1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/*************************************************************************/
/* signal_awaiter_utils.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 "signal_awaiter_utils.h"
#include "csharp_script.h"
#include "mono_gd/gd_mono_cache.h"
#include "mono_gd/gd_mono_class.h"
#include "mono_gd/gd_mono_marshal.h"
#include "mono_gd/gd_mono_utils.h"
Error gd_mono_connect_signal_awaiter(Object *p_source, const StringName &p_signal, Object *p_target, MonoObject *p_awaiter) {
ERR_FAIL_NULL_V(p_source, ERR_INVALID_DATA);
ERR_FAIL_NULL_V(p_target, ERR_INVALID_DATA);
// TODO: Use pooling for ManagedCallable instances.
SignalAwaiterCallable *awaiter_callable = memnew(SignalAwaiterCallable(p_target, p_awaiter, p_signal));
Callable callable = Callable(awaiter_callable);
return p_source->connect(p_signal, callable, Vector<Variant>(), Object::CONNECT_ONESHOT);
}
bool SignalAwaiterCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) {
const SignalAwaiterCallable *a = static_cast<const SignalAwaiterCallable *>(p_a);
const SignalAwaiterCallable *b = static_cast<const SignalAwaiterCallable *>(p_b);
if (a->target_id != b->target_id) {
return false;
}
if (a->signal != b->signal) {
return false;
}
return true;
}
bool SignalAwaiterCallable::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 SignalAwaiterCallable::hash() const {
uint32_t hash = signal.hash();
return hash_djb2_one_64(target_id, hash);
}
String SignalAwaiterCallable::get_as_text() const {
Object *base = ObjectDB::get_instance(target_id);
if (base) {
String class_name = base->get_class();
Ref<Script> script = base->get_script();
if (script.is_valid() && script->get_path().is_resource_file()) {
class_name += "(" + script->get_path().get_file() + ")";
}
return class_name + "::SignalAwaiterMiddleman::" + String(signal);
} else {
return "null::SignalAwaiterMiddleman::" + String(signal);
}
}
CallableCustom::CompareEqualFunc SignalAwaiterCallable::get_compare_equal_func() const {
return compare_equal_func_ptr;
}
CallableCustom::CompareLessFunc SignalAwaiterCallable::get_compare_less_func() const {
return compare_less_func_ptr;
}
ObjectID SignalAwaiterCallable::get_object() const {
return target_id;
}
void SignalAwaiterCallable::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 DEBUG_ENABLED
ERR_FAIL_COND_MSG(target_id.is_valid() && !ObjectDB::get_instance(target_id),
"Resumed after await, but class instance is gone.");
#endif
MonoArray *signal_args = mono_array_new(mono_domain_get(), CACHED_CLASS_RAW(MonoObject), p_argcount);
for (int i = 0; i < p_argcount; i++) {
MonoObject *boxed = GDMonoMarshal::variant_to_mono_object(*p_arguments[i]);
mono_array_setref(signal_args, i, boxed);
}
MonoObject *awaiter = awaiter_handle.get_target();
if (!awaiter) {
r_call_error.error = Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL;
return;
}
MonoException *exc = nullptr;
CACHED_METHOD_THUNK(SignalAwaiter, SignalCallback).invoke(awaiter, signal_args, &exc);
if (exc) {
GDMonoUtils::set_pending_exception(exc);
ERR_FAIL();
} else {
r_call_error.error = Callable::CallError::CALL_OK;
}
}
SignalAwaiterCallable::SignalAwaiterCallable(Object *p_target, MonoObject *p_awaiter, const StringName &p_signal) :
target_id(p_target->get_instance_id()),
awaiter_handle(MonoGCHandleData::new_strong_handle(p_awaiter)),
signal(p_signal) {
}
SignalAwaiterCallable::~SignalAwaiterCallable() {
awaiter_handle.release();
}
bool EventSignalCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) {
const EventSignalCallable *a = static_cast<const EventSignalCallable *>(p_a);
const EventSignalCallable *b = static_cast<const EventSignalCallable *>(p_b);
if (a->owner != b->owner) {
return false;
}
if (a->event_signal != b->event_signal) {
return false;
}
return true;
}
bool EventSignalCallable::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 EventSignalCallable::hash() const {
uint32_t hash = event_signal->field->get_name().hash();
return hash_djb2_one_64(owner->get_instance_id(), hash);
}
String EventSignalCallable::get_as_text() const {
String class_name = owner->get_class();
Ref<Script> script = owner->get_script();
if (script.is_valid() && script->get_path().is_resource_file()) {
class_name += "(" + script->get_path().get_file() + ")";
}
StringName signal = event_signal->field->get_name();
return class_name + "::EventSignalMiddleman::" + String(signal);
}
CallableCustom::CompareEqualFunc EventSignalCallable::get_compare_equal_func() const {
return compare_equal_func_ptr;
}
CallableCustom::CompareLessFunc EventSignalCallable::get_compare_less_func() const {
return compare_less_func_ptr;
}
ObjectID EventSignalCallable::get_object() const {
return owner->get_instance_id();
}
StringName EventSignalCallable::get_signal() const {
return event_signal->field->get_name();
}
void EventSignalCallable::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();
ERR_FAIL_COND(p_argcount < event_signal->invoke_method->get_parameters_count());
CSharpInstance *csharp_instance = CAST_CSHARP_INSTANCE(owner->get_script_instance());
ERR_FAIL_NULL(csharp_instance);
MonoObject *owner_managed = csharp_instance->get_mono_object();
ERR_FAIL_NULL(owner_managed);
MonoObject *delegate_field_value = event_signal->field->get_value(owner_managed);
if (!delegate_field_value) {
r_call_error.error = Callable::CallError::CALL_OK;
return;
}
MonoException *exc = nullptr;
event_signal->invoke_method->invoke(delegate_field_value, p_arguments, &exc);
if (exc) {
GDMonoUtils::set_pending_exception(exc);
ERR_FAIL();
} else {
r_call_error.error = Callable::CallError::CALL_OK;
}
}
EventSignalCallable::EventSignalCallable(Object *p_owner, const CSharpScript::EventSignal *p_event_signal) :
owner(p_owner),
event_signal(p_event_signal) {
}
|