mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-27 20:56:02 +00:00
249 lines
14 KiB
C++
249 lines
14 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 <mesosphere/kern_common.hpp>
|
|
#include <mesosphere/kern_k_auto_object.hpp>
|
|
#include <mesosphere/kern_slab_helpers.hpp>
|
|
#include <mesosphere/kern_k_event.hpp>
|
|
#include <mesosphere/kern_k_thread.hpp>
|
|
#include <mesosphere/kern_k_process.hpp>
|
|
#include <mesosphere/kern_k_memory_block.hpp>
|
|
|
|
namespace ams::kern {
|
|
|
|
class KSessionRequest final : public KSlabAllocated<KSessionRequest, true>, public KAutoObject, public util::IntrusiveListBaseNode<KSessionRequest> {
|
|
MESOSPHERE_AUTOOBJECT_TRAITS(KSessionRequest, KAutoObject);
|
|
public:
|
|
class SessionMappings {
|
|
private:
|
|
/* At most 15 buffers of each type (4-bit descriptor counts), for 45 total. */
|
|
static constexpr size_t NumMappings = ((1ul << 4) - 1) * 3;
|
|
static constexpr size_t NumStaticMappings = 8;
|
|
static constexpr size_t NumDynamicMappings = NumMappings - NumStaticMappings;
|
|
|
|
class Mapping {
|
|
private:
|
|
uintptr_t m_client_address;
|
|
uintptr_t m_server_address;
|
|
size_t m_size;
|
|
KMemoryState m_state;
|
|
public:
|
|
constexpr void Set(KProcessAddress c, KProcessAddress s, size_t sz, KMemoryState st) {
|
|
m_client_address = GetInteger(c);
|
|
m_server_address = GetInteger(s);
|
|
m_size = sz;
|
|
m_state = st;
|
|
}
|
|
|
|
constexpr ALWAYS_INLINE KProcessAddress GetClientAddress() const { return m_client_address; }
|
|
constexpr ALWAYS_INLINE KProcessAddress GetServerAddress() const { return m_server_address; }
|
|
constexpr ALWAYS_INLINE size_t GetSize() const { return m_size; }
|
|
constexpr ALWAYS_INLINE KMemoryState GetMemoryState() const { return m_state; }
|
|
};
|
|
public:
|
|
class DynamicMappings : public KSlabAllocated<DynamicMappings, true> {
|
|
private:
|
|
Mapping m_mappings[NumDynamicMappings];
|
|
public:
|
|
constexpr explicit DynamicMappings() : m_mappings() { /* ... */ }
|
|
|
|
constexpr ALWAYS_INLINE Mapping &Get(size_t idx) { return m_mappings[idx]; }
|
|
constexpr ALWAYS_INLINE const Mapping &Get(size_t idx) const { return m_mappings[idx]; }
|
|
};
|
|
static_assert(sizeof(DynamicMappings) == sizeof(Mapping) * NumDynamicMappings);
|
|
private:
|
|
Mapping m_static_mappings[NumStaticMappings];
|
|
DynamicMappings *m_dynamic_mappings;
|
|
u8 m_num_send;
|
|
u8 m_num_recv;
|
|
u8 m_num_exch;
|
|
public:
|
|
constexpr explicit SessionMappings(util::ConstantInitializeTag) : m_static_mappings(), m_dynamic_mappings(), m_num_send(), m_num_recv(), m_num_exch() { /* ... */ }
|
|
|
|
explicit SessionMappings() : m_dynamic_mappings(nullptr), m_num_send(), m_num_recv(), m_num_exch() { /* ... */ }
|
|
|
|
void Initialize() { /* ... */ }
|
|
void Finalize();
|
|
|
|
constexpr ALWAYS_INLINE size_t GetSendCount() const { return m_num_send; }
|
|
constexpr ALWAYS_INLINE size_t GetReceiveCount() const { return m_num_recv; }
|
|
constexpr ALWAYS_INLINE size_t GetExchangeCount() const { return m_num_exch; }
|
|
|
|
Result PushSend(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state);
|
|
Result PushReceive(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state);
|
|
Result PushExchange(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state);
|
|
|
|
constexpr ALWAYS_INLINE KProcessAddress GetSendClientAddress(size_t i) const { return GetSendMapping(i).GetClientAddress(); }
|
|
constexpr ALWAYS_INLINE KProcessAddress GetSendServerAddress(size_t i) const { return GetSendMapping(i).GetServerAddress(); }
