mirror of
https://github.com/Atmosphere-NX/Atmosphere
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225 lines
12 KiB
C++
225 lines
12 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <mesosphere/kern_common.hpp>
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#include <mesosphere/kern_k_auto_object.hpp>
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#include <mesosphere/kern_slab_helpers.hpp>
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#include <mesosphere/kern_k_writable_event.hpp>
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#include <mesosphere/kern_k_thread.hpp>
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#include <mesosphere/kern_k_process.hpp>
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#include <mesosphere/kern_k_memory_block.hpp>
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namespace ams::kern {
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class KSessionRequest final : public KSlabAllocated<KSessionRequest>, public KAutoObject, public util::IntrusiveListBaseNode<KSessionRequest> {
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MESOSPHERE_AUTOOBJECT_TRAITS(KSessionRequest, KAutoObject);
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public:
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class SessionMappings {
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private:
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static constexpr size_t NumStaticMappings = 8;
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class Mapping {
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private:
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KProcessAddress client_address;
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KProcessAddress server_address;
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size_t size;
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KMemoryState state;
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public:
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constexpr void Set(KProcessAddress c, KProcessAddress s, size_t sz, KMemoryState st) {
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this->client_address = c;
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this->server_address = s;
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this->size = sz;
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this->state = st;
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}
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constexpr ALWAYS_INLINE KProcessAddress GetClientAddress() const { return this->client_address; }
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constexpr ALWAYS_INLINE KProcessAddress GetServerAddress() const { return this->server_address; }
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constexpr ALWAYS_INLINE size_t GetSize() const { return this->size; }
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constexpr ALWAYS_INLINE KMemoryState GetMemoryState() const { return this->state; }
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};
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private:
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Mapping static_mappings[NumStaticMappings];
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Mapping *mappings;
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u8 num_send;
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u8 num_recv;
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u8 num_exch;
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public:
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constexpr explicit SessionMappings() : static_mappings(), mappings(), num_send(), num_recv(), num_exch() { /* ... */ }
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void Initialize() { /* ... */ }
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void Finalize();
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constexpr ALWAYS_INLINE size_t GetSendCount() const { return this->num_send; }
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constexpr ALWAYS_INLINE size_t GetReceiveCount() const { return this->num_recv; }
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constexpr ALWAYS_INLINE size_t GetExchangeCount() const { return this->num_exch; }
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Result PushSend(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state);
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Result PushReceive(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state);
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Result PushExchange(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state);
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constexpr ALWAYS_INLINE KProcessAddress GetSendClientAddress(size_t i) const { return GetSendMapping(i).GetClientAddress(); }
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constexpr ALWAYS_INLINE KProcessAddress GetSendServerAddress(size_t i) const { return GetSendMapping(i).GetServerAddress(); }
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constexpr ALWAYS_INLINE size_t GetSendSize(size_t i) const { return GetSendMapping(i).GetSize(); }
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constexpr ALWAYS_INLINE KMemoryState GetSendMemoryState(size_t i) const { return GetSendMapping(i).GetMemoryState(); }
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constexpr ALWAYS_INLINE KProcessAddress GetReceiveClientAddress(size_t i) const { return GetReceiveMapping(i).GetClientAddress(); }
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constexpr ALWAYS_INLINE KProcessAddress GetReceiveServerAddress(size_t i) const { return GetReceiveMapping(i).GetServerAddress(); }
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constexpr ALWAYS_INLINE size_t GetReceiveSize(size_t i) const { return GetReceiveMapping(i).GetSize(); }
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constexpr ALWAYS_INLINE KMemoryState GetReceiveMemoryState(size_t i) const { return GetReceiveMapping(i).GetMemoryState(); }
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constexpr ALWAYS_INLINE KProcessAddress GetExchangeClientAddress(size_t i) const { return GetExchangeMapping(i).GetClientAddress(); }
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constexpr ALWAYS_INLINE KProcessAddress GetExchangeServerAddress(size_t i) const { return GetExchangeMapping(i).GetServerAddress(); }
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constexpr ALWAYS_INLINE size_t GetExchangeSize(size_t i) const { return GetExchangeMapping(i).GetSize(); }
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constexpr ALWAYS_INLINE KMemoryState GetExchangeMemoryState(size_t i) const { return GetExchangeMapping(i).GetMemoryState(); }
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private:
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Result PushMap(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state, size_t index);
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constexpr ALWAYS_INLINE const Mapping &GetSendMapping(size_t i) const {
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MESOSPHERE_ASSERT(i < this->num_send);
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const size_t index = i;
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if (index < NumStaticMappings) {
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return this->static_mappings[index];
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} else {
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return this->mappings[index - NumStaticMappings];
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}
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}
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constexpr ALWAYS_INLINE const Mapping &GetReceiveMapping(size_t i) const {
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MESOSPHERE_ASSERT(i < this->num_recv);
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const size_t index = this->num_send + i;
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if (index < NumStaticMappings) {
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return this->static_mappings[index];
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} else {
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return this->mappings[index - NumStaticMappings];
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}
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}
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constexpr ALWAYS_INLINE const Mapping &GetExchangeMapping(size_t i) const {
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MESOSPHERE_ASSERT(i < this->num_exch);
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const size_t index = this->num_send + this->num_recv + i;
