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kernel: Eliminate kernel global state

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As means to pave the way for getting rid of global state within core,
This eliminates kernel global state by removing all globals. Instead
this introduces a KernelCore class which acts as a kernel instance. This
instance lives in the System class, which keeps its lifetime contained
to the lifetime of the System class.

This also forces the kernel types to actually interact with the main
kernel instance itself instead of having transient kernel state placed
all over several translation units, keeping everything together. It also
has a nice consequence of making dependencies much more explicit.

This also makes our initialization a tad bit more correct. Previously we
were creating a kernel process before the actual kernel was initialized,
which doesn't really make much sense.

The KernelCore class itself follows the PImpl idiom, which allows
keeping all the implementation details sealed away from everything else,
which forces the use of the exposed API and allows us to avoid any
unnecessary inclusions within the main kernel header.
This commit is contained in:
Lioncash
2018-08-28 12:30:33 -04:00
parent 4d7e1662c8
commit 0cbcd6ec9a
54 changed files with 673 additions and 444 deletions
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17
src/core/hle/kernel/server_session.cpp
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@ -20,7 +20,7 @@
namespace Kernel {
ServerSession::ServerSession() = default;
ServerSession::ServerSession(KernelCore& kernel) : WaitObject{kernel} {}
ServerSession::~ServerSession() {
// This destructor will be called automatically when the last ServerSession handle is closed by
// the emulated application.
@ -35,8 +35,8 @@ ServerSession::~ServerSession() {
parent->server = nullptr;
}
ResultVal<SharedPtr<ServerSession>> ServerSession::Create(std::string name) {
SharedPtr<ServerSession> server_session(new ServerSession);
ResultVal<SharedPtr<ServerSession>> ServerSession::Create(KernelCore& kernel, std::string name) {
SharedPtr<ServerSession> server_session(new ServerSession(kernel));
server_session->name = std::move(name);
server_session->parent = nullptr;
@ -105,10 +105,10 @@ ResultCode ServerSession::HandleSyncRequest(SharedPtr<Thread> thread) {
// from its ClientSession, so wake up any threads that may be waiting on a svcReplyAndReceive or
// similar.
auto& handle_table = Core::System::GetInstance().Kernel().HandleTable();
Kernel::HLERequestContext context(this);
u32* cmd_buf = (u32*)Memory::GetPointer(thread->GetTLSAddress());
context.PopulateFromIncomingCommandBuffer(cmd_buf, *Core::CurrentProcess(),
Kernel::g_handle_table);
context.PopulateFromIncomingCommandBuffer(cmd_buf, *Core::CurrentProcess(), handle_table);
ResultCode result = RESULT_SUCCESS;
// If the session has been converted to a domain, handle the domain request
@ -160,10 +160,11 @@ ResultCode ServerSession::HandleSyncRequest(SharedPtr<Thread> thread) {
return result;
}
ServerSession::SessionPair ServerSession::CreateSessionPair(const std::string& name,
ServerSession::SessionPair ServerSession::CreateSessionPair(KernelCore& kernel,
const std::string& name,
SharedPtr<ClientPort> port) {
auto server_session = ServerSession::Create(name + "_Server").Unwrap();
SharedPtr<ClientSession> client_session(new ClientSession);
auto server_session = ServerSession::Create(kernel, name + "_Server").Unwrap();
SharedPtr<ClientSession> client_session(new ClientSession(kernel));
client_session->name = name + "_Client";
std::shared_ptr<Session> parent(new Session);