Merge pull request #12296 from liamwhite/client-session
kernel: implement remaining IPC syscalls
This commit is contained in:
commit
875568bb3e
6 changed files with 252 additions and 113 deletions
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@ -10,9 +10,7 @@
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namespace Kernel {
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namespace Kernel {
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static constexpr u32 MessageBufferSize = 0x100;
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KClientSession::KClientSession(KernelCore& kernel) : KAutoObject{kernel} {}
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KClientSession::KClientSession(KernelCore& kernel) : KAutoObjectWithSlabHeapAndContainer{kernel} {}
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KClientSession::~KClientSession() = default;
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KClientSession::~KClientSession() = default;
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void KClientSession::Destroy() {
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void KClientSession::Destroy() {
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@ -22,18 +20,30 @@ void KClientSession::Destroy() {
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void KClientSession::OnServerClosed() {}
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void KClientSession::OnServerClosed() {}
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Result KClientSession::SendSyncRequest() {
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Result KClientSession::SendSyncRequest(uintptr_t address, size_t size) {
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// Create a session request.
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// Create a session request.
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KSessionRequest* request = KSessionRequest::Create(m_kernel);
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KSessionRequest* request = KSessionRequest::Create(m_kernel);
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R_UNLESS(request != nullptr, ResultOutOfResource);
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R_UNLESS(request != nullptr, ResultOutOfResource);
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SCOPE_EXIT({ request->Close(); });
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SCOPE_EXIT({ request->Close(); });
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// Initialize the request.
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// Initialize the request.
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request->Initialize(nullptr, GetInteger(GetCurrentThread(m_kernel).GetTlsAddress()),
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request->Initialize(nullptr, address, size);
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MessageBufferSize);
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// Send the request.
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// Send the request.
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R_RETURN(m_parent->GetServerSession().OnRequest(request));
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R_RETURN(m_parent->OnRequest(request));
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}
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Result KClientSession::SendAsyncRequest(KEvent* event, uintptr_t address, size_t size) {
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// Create a session request.
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KSessionRequest* request = KSessionRequest::Create(m_kernel);
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R_UNLESS(request != nullptr, ResultOutOfResource);
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SCOPE_EXIT({ request->Close(); });
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// Initialize the request.
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request->Initialize(event, address, size);
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// Send the request.
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R_RETURN(m_parent->OnRequest(request));
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}
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}
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} // namespace Kernel
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} // namespace Kernel
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@ -9,24 +9,12 @@
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#include "core/hle/kernel/slab_helpers.h"
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#include "core/hle/kernel/slab_helpers.h"
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#include "core/hle/result.h"
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#include "core/hle/result.h"
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union Result;
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namespace Core::Memory {
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class Memory;
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}
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namespace Core::Timing {
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class CoreTiming;
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}
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namespace Kernel {
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namespace Kernel {
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class KernelCore;
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class KernelCore;
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class KSession;
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class KSession;
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class KThread;
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class KClientSession final
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class KClientSession final : public KAutoObject {
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: public KAutoObjectWithSlabHeapAndContainer<KClientSession, KAutoObjectWithList> {
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KERNEL_AUTOOBJECT_TRAITS(KClientSession, KAutoObject);
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KERNEL_AUTOOBJECT_TRAITS(KClientSession, KAutoObject);
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public:
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public:
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@ -39,13 +27,13 @@ public:
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}
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}
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void Destroy() override;
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void Destroy() override;
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static void PostDestroy(uintptr_t arg) {}
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KSession* GetParent() const {
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KSession* GetParent() const {
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return m_parent;
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return m_parent;
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}
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}
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Result SendSyncRequest();
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Result SendSyncRequest(uintptr_t address, size_t size);
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Result SendAsyncRequest(KEvent* event, uintptr_t address, size_t size);
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void OnServerClosed();
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void OnServerClosed();
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@ -453,6 +453,11 @@ Result KServerSession::ReceiveRequest(std::shared_ptr<Service::HLERequestContext
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size_t client_buffer_size = request->GetSize();
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size_t client_buffer_size = request->GetSize();
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// bool recv_list_broken = false;
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// bool recv_list_broken = false;
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if (!client_message) {
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client_message = GetInteger(client_thread->GetTlsAddress());
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client_buffer_size = MessageBufferSize;
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}
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// Receive the message.
