socket_select.h

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/*
 * 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 <toolchain.h>
#include <net/socket_types.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct zsock_fd_set {
        uint32_t bitset[(CONFIG_POSIX_MAX_FDS + 31) / 32];
} zsock_fd_set;
 
 
__syscall 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
 
#include <syscalls/socket_select.h>
 
#endif /* ZEPHYR_INCLUDE_NET_SOCKET_SELECT_H_ */