diff options
Diffstat (limited to 'modules/websocket/packet_buffer.h')
| -rw-r--r-- | modules/websocket/packet_buffer.h | 116 |
1 files changed, 60 insertions, 56 deletions
diff --git a/modules/websocket/packet_buffer.h b/modules/websocket/packet_buffer.h index 7b4a164576..25e1b1f15a 100644 --- a/modules/websocket/packet_buffer.h +++ b/modules/websocket/packet_buffer.h @@ -1,32 +1,32 @@ -/*************************************************************************/ -/* packet_buffer.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. */ -/*************************************************************************/ +/**************************************************************************/ +/* packet_buffer.h */ +/**************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/**************************************************************************/ +/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ +/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ +/* */ +/* 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_BUFFER_H #define PACKET_BUFFER_H @@ -41,32 +41,29 @@ private: T info; } _Packet; - RingBuffer<_Packet> _packets; + Vector<_Packet> _packets; + int _queued = 0; + int _write_pos = 0; + int _read_pos = 0; RingBuffer<uint8_t> _payload; public: Error write_packet(const uint8_t *p_payload, uint32_t p_size, const T *p_info) { -#ifdef TOOLS_ENABLED - // Verbose buffer warnings - if (p_payload && _payload.space_left() < (int32_t)p_size) { - ERR_PRINT("Buffer payload full! Dropping data."); - ERR_FAIL_V(ERR_OUT_OF_MEMORY); - } - if (p_info && _packets.space_left() < 1) { - ERR_PRINT("Too many packets in queue! Dropping data."); - ERR_FAIL_V(ERR_OUT_OF_MEMORY); - } -#else - ERR_FAIL_COND_V(p_payload && (uint32_t)_payload.space_left() < p_size, ERR_OUT_OF_MEMORY); - ERR_FAIL_COND_V(p_info && _packets.space_left() < 1, ERR_OUT_OF_MEMORY); -#endif + ERR_FAIL_COND_V_MSG(p_payload && (uint32_t)_payload.space_left() < p_size, ERR_OUT_OF_MEMORY, "Buffer payload full! Dropping data."); + ERR_FAIL_COND_V_MSG(p_info && _queued >= _packets.size(), ERR_OUT_OF_MEMORY, "Too many packets in queue! Dropping data."); // If p_info is nullptr, only the payload is written if (p_info) { + ERR_FAIL_COND_V(_write_pos > _packets.size(), ERR_OUT_OF_MEMORY); _Packet p; p.size = p_size; - memcpy(&p.info, p_info, sizeof(T)); - _packets.write(p); + p.info = *p_info; + _packets.write[_write_pos] = p; + _queued += 1; + _write_pos++; + if (_write_pos >= _packets.size()) { + _write_pos = 0; + } } // If p_payload is nullptr, only the packet information is written. @@ -78,9 +75,14 @@ public: } Error read_packet(uint8_t *r_payload, int p_bytes, T *r_info, int &r_read) { - ERR_FAIL_COND_V(_packets.data_left() < 1, ERR_UNAVAILABLE); - _Packet p; - _packets.read(&p, 1); + ERR_FAIL_COND_V(_queued < 1, ERR_UNAVAILABLE); + _Packet p = _packets[_read_pos]; + _read_pos += 1; + if (_read_pos >= _packets.size()) { + _read_pos = 0; + } + _queued -= 1; + ERR_FAIL_COND_V(_payload.data_left() < (int)p.size, ERR_BUG); ERR_FAIL_COND_V(p_bytes < (int)p.size, ERR_OUT_OF_MEMORY); @@ -90,22 +92,24 @@ public: return OK; } - void discard_payload(int p_size) { - _packets.decrease_write(p_size); - } - - void resize(int p_pkt_shift, int p_buf_shift) { - _packets.resize(p_pkt_shift); + void resize(int p_buf_shift, int p_max_packets) { _payload.resize(p_buf_shift); + _packets.resize(p_max_packets); + _read_pos = 0; + _write_pos = 0; + _queued = 0; } int packets_left() const { - return _packets.data_left(); + return _queued; } void clear() { _payload.resize(0); _packets.resize(0); + _read_pos = 0; + _write_pos = 0; + _queued = 0; } PacketBuffer() { |