|
|
constexpr ALWAYS_INLINE size_t GetSendSize(size_t i) const { return GetSendMapping(i).GetSize(); }
|
|
constexpr ALWAYS_INLINE KMemoryState GetSendMemoryState(size_t i) const { return GetSendMapping(i).GetMemoryState(); }
|
|
|
|
constexpr ALWAYS_INLINE KProcessAddress GetReceiveClientAddress(size_t i) const { return GetReceiveMapping(i).GetClientAddress(); }
|
|
constexpr ALWAYS_INLINE KProcessAddress GetReceiveServerAddress(size_t i) const { return GetReceiveMapping(i).GetServerAddress(); }
|
|
constexpr ALWAYS_INLINE size_t GetReceiveSize(size_t i) const { return GetReceiveMapping(i).GetSize(); }
|
|
constexpr ALWAYS_INLINE KMemoryState GetReceiveMemoryState(size_t i) const { return GetReceiveMapping(i).GetMemoryState(); }
|
|
|
|
constexpr ALWAYS_INLINE KProcessAddress GetExchangeClientAddress(size_t i) const { return GetExchangeMapping(i).GetClientAddress(); }
|
|
constexpr ALWAYS_INLINE KProcessAddress GetExchangeServerAddress(size_t i) const { return GetExchangeMapping(i).GetServerAddress(); }
|
|
constexpr ALWAYS_INLINE size_t GetExchangeSize(size_t i) const { return GetExchangeMapping(i).GetSize(); }
|
|
constexpr ALWAYS_INLINE KMemoryState GetExchangeMemoryState(size_t i) const { return GetExchangeMapping(i).GetMemoryState(); }
|
|
private:
|
|
Result PushMap(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state, size_t index);
|
|
|
|
constexpr ALWAYS_INLINE const Mapping &GetSendMapping(size_t i) const {
|
|
MESOSPHERE_ASSERT(i < m_num_send);
|
|
|
|
const size_t index = i;
|
|
if (index < NumStaticMappings) {
|
|
return m_static_mappings[index];
|
|
} else {
|
|
return m_dynamic_mappings->Get(index - NumStaticMappings);
|
|
}
|
|
}
|
|
|
|
constexpr ALWAYS_INLINE const Mapping &GetReceiveMapping(size_t i) const {
|
|
MESOSPHERE_ASSERT(i < m_num_recv);
|
|
|
|
const size_t index = m_num_send + i;
|
|
if (index < NumStaticMappings) {
|
|
return m_static_mappings[index];
|
|
} else {
|
|
return m_dynamic_mappings->Get(index - NumStaticMappings);
|
|
}
|
|
}
|
|
|
|
constexpr ALWAYS_INLINE const Mapping &GetExchangeMapping(size_t i) const {
|
|
MESOSPHERE_ASSERT(i < m_num_exch);
|
|
|
|
const size_t index = m_num_send + m_num_recv + i;
|
|
if (index < NumStaticMappings) {
|
|
return m_static_mappings[index];
|
|
} else {
|
|
return m_dynamic_mappings->Get(index - NumStaticMappings);
|
|
}
|
|
}
|
|
};
|
|
private:
|
|
SessionMappings m_mappings;
|
|
KThread *m_thread;
|
|
KProcess *m_server;
|
|
KEvent *m_event;
|
|
uintptr_t m_address;
|
|
size_t m_size;
|
|
public:
|
|
constexpr explicit KSessionRequest(util::ConstantInitializeTag) : KAutoObject(util::ConstantInitialize), m_mappings(util::ConstantInitialize), m_thread(), m_server(), m_event(), m_address(), m_size() { /* ... */ }
|
|
|
|
explicit KSessionRequest() : m_thread(nullptr), m_server(nullptr), m_event(nullptr) { /* ... */ }
|
|
|
|
static KSessionRequest *Create() {
|
|
KSessionRequest *req = KSessionRequest::Allocate();
|
|
if (AMS_LIKELY(req != nullptr)) {
|
|
KAutoObject::Create<KSessionRequest>(req);
|
|
}
|
|
return req;
|
|
}
|
|
|
|
static KSessionRequest *CreateFromUnusedSlabMemory() {
|
|
KSessionRequest *req = KSessionRequest::AllocateFromUnusedSlabMemory();
|
|
if (AMS_LIKELY(req != nullptr)) {
|
|
KAutoObject::Create<KSessionRequest>(req);
|
|
}
|
|
return req;
|
|
}
|
|
|
|
virtual void Destroy() override {
|
|
this->Finalize();
|
|
KSessionRequest::Free(this);
|
|
}
|
|
|
|
void Initialize(KEvent *event, uintptr_t address, size_t size) {
|
|
m_mappings.Initialize();
|
|
|
|
