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27a4564fec
CDClientSnapshot converts a copy of the client's fdb into its own CDServer-<hash>.sqlite with the cdserver migrations applied, on its own connection. CDClientDatabase::Reconnect opens the new file before letting go of the old one; CDClientManager::Reload empties every table (old entries kept alive so references from spawned objects stay valid), retires the old fdb view and loads again. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
#ifndef __CDCLIENTMANAGER__H__
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#define __CDCLIENTMANAGER__H__
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#define UNUSED_TABLE(v)
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#include <filesystem>
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/**
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* Initialize the CDClient tables so they are all loaded into memory.
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*/
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namespace CDClientManager {
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/**
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* @param fdbPath The client's cdclient.fdb. When it opens, the tables looked up by their first
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* column read their rows from it (shared between processes) instead of caching them. Empty, or
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* a file that doesn't open, keeps every table on CDServer.sqlite.
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*/
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void LoadValuesFromDatabase(const std::filesystem::path& fdbPath = {});
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void LoadValuesFromDefaults();
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/**
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* Loads every table again after a CDClient reload (the caller has already reconnected CDClientDatabase to the new
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* CDServer.sqlite). Each table's old entries are emptied out but kept alive, and so is the old fdb's view, so a
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* reference an entity took from a table before the reload stays valid: what is spawned keeps what it loaded, and
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* what is made afterwards reads the new data. Main thread only.
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*/
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void Reload(const std::filesystem::path& fdbPath);
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// The first half of Reload: lets go of the fdb and empties every table, keeping the old entries alive
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void ResetTables();
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// How many tables ResetTables empties
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uint32_t GetTableCount();
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/**
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* Fetch a table from CDClient
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*
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* @tparam Table type to fetch
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* @return A pointer to the requested table.
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*/
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template<typename T>
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T* GetTable();
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/**
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* Fetch a table from CDClient
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* Note: Calling this function without a template specialization in CDClientManager.cpp will cause a linker error.
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*
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* @tparam Table type to fetch
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* @return A pointer to the requested table.
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*/
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template<typename T>
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typename T::StorageType& GetEntriesMutable();
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};
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// These are included after the CDClientManager namespace declaration as CDTable as of Jan 29 2024 relies on CDClientManager in Templated code.
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#include "CDTable.h"
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#include "Singleton.h"
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template<typename T>
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T* CDClientManager::GetTable() {
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return &T::Instance();
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};
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#endif //!__CDCLIENTMANAGER__H__
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