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// Receive the message.
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Core::Memory::Memory& memory{client_thread->GetOwnerProcess()->GetMemory()};
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Core::Memory::Memory& memory{client_thread->GetOwnerProcess()->GetMemory()};
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if (out_context != nullptr) {
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if (out_context != nullptr) {
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@ -46,6 +46,10 @@ public:
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return this->GetState() != State::Normal;
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return this->GetState() != State::Normal;
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}
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}
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Result OnRequest(KSessionRequest* request) {
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R_RETURN(m_server.OnRequest(request));
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}
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KClientSession& GetClientSession() {
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KClientSession& GetClientSession() {
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return m_client;
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return m_client;
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}
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}
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@ -7,71 +7,39 @@
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#include "core/hle/kernel/k_client_session.h"
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#include "core/hle/kernel/k_client_session.h"
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#include "core/hle/kernel/k_hardware_timer.h"
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#include "core/hle/kernel/k_hardware_timer.h"
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#include "core/hle/kernel/k_process.h"
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#include "core/hle/kernel/k_process.h"
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#include "core/hle/kernel/k_scoped_resource_reservation.h"
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#include "core/hle/kernel/k_server_session.h"
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#include "core/hle/kernel/k_server_session.h"
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#include "core/hle/kernel/k_session.h"
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#include "core/hle/kernel/svc.h"
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#include "core/hle/kernel/svc.h"
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#include "core/hle/kernel/svc_results.h"
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#include "core/hle/kernel/svc_results.h"
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namespace Kernel::Svc {
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namespace Kernel::Svc {
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/// Makes a blocking IPC call to a service.
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namespace {
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Result SendSyncRequest(Core::System& system, Handle handle) {
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// Get the client session from its handle.
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Result SendSyncRequestImpl(KernelCore& kernel, uintptr_t message, size_t buffer_size,
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Handle session_handle) {
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// Get the client session.
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KScopedAutoObject session =
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KScopedAutoObject session =
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GetCurrentProcess(system.Kernel()).GetHandleTable().GetObject<KClientSession>(handle);
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GetCurrentProcess(kernel).GetHandleTable().GetObject<KClientSession>(session_handle);
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R_UNLESS(session.IsNotNull(), ResultInvalidHandle);
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R_UNLESS(session.IsNotNull(), ResultInvalidHandle);
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LOG_TRACE(Kernel_SVC, "called handle=0x{:08X}", handle);
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// Get the parent, and persist a reference to it until we're done.
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KScopedAutoObject parent = session->GetParent();
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ASSERT(parent.IsNotNull());
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R_RETURN(session->SendSyncRequest());
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// Send the request.
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R_RETURN(session->SendSyncRequest(message, buffer_size));
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}
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}
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Result SendSyncRequestWithUserBuffer(Core::System& system, uint64_t message_buffer,
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Result ReplyAndReceiveImpl(KernelCore& kernel, int32_t* out_index, uintptr_t message,
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uint64_t message_buffer_size, Handle session_handle) {
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size_t buffer_size, KPhysicalAddress message_paddr,
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UNIMPLEMENTED();
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KSynchronizationObject** objs, int32_t num_objects, Handle reply_target,
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R_THROW(ResultNotImplemented);
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int64_t timeout_ns) {
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}
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Result SendAsyncRequestWithUserBuffer(Core::System& system, Handle* out_event_handle,
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uint64_t message_buffer, uint64_t message_buffer_size,
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Handle session_handle) {
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UNIMPLEMENTED();
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R_THROW(ResultNotImplemented);
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}
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Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles_addr, s32 num_handles,
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Handle reply_target, s64 timeout_ns) {
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// Ensure number of handles is valid.
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R_UNLESS(0 <= num_handles && num_handles <= ArgumentHandleCountMax, ResultOutOfRange);
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// Get the synchronization context.
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auto& kernel = system.Kernel();
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auto& handle_table = GetCurrentProcess(kernel).GetHandleTable();
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auto objs = GetCurrentThread(kernel).GetSynchronizationObjectBuffer();
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auto handles = GetCurrentThread(kernel).GetHandleBuffer();
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// Copy user handles.
