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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* fdlist.h: The file descriptor list header. |
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* |
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* Copyright (C) 2002 by the past and present ircd coders, and others. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (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 |
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* USA |
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* |
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* $Id$ |
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*/ |
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|
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#define FILEIO_V2 |
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|
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#define FD_DESC_SZ 128 /* hostlen + comment */ |
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#define LOWEST_SAFE_FD 4 /* skip stdin, stdout, stderr, and profiler */ |
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|
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enum { |
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COMM_OK, |
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COMM_ERR_BIND, |
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COMM_ERR_DNS, |
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COMM_ERR_TIMEOUT, |
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COMM_ERR_CONNECT, |
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COMM_ERROR, |
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COMM_ERR_MAX |
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}; |
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|
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struct _fde; |
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struct DNSQuery; |
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|
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/* Callback for completed IO events */ |
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typedef void PF(struct _fde *, void *); |
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|
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/* Callback for completed connections */ |
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typedef void CNCB(struct _fde *, int, void *); |
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|
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/* This is to get around the fact that some implementations have ss_len and |
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* others do not |
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*/ |
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struct irc_ssaddr |
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{ |
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union { |
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struct sockaddr_in ss; |
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#ifdef IPV6 |
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struct sockaddr_in6 ss6; |
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#endif |
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}; |
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unsigned char ss_len; |
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in_port_t ss_port; |
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}; |
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|
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typedef struct _fde { |
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/* New-school stuff, again pretty much ripped from squid */ |
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/* |
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* Yes, this gives us only one pending read and one pending write per |
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* filedescriptor. Think though: when do you think we'll need more? |
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*/ |
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int fd; /* So we can use the fde_t as a callback ptr */ |
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int comm_index; /* where in the poll list we live */ |
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int evcache; /* current fd events as set up by the underlying I/O */ |
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char desc[FD_DESC_SZ]; |
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PF *read_handler; |
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void *read_data; |
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PF *write_handler; |
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void *write_data; |
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PF *timeout_handler; |
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void *timeout_data; |
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time_t timeout; |
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PF *flush_handler; |
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void *flush_data; |
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time_t flush_timeout; |
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struct DNSQuery *dns_query; |
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struct { |
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unsigned int open:1; |
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unsigned int is_socket:1; |
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#ifdef HAVE_LIBCRYPTO |
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unsigned int pending_read:1; |
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#endif |
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} flags; |
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|
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struct { |
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/* We don't need the host here ? */ |
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struct irc_ssaddr S; |
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struct irc_ssaddr hostaddr; |
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CNCB *callback; |
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void *data; |
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/* We'd also add the retry count here when we get to that -- adrian */ |
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} connect; |
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#ifdef HAVE_LIBCRYPTO |
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SSL *ssl; |
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#endif |
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struct _fde *hnext; |
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} fde_t; |
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|
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#define FD_HASH_SIZE CLIENT_HEAP_SIZE |
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|
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LIBIO_EXTERN int number_fd; |
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LIBIO_EXTERN int hard_fdlimit; |
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LIBIO_EXTERN fde_t *fd_hash[]; |
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LIBIO_EXTERN fde_t *fd_next_in_loop; |
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LIBIO_EXTERN struct Callback *fdlimit_cb; |
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|
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#ifdef IN_MISC_C |
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extern void fdlist_init(void); |
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#endif |
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LIBIO_EXTERN fde_t *lookup_fd(int); |
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LIBIO_EXTERN void fd_open(fde_t *, int, int, const char *); |
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LIBIO_EXTERN void fd_close(fde_t *); |
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#ifndef __GNUC__ |
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LIBIO_EXTERN void fd_note(fde_t *, const char *format, ...); |
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#else |
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LIBIO_EXTERN void fd_note(fde_t *, const char *format, ...) |
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__attribute__((format (printf, 2, 3))); |
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#endif |
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#ifdef IN_MISC_C |
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extern void close_standard_fds(void); |
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#endif |
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LIBIO_EXTERN void close_fds(fde_t *); |
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LIBIO_EXTERN void recalc_fdlimit(void *); |
