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author | bunnei <bunneidev@gmail.com> | 2021-04-14 02:48:37 +0200 |
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committer | bunnei <bunneidev@gmail.com> | 2021-05-06 01:40:51 +0200 |
commit | 7444963bbb300cff269e410948de7fa577f5ff16 (patch) | |
tree | 6e0000cb345dc02c8f2ca38958b7c90383f45b03 /src/core/hle/kernel/k_server_session.cpp | |
parent | hle: kernel: svc: Migrate GetThreadContext, GetThreadCoreMask. (diff) | |
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Diffstat (limited to 'src/core/hle/kernel/k_server_session.cpp')
-rw-r--r-- | src/core/hle/kernel/k_server_session.cpp | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/src/core/hle/kernel/k_server_session.cpp b/src/core/hle/kernel/k_server_session.cpp new file mode 100644 index 000000000..8cd2c283c --- /dev/null +++ b/src/core/hle/kernel/k_server_session.cpp @@ -0,0 +1,164 @@ +// Copyright 2019 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <tuple> +#include <utility> + +#include "common/assert.h" +#include "common/common_types.h" +#include "common/logging/log.h" +#include "core/core_timing.h" +#include "core/hle/ipc_helpers.h" +#include "core/hle/kernel/client_port.h" +#include "core/hle/kernel/handle_table.h" +#include "core/hle/kernel/hle_ipc.h" +#include "core/hle/kernel/k_scheduler.h" +#include "core/hle/kernel/k_server_session.h" +#include "core/hle/kernel/k_session.h" +#include "core/hle/kernel/k_thread.h" +#include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/process.h" +#include "core/memory.h" + +namespace Kernel { + +KServerSession::KServerSession(KernelCore& kernel) : KSynchronizationObject{kernel} {} + +KServerSession::~KServerSession() { + kernel.ReleaseServiceThread(service_thread); +} + +void KServerSession::Initialize(KSession* parent_, std::string&& name_) { + // Set member variables. + parent = parent_; + name = std::move(name_); + service_thread = kernel.CreateServiceThread(name); +} + +void KServerSession::Destroy() { + parent->OnServerClosed(); + + parent->Close(); +} + +void KServerSession::OnClientClosed() { + // We keep a shared pointer to the hle handler to keep it alive throughout + // the call to ClientDisconnected, as ClientDisconnected invalidates the + // hle_handler member itself during the course of the function executing. + std::shared_ptr<SessionRequestHandler> handler = hle_handler; + if (handler) { + // Note that after this returns, this server session's hle_handler is + // invalidated (set to null). + handler->ClientDisconnected(parent); + } +} + +bool KServerSession::IsSignaled() const { + ASSERT(kernel.GlobalSchedulerContext().IsLocked()); + + // If the client is closed, we're always signaled. + if (parent->IsClientClosed()) { + return true; + } + + // Otherwise, we're signaled if we have a request and aren't handling one. + return false; +} + +void KServerSession::AppendDomainRequestHandler(std::shared_ptr<SessionRequestHandler> handler) { + domain_request_handlers.push_back(std::move(handler)); +} + +std::size_t KServerSession::NumDomainRequestHandlers() const { + return domain_request_handlers.size(); +} + +ResultCode KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& context) { + if (!context.HasDomainMessageHeader()) { + return RESULT_SUCCESS; + } + + // Set domain handlers in HLE context, used for domain objects (IPC interfaces) as inputs + context.SetDomainRequestHandlers(domain_request_handlers); + + // If there is a DomainMessageHeader, then this is CommandType "Request" + const auto& domain_message_header = context.GetDomainMessageHeader(); + const u32 object_id{domain_message_header.object_id}; + switch (domain_message_header.command) { + case IPC::DomainMessageHeader::CommandType::SendMessage: + if (object_id > domain_request_handlers.size()) { + LOG_CRITICAL(IPC, + "object_id {} is too big! This probably means a recent service call " + "to {} needed to return a new interface!", + object_id, name); + UNREACHABLE(); + return RESULT_SUCCESS; // Ignore error if asserts are off + } + return domain_request_handlers[object_id - 1]->HandleSyncRequest(context); + + case IPC::DomainMessageHeader::CommandType::CloseVirtualHandle: { + LOG_DEBUG(IPC, "CloseVirtualHandle, object_id=0x{:08X}", object_id); + + domain_request_handlers[object_id - 1] = nullptr; + + IPC::ResponseBuilder rb{context, 2}; + rb.Push(RESULT_SUCCESS); + return RESULT_SUCCESS; + } + } + + LOG_CRITICAL(IPC, "Unknown domain command={}", domain_message_header.command.Value()); + ASSERT(false); + return RESULT_SUCCESS; +} + +ResultCode KServerSession::QueueSyncRequest(KThread* thread, Core::Memory::Memory& memory) { + u32* cmd_buf{reinterpret_cast<u32*>(memory.GetPointer(thread->GetTLSAddress()))}; + auto context = std::make_shared<HLERequestContext>(kernel, memory, this, thread); + + context->PopulateFromIncomingCommandBuffer(kernel.CurrentProcess()->GetHandleTable(), cmd_buf); + + if (auto strong_ptr = service_thread.lock()) { + strong_ptr->QueueSyncRequest(*parent, std::move(context)); + return RESULT_SUCCESS; + } + + return RESULT_SUCCESS; +} + +ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) { + ResultCode result = RESULT_SUCCESS; + // If the session has been converted to a domain, handle the domain request + if (IsDomain() && context.HasDomainMessageHeader()) { + result = HandleDomainSyncRequest(context); + // If there is no domain header, the regular session handler is used + } else if (hle_handler != nullptr) { + // If this ServerSession has an associated HLE handler, forward the request to it. + result = hle_handler->HandleSyncRequest(context); + } + + if (convert_to_domain) { + ASSERT_MSG(IsSession(), "ServerSession is already a domain instance."); + domain_request_handlers = {hle_handler}; + convert_to_domain = false; + } + + // Some service requests require the thread to block + { + KScopedSchedulerLock lock(kernel); + if (!context.IsThreadWaiting()) { + context.GetThread().Wakeup(); + context.GetThread().SetSyncedObject(nullptr, result); + } + } + + return result; +} + +ResultCode KServerSession::HandleSyncRequest(KThread* thread, Core::Memory::Memory& memory, + Core::Timing::CoreTiming& core_timing) { + return QueueSyncRequest(thread, memory); +} + +} // namespace Kernel |