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/*
Unix SMB/CIFS implementation.
POSIX NTVFS backend - flush
Copyright (C) Andrew Tridgell 2004
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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "vfs_posix.h"
/*
flush a single open file
*/
static void pvfs_flush_file(struct pvfs_state *pvfs, struct pvfs_file *f)
{
if (f->handle->fd == -1) {
return;
}
if (pvfs->flags & PVFS_FLAG_STRICT_SYNC) {
fsync(f->handle->fd);
}
}
/*
flush a fnum
*/
NTSTATUS pvfs_flush(struct ntvfs_module_context *ntvfs,
struct ntvfs_request *req, struct smb_flush *io)
{
struct pvfs_state *pvfs = ntvfs->private_data;
struct pvfs_file *f;
if (io->in.fnum != 0xFFFF) {
f = pvfs_find_fd(pvfs, req, io->in.fnum);
if (!f) {
return NT_STATUS_INVALID_HANDLE;
}
pvfs_flush_file(pvfs, f);
return NT_STATUS_OK;
}
if (!(pvfs->flags & PVFS_FLAG_STRICT_SYNC)) {
return NT_STATUS_OK;
}
/* they are asking to flush all open files */
for (f=pvfs->open_files;f;f=f->next) {
pvfs_flush_file(pvfs, f);
}
return NT_STATUS_OK;
}
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