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Diffstat (limited to 'nuttx/include/sys/sendfile.h')
-rw-r--r-- | nuttx/include/sys/sendfile.h | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/nuttx/include/sys/sendfile.h b/nuttx/include/sys/sendfile.h deleted file mode 100644 index 0f3c05444..000000000 --- a/nuttx/include/sys/sendfile.h +++ /dev/null @@ -1,123 +0,0 @@ -/**************************************************************************** - * include/sys/sendfile.h - * - * Copyright (C) 2012 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_SENDFILE_H -#define __INCLUDE_SYS_SENDFILE_H - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <sys/types.h> - -/**************************************************************************** - * Pre-Processor Definitions - ****************************************************************************/ -/* Configuration ************************************************************/ - -#ifndef CONFIG_LIB_SENDFILE_BUFSIZE -# define CONFIG_LIB_SENDFILE_BUFSIZE 512 -#endif - -/**************************************************************************** - * Public Type Definitions - ****************************************************************************/ - -/**************************************************************************** - * Public Function Prototypes - ****************************************************************************/ - -#undef EXTERN -#if defined(__cplusplus) -#define EXTERN extern "C" -extern "C" { -#else -#define EXTERN extern -#endif - -/************************************************************************ - * Name: sendfile - * - * Description: - * sendfile() copies data between one file descriptor and another. - * sendfile() basically just wraps a sequence of reads() and writes() - * to perform a copy. It serves a purpose in systems where there is - * a penalty for copies to between user and kernal space, but really - * nothing in NuttX but provide some Linux compatible (and adding - * another 'almost standard' interface). - * - * NOTE: This interface is *not* specified in POSIX.1-2001, or other - * standards. The implementation here is very similar to the Linux - * sendfile interface. Other UNIX systems implement sendfile() with - * different semantics and prototypes. sendfile() should not be used - * in portable programs. - * - * Input Parmeters: - * infd - A file (or socket) descriptor opened for reading - * outfd - A descriptor opened for writing. - * offset - If 'offset' is not NULL, then it points to a variable - * holding the file offset from which sendfile() will start - * reading data from 'infd'. When sendfile() returns, this - * variable will be set to the offset of the byte following - * the last byte that was read. If 'offset' is not NULL, - * then sendfile() does not modify the current file offset of - * 'infd'; otherwise the current file offset is adjusted to - * reflect the number of bytes read from 'infd.' - * - * If 'offset' is NULL, then data will be read from 'infd' - * starting at the current file offset, and the file offset - * will be updated by the call. - * count - The number of bytes to copy between the file descriptors. - * - * Returned Value: - * If the transfer was successful, the number of bytes written to outfd is - * returned. On error, -1 is returned, and errno is set appropriately. - * There error values are those returned by read() or write() plus: - * - * EINVAL - Bad input parameters. - * ENOMEM - Could not allocated an I/O buffer - * - ************************************************************************/ - -EXTERN ssize_t sendfile (int outfd, int infd, FAR off_t *offset, size_t count); - -#undef EXTERN -#if defined(__cplusplus) -} -#endif - -#endif /* __INCLUDE_SYS_SENDFILE_H */ |