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/*
Unix SMB/CIFS implementation.
generalised event loop handling
Copyright (C) Andrew Tridgell 2005
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.
*/
#ifndef __EVENTS_H__
#define __EVENTS_H__
#include "talloc/talloc.h"
#include <stdlib.h>
struct event_context;
struct event_ops;
struct fd_event;
struct timed_event;
struct aio_event;
struct signal_event;
/* event handler types */
typedef void (*event_fd_handler_t)(struct event_context *, struct fd_event *,
uint16_t , void *);
typedef void (*event_timed_handler_t)(struct event_context *, struct timed_event *,
struct timeval , void *);
typedef void (*event_signal_handler_t)(struct event_context *, struct signal_event *,
int , int, void *, void *);
typedef void (*event_aio_handler_t)(struct event_context *, struct aio_event *,
int, void *);
struct event_context *event_context_init(TALLOC_CTX *mem_ctx);
struct event_context *event_context_init_byname(TALLOC_CTX *mem_ctx, const char *name);
const char **event_backend_list(TALLOC_CTX *mem_ctx);
struct fd_event *event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx,
int fd, uint16_t flags, event_fd_handler_t handler,
void *private);
struct timed_event *event_add_timed(struct event_context *ev, TALLOC_CTX *mem_ctx,
struct timeval next_event,
event_timed_handler_t handler,
void *private);
struct signal_event *event_add_signal(struct event_context *ev, TALLOC_CTX *mem_ctx,
int signum, int sa_flags,
event_signal_handler_t handler,
void *private);
struct iocb;
struct aio_event *event_add_aio(struct event_context *ev,
TALLOC_CTX *mem_ctx,
struct iocb *iocb,
event_aio_handler_t handler,
void *private);
int event_loop_once(struct event_context *ev);
int event_loop_wait(struct event_context *ev);
uint16_t event_get_fd_flags(struct fd_event *fde);
void event_set_fd_flags(struct fd_event *fde, uint16_t flags);
struct event_context *event_context_find(TALLOC_CTX *mem_ctx);
/* bits for file descriptor event flags */
#define EVENT_FD_READ 1
#define EVENT_FD_WRITE 2
#define EVENT_FD_WRITEABLE(fde) \
event_set_fd_flags(fde, event_get_fd_flags(fde) | EVENT_FD_WRITE)
#define EVENT_FD_READABLE(fde) \
event_set_fd_flags(fde, event_get_fd_flags(fde) | EVENT_FD_READ)
#define EVENT_FD_NOT_WRITEABLE(fde) \
event_set_fd_flags(fde, event_get_fd_flags(fde) & ~EVENT_FD_WRITE)
#define EVENT_FD_NOT_READABLE(fde) \
event_set_fd_flags(fde, event_get_fd_flags(fde) & ~EVENT_FD_READ)
#endif /* __EVENTS_H__ */
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