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/*
Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif
#include "xlator.h"
#include "defaults.h"
#include "meta-mem-types.h"
#include "meta.h"
#include "strfd.h"
static int
measure_file_fill (xlator_t *this, inode_t *file, strfd_t *strfd)
{
strprintf (strfd, "%d\n", this->ctx->measure_latency);
return strfd->size;
}
static int
measure_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
struct iovec *iov, int count, off_t offset,
uint32_t flags, struct iobref *iobref, dict_t *xdata)
{
struct iatt dummy = { };
long int num = -1;
num = strtol (iov[0].iov_base, NULL, 0);
this->ctx->measure_latency = !!num;
META_STACK_UNWIND (writev, frame, iov_length (iov, count), 0,
&dummy, &dummy, xdata);
return 0;
}
int
measure_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc,
off_t offset, dict_t *xdata)
{
struct iatt iatt = { };
meta_iatt_fill (&iatt, loc->inode, IA_IFREG);
META_STACK_UNWIND (truncate, frame, 0, 0, &iatt, &iatt, xdata);
return 0;
}
int
measure_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd,
off_t offset, dict_t *xdata)
{
struct iatt iatt = { };
meta_iatt_fill (&iatt, fd->inode, IA_IFREG);
META_STACK_UNWIND (ftruncate, frame, 0, 0, &iatt, &iatt, xdata);
return 0;
}
static struct meta_ops measure_file_ops = {
.file_fill = measure_file_fill,
.fops = {
.truncate = measure_truncate,
.ftruncate = measure_ftruncate,
.writev = measure_writev
}
};
int
meta_measure_file_hook (call_frame_t *frame, xlator_t *this, loc_t *loc,
dict_t *xdata)
{
meta_ops_set (loc->inode, this, &measure_file_ops);
return 0;
}
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