672 +
1.673 +void DBManager::OnPluginUnloaded(IPlugin *plugin)
1.674 +{
1.675 + /* Kill the thread so we can flush everything into the think queue... */
1.676 + KillWorkerThread();
1.677 +
1.678 + /* Mark the plugin as being unloaded so future database calls will ignore threading... */
1.679 + plugin->SetProperty("DisallowDBThreads", NULL);
1.680 +
1.681 + /* Run all of the think operations.
1.682 + * Unlike the driver unloading example, we'll let these calls go through,
1.683 + * since a plugin unloading is far more normal.
1.684 + */
1.685 + Queue<IDBThreadOperation *>::iterator iter = m_ThinkQueue.begin();
1.686 + Queue<IDBThreadOperation *> templist;
1.687 + while (iter != m_ThinkQueue.end())
1.688 + {
1.689 + IDBThreadOperation *op = (*iter);
1.690 + if (op->GetOwner() == plugin->GetIdentity())
1.691 + {
1.692 + templist.push(op);
1.693 + iter = m_ThinkQueue.erase(iter);
1.694 + } else {
1.695 + iter++;
1.696 + }
1.697 + }
1.698 +
1.699 + for (iter = templist.begin();
1.700 + iter != templist.end();
1.701 + iter++)
1.702 + {
1.703 + IDBThreadOperation *op = (*iter);
1.704 + op->RunThinkPart();
1.705 + op->Destroy();
1.706 + }
1.707 +}
1.708 +
1.709 +void DBManager::LockConfig()
1.710 +{
1.711 + m_pConfigLock->Lock();
1.712 +}
1.713 +
1.714 +void DBManager::UnlockConfig()
1.715 +{
1.716 + m_pConfigLock->Unlock();
1.717 +}
1.718 +
1.719 +const char *DBManager::GetDefaultDriverName()
1.720 +{
1.721 + return m_DefDriver.c_str();
1.722 +}
