select.h

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/*
 * This file is part of the µOS++ project (https://micro-os-plus.github.io/).
 * Copyright (c) 2015-2025 Liviu Ionescu. All rights reserved.
 *
 * Permission to use, copy, modify, and/or distribute this software
 * for any purpose is hereby granted, under the terms of the MIT license.
 *
 * If a copy of the license was not distributed with this file, it can
 * be obtained from https://opensource.org/licenses/mit.
 */
 
#ifndef POSIX_IO_SYS_SELECT_H_
#define POSIX_IO_SYS_SELECT_H_
 
// ----------------------------------------------------------------------------
 
#include <unistd.h>
 
#if defined(_POSIX_VERSION)
#include_next <sys/select.h>
#else
 
#include <sys/types.h>
 
#ifdef __cplusplus
extern "C"
{
#endif
 
  // --------------------------------------------------------------------------
 
  //  typedef struct
  //  {
  //  }fd_set;
  //
  //  struct timeval
  //  {
  //    time_t tv_sec;      // Seconds.
  //    suseconds_t tv_usec;     // Microseconds.
  //  };
 
  int
  select (int nfds, fd_set* readfds, fd_set* writefds, fd_set* errorfds,
          struct timeval* timeout);
 
  // --------------------------------------------------------------------------
 
#ifdef __cplusplus
}
#endif
 
#endif /* defined(_POSIX_VERSION) */
 
#endif /* POSIX_IO_SYS_SELECT_H_ */