Mercurial > foo_out_sdl
diff foosdk/sdk/foobar2000/SDK/service_by_guid.h @ 1:20d02a178406 default tip
*: check in everything else
yay
| author | Paper <paper@tflc.us> |
|---|---|
| date | Mon, 05 Jan 2026 02:15:46 -0500 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/foosdk/sdk/foobar2000/SDK/service_by_guid.h Mon Jan 05 02:15:46 2026 -0500 @@ -0,0 +1,100 @@ +#pragma once +#include <pfc/map.h> + + + +template<typename what> +static bool service_by_guid_fallback(service_ptr_t<what> & out, const GUID & id) { + for (auto ptr : what::enumerate()) { + if (ptr->get_guid() == id) { out = ptr; return true; } + } + return false; +} + +template<typename what> +class service_by_guid_data { +public: + service_by_guid_data() : m_inited(), m_servClass() {} + + bool ready() const {return m_inited;} + + // Caller must ensure initialize call before create() as well as thread safety of initialize() calls. The rest of this class is thread safe (only reads member data). + void initialize() { + if (m_inited) return; + pfc::assert_same_type< what, typename what::t_interface_entrypoint >(); + m_servClass = service_factory_base::enum_find_class(what::class_guid); + const t_size servCount = service_factory_base::enum_get_count(m_servClass); + for(t_size walk = 0; walk < servCount; ++walk) { + service_ptr_t<what> temp; + if (_service_instantiate_helper(temp, m_servClass, walk)) { + m_order.set(temp->get_guid(), walk); + } + } + m_inited = true; + } + + bool create(service_ptr_t<what> & out, const GUID & theID) const { + PFC_ASSERT(m_inited); + t_size index; + if (!m_order.query(theID,index)) return false; + return _service_instantiate_helper(out, m_servClass, index); + } + service_ptr_t<what> create(const GUID & theID) const { + service_ptr_t<what> temp; if (!crete(temp,theID)) throw exception_service_not_found(); return temp; + } + +private: + volatile bool m_inited; + pfc::map_t<GUID,t_size> m_order; + service_class_ref m_servClass; +}; + +template<typename what> +class _service_by_guid_data_container { +public: + static service_by_guid_data<what> data; +}; +template<typename what> service_by_guid_data<what> _service_by_guid_data_container<what>::data; + + +template<typename what> +static void service_by_guid_init() { + service_by_guid_data<what> & data = _service_by_guid_data_container<what>::data; + data.initialize(); +} +template<typename what> +static bool service_by_guid(service_ptr_t<what> & out, const GUID & theID) { + pfc::assert_same_type< what, typename what::t_interface_entrypoint >(); + service_by_guid_data<what> & data = _service_by_guid_data_container<what>::data; + if (data.ready()) { + //fall-thru + } else if (core_api::is_main_thread()) { + data.initialize(); + } else { +#if PFC_DEBUG + FB2K_DebugLog() << "Warning: service_by_guid() used in non-main thread without initialization, using fallback"; +#endif + return service_by_guid_fallback(out,theID); + } + return data.create(out,theID); +} +template<typename what> +static service_ptr_t<what> service_by_guid(const GUID & theID) { + service_ptr_t<what> temp; + if (!service_by_guid(temp, theID)) { +#if PFC_DEBUG + FB2K_DebugLog() << "service_by_guid failure: " << what::debugServiceName() << " : " << pfc::print_guid( theID ); +#endif + throw exception_service_not_found(); + } + return temp; +} + + + + +class comparator_service_guid { +public: + template<typename what> static int compare(const what & v1, const what & v2) { return pfc::compare_t(v1->get_guid(), v2->get_guid()); } +}; +
