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/*
Unix SMB/CIFS implementation.
common events code for fd events
Copyright (C) Stefan Metzmacher 2009
** NOTE! The following LGPL license applies to the tevent
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "tevent.h"
#include "tevent_internal.h"
#include "tevent_util.h"
int tevent_common_fd_destructor(struct tevent_fd *fde)
{
if (fde->event_ctx) {
DLIST_REMOVE(fde->event_ctx->fd_events, fde);
}
if (fde->close_fn) {
fde->close_fn(fde->event_ctx, fde, fde->fd, fde->private_data);
fde->fd = -1;
}
return 0;
}
struct tevent_fd *tevent_common_add_fd(struct tevent_context *ev, TALLOC_CTX *mem_ctx,
int fd, uint16_t flags,
tevent_fd_handler_t handler,
void *private_data,
const char *handler_name,
const char *location)
{
struct tevent_fd *fde;
/* tevent will crash later on select() if we save
* a negative file descriptor. Better to fail here
* so that consumers will be able to debug it
*/
if (fd < 0) return NULL;
fde = talloc(mem_ctx?mem_ctx:ev, struct tevent_fd);
if (!fde) return NULL;
fde->event_ctx = ev;
fde->fd = fd;
fde->flags = flags;
fde->handler = handler;
fde->close_fn = NULL;
fde->private_data = private_data;
fde->handler_name = handler_name;
fde->location = location;
fde->additional_flags = 0;
fde->additional_data = NULL;
DLIST_ADD(ev->fd_events, fde);
talloc_set_destructor(fde, tevent_common_fd_destructor);
return fde;
}
uint16_t tevent_common_fd_get_flags(struct tevent_fd *fde)
{
return fde->flags;
}
void tevent_common_fd_set_flags(struct tevent_fd *fde, uint16_t flags)
{
if (fde->flags == flags) return;
fde->flags = flags;
}
void tevent_common_fd_set_close_fn(struct tevent_fd *fde,
tevent_fd_close_fn_t close_fn)
{
fde->close_fn = close_fn;
}
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