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if (index < NumStaticMappings) {
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return this->static_mappings[index];
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} else {
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return this->mappings[index - NumStaticMappings];
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}
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}
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};
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private:
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SessionMappings mappings;
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KThread *thread;
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KProcess *server;
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KWritableEvent *event;
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uintptr_t address;
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size_t size;
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public:
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constexpr KSessionRequest() : mappings(), thread(), server(), event(), address(), size() { /* ... */ }
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virtual ~KSessionRequest() { /* ... */ }
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static KSessionRequest *Create() {
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KSessionRequest *req = KSessionRequest::Allocate();
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if (req != nullptr) {
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KAutoObject::Create(req);
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}
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return req;
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}
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virtual void Destroy() override {
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this->Finalize();
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KSessionRequest::Free(this);
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}
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void Initialize(KWritableEvent *event, uintptr_t address, size_t size) {
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this->mappings.Initialize();
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this->thread = std::addressof(GetCurrentThread());
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this->event = event;
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this->address = address;
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this->size = size;
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this->thread->Open();
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if (this->event != nullptr) {
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this->event->Open();
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}
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}
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virtual void Finalize() override {
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this->mappings.Finalize();
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if (this->thread) {
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this->thread->Close();
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}
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if (this->event) {
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this->event->Close();
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}
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if (this->server) {
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this->server->Close();
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}
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}
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static void PostDestroy(uintptr_t arg) { MESOSPHERE_UNUSED(arg); /* ... */ }
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constexpr ALWAYS_INLINE KThread *GetThread() const { return this->thread; }
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constexpr ALWAYS_INLINE KWritableEvent *GetEvent() const { return this->event; }
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constexpr ALWAYS_INLINE uintptr_t GetAddress() const { return this->address; }
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constexpr ALWAYS_INLINE size_t GetSize() const { return this->size; }
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constexpr ALWAYS_INLINE KProcess *GetServerProcess() const { return this->server; }
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void ALWAYS_INLINE SetServerProcess(KProcess *process) {
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this->server = process;
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this->server->Open();
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}
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constexpr ALWAYS_INLINE void ClearThread() { this->thread = nullptr; }
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constexpr ALWAYS_INLINE void ClearEvent() { this->event = nullptr; }
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constexpr ALWAYS_INLINE size_t GetSendCount() const { return this->mappings.GetSendCount(); }
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constexpr ALWAYS_INLINE size_t GetReceiveCount() const { return this->mappings.GetReceiveCount(); }
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constexpr ALWAYS_INLINE size_t GetExchangeCount() const { return this->mappings.GetExchangeCount(); }
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ALWAYS_INLINE Result PushSend(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state) {
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return this->mappings.PushSend(client, server, size, state);
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}
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ALWAYS_INLINE Result PushReceive(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state) {
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return this->mappings.PushReceive(client, server, size, state);
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}
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ALWAYS_INLINE Result PushExchange(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state) {
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return this->mappings.PushExchange(client, server, size, state);
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}
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constexpr ALWAYS_INLINE KProcessAddress GetSendClientAddress(size_t i) const { return this->mappings.GetSendClientAddress(i); }
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constexpr ALWAYS_INLINE KProcessAddress GetSendServerAddress(size_t i) const { return this->mappings.GetSendServerAddress(i); }
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constexpr ALWAYS_INLINE size_t GetSendSize(size_t i) const { return this->mappings.GetSendSize(i); }
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constexpr ALWAYS_INLINE KMemoryState GetSendMemoryState(size_t i) const { return this->mappings.GetSendMemoryState(i); }
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constexpr ALWAYS_INLINE KProcessAddress GetReceiveClientAddress(size_t i) const { return this->mappings.GetReceiveClientAddress(i); }
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constexpr ALWAYS_INLINE KProcessAddress GetReceiveServerAddress(size_t i) const { return this->mappings.GetReceiveServerAddress(i); }
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constexpr ALWAYS_INLINE size_t GetReceiveSize(size_t i) const { return this->mappings.GetReceiveSize(i); }
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constexpr ALWAYS_INLINE KMemoryState GetReceiveMemoryState(size_t i) const { return this->mappings.GetReceiveMemoryState(i); }
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constexpr ALWAYS_INLINE KProcessAddress GetExchangeClientAddress(size_t i) const { return this->mappings.GetExchangeClientAddress(i); }
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constexpr ALWAYS_INLINE KProcessAddress GetExchangeServerAddress(size_t i) const { return this->mappings.GetExchangeServerAddress(i); }
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constexpr ALWAYS_INLINE size_t GetExchangeSize(size_t i) const { return this->mappings.GetExchangeSize(i); }
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constexpr ALWAYS_INLINE KMemoryState GetExchangeMemoryState(size_t i) const { return this->mappings.GetExchangeMemoryState(i); }
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};
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}
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