m_thread = std::addressof(GetCurrentThread());
|
|
m_event = event;
|
|
m_address = address;
|
|
m_size = size;
|
|
|
|
m_thread->Open();
|
|
if (m_event != nullptr) {
|
|
m_event->Open();
|
|
}
|
|
}
|
|
|
|
static void PostDestroy(uintptr_t arg) { MESOSPHERE_UNUSED(arg); /* ... */ }
|
|
|
|
constexpr ALWAYS_INLINE KThread *GetThread() const { return m_thread; }
|
|
constexpr ALWAYS_INLINE KEvent *GetEvent() const { return m_event; }
|
|
constexpr ALWAYS_INLINE uintptr_t GetAddress() const { return m_address; }
|
|
constexpr ALWAYS_INLINE size_t GetSize() const { return m_size; }
|
|
constexpr ALWAYS_INLINE KProcess *GetServerProcess() const { return m_server; }
|
|
|
|
void ALWAYS_INLINE SetServerProcess(KProcess *process) {
|
|
m_server = process;
|
|
m_server->Open();
|
|
}
|
|
|
|
constexpr ALWAYS_INLINE void ClearThread() { m_thread = nullptr; }
|
|
constexpr ALWAYS_INLINE void ClearEvent() { m_event = nullptr; }
|
|
|
|
constexpr ALWAYS_INLINE size_t GetSendCount() const { return m_mappings.GetSendCount(); }
|
|
constexpr ALWAYS_INLINE size_t GetReceiveCount() const { return m_mappings.GetReceiveCount(); }
|
|
constexpr ALWAYS_INLINE size_t GetExchangeCount() const { return m_mappings.GetExchangeCount(); }
|
|
|
|
ALWAYS_INLINE Result PushSend(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state) {
|
|
R_RETURN(m_mappings.PushSend(client, server, size, state));
|
|
}
|
|
|
|
ALWAYS_INLINE Result PushReceive(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state) {
|
|
R_RETURN(m_mappings.PushReceive(client, server, size, state));
|
|
}
|
|
|
|
ALWAYS_INLINE Result PushExchange(KProcessAddress client, KProcessAddress server, size_t size, KMemoryState state) {
|
|
R_RETURN(m_mappings.PushExchange(client, server, size, state));
|
|
}
|
|
|
|
constexpr ALWAYS_INLINE KProcessAddress GetSendClientAddress(size_t i) const { return m_mappings.GetSendClientAddress(i); }
|
|
constexpr ALWAYS_INLINE KProcessAddress GetSendServerAddress(size_t i) const { return m_mappings.GetSendServerAddress(i); }
|
|
constexpr ALWAYS_INLINE size_t GetSendSize(size_t i) const { return m_mappings.GetSendSize(i); }
|
|
constexpr ALWAYS_INLINE KMemoryState GetSendMemoryState(size_t i) const { return m_mappings.GetSendMemoryState(i); }
|
|
|
|
constexpr ALWAYS_INLINE KProcessAddress GetReceiveClientAddress(size_t i) const { return m_mappings.GetReceiveClientAddress(i); }
|
|
constexpr ALWAYS_INLINE KProcessAddress GetReceiveServerAddress(size_t i) const { return m_mappings.GetReceiveServerAddress(i); }
|
|
constexpr ALWAYS_INLINE size_t GetReceiveSize(size_t i) const { return m_mappings.GetReceiveSize(i); }
|
|
constexpr ALWAYS_INLINE KMemoryState GetReceiveMemoryState(size_t i) const { return m_mappings.GetReceiveMemoryState(i); }
|
|
|
|
constexpr ALWAYS_INLINE KProcessAddress GetExchangeClientAddress(size_t i) const { return m_mappings.GetExchangeClientAddress(i); }
|
|
constexpr ALWAYS_INLINE KProcessAddress GetExchangeServerAddress(size_t i) const { return m_mappings.GetExchangeServerAddress(i); }
|
|
constexpr ALWAYS_INLINE size_t GetExchangeSize(size_t i) const { return m_mappings.GetExchangeSize(i); }
|
|
constexpr ALWAYS_INLINE KMemoryState GetExchangeMemoryState(size_t i) const { return m_mappings.GetExchangeMemoryState(i); }
|
|
private:
|
|
/* NOTE: This is public and virtual in Nintendo's kernel. */
|
|
void Finalize() {
|
|
m_mappings.Finalize();
|
|
|
|
if (m_thread) {
|
|
m_thread->Close();
|
|
}
|
|
if (m_event) {
|
|
m_event->Close();
|
|
}
|
|
if (m_server) {
|
|
m_server->Close();
|
|
}
|
|
}
|
|
};
|
|
|
|
}
|