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if (num_handles > 0) {
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// Get the handles.
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R_UNLESS(GetCurrentMemory(kernel).ReadBlock(handles_addr, handles.data(),
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sizeof(Handle) * num_handles),
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ResultInvalidPointer);
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// Convert the handles to objects.
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R_UNLESS(handle_table.GetMultipleObjects<KSynchronizationObject>(
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objs.data(), handles.data(), num_handles),
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ResultInvalidHandle);
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}
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// Ensure handles are closed when we're done.
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SCOPE_EXIT({
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for (auto i = 0; i < num_handles; ++i) {
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objs[i]->Close();
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}
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});
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// Reply to the target, if one is specified.
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// Reply to the target, if one is specified.
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if (reply_target != InvalidHandle) {
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if (reply_target != InvalidHandle) {
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KScopedAutoObject session = handle_table.GetObject<KServerSession>(reply_target);
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KScopedAutoObject session =
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GetCurrentProcess(kernel).GetHandleTable().GetObject<KServerSession>(reply_target);
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R_UNLESS(session.IsNotNull(), ResultInvalidHandle);
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R_UNLESS(session.IsNotNull(), ResultInvalidHandle);
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// If we fail to reply, we want to set the output index to -1.
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// If we fail to reply, we want to set the output index to -1.
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@ -81,8 +49,11 @@ Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles_ad
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// Send the reply.
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// Send the reply.
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R_TRY(session->SendReply());
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R_TRY(session->SendReply());
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// R_TRY(session->SendReply(message, buffer_size, message_paddr));
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}
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}
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// Receive a message.
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{
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// Convert the timeout from nanoseconds to ticks.
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// Convert the timeout from nanoseconds to ticks.
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// NOTE: Nintendo does not use this conversion logic in WaitSynchronization...
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// NOTE: Nintendo does not use this conversion logic in WaitSynchronization...
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s64 timeout;
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s64 timeout;
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@ -104,18 +75,19 @@ Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles_ad
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while (true) {
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while (true) {
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// Wait for an object.
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// Wait for an object.
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s32 index;
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s32 index;
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Result result = KSynchronizationObject::Wait(kernel, std::addressof(index), objs.data(),
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Result result = KSynchronizationObject::Wait(kernel, std::addressof(index), objs,
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num_handles, timeout);
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num_objects, timeout);
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if (result == ResultTimedOut) {
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if (ResultTimedOut == result) {
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R_RETURN(result);
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R_THROW(result);
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}
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}
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// Receive the request.
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// Receive the request.
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if (R_SUCCEEDED(result)) {
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if (R_SUCCEEDED(result)) {
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KServerSession* session = objs[index]->DynamicCast<KServerSession*>();
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KServerSession* session = objs[index]->DynamicCast<KServerSession*>();
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if (session != nullptr) {
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if (session != nullptr) {
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// result = session->ReceiveRequest(message, buffer_size, message_paddr);
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result = session->ReceiveRequest();
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result = session->ReceiveRequest();
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if (result == ResultNotFound) {
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if (ResultNotFound == result) {
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continue;
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continue;
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}
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}
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}
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}
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@ -125,13 +97,175 @@ Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles_ad
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R_RETURN(result);
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R_RETURN(result);
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}
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}
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}
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}
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}
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Result ReplyAndReceiveWithUserBuffer(Core::System& system, int32_t* out_index,
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Result ReplyAndReceiveImpl(KernelCore& kernel, int32_t* out_index, uintptr_t message,
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uint64_t message_buffer, uint64_t message_buffer_size,
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size_t buffer_size, KPhysicalAddress message_paddr,
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uint64_t handles, int32_t num_handles, Handle reply_target,
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KProcessAddress user_handles, int32_t num_handles, Handle reply_target,
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int64_t timeout_ns) {
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int64_t timeout_ns) {
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UNIMPLEMENTED();
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// Ensure number of handles is valid.
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R_THROW(ResultNotImplemented);
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R_UNLESS(0 <= num_handles && num_handles <= Svc::ArgumentHandleCountMax, ResultOutOfRange);
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// Get the synchronization context.
