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a4fa7eb30a
The world and master servers pass the client's res/cdclient.fdb to CDClientManager. When it opens, these three tables, all looked up by their first column, find rows through the fdb's buckets instead of each process caching the whole table: ComponentsRegistry keeps nothing, ItemComponent and Objects keep only the entries asked for (their API returns references). Ids whose rows CDServer.sqlite changes are loaded from SQLite at startup and win. Without an fdb (or with one whose columns don't match) the tables load from CDServer.sqlite as before. ItemComponent and Objects now fill entries from one template for both sources instead of copies of the same field list. Tests cover the SQLite changes on top of the fdb, the no-fdb and unmapped paths, and, when DLU_CLIENT_RES points at a client, every id of the three tables through the fdb against CDServer.sqlite. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
#include "CDComponentsRegistryTable.h"
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#include "CDFdb.h"
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#include "Logger.h"
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#include "eReplicaComponentType.h"
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void CDComponentsRegistryTable::LoadValuesFromDatabase() {
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// Now get the data
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auto tableData = CDClientDatabase::ExecuteQuery("SELECT * FROM ComponentsRegistry");
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auto& entries = GetEntriesMutable();
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while (!tableData.eof()) {
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CDComponentsRegistry entry;
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entry.id = tableData.getIntField("id", -1);
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entry.component_type = static_cast<eReplicaComponentType>(tableData.getIntField("component_type", 0));
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entry.component_id = tableData.getIntField("component_id", -1);
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entries.insert_or_assign(static_cast<uint64_t>(entry.component_type) << 32 | static_cast<uint64_t>(entry.id), entry.component_id);
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entries.insert_or_assign(entry.id, 0);
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tableData.nextRow();
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}
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tableData.finalize();
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}
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bool CDComponentsRegistryTable::LoadFromFdb() {
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m_FdbTable = nullptr;
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const auto* table = CDFdb::GetTable("ComponentsRegistry");
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if (!table) return false;
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m_TypeColumn = table->GetColumnIndex("component_type");
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m_ComponentIdColumn = table->GetColumnIndex("component_id");
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if (m_TypeColumn < 0 || m_ComponentIdColumn < 0) return false;
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const auto changed = CDFdb::FindChangedKeys(*table);
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if (!changed) return false;
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// Ids whose rows CDServer.sqlite changes are read from it once and kept; everything else comes from the fdb
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for (const auto id : *changed) LoadFromSqlite(static_cast<uint32_t>(id));
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LOG("ComponentsRegistry: reading from the fdb, %zu ids differ in CDServer.sqlite and are kept in memory", changed->size());
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m_FdbTable = table;
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return true;
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}
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void CDComponentsRegistryTable::LoadFromSqlite(uint32_t id) {
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auto& entries = GetEntriesMutable();
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// Get all components of this entity so we dont do a query for each component
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auto query = CDClientDatabase::CreatePreppedStmt("SELECT * FROM ComponentsRegistry WHERE id = ?;");
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query.bind(1, static_cast<int32_t>(id));
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auto tableData = query.execQuery();
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while (!tableData.eof()) {
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CDComponentsRegistry entry;
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entry.id = tableData.getIntField("id", -1);
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entry.component_type = static_cast<eReplicaComponentType>(tableData.getIntField("component_type", 0));
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entry.component_id = tableData.getIntField("component_id", -1);
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entries.insert_or_assign(static_cast<uint64_t>(entry.component_type) << 32 | static_cast<uint64_t>(entry.id), entry.component_id);
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tableData.nextRow();
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}
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entries.insert_or_assign(id, 0);
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}
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int32_t CDComponentsRegistryTable::GetByIDAndType(uint32_t id, eReplicaComponentType componentType, int32_t defaultValue) {
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auto& entries = GetEntriesMutable();
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auto exists = entries.find(id);
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if (exists != entries.end()) {
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auto iter = entries.find(static_cast<uint64_t>(componentType) << 32 | static_cast<uint64_t>(id));
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return iter == entries.end() ? defaultValue : iter->second;
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}
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if (m_FdbTable) {
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// The last matching row wins, as when the rows are loaded into the map in file order
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int32_t result = defaultValue;
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const auto type = static_cast<int32_t>(componentType);
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m_FdbTable->ForEachRowWithKey(static_cast<int32_t>(id), [&](const FdbReader::Row& row) {
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if (row.GetInt(static_cast<uint32_t>(m_TypeColumn), 0) == type) {
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result = row.GetInt(static_cast<uint32_t>(m_ComponentIdColumn), -1);
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}
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});
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return result;
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}
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LoadFromSqlite(id);
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auto iter = entries.find(static_cast<uint64_t>(componentType) << 32 | static_cast<uint64_t>(id));
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return iter == entries.end() ? defaultValue : iter->second;
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}
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