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Kernel: Start using boost::intrusive_ptr for lifetime management

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This commit is contained in:
Yuri Kunde Schlesner 2014-12-29 10:55:30 -02:00
parent d751de7341
commit 8ad41775cc
13 changed files with 96 additions and 91 deletions
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21
src/core/hle/kernel/kernel.h
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@ -4,6 +4,8 @@
#pragma once
#include <boost/intrusive_ptr.hpp>
#include <array>
#include <string>
#include "common/common.h"
@ -76,7 +78,7 @@ private:
unsigned int ref_count = 0;
};
// Special functions that will later be used by boost::instrusive_ptr to do automatic ref-counting
// Special functions used by boost::instrusive_ptr to do automatic ref-counting
inline void intrusive_ptr_add_ref(Object* object) {
++object->ref_count;
}
@ -87,6 +89,9 @@ inline void intrusive_ptr_release(Object* object) {
}
}
template <typename T>
using SharedPtr = boost::intrusive_ptr<T>;
/**
* This class allows the creation of Handles, which are references to objects that can be tested
* for validity and looked up. Here they are used to pass references to kernel objects to/from the
@ -119,7 +124,7 @@ public:
* @return The created Handle or one of the following errors:
* - `ERR_OUT_OF_HANDLES`: the maximum number of handles has been exceeded.
*/
ResultVal<Handle> Create(Object* obj);
ResultVal<Handle> Create(SharedPtr<Object> obj);
/**
* Returns a new handle that points to the same object as the passed in handle.
@ -143,7 +148,7 @@ public:
* Looks up a handle.
* @returns Pointer to the looked-up object, or `nullptr` if the handle is not valid.
*/
Object* GetGeneric(Handle handle) const;
SharedPtr<Object> GetGeneric(Handle handle) const;
/**
* Looks up a handle while verifying its type.
@ -151,10 +156,10 @@ public:
* type differs from the handle type `T::HANDLE_TYPE`.
*/
template <class T>
T* Get(Handle handle) const {
Object* object = GetGeneric(handle);
SharedPtr<T> Get(Handle handle) const {
SharedPtr<Object> object = GetGeneric(handle);
if (object != nullptr && object->GetHandleType() == T::HANDLE_TYPE) {
return static_cast<T*>(object);
return boost::static_pointer_cast<T>(std::move(object));
}
return nullptr;
}
@ -173,7 +178,7 @@ private:
static u16 GetGeneration(Handle handle) { return handle & 0x7FFF; }
/// Stores the Object referenced by the handle or null if the slot is empty.
std::array<Object*, MAX_COUNT> objects;
std::array<SharedPtr<Object>, MAX_COUNT> objects;
/**
* The value of `next_generation` when the handle was created, used to check for validity. For
@ -192,7 +197,7 @@ private:
};
extern HandleTable g_handle_table;
extern Thread* g_main_thread;
extern SharedPtr<Thread> g_main_thread;
/// The ID code of the currently running game
/// TODO(Subv): This variable should not be here,