e558e1ec09
When a Reference managed instance is garbage collected and its finalizer is called, it could happen that the native instance is referenced once again before the finalizer can unreference and memdelete it. The workaround is to create a new managed instance when this happens (at least for now).
77 lines
3.3 KiB
C++
77 lines
3.3 KiB
C++
/*************************************************************************/
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/* mono_gc_handle.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef CSHARP_GC_HANDLE_H
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#define CSHARP_GC_HANDLE_H
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#include <mono/jit/jit.h>
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#include "reference.h"
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class MonoGCHandle : public Reference {
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GDCLASS(MonoGCHandle, Reference)
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bool released;
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bool weak;
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uint32_t handle;
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public:
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enum HandleType {
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STRONG_HANDLE,
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WEAK_HANDLE
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};
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static uint32_t new_strong_handle(MonoObject *p_object);
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static uint32_t new_strong_handle_pinned(MonoObject *p_object);
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static uint32_t new_weak_handle(MonoObject *p_object);
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static void free_handle(uint32_t p_gchandle);
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static Ref<MonoGCHandle> create_strong(MonoObject *p_object);
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static Ref<MonoGCHandle> create_weak(MonoObject *p_object);
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_FORCE_INLINE_ bool is_released() { return released; }
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_FORCE_INLINE_ bool is_weak() { return weak; }
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_FORCE_INLINE_ MonoObject *get_target() const { return released ? NULL : mono_gchandle_get_target(handle); }
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_FORCE_INLINE_ void set_handle(uint32_t p_handle, HandleType p_handle_type) {
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released = false;
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weak = p_handle_type == WEAK_HANDLE;
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handle = p_handle;
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}
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void release();
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MonoGCHandle(uint32_t p_handle, HandleType p_handle_type);
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~MonoGCHandle();
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};
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#endif // CSHARP_GC_HANDLE_H
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