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Fix extfs fuse frontend not compiling.

This commit is contained in:
Jonas 'Sortie' Termansen 2015-01-30 15:45:42 +01:00
parent 231f73c4f9
commit 3754dbd5cd
1 changed files with 0 additions and 73 deletions
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73
ext/ioleast.cpp
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/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
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, see <http://www.gnu.org/licenses/>.
ioleast.cpp
Sortix functions for reliable reads and writes.
*******************************************************************************/
#include <stddef.h>
#include <stdint.h>
#include <unistd.h>
#include "ioleast.h"
#if !defined(__sortix__)
size_t preadleast(int fd, void* buf, size_t least, size_t max, off_t off)
{
ssize_t amount = pread(fd, buf, max, off);
if ( amount < 0 ) { return 0; }
if ( least && !amount ) { return 0; }
if ( (size_t) amount < least )
{
void* nextbuf = (uint8_t*) buf + amount;
size_t nextleast = least - amount;
size_t nextmax = max - amount;
off_t nextoff = off + amount;
amount += preadleast(fd, nextbuf, nextleast, nextmax, nextoff);
}
return amount;
}
size_t preadall(int fd, void* buf, size_t count, off_t off)
{
return preadleast(fd, buf, count, count, off);
}
size_t pwriteleast(int fd, const void* buf, size_t least, size_t max, off_t off)
{
ssize_t amount = pwrite(fd, buf, max, off);
if ( amount < 0 ) { return 0; }
if ( least && !amount ) { return 0; }
if ( (size_t) amount < least )
{
const void* nextbuf = (const uint8_t*) buf + amount;
size_t nextleast = least - amount;
size_t nextmax = max - amount;
off_t nextoff = off + amount;
amount += pwriteleast(fd, nextbuf, nextleast, nextmax, nextoff);
}
return amount;
}
size_t pwriteall(int fd, const void* buf, size_t count, off_t off)
{
return pwriteleast(fd, buf, count, count, off);
}
#endif