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/*
Unix SMB/CIFS implementation.
Infrastructure for async requests
Copyright (C) Volker Lendecke 2008
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/>.
*/
#include "includes.h"
char *async_req_print(TALLOC_CTX *mem_ctx, struct async_req *req)
{
return talloc_asprintf(mem_ctx, "async_req: state=%d, status=%s, "
"priv=%s", req->state, nt_errstr(req->status),
talloc_get_name(req->private_data));
}
struct async_req *async_req_new(TALLOC_CTX *mem_ctx, struct event_context *ev)
{
struct async_req *result;
result = TALLOC_ZERO_P(mem_ctx, struct async_req);
if (result == NULL) {
return NULL;
}
result->state = ASYNC_REQ_IN_PROGRESS;
result->event_ctx = ev;
result->print = async_req_print;
return result;
}
void async_req_done(struct async_req *req)
{
req->status = NT_STATUS_OK;
req->state = ASYNC_REQ_DONE;
if (req->async.fn != NULL) {
req->async.fn(req);
}
}
void async_req_error(struct async_req *req, NTSTATUS status)
{
req->status = status;
req->state = ASYNC_REQ_ERROR;
if (req->async.fn != NULL) {
req->async.fn(req);
}
}
static void async_trigger(struct event_context *ev, struct timed_event *te,
const struct timeval *now, void *priv)
{
struct async_req *req = talloc_get_type_abort(priv, struct async_req);
TALLOC_FREE(te);
if (NT_STATUS_IS_OK(req->status)) {
async_req_done(req);
}
else {
async_req_error(req, req->status);
}
}
bool async_post_status(struct async_req *req, NTSTATUS status)
{
/*
* Used if a request is finished before it even started
*/
req->status = status;
if (event_add_timed(req->event_ctx, req, timeval_zero(),
"async_trigger",
async_trigger, req) == NULL) {
return false;
}
return true;
}
bool async_req_nomem(const void *p, struct async_req *req)
{
if (p != NULL) {
return false;
}
async_req_error(req, NT_STATUS_NO_MEMORY);
return true;
}
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