diff options
Diffstat (limited to 'nuttx/include/sys/select.h')
| -rw-r--r-- | nuttx/include/sys/select.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/nuttx/include/sys/select.h b/nuttx/include/sys/select.h deleted file mode 100644 index 1ff074b6c..000000000 --- a/nuttx/include/sys/select.h +++ /dev/null @@ -1,121 +0,0 @@ -/**************************************************************************** - * include/sys/select.h - * - * Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -#ifndef __INCLUDE_SYS_SELECT_H -#define __INCLUDE_SYS_SELECT_H - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <stdint.h> -#include <time.h> - -#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0 - -/**************************************************************************** - * Pre-Processor Definitions - ****************************************************************************/ - -/* Get the total number of descriptors that we will have to support */ - -#define __SELECT_NDESCRIPTORS (CONFIG_NFILE_DESCRIPTORS + CONFIG_NSOCKET_DESCRIPTORS) - -/* We will use a 32-bit bitsets to represent the set of descriptors. How - * many uint32_t's do we need to span all descriptors? - */ - -#if __SELECT_NDESCRIPTORS <= 32 -# define __SELECT_NUINT32 1 -#elif __SELECT_NDESCRIPTORS <= 64 -# define __SELECT_NUINT32 2 -#elif __SELECT_NDESCRIPTORS <= 96 -# define __SELECT_NUINT32 3 -#elif __SELECT_NDESCRIPTORS <= 128 -# define __SELECT_NUINT32 4 -#elif __SELECT_NDESCRIPTORS <= 160 -# define __SELECT_NUINT32 5 -#elif __SELECT_NDESCRIPTORS <= 192 -# define __SELECT_NUINT32 6 -#elif __SELECT_NDESCRIPTORS <= 224 -# define __SELECT_NUINT32 7 -#elif __SELECT_NDESCRIPTORS <= 256 -# define __SELECT_NUINT32 8 -#else -# warning "Large fd_set needed" -#endif - -/* These macros map a file descripto to an index and bit number */ - -#define _FD_NDX(fd) ((fd) >> 5) -#define _FD_BIT(fd) ((fd) & 0x1f) - -/* Standard helper macros */ - -#define FD_CLR(fd,set) (((uint32_t*)(set))[_FD_NDX(fd)] &= ~(1 << _FD_BIT(fd))) -#define FD_SET(fd,set) (((uint32_t*)(set))[_FD_NDX(fd)] |= (1 << _FD_BIT(fd))) -#define FD_ISSET(fd,set) ((((uint32_t*)(set))[_FD_NDX(fd)] & (1 << _FD_BIT(fd))) != 0) -#define FD_ZERO(set) memset(set, 0, sizeof(fd_set)) - -/**************************************************************************** - * Type Definitions - ****************************************************************************/ - -typedef uint32_t fd_set[__SELECT_NUINT32]; - -/**************************************************************************** - * Public Function Prototypes - ****************************************************************************/ - -#undef EXTERN -#if defined(__cplusplus) -#define EXTERN extern "C" -extern "C" { -#else -#define EXTERN extern -#endif - -EXTERN int select(int nfds, FAR fd_set *readfds, FAR fd_set *writefds, - FAR fd_set *exceptfds, FAR struct timeval *timeout); - -#undef EXTERN -#if defined(__cplusplus) -} -#endif - -#endif /* CONFIG_NFILE_DESCRIPTORS || CONFIG_NSOCKET_DESCRIPTORS */ -#endif /* __INCLUDE_SYS_SELECT_H */ |