From 82dcae9de0f7ca290bba97b6dfb8449e1a2e27fb Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Tue, 25 Sep 2007 06:43:17 +0000 Subject: Rework File_read interface. Get file size. Use pread when available. --- gold/pread.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 gold/pread.c (limited to 'gold/pread.c') diff --git a/gold/pread.c b/gold/pread.c new file mode 100644 index 0000000..1b0cf40 --- /dev/null +++ b/gold/pread.c @@ -0,0 +1,39 @@ +/* pread.c -- version of pread for gold. */ + +/* Copyright 2006, 2007 Free Software Foundation, Inc. + Written by Ian Lance Taylor . + + This file is part of gold. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +/* This file implements pread for systems which don't have it. This + file is only compiled if pread is not present on the system. This + is not an exact version of pread, as it does not preserve the + current file offset. */ + +#include "config.h" + +#include +#include + +ssize_t +pread(int fd, void* buf, size_t count, off_t offset) +{ + if (lseek(fd, offset, SEEK_SET) != offset) + return -1; + return read(fd, buf, count); +} -- cgit v1.1