diff options
Diffstat (limited to 'modules/mono/managed_callable.cpp')
| -rw-r--r-- | modules/mono/managed_callable.cpp | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/modules/mono/managed_callable.cpp b/modules/mono/managed_callable.cpp new file mode 100644 index 0000000000..a9cf64d1cc --- /dev/null +++ b/modules/mono/managed_callable.cpp @@ -0,0 +1,145 @@ +/*************************************************************************/ +/* managed_callable.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#include "managed_callable.h" + +#include "csharp_script.h" +#include "mono_gd/gd_mono_marshal.h" +#include "mono_gd/gd_mono_utils.h" + +#ifdef GD_MONO_HOT_RELOAD +SelfList<ManagedCallable>::List ManagedCallable::instances; +Map<ManagedCallable *, Array> ManagedCallable::instances_pending_reload; +Mutex ManagedCallable::instances_mutex; +#endif + +bool ManagedCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) { + const ManagedCallable *a = static_cast<const ManagedCallable *>(p_a); + const ManagedCallable *b = static_cast<const ManagedCallable *>(p_b); + + MonoDelegate *delegate_a = (MonoDelegate *)a->delegate_handle.get_target(); + MonoDelegate *delegate_b = (MonoDelegate *)b->delegate_handle.get_target(); + + if (!delegate_a || !delegate_b) { + if (!delegate_a && !delegate_b) + return true; + return false; + } + + // Call Delegate's 'Equals' + return GDMonoUtils::mono_delegate_equal(delegate_a, delegate_b); +} + +bool ManagedCallable::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) { + if (compare_equal(p_a, p_b)) + return false; + return p_a < p_b; +} + +uint32_t ManagedCallable::hash() const { + // hmm + uint32_t hash = delegate_invoke->get_name().hash(); + return hash_djb2_one_64(delegate_handle.handle, hash); +} + +String ManagedCallable::get_as_text() const { + return "Delegate::Invoke"; +} + +CallableCustom::CompareEqualFunc ManagedCallable::get_compare_equal_func() const { + return compare_equal_func_ptr; +} + +CallableCustom::CompareLessFunc ManagedCallable::get_compare_less_func() const { + return compare_less_func_ptr; +} + +ObjectID ManagedCallable::get_object() const { + return CSharpLanguage::get_singleton()->get_managed_callable_middleman()->get_instance_id(); +} + +void ManagedCallable::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const { + r_call_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD; // Can't find anything better + r_return_value = Variant(); + +#ifdef GD_MONO_HOT_RELOAD + // Lost during hot-reload + ERR_FAIL_NULL(delegate_invoke); + ERR_FAIL_COND(delegate_handle.is_released()); +#endif + + ERR_FAIL_COND(delegate_invoke->get_parameters_count() < p_argcount); + + MonoObject *delegate = delegate_handle.get_target(); + + MonoException *exc = NULL; + MonoObject *ret = delegate_invoke->invoke(delegate, p_arguments, &exc); + + if (exc) { + GDMonoUtils::set_pending_exception(exc); + } else { + r_return_value = GDMonoMarshal::mono_object_to_variant(ret); + r_call_error.error = Callable::CallError::CALL_OK; + } +} + +void ManagedCallable::set_delegate(MonoDelegate *p_delegate) { + delegate_handle = MonoGCHandleData::new_strong_handle((MonoObject *)p_delegate); + MonoMethod *delegate_invoke_raw = mono_get_delegate_invoke(mono_object_get_class((MonoObject *)p_delegate)); + const StringName &delegate_invoke_name = CSharpLanguage::get_singleton()->get_string_names().delegate_invoke_method_name; + delegate_invoke = memnew(GDMonoMethod(delegate_invoke_name, delegate_invoke_raw)); // TODO: Use pooling for this GDMonoMethod instances +} + +ManagedCallable::ManagedCallable(MonoDelegate *p_delegate) { +#ifdef DEBUG_ENABLED + CRASH_COND(p_delegate == NULL); +#endif + + set_delegate(p_delegate); + +#ifdef GD_MONO_HOT_RELOAD + { + MutexLock lock(instances_mutex); + instances.add(&self_instance); + } +#endif +} + +ManagedCallable::~ManagedCallable() { +#ifdef GD_MONO_HOT_RELOAD + { + MutexLock lock(instances_mutex); + instances.remove(&self_instance); + instances_pending_reload.erase(this); + } +#endif + + delegate_handle.release(); +} |