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Atmosphere/stratosphere/sm/source/sm_user_service.hpp
Léo Lam 496adb0018
Minor header fixes to reduce parsing issues with Clang (#1700)
* Work around Clang's incomplete C++20 support for omitting typename

* vapours: fix Clang error about missing return in constexpr function

* stratosphere: fix call to non-constexpr strlen in constexpr function

strlen being constexpr is a non-compliant GCC extension; Clang
explicitly rejects it: https://reviews.llvm.org/D23692

* stratosphere: add a bunch of missing override specifiers

* stratosphere: work around Clang consteval bug

Minimal example: https://godbolt.org/z/MoM64v93M

The issue seems to be that Clang does not consider f(x) to be a
constant expression if x comes from a template argument that isn't
a non-type auto template argument (???)

We can work around this by relaxing GetMessageHeaderForCheck (by using
constexpr instead of consteval). This produces no functional changes
because the result of GetMessageHeaderForCheck() is assigned to a
constexpr variable, so the result is guaranteed to be computed
at compile-time.

* stratosphere: fix missing require clauses in definitions

GCC not requiring the require clauses to be repeated for member
definitions is actually a compiler bug:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96830

Clang rejects declarations with missing require clauses.

* Fix ALWAYS_INLINE_LAMBDA and parameter list relative order

While GCC doesn't seem to care about the position of the always_inline
attribute relative to the parameter list, Clang is very picky
and requires the attribute to appear after the parameter list
(and before a trailing return type)

* stratosphere: fix static constexpr member variable with incomplete type

GCC accepts this for some reason (because of the lambda?) but Clang
correctly rejects this.
2021-11-06 18:19:34 -07:00

125 lines
5.4 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stratosphere.hpp>
#include "impl/sm_service_manager.hpp"
namespace ams::sm {
/* Service definition. */
class UserService : public tipc::DeferrableBase {
private:
os::ProcessId m_process_id;
bool m_initialized;
public:
UserService() : m_process_id{os::InvalidProcessId}, m_initialized{false} { /* ... */ }
~UserService() {
if (m_initialized) {
impl::OnClientDisconnected(m_process_id);
}
}
public:
/* Official commands. */
Result RegisterClient(const tipc::ClientProcessId client_process_id) {
m_process_id = client_process_id.value;
m_initialized = true;
return ResultSuccess();
}
Result GetServiceHandle(tipc::OutMoveHandle out_h, ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return this->RegisterRetryIfDeferred(service, [&]() ALWAYS_INLINE_LAMBDA -> Result {
return impl::GetServiceHandle(out_h.GetPointer(), m_process_id, service);
});
}
Result RegisterService(tipc::OutMoveHandle out_h, ServiceName service, u32 max_sessions, bool is_light) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return impl::RegisterService(out_h.GetPointer(), m_process_id, service, max_sessions, is_light);
}
Result UnregisterService(ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return impl::UnregisterService(m_process_id, service);
}
Result DetachClient(const tipc::ClientProcessId client_process_id) {
AMS_UNUSED(client_process_id);
m_initialized = false;
return ResultSuccess();
}
/* Atmosphere commands. */
Result AtmosphereInstallMitm(tipc::OutMoveHandle srv_h, tipc::OutMoveHandle qry_h, ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return this->RegisterRetryIfDeferred(service, [&]() ALWAYS_INLINE_LAMBDA -> Result {
return impl::InstallMitm(srv_h.GetPointer(), qry_h.GetPointer(), m_process_id, service);
});
}
Result AtmosphereUninstallMitm(ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return impl::UninstallMitm(m_process_id, service);
}
Result AtmosphereAcknowledgeMitmSession(tipc::Out<MitmProcessInfo> client_info, tipc::OutMoveHandle fwd_h, ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return impl::AcknowledgeMitmSession(client_info.GetPointer(), fwd_h.GetPointer(), m_process_id, service);
}
Result AtmosphereHasMitm(tipc::Out<bool> out, ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return impl::HasMitm(out.GetPointer(), service);
}
Result AtmosphereWaitMitm(ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return this->RegisterRetryIfDeferred(service, [&]() ALWAYS_INLINE_LAMBDA -> Result {
return impl::WaitMitm(service);
});
}
Result AtmosphereDeclareFutureMitm(ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return impl::DeclareFutureMitm(m_process_id, service);
}
Result AtmosphereClearFutureMitm(ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return impl::ClearFutureMitm(m_process_id, service);
}
Result AtmosphereHasService(tipc::Out<bool> out, ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return impl::HasService(out.GetPointer(), service);
}
Result AtmosphereWaitService(ServiceName service) {
R_UNLESS(m_initialized, sm::ResultInvalidClient());
return this->RegisterRetryIfDeferred(service, [&]() ALWAYS_INLINE_LAMBDA -> Result {
return impl::WaitService(service);
});
}
public:
/* Backwards compatibility layer for cmif. */
Result ProcessDefaultServiceCommand(const svc::ipc::MessageBuffer &message_buffer);
};
static_assert(sm::impl::IsIUserInterface<UserService>);
static_assert(tipc::IsDeferrable<UserService>);
/* TODO: static assert that this is a tipc interface with default prototyping. */
}