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/*************************************************************************/
/* packet_peer.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 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. */
/*************************************************************************/
#ifndef PACKET_PEER_H
#define PACKET_PEER_H
#include "core/io/stream_peer.h"
#include "core/object/class_db.h"
#include "core/templates/ring_buffer.h"
#include "core/object/gdvirtual.gen.inc"
#include "core/object/script_language.h"
#include "core/variant/native_ptr.h"
class PacketPeer : public RefCounted {
GDCLASS(PacketPeer, RefCounted);
Variant _bnd_get_var(bool p_allow_objects = false);
static void _bind_methods();
Error _put_packet(const Vector<uint8_t> &p_buffer);
Vector<uint8_t> _get_packet();
Error _get_packet_error() const;
mutable Error last_get_error = OK;
int encode_buffer_max_size = 8 * 1024 * 1024;
Vector<uint8_t> encode_buffer;
public:
virtual int get_available_packet_count() const = 0;
virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size) = 0; ///< buffer is GONE after next get_packet
virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size) = 0;
virtual int get_max_packet_size() const = 0;
/* helpers / binders */
virtual Error get_packet_buffer(Vector<uint8_t> &r_buffer);
virtual Error put_packet_buffer(const Vector<uint8_t> &p_buffer);
virtual Error get_var(Variant &r_variant, bool p_allow_objects = false);
virtual Error put_var(const Variant &p_packet, bool p_full_objects = false);
void set_encode_buffer_max_size(int p_max_size);
int get_encode_buffer_max_size() const;
PacketPeer() {}
~PacketPeer() {}
};
class PacketPeerExtension : public PacketPeer {
GDCLASS(PacketPeerExtension, PacketPeer);
protected:
static void _bind_methods();
public:
virtual int get_available_packet_count() const override;
virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size) override; ///< buffer is GONE after next get_packet
virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size) override;
virtual int get_max_packet_size() const override;
/* GDExtension */
GDVIRTUAL0RC(int, _get_available_packet_count);
GDVIRTUAL2R(int, _get_packet, GDNativeConstPtr<const uint8_t *>, GDNativePtr<int>);
GDVIRTUAL2R(int, _put_packet, GDNativeConstPtr<const uint8_t>, int);
GDVIRTUAL0RC(int, _get_max_packet_size);
};
class PacketPeerStream : public PacketPeer {
GDCLASS(PacketPeerStream, PacketPeer);
//the way the buffers work sucks, will change later
mutable Ref<StreamPeer> peer;
mutable RingBuffer<uint8_t> ring_buffer;
mutable Vector<uint8_t> input_buffer;
mutable Vector<uint8_t> output_buffer;
Error _poll_buffer() const;
protected:
static void _bind_methods();
public:
virtual int get_available_packet_count() const override;
virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size) override;
virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size) override;
virtual int get_max_packet_size() const override;
void set_stream_peer(const Ref<StreamPeer> &p_peer);
Ref<StreamPeer> get_stream_peer() const;
void set_input_buffer_max_size(int p_max_size);
int get_input_buffer_max_size() const;
void set_output_buffer_max_size(int p_max_size);
int get_output_buffer_max_size() const;
PacketPeerStream();
};
#endif // PACKET_STREAM_H
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