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core: service: Add FunctionInfoTyped to allow expanding existing interfaces

This commit is contained in:
german77 2023-04-25 23:33:05 -06:00 committed by Narr the Reg
parent 00d76fc5f5
commit 5e16fe4579
1 changed files with 12 additions and 8 deletions
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20
src/core/hle/service/service.h
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@ -142,7 +142,8 @@ template <typename Self>
class ServiceFramework : public ServiceFrameworkBase {
protected:
/// Contains information about a request type which is handled by the service.
struct FunctionInfo : FunctionInfoBase {
template <typename T>
struct FunctionInfoTyped : FunctionInfoBase {
// TODO(yuriks): This function could be constexpr, but clang is the only compiler that
// doesn't emit an ICE or a wrong diagnostic because of the static_cast.
@ -155,12 +156,13 @@ protected:
* the request
* @param name_ human-friendly name for the request. Used mostly for logging purposes.
*/
FunctionInfo(u32 expected_header_, HandlerFnP<Self> handler_callback_, const char* name_)
FunctionInfoTyped(u32 expected_header_, HandlerFnP<T> handler_callback_, const char* name_)
: FunctionInfoBase{
expected_header_,
// Type-erase member function pointer by casting it down to the base class.
static_cast<HandlerFnP<ServiceFrameworkBase>>(handler_callback_), name_} {}
};
using FunctionInfo = FunctionInfoTyped<Self>;
/**
* Initializes the handler with no functions installed.
@ -175,8 +177,8 @@ protected:
: ServiceFrameworkBase(system_, service_name_, max_sessions_, Invoker) {}
/// Registers handlers in the service.
template <std::size_t N>
void RegisterHandlers(const FunctionInfo (&functions)[N]) {
template <typename T = Self, std::size_t N>
void RegisterHandlers(const FunctionInfoTyped<T> (&functions)[N]) {
RegisterHandlers(functions, N);
}
@ -184,13 +186,14 @@ protected:
* Registers handlers in the service. Usually prefer using the other RegisterHandlers
* overload in order to avoid needing to specify the array size.
*/
void RegisterHandlers(const FunctionInfo* functions, std::size_t n) {
template <typename T = Self>
void RegisterHandlers(const FunctionInfoTyped<T>* functions, std::size_t n) {
RegisterHandlersBase(functions, n);
}
/// Registers handlers in the service.
template <std::size_t N>
void RegisterHandlersTipc(const FunctionInfo (&functions)[N]) {
template <typename T = Self, std::size_t N>
void RegisterHandlersTipc(const FunctionInfoTyped<T> (&functions)[N]) {
RegisterHandlersTipc(functions, N);
}
@ -198,7 +201,8 @@ protected:
* Registers handlers in the service. Usually prefer using the other RegisterHandlers
* overload in order to avoid needing to specify the array size.
*/
void RegisterHandlersTipc(const FunctionInfo* functions, std::size_t n) {
template <typename T = Self>
void RegisterHandlersTipc(const FunctionInfoTyped<T>* functions, std::size_t n) {
RegisterHandlersBaseTipc(functions, n);
}