/* RetroArch - A frontend for libretro. * Copyright (C) 2013-2014 - pinumbernumber * Copyright (C) 2011-2016 - Daniel De Matteis * * RetroArch 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 Found- * ation, either version 3 of the License, or (at your option) any later version. * * RetroArch 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 RetroArch. * If not, see . */ #include #include #include #include #include "epoll_common.h" #include "../../verbosity.h" static int g_epoll; static bool epoll_inited; static bool epoll_first_inited_is_joypad; bool epoll_new(bool is_joypad) { if (epoll_inited) return true; g_epoll = epoll_create(32); if (g_epoll < 0) return false; epoll_first_inited_is_joypad = is_joypad; epoll_inited = true; return true; } void epoll_free(bool is_joypad) { if (!epoll_inited || (is_joypad && !epoll_first_inited_is_joypad)) return; if (g_epoll >= 0) close(g_epoll); g_epoll = -1; epoll_inited = false; epoll_first_inited_is_joypad = false; } int epoll_waiting(struct epoll_event *events, int maxevents, int timeout) { return epoll_wait(g_epoll, events, maxevents, timeout); } bool epoll_add(int fd, void *device) { struct epoll_event event = {0}; event.events = EPOLLIN; event.data.ptr = device; /* Shouldn't happen, but just check it. */ if (epoll_ctl(g_epoll, EPOLL_CTL_ADD, fd, &event) < 0) { RARCH_ERR("Failed to add FD (%d) to epoll list (%s).\n", fd, strerror(errno)); return false; } return true; }