| /* |
| * Copyright (c) 2019 Linaro Limited |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef ZEPHYR_INCLUDE_NET_SOCKET_SELECT_H_ |
| #define ZEPHYR_INCLUDE_NET_SOCKET_SELECT_H_ |
| |
| #include <zephyr/types.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct zsock_timeval { |
| /* Using longs, as many (?) implementations seem to use it. */ |
| long tv_sec; |
| long tv_usec; |
| }; |
| |
| typedef struct zsock_fd_set { |
| u32_t bitset[(CONFIG_POSIX_MAX_FDS + 31) / 32]; |
| } zsock_fd_set; |
| |
| /* select() API is inefficient, and implemented as inefficient wrapper on |
| * top of poll(). Avoid select(), use poll directly(). |
| */ |
| int zsock_select(int nfds, zsock_fd_set *readfds, zsock_fd_set *writefds, |
| zsock_fd_set *exceptfds, struct zsock_timeval *timeout); |
| |
| #define ZSOCK_FD_SETSIZE (sizeof(((zsock_fd_set *)0)->bitset) * 8) |
| |
| void ZSOCK_FD_ZERO(zsock_fd_set *set); |
| int ZSOCK_FD_ISSET(int fd, zsock_fd_set *set); |
| void ZSOCK_FD_CLR(int fd, zsock_fd_set *set); |
| void ZSOCK_FD_SET(int fd, zsock_fd_set *set); |
| |
| #ifdef CONFIG_NET_SOCKETS_POSIX_NAMES |
| |
| #define fd_set zsock_fd_set |
| #define timeval zsock_timeval |
| #define FD_SETSIZE ZSOCK_FD_SETSIZE |
| |
| static inline int select(int nfds, zsock_fd_set *readfds, |
| zsock_fd_set *writefds, zsock_fd_set *exceptfds, |
| struct timeval *timeout) |
| { |
| return zsock_select(nfds, readfds, writefds, exceptfds, timeout); |
| } |
| |
| static inline void FD_ZERO(zsock_fd_set *set) |
| { |
| ZSOCK_FD_ZERO(set); |
| } |
| |
| static inline int FD_ISSET(int fd, zsock_fd_set *set) |
| { |
| return ZSOCK_FD_ISSET(fd, set); |
| } |
| |
| static inline void FD_CLR(int fd, zsock_fd_set *set) |
| { |
| ZSOCK_FD_CLR(fd, set); |
| } |
| |
| static inline void FD_SET(int fd, zsock_fd_set *set) |
| { |
| ZSOCK_FD_SET(fd, set); |
| } |
| |
| #endif /* CONFIG_NET_SOCKETS_POSIX_NAMES */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* ZEPHYR_INCLUDE_NET_SOCKET_SELECT_H_ */ |