Atmosphere/libraries/libstratosphere/source/sf/hipc/sf_hipc_api.cpp
2021-10-04 14:54:13 -07:00

95 lines
4.2 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/>.
*/
#include <stratosphere.hpp>
namespace ams::sf::hipc {
namespace {
ALWAYS_INLINE Result ReceiveImpl(os::NativeHandle session_handle, void *message_buf, size_t message_buf_size) {
s32 unused_index;
if (message_buf == svc::GetThreadLocalRegion()->message_buffer) {
/* Consider: AMS_ABORT_UNLESS(message_buf_size == TlsMessageBufferSize); */
return svc::ReplyAndReceive(&unused_index, &session_handle, 1, svc::InvalidHandle, std::numeric_limits<u64>::max());
} else {
return svc::ReplyAndReceiveWithUserBuffer(&unused_index, reinterpret_cast<uintptr_t>(message_buf), message_buf_size, &session_handle, 1, svc::InvalidHandle, std::numeric_limits<u64>::max());
}
}
ALWAYS_INLINE Result ReplyImpl(os::NativeHandle session_handle, void *message_buf, size_t message_buf_size) {
s32 unused_index;
if (message_buf == svc::GetThreadLocalRegion()->message_buffer) {
/* Consider: AMS_ABORT_UNLESS(message_buf_size == TlsMessageBufferSize); */
return svc::ReplyAndReceive(&unused_index, &session_handle, 0, session_handle, 0);
} else {
return svc::ReplyAndReceiveWithUserBuffer(&unused_index, reinterpret_cast<uintptr_t>(message_buf), message_buf_size, &session_handle, 0, session_handle, 0);
}
}
}
void AttachMultiWaitHolderForAccept(os::MultiWaitHolderType *holder, os::NativeHandle port) {
return os::InitializeMultiWaitHolder(holder, port);
}
void AttachMultiWaitHolderForReply(os::MultiWaitHolderType *holder, os::NativeHandle request) {
return os::InitializeMultiWaitHolder(holder, request);
}
Result Receive(ReceiveResult *out_recv_result, os::NativeHandle session_handle, const cmif::PointerAndSize &message_buffer) {
R_TRY_CATCH(ReceiveImpl(session_handle, message_buffer.GetPointer(), message_buffer.GetSize())) {
R_CATCH(svc::ResultSessionClosed) {
*out_recv_result = ReceiveResult::Closed;
return ResultSuccess();
}
R_CATCH(svc::ResultReceiveListBroken) {
*out_recv_result = ReceiveResult::NeedsRetry;
return ResultSuccess();
}
} R_END_TRY_CATCH;
*out_recv_result = ReceiveResult::Success;
return ResultSuccess();
}
Result Receive(bool *out_closed, os::NativeHandle session_handle, const cmif::PointerAndSize &message_buffer) {
R_TRY_CATCH(ReceiveImpl(session_handle, message_buffer.GetPointer(), message_buffer.GetSize())) {
R_CATCH(svc::ResultSessionClosed) {
*out_closed = true;
return ResultSuccess();
}
} R_END_TRY_CATCH;
*out_closed = false;
return ResultSuccess();
}
Result Reply(os::NativeHandle session_handle, const cmif::PointerAndSize &message_buffer) {
R_TRY_CATCH(ReplyImpl(session_handle, message_buffer.GetPointer(), message_buffer.GetSize())) {
R_CONVERT(svc::ResultTimedOut, ResultSuccess())
R_CONVERT(svc::ResultSessionClosed, ResultSuccess())
} R_END_TRY_CATCH;
/* ReplyImpl should *always* return an error. */
AMS_ABORT_UNLESS(false);
}
Result CreateSession(os::NativeHandle *out_server_handle, os::NativeHandle *out_client_handle) {
R_TRY_CATCH(svc::CreateSession(out_server_handle, out_client_handle, 0, 0)) {
R_CONVERT(svc::ResultOutOfResource, sf::hipc::ResultOutOfSessions());
} R_END_TRY_CATCH;
return ResultSuccess();
}
}