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sysadm |
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/*
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* Abstraction API/layer for the various ways PvPGN can inspect sockets state
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* 2003 (C) dizzy@roedu.net
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*
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* Code is based on the ideas found in thttpd project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __FDWATCH_INCLUDED__
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#define __FDWATCH_INCLUDED__
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#include "common/elist.h"
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typedef enum {
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fdwatch_type_none = 0,
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fdwatch_type_read = 1,
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fdwatch_type_write = 2
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} t_fdwatch_type;
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typedef int (*fdwatch_handler)(void *data, t_fdwatch_type);
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typedef struct {
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int fd;
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int rw;
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fdwatch_handler hnd;
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void *data;
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t_elist uselist;
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t_elist freelist;
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} t_fdwatch_fd;
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#ifdef FDWATCH_BACKEND
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typedef int (*t_fdw_cb)(t_fdwatch_fd *cfd, void *data);
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#endif
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typedef struct {
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int (*init)(int nfds);
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int (*close)(void);
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int (*add_fd)(int idx, t_fdwatch_type rw);
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int (*del_fd)(int idx);
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int (*watch)(long timeout_msecs);
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void (*handle)(void);
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} t_fdw_backend;
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extern int fdw_maxcons;
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extern t_fdwatch_fd *fdw_fds;
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#define fdw_idx(ptr) ((ptr) - fdw_fds)
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#define fdw_fd(ptr) ((ptr)->fd)
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#define fdw_rw(ptr) ((ptr)->rw)
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#define fdw_data(ptr) ((ptr)->data)
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#define fdw_hnd(ptr) ((ptr)->hnd)
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extern int fdwatch_init(int maxcons);
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extern int fdwatch_close(void);
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extern int fdwatch_add_fd(int fd, t_fdwatch_type rw, fdwatch_handler h, void *data);
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extern int fdwatch_update_fd(int idx, t_fdwatch_type rw);
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extern int fdwatch_del_fd(int idx);
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extern int fdwatch(long timeout_msecs);
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extern void fdwatch_handle(void);
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#ifdef FDWATCH_BACKEND
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extern void fdwatch_traverse(t_fdw_cb cb, void *data);
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#endif
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#endif /* __FDWATCH_INCLUDED__ */
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