imapext-2007
diff src/osdep/amiga/write.c @ 0:ada5e610ab86
imap-2007e
author | yuuji@gentei.org |
---|---|
date | Mon, 14 Sep 2009 15:17:45 +0900 |
parents | |
children |
line diff
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/osdep/amiga/write.c Mon Sep 14 15:17:45 2009 +0900 1.3 @@ -0,0 +1,59 @@ 1.4 +/* ======================================================================== 1.5 + * Copyright 1988-2006 University of Washington 1.6 + * 1.7 + * Licensed under the Apache License, Version 2.0 (the "License"); 1.8 + * you may not use this file except in compliance with the License. 1.9 + * You may obtain a copy of the License at 1.10 + * 1.11 + * http://www.apache.org/licenses/LICENSE-2.0 1.12 + * 1.13 + * 1.14 + * ======================================================================== 1.15 + */ 1.16 + 1.17 +/* 1.18 + * Program: Write data, treating partial writes as an error 1.19 + * 1.20 + * Author: Mark Crispin 1.21 + * Networks and Distributed Computing 1.22 + * Computing & Communications 1.23 + * University of Washington 1.24 + * Administration Building, AG-44 1.25 + * Seattle, WA 98195 1.26 + * Internet: MRC@CAC.Washington.EDU 1.27 + * 1.28 + * Date: 26 May 1995 1.29 + * Last Edited: 30 August 2006 1.30 + */ 1.31 + 1.32 +/* The whole purpose of this unfortunate routine is to deal with DOS and 1.33 + * certain cretinous versions of UNIX which decided that the "bytes actually 1.34 + * written" return value from write() gave them license to use that for things 1.35 + * that are really errors, such as disk quota exceeded, maximum file size 1.36 + * exceeded, disk full, etc. 1.37 + * 1.38 + * BSD won't screw us this way on the local filesystem, but who knows what 1.39 + * some NFS-mounted filesystem will do. 1.40 + */ 1.41 + 1.42 +#undef write 1.43 + 1.44 +/* Write data to file 1.45 + * Accepts: file descriptor 1.46 + * I/O vector structure 1.47 + * number of vectors in structure 1.48 + * Returns: number of bytes written if successful, -1 if failure 1.49 + */ 1.50 + 1.51 +long maxposint = (long)((((unsigned long) 1) << ((sizeof(int) * 8) - 1)) - 1); 1.52 + 1.53 +long safe_write (int fd,char *buf,long nbytes) 1.54 +{ 1.55 + long i,j; 1.56 + if (nbytes > 0) for (i = nbytes; i; i -= j,buf += j) { 1.57 + while (((j = write (fd,buf,(int) min (maxposint,i))) < 0) && 1.58 + (errno == EINTR)); 1.59 + if (j < 0) return j; 1.60 + } 1.61 + return nbytes; 1.62 +}