89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
// network demo: sockets, downloads, script, @todo: ecs, vm, obj, teal
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// - rlyeh, public domain.
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//
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// Compile with:
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// `make demos\07-network.c` (windows)
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// `sh MAKE.bat demos/07-network.c` (linux, osx)
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#include "v4k.h"
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volatile int client_socket = -1;
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volatile int server_socket = -1;
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int server_echo(int cli) {
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ui_notify("Server: client connected", va("Address %s:%s", tcp_host(cli), tcp_port(cli)));
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char buf[128];
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int len = tcp_recv(cli, buf, 128);
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if( len > 0 ) tcp_send(cli, buf, len); // echo
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tcp_close(cli);
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return 1;
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}
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int server_thread(void *userdata) {
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server_socket = tcp_bind("0.0.0.0", "8080", 10); // port "0" for auto
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for(;;) {
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tcp_peek(server_socket, server_echo);
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sleep_ms(100);
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}
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}
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void client_message(const char *msg) {
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client_socket = tcp_open("127.0.0.1", "8080");
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if( client_socket >= 0 ) {
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tcp_send(client_socket, msg, strlen(msg));
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char buf[128];
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int rlen = tcp_recv(client_socket, buf, 128);
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if(rlen > 0) ui_notify("Client", va("Received '%.*s' from server", rlen, buf));
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// tcp_close(client_socket);
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}
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}
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int main() {
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window_create(0.85, 0);
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window_title(__FILE__);
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while(window_swap()) {
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static int ui_open; ui_open = 1;
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if( ui_window("Network", &ui_open) ) {
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if( ui_button("Server: listen") ) { do_once thread(server_thread, NULL); }
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ui_label(server_socket >= 0 ? "Listening at 8080 port" : "Not ready");
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ui_separator();
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if( ui_button("Client: send message") ) client_message("Hi");
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ui_label(client_socket >= 0 ? va("Connected to server. My address is %s:%s", tcp_host(client_socket), tcp_port(client_socket)) : "Not connected");
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ui_separator();
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if( ui_button("Download test (https)")) {
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array(char) webfile = download("https://www.google.com/"); // @leak
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ui_notify("Download test", va("%d bytes downloaded from google.com", array_count(webfile)));
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}
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ui_separator();
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if( ui_button("Script test")) {
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script_run( "ui_notify(\"Script test\", \"Hello from \" .. _VERSION)");
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script_run( "-- Bye.lua\nio.write(\"script test: Bye world!, from \", _VERSION, \"\\n\")" );
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}
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ui_window_end();
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}
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}
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}
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// this demo supersedes following old sources:
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// https://github.com/r-lyeh/V4K/blob/45e34d7890b2b8fe1f4994f4b76e496280d83cb6/demos/00-demo.c
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// https://github.com/r-lyeh/V4K/blob/45e34d7890b2b8fe1f4994f4b76e496280d83cb6/demos/00-script.c
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// https://github.com/r-lyeh/V4K/blob/45e34d7890b2b8fe1f4994f4b76e496280d83cb6/demos/00-socket.c
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#if 0 // teal
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script_run("local tl=require(\"tl\")\ntl.loader()");
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script_run("addsub = require(\"s2\"); print (addsub.add(10, 20))");
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s2.tl:
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local function add(a: number, b: number): number
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return a + b
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end
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local s = add(1,2)
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print(s)
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#endif
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