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auto& process = GetCurrentProcess(kernel);
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auto& thread = GetCurrentThread(kernel);
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auto& handle_table = process.GetHandleTable();
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KSynchronizationObject** objs = thread.GetSynchronizationObjectBuffer().data();
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Handle* handles = thread.GetHandleBuffer().data();
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// Copy user handles.
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if (num_handles > 0) {
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// Ensure that we can try to get the handles.
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R_UNLESS(process.GetPageTable().Contains(user_handles, num_handles * sizeof(Handle)),
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ResultInvalidPointer);
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// Get the handles
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R_UNLESS(
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GetCurrentMemory(kernel).ReadBlock(user_handles, handles, sizeof(Handle) * num_handles),
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ResultInvalidPointer);
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// Convert the handles to objects.
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R_UNLESS(
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handle_table.GetMultipleObjects<KSynchronizationObject>(objs, handles, num_handles),
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ResultInvalidHandle);
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}
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// Ensure handles are closed when we're done.
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SCOPE_EXIT({
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for (auto i = 0; i < num_handles; ++i) {
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objs[i]->Close();
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}
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});
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R_RETURN(ReplyAndReceiveImpl(kernel, out_index, message, buffer_size, message_paddr, objs,
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num_handles, reply_target, timeout_ns));
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}
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} // namespace
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/// Makes a blocking IPC call to a service.
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Result SendSyncRequest(Core::System& system, Handle session_handle) {
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R_RETURN(SendSyncRequestImpl(system.Kernel(), 0, 0, session_handle));
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}
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Result SendSyncRequestWithUserBuffer(Core::System& system, uint64_t message, uint64_t buffer_size,
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Handle session_handle) {
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auto& kernel = system.Kernel();
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// Validate that the message buffer is page aligned and does not overflow.
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R_UNLESS(Common::IsAligned(message, PageSize), ResultInvalidAddress);
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R_UNLESS(buffer_size > 0, ResultInvalidSize);
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R_UNLESS(Common::IsAligned(buffer_size, PageSize), ResultInvalidSize);
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R_UNLESS(message < message + buffer_size, ResultInvalidCurrentMemory);
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// Get the process page table.
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auto& page_table = GetCurrentProcess(kernel).GetPageTable();
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// Lock the message buffer.
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R_TRY(page_table.LockForIpcUserBuffer(nullptr, message, buffer_size));
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{
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// If we fail to send the message, unlock the message buffer.
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ON_RESULT_FAILURE {
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page_table.UnlockForIpcUserBuffer(message, buffer_size);
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};
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// Send the request.
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ASSERT(message != 0);
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R_TRY(SendSyncRequestImpl(kernel, message, buffer_size, session_handle));
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}
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// We successfully processed, so try to unlock the message buffer.
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R_RETURN(page_table.UnlockForIpcUserBuffer(message, buffer_size));
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}
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Result SendAsyncRequestWithUserBuffer(Core::System& system, Handle* out_event_handle,
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uint64_t message, uint64_t buffer_size,
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Handle session_handle) {
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// Get the process and handle table.
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auto& process = GetCurrentProcess(system.Kernel());
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auto& handle_table = process.GetHandleTable();
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// Reserve a new event from the process resource limit.
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KScopedResourceReservation event_reservation(std::addressof(process),
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Svc::LimitableResource::EventCountMax);
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R_UNLESS(event_reservation.Succeeded(), ResultLimitReached);
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// Get the client session.
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KScopedAutoObject session = process.GetHandleTable().GetObject<KClientSession>(session_handle);
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R_UNLESS(session.IsNotNull(), ResultInvalidHandle);
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// Get the parent, and persist a reference to it until we're done.
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KScopedAutoObject parent = session->GetParent();
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ASSERT(parent.IsNotNull());
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// Create a new event.
