godot/modules/websocket/emws_peer.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

153 lines
4.7 KiB
C++

/*************************************************************************/
/* emws_peer.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. */
/*************************************************************************/
#ifdef JAVASCRIPT_ENABLED
#include "emws_peer.h"
#include "core/io/ip.h"
void EMWSPeer::set_sock(int p_sock, unsigned int p_in_buf_size, unsigned int p_in_pkt_size) {
peer_sock = p_sock;
_in_buffer.resize(p_in_pkt_size, p_in_buf_size);
_packet_buffer.resize((1 << p_in_buf_size));
}
void EMWSPeer::set_write_mode(WriteMode p_mode) {
write_mode = p_mode;
}
EMWSPeer::WriteMode EMWSPeer::get_write_mode() const {
return write_mode;
}
Error EMWSPeer::read_msg(uint8_t *p_data, uint32_t p_size, bool p_is_string) {
uint8_t is_string = p_is_string ? 1 : 0;
return _in_buffer.write_packet(p_data, p_size, &is_string);
}
Error EMWSPeer::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
int is_bin = write_mode == WebSocketPeer::WRITE_MODE_BINARY ? 1 : 0;
/* clang-format off */
EM_ASM({
var sock = Module.IDHandler.get($0);
var bytes_array = new Uint8Array($2);
var i = 0;
for(i=0; i<$2; i++) {
bytes_array[i] = getValue($1+i, 'i8');
}
if ($3) {
sock.send(bytes_array.buffer);
} else {
var string = new TextDecoder("utf-8").decode(bytes_array);
sock.send(string);
}
}, peer_sock, p_buffer, p_buffer_size, is_bin);
/* clang-format on */
return OK;
};
Error EMWSPeer::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
if (_in_buffer.packets_left() == 0)
return ERR_UNAVAILABLE;
PoolVector<uint8_t>::Write rw = _packet_buffer.write();
int read = 0;
Error err = _in_buffer.read_packet(rw.ptr(), _packet_buffer.size(), &_is_string, read);
ERR_FAIL_COND_V(err != OK, err);
*r_buffer = rw.ptr();
r_buffer_size = read;
return OK;
};
int EMWSPeer::get_available_packet_count() const {
return _in_buffer.packets_left();
};
bool EMWSPeer::was_string_packet() const {
return _is_string;
};
bool EMWSPeer::is_connected_to_host() const {
return peer_sock != -1;
};
void EMWSPeer::close(int p_code, String p_reason) {
if (peer_sock != -1) {
/* clang-format off */
EM_ASM({
var sock = Module.IDHandler.get($0);
var code = $1;
var reason = UTF8ToString($2);
sock.close(code, reason);
Module.IDHandler.remove($0);
}, peer_sock, p_code, p_reason.utf8().get_data());
/* clang-format on */
}
_is_string = 0;
_in_buffer.clear();
peer_sock = -1;
};
IP_Address EMWSPeer::get_connected_host() const {
ERR_FAIL_V_MSG(IP_Address(), "Not supported in HTML5 export.");
};
uint16_t EMWSPeer::get_connected_port() const {
ERR_FAIL_V_MSG(0, "Not supported in HTML5 export.");
};
EMWSPeer::EMWSPeer() {
peer_sock = -1;
write_mode = WRITE_MODE_BINARY;
close();
};
EMWSPeer::~EMWSPeer() {
close();
};
#endif // JAVASCRIPT_ENABLED