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/*
Unix SMB/CIFS implementation.
NTVFS utility code
Copyright (C) Stefan Metzmacher 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.
*/
/*
this implements common utility functions that many NTVFS backends may wish to use
*/
#include "includes.h"
#include "dlinklist.h"
#include "ntvfs/ntvfs.h"
_PUBLIC_ struct ntvfs_request *ntvfs_request_create(struct ntvfs_context *ctx, TALLOC_CTX *mem_ctx,
struct auth_session_info *session_info,
uint16_t smbpid, uint16_t smbmid,
struct timeval request_time,
void *private_data,
void (*send_fn)(struct ntvfs_request *),
uint32_t state)
{
struct ntvfs_request *req;
struct ntvfs_async_state *async;
req = talloc(mem_ctx, struct ntvfs_request);
if (!req) return NULL;
req->ctx = ctx;
req->async_states = NULL;
req->session_info = session_info;
req->smbpid = smbpid;
req->smbmid = smbmid;
req->statistics.request_time = request_time;
async = talloc(req, struct ntvfs_async_state);
if (!async) goto failed;
async->state = state;
async->private_data = private_data;
async->send_fn = send_fn;
async->status = NT_STATUS_INTERNAL_ERROR;
async->ntvfs = NULL;
DLIST_ADD(req->async_states, async);
return req;
failed:
return NULL;
}
_PUBLIC_ NTSTATUS ntvfs_async_state_push(struct ntvfs_module_context *ntvfs,
struct ntvfs_request *req,
void *private_data,
void (*send_fn)(struct ntvfs_request *))
{
struct ntvfs_async_state *async;
async = talloc(req, struct ntvfs_async_state);
NT_STATUS_HAVE_NO_MEMORY(async);
async->state = req->async_states->state;
async->private_data = private_data;
async->send_fn = send_fn;
async->status = NT_STATUS_INTERNAL_ERROR;
async->ntvfs = ntvfs;
DLIST_ADD(req->async_states, async);
return NT_STATUS_OK;
}
_PUBLIC_ void ntvfs_async_state_pop(struct ntvfs_request *req)
{
struct ntvfs_async_state *async;
async = req->async_states;
DLIST_REMOVE(req->async_states, async);
req->async_states->state = async->state;
req->async_states->status = async->status;
talloc_free(async);
}
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