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Diffstat (limited to 'mit-pthreads/pthreads/readv.c')
| -rw-r--r-- | mit-pthreads/pthreads/readv.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/mit-pthreads/pthreads/readv.c b/mit-pthreads/pthreads/readv.c deleted file mode 100644 index fd63d31cf94..00000000000 --- a/mit-pthreads/pthreads/readv.c +++ /dev/null @@ -1,85 +0,0 @@ -/* ==== readv.c ============================================================ - * Copyright (c) 1995 by Chris Provenzano, proven@mit.edu - * All rights reserved. - * - * 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Chris Provenzano. - * 4. The name of Chris Provenzano may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``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 CHRIS PROVENZANO 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. - * - * Description : Implementation of readv(). - * - * 1.00 95/06/19 proven - * -Started coding this file. - */ - -#ifndef lint -static const char rcsid[] = "$Id$"; -#endif - -#include "config.h" - -#ifndef HAVE_SYSCALL_READV - -#include <errno.h> -#include <unistd.h> -#include <sys/uio.h> -#include <sys/types.h> - -/* ========================================================================== - * machdep_sys_readv() - */ -int machdep_sys_readv(int fd, struct iovec * vector, int count) -{ - size_t bytes, i; - char *buffer; - int ret = 0; - - /* Find the total number of bytes to be read. */ - for (bytes = 0, i = 0; i < count; ++i) - bytes += vector[i].iov_len; - - if (bytes) { - /* - * Allocate a temporary buffer to hold the data. - * Don't use alloca because threads tend to have smaller stacks. - */ - if ((buffer = (char *)malloc(bytes)) == NULL) { - return(-ENOMEM); - } - ret = (int)machdep_sys_read(fd, buffer, bytes); - - /* Copy the data from memory specified by VECTOR to BUFFER */ - for (i = 0, bytes = 0; ret > 0; ret -= vector[i].iov_len) { - memcpy(vector[i].iov_base, buffer + bytes, - ret > vector[i].iov_len ? vector[i].iov_len : ret); - bytes += vector[i].iov_len; - } - free(buffer); - } - return(ret); -} - -#endif |