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118 lines
3.7 KiB
C++
118 lines
3.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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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*/
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#ifndef AGS_ENGINE_AC_DYNOBJ_CC_MANAGED_OBJECT_POOL_H
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#define AGS_ENGINE_AC_DYNOBJ_CC_MANAGED_OBJECT_POOL_H
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#include "ags/lib/std/vector.h"
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#include "ags/lib/std/queue.h"
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#include "ags/lib/std/map.h"
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#include "ags/shared/core/platform.h"
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#include "ags/engine/script/runtime_script_value.h"
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#include "ags/engine/ac/dynobj/cc_dynamic_object.h" // ICCDynamicObject
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namespace AGS3 {
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namespace AGS {
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namespace Shared {
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class Stream;
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} // namespace Shared
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} // namespace AGS
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using namespace AGS; // FIXME later
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struct Pointer_Hash {
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uint operator()(const char *v) const {
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return static_cast<uint>(reinterpret_cast<uintptr>(v));
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}
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};
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struct ManagedObjectPool final {
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private:
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// TODO: find out if we can make handle size_t
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struct ManagedObject {
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ScriptValueType obj_type;
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int32_t handle;
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// TODO: this makes no sense having this as "const char*",
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// void* will be proper (and in all related functions)
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const char *addr;
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ICCDynamicObject *callback;
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int refCount;
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bool isUsed() const {
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return obj_type != kScValUndefined;
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}
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ManagedObject() : obj_type(kScValUndefined), handle(0), addr(nullptr),
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callback(nullptr), refCount(0) {
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}
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ManagedObject(ScriptValueType theType, int32_t theHandle,
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const char *theAddr, ICCDynamicObject *theCallback)
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: obj_type(theType), handle(theHandle), addr(theAddr),
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callback(theCallback), refCount(0) {
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}
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};
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int objectCreationCounter; // used to do garbage collection every so often
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int32_t nextHandle{}; // TODO: manage nextHandle's going over INT32_MAX !
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std::queue<int32_t> available_ids;
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std::vector<ManagedObject> objects;
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std::unordered_map<const char *, int32_t, Pointer_Hash> handleByAddress;
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void Init(int32_t theHandle, const char *theAddress, ICCDynamicObject *theCallback, ScriptValueType objType);
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int Remove(ManagedObject &o, bool force = false);
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void RunGarbageCollection();
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public:
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int32_t AddRef(int32_t handle);
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int CheckDispose(int32_t handle);
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int32_t SubRef(int32_t handle);
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int32_t AddressToHandle(const char *addr);
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const char *HandleToAddress(int32_t handle);
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ScriptValueType HandleToAddressAndManager(int32_t handle, void *&object, ICCDynamicObject *&manager);
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int RemoveObject(const char *address);
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void RunGarbageCollectionIfAppropriate();
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int AddObject(const char *address, ICCDynamicObject *callback, bool plugin_object);
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int AddUnserializedObject(const char *address, ICCDynamicObject *callback, bool plugin_object, int handle);
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void WriteToDisk(Shared::Stream *out);
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int ReadFromDisk(Shared::Stream *in, ICCObjectReader *reader);
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void reset();
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ManagedObjectPool();
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const char *disableDisposeForObject{ nullptr };
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};
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// Extreme(!!) verbosity managed memory pool log
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#if DEBUG_MANAGED_OBJECTS
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#define ManagedObjectLog(...) Debug::Printf(kDbgGroup_ManObj, kDbgMsg_Debug, __VA_ARGS__)
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#else
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#define ManagedObjectLog(...)
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#endif
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} // namespace AGS3
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#endif
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