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+/*
+ * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
+ * fdlist.h: The file descriptor list header.
+ *
+ * Copyright (C) 2002 by the past and present ircd coders, and others.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ * $Id$
+ */
+
+#ifndef INCLUDED_fdlist_h
+#define INCLUDED_fdlist_h
+#define FILEIO_V2
+
+#include "ircd_defs.h"
+#define FD_DESC_SZ 128 /* hostlen + comment */
+
+enum {
+ COMM_OK,
+ COMM_ERR_BIND,
+ COMM_ERR_DNS,
+ COMM_ERR_TIMEOUT,
+ COMM_ERR_CONNECT,
+ COMM_ERROR,
+ COMM_ERR_MAX
+};
+
+struct _fde;
+struct Client;
+
+/* Callback for completed IO events */
+typedef void PF(struct _fde *, void *);
+
+/* Callback for completed connections */
+/* int fd, int status, void * */
+typedef void CNCB(struct _fde *, int, void *);
+
+typedef struct _fde {
+ /* New-school stuff, again pretty much ripped from squid */
+ /*
+ * Yes, this gives us only one pending read and one pending write per
+ * filedescriptor. Think though: when do you think we'll need more?
+ */
+ int fd; /* So we can use the fde_t as a callback ptr */
+ int comm_index; /* where in the poll list we live */
+ int evcache; /* current fd events as set up by the underlying I/O */
+ char desc[FD_DESC_SZ];
+ PF *read_handler;
+ void *read_data;
+ PF *write_handler;
+ void *write_data;
+ PF *timeout_handler;
+ void *timeout_data;
+ time_t timeout;
+ PF *flush_handler;
+ void *flush_data;
+ time_t flush_timeout;
+
+ struct {
+ unsigned int open:1;
+ unsigned int is_socket:1;
+#ifdef HAVE_LIBCRYPTO
+ unsigned int pending_read:1;
+#endif
+ } flags;
+
+ struct {
+ /* We don't need the host here ? */
+ struct irc_ssaddr S;
+ struct irc_ssaddr hostaddr;
+ CNCB *callback;
+ void *data;
+ /* We'd also add the retry count here when we get to that -- adrian */
+ } connect;
+#ifdef HAVE_LIBCRYPTO
+ SSL *ssl;
+#endif
+ struct _fde *hnext;
+} fde_t;
+
+#define FD_HASH_SIZE CLIENT_HEAP_SIZE
+
+extern int number_fd;
+extern int hard_fdlimit;
+extern fde_t *fd_hash[];
+extern fde_t *fd_next_in_loop;
+extern struct Callback *fdlimit_cb;
+
+extern void fdlist_init(void);
+extern fde_t *lookup_fd(int);
+extern void fd_open(fde_t *, int, int, const char *);
+extern void fd_close(fde_t *);
+extern void fd_dump(struct Client *);
+extern void fd_note(fde_t *, const char *, ...);
+extern void close_standard_fds(void);
+extern void close_fds(fde_t *);
+extern void recalc_fdlimit(void *);
+
+#endif /* INCLUDED_fdlist_h */