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||||||
|
KEvent* event = KEvent::Create(system.Kernel());
|
||||||
|
R_UNLESS(event != nullptr, ResultOutOfResource);
|
||||||
|
|
||||||
|
// Initialize the event.
|
||||||
|
event->Initialize(std::addressof(process));
|
||||||
|
|
||||||
|
// Commit our reservation.
|
||||||
|
event_reservation.Commit();
|
||||||
|
|
||||||
|
// At end of scope, kill the standing references to the sub events.
|
||||||
|
SCOPE_EXIT({
|
||||||
|
event->GetReadableEvent().Close();
|
||||||
|
event->Close();
|
||||||
|
});
|
||||||
|
|
||||||
|
// Register the event.
|
||||||
|
KEvent::Register(system.Kernel(), event);
|
||||||
|
|
||||||
|
// Add the readable event to the handle table.
|
||||||
|
R_TRY(handle_table.Add(out_event_handle, std::addressof(event->GetReadableEvent())));
|
||||||
|
|
||||||
|
// Ensure that if we fail to send the request, we close the readable handle.
|
||||||
|
ON_RESULT_FAILURE {
|
||||||
|
handle_table.Remove(*out_event_handle);
|
||||||
|
};
|
||||||
|
|
||||||
|
// Send the async request.
|
||||||
|
R_RETURN(session->SendAsyncRequest(event, message, buffer_size));
|
||||||
|
}
|
||||||
|
|
||||||
|
Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles, s32 num_handles,
|
||||||
|
Handle reply_target, s64 timeout_ns) {
|
||||||
|
R_RETURN(ReplyAndReceiveImpl(system.Kernel(), out_index, 0, 0, 0, handles, num_handles,
|
||||||
|
reply_target, timeout_ns));
|
||||||
|
}
|
||||||
|
|
||||||
|
Result ReplyAndReceiveWithUserBuffer(Core::System& system, int32_t* out_index, uint64_t message,
|
||||||
|
uint64_t buffer_size, uint64_t handles, int32_t num_handles,
|
||||||
|
Handle reply_target, int64_t timeout_ns) {
|
||||||
|
// Validate that the message buffer is page aligned and does not overflow.
|
||||||
|
R_UNLESS(Common::IsAligned(message, PageSize), ResultInvalidAddress);
|
||||||
|
R_UNLESS(buffer_size > 0, ResultInvalidSize);
|
||||||
|
R_UNLESS(Common::IsAligned(buffer_size, PageSize), ResultInvalidSize);
|
||||||
|
R_UNLESS(message < message + buffer_size, ResultInvalidCurrentMemory);
|
||||||
|
|
||||||
|
// Get the process page table.
|
||||||
|
auto& page_table = GetCurrentProcess(system.Kernel()).GetPageTable();
|
||||||
|
|
||||||
|
// Lock the message buffer, getting its physical address.
|
||||||
|
KPhysicalAddress message_paddr;
|
||||||
|
R_TRY(page_table.LockForIpcUserBuffer(std::addressof(message_paddr), message, buffer_size));
|
||||||
|
|
||||||
|
{
|
||||||
|
// If we fail to send the message, unlock the message buffer.
|
||||||
|
ON_RESULT_FAILURE {
|
||||||
|
page_table.UnlockForIpcUserBuffer(message, buffer_size);
|
||||||
|
};
|
||||||
|
|
||||||
|
// Reply/Receive the request.
|
||||||
|
ASSERT(message != 0);
|
||||||
|
R_TRY(ReplyAndReceiveImpl(system.Kernel(), out_index, message, buffer_size, message_paddr,
|
||||||
|
handles, num_handles, reply_target, timeout_ns));
|
||||||
|
}
|
||||||
|
|
||||||
|
// We successfully processed, so try to unlock the message buffer.
|
||||||
|
R_RETURN(page_table.UnlockForIpcUserBuffer(message, buffer_size));
|
||||||
}
|
}
|
||||||
|
|
||||||
Result SendSyncRequest64(Core::System& system, Handle session_handle) {
|
Result SendSyncRequest64(Core::System& system, Handle session_handle) {
|
||||||
|
|
|
@ -192,8 +192,6 @@ Result SM::GetServiceImpl(Kernel::KClientSession** out_client_session, HLEReques
|
||||||
return result;
|
return result;
|
||||||
}
|
}
|
||||||
|
|
||||||
LOG_DEBUG(Service_SM, "called service={} -> session={}", name, session->GetId());
|
|
||||||
|
|
||||||
*out_client_session = session;
|
*out_client_session = session;
|
||||||
return ResultSuccess;
|
return ResultSuccess;
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in a new issue