diff options
Diffstat (limited to 'main.c')
-rw-r--r-- | main.c | 95 |
1 files changed, 95 insertions, 0 deletions
@@ -0,0 +1,95 @@ +/* + * Copyright (C) 2023 Mikhail Burakov. This file is part of receiver. + * + * receiver is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * receiver is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with receiver. If not, see <https://www.gnu.org/licenses/>. + */ + +#include <errno.h> +#include <poll.h> +#include <signal.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "decode.h" +#include "util.h" +#include "window.h" + +static volatile sig_atomic_t g_signal; +static void OnSignal(int status) { g_signal = status; } + +int main(int argc, char* argv[]) { + (void)argc; + (void)argv; + + struct AUTO(DecodeContext)* decode_context = DecodeContextCreate(); + if (!decode_context) { + LOG("Failed to create decode context"); + return EXIT_FAILURE; + } + + struct AUTO(Window)* window = WindowCreate(); + if (!window) { + LOG("Failed to create window"); + return EXIT_FAILURE; + } + + int events_fd = WindowGetEventsFd(window); + if (events_fd == -1) { + LOG("Failed to get events fd"); + return EXIT_FAILURE; + } + + if (signal(SIGINT, OnSignal) == SIG_ERR || + signal(SIGTERM, OnSignal) == SIG_ERR) { + LOG("Failed to set signal handlers (%s)", strerror(errno)); + return EXIT_FAILURE; + } + + while (!g_signal) { + struct pollfd pfds[] = { + {.fd = STDIN_FILENO, .events = POLLIN}, + {.fd = events_fd, .events = POLLIN}, + }; + switch (poll(pfds, LENGTH(pfds), -1)) { + case -1: + if (errno != EINTR) { + LOG("Failed to poll (%s)", strerror(errno)); + return EXIT_FAILURE; + } + __attribute__((fallthrough)); + case 0: + continue; + default: + break; + } + if (pfds[0].revents && !DecodeContextDecode(decode_context, STDIN_FILENO)) { + LOG("Failed to decode incoming data"); + return EXIT_FAILURE; + } + if (pfds[1].revents && !WindowProcessEvents(window)) { + LOG("Failed to process window events"); + return EXIT_FAILURE; + } + const struct Frame* frame = DecodeContextGetFrame(decode_context); + if (frame && !WindowRenderFrame(window, frame)) { + LOG("Failed to render frame"); + return EXIT_FAILURE; + } + } + + return EXIT_SUCCESS; +} |