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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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14
src/core/hle/kernel/server_session.h
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@ -15,13 +15,14 @@
namespace Kernel {
class ClientSession;
class ClientPort;
class ClientSession;
class HLERequestContext;
class KernelCore;
class ServerSession;
class Session;
class SessionRequestHandler;
class Thread;
class HLERequestContext;
/**
* Kernel object representing the server endpoint of an IPC session. Sessions are the basic CTR-OS
@ -50,11 +51,12 @@ public:
/**
* Creates a pair of ServerSession and an associated ClientSession.
* @param kernel The kernal instance to create the session pair under.
* @param name Optional name of the ports.
* @param client_port Optional The ClientPort that spawned this session.
* @return The created session tuple
*/
static SessionPair CreateSessionPair(const std::string& name = "Unknown",
static SessionPair CreateSessionPair(KernelCore& kernel, const std::string& name = "Unknown",
SharedPtr<ClientPort> client_port = nullptr);
/**
@ -111,16 +113,18 @@ public:
}
private:
ServerSession();
explicit ServerSession(KernelCore& kernel);
~ServerSession() override;
/**
* Creates a server session. The server session can have an optional HLE handler,
* which will be invoked to handle the IPC requests that this session receives.
* @param kernel The kernel instance to create this server session under.
* @param name Optional name of the server session.
* @return The created server session
*/
static ResultVal<SharedPtr<ServerSession>> Create(std::string name = "Unknown");
static ResultVal<SharedPtr<ServerSession>> Create(KernelCore& kernel,
std::string name = "Unknown");
/// Handles a SyncRequest to a domain, forwarding the request to the proper object or closing an
/// object handle.