d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
130 lines
5.2 KiB
C++
130 lines
5.2 KiB
C++
/**************************************************************************/
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/* message_queue.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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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 MESSAGE_QUEUE_H
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#define MESSAGE_QUEUE_H
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#include "core/object/object_id.h"
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#include "core/os/thread_safe.h"
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#include "core/variant/variant.h"
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class Object;
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class MessageQueue {
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_THREAD_SAFE_CLASS_
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enum {
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DEFAULT_QUEUE_SIZE_KB = 4096
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};
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enum {
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TYPE_CALL,
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TYPE_NOTIFICATION,
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TYPE_SET,
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FLAG_SHOW_ERROR = 1 << 14,
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FLAG_MASK = FLAG_SHOW_ERROR - 1
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};
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struct Message {
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Callable callable;
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int16_t type;
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union {
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int16_t notification;
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int16_t args;
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};
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};
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uint8_t *buffer = nullptr;
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uint32_t buffer_end = 0;
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uint32_t buffer_max_used = 0;
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uint32_t buffer_size = 0;
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void _call_function(const Callable &p_callable, const Variant *p_args, int p_argcount, bool p_show_error);
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static MessageQueue *singleton;
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bool flushing = false;
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public:
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static MessageQueue *get_singleton();
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Error push_callp(ObjectID p_id, const StringName &p_method, const Variant **p_args, int p_argcount, bool p_show_error = false);
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template <typename... VarArgs>
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Error push_call(ObjectID p_id, const StringName &p_method, VarArgs... p_args) {
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Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
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const Variant *argptrs[sizeof...(p_args) + 1];
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for (uint32_t i = 0; i < sizeof...(p_args); i++) {
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argptrs[i] = &args[i];
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}
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return push_callp(p_id, p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
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}
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Error push_notification(ObjectID p_id, int p_notification);
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Error push_set(ObjectID p_id, const StringName &p_prop, const Variant &p_value);
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Error push_callablep(const Callable &p_callable, const Variant **p_args, int p_argcount, bool p_show_error = false);
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template <typename... VarArgs>
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Error push_callable(const Callable &p_callable, VarArgs... p_args) {
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Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
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const Variant *argptrs[sizeof...(p_args) + 1];
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for (uint32_t i = 0; i < sizeof...(p_args); i++) {
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argptrs[i] = &args[i];
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}
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return push_callablep(p_callable, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
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}
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Error push_callp(Object *p_object, const StringName &p_method, const Variant **p_args, int p_argcount, bool p_show_error = false);
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template <typename... VarArgs>
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Error push_call(Object *p_object, const StringName &p_method, VarArgs... p_args) {
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Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
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const Variant *argptrs[sizeof...(p_args) + 1];
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for (uint32_t i = 0; i < sizeof...(p_args); i++) {
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argptrs[i] = &args[i];
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}
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return push_callp(p_object, p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args));
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}
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Error push_notification(Object *p_object, int p_notification);
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Error push_set(Object *p_object, const StringName &p_prop, const Variant &p_value);
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void statistics();
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void flush();
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bool is_flushing() const;
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int get_max_buffer_usage() const;
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MessageQueue();
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~MessageQueue();
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};
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#endif // MESSAGE_QUEUE_H
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