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/* |
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* Copyright © 2005 Atheme Development Group |
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* Rights to this code are as documented in doc/pod/license.pod. |
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* |
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* This contains the connection_t structure. |
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* |
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* $Id: connection.h,v 1.5 2007-09-05 11:23:13 pippijn Exp $ |
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*/ |
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#ifndef CONNECTION_H |
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#define CONNECTION_H |
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#include <deque> |
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#include <common/util.h> |
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#include <ermyth/callback.h> |
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#define SENDQSIZE (4096 - 40) |
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/* packetqueue struct */ |
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struct packetqueue : zero_initialised |
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{ |
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node_t node; |
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int firstused; /* offset of first used byte */ |
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int firstfree; /* 1 + offset of last used byte */ |
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char buf[SENDQSIZE]; |
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packetqueue () |
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: firstused (0), firstfree (0) |
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{ |
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} |
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}; |
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enum connection_flag |
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{ |
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CF_UPLINK = 1 << 0, |
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CF_DCCOUT = 1 << 1, |
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CF_DCCIN = 1 << 2, |
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CF_CONNECTING = 1 << 3, |
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CF_LISTENING = 1 << 4, |
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CF_CONNECTED = 1 << 5, |
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CF_DEAD = 1 << 6, |
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CF_NONEWLINE = 1 << 7, |
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CF_SEND_EOF = 1 << 8, /* shutdown(2) write end if sendque empty */ |
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CF_SEND_DEAD = 1 << 9 /* write end shut down */ |
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}; |
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class connection_t : public object, public zero_initialised |
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{ |
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void _destroy () |
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{ |
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delete this; |
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} |
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struct callbacks |
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{ |
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functor::callback1<connection_t *> connected; |
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}; |
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public: |
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unsigned flags; |
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bool is_uplink () { return flags & CF_UPLINK; } |
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bool is_dcc () { return flags & (CF_DCCOUT | CF_DCCIN); } |
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bool is_dccout () { return flags & CF_DCCOUT; } |
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bool is_dccin () { return flags & CF_DCCIN; } |
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bool is_dead () { return flags & CF_DEAD; } |
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bool is_connecting () { return flags & CF_CONNECTING; } |
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bool is_listening () { return flags & CF_LISTENING; } |
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public: |
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unsigned index; // for list_type |
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typedef indexing_vector<connection_t> list_type; |
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static list_type list; |
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public: |
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typedef std::deque<packetqueue *> queue; |
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char name[HOSTLEN]; |
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char hbuf[BUFSIZE + 1]; |
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queue recvq; |
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queue sendq; |
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int fd; |
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int pollslot; |
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time_t first_recv; |
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time_t last_recv; |
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struct sockaddr_in *sa; |
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struct sockaddr saddr; |
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unsigned int saddr_size; |
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void (*read_handler) (connection_t *); |
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void (*write_handler) (connection_t *); |
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void (*recvq_handler) (connection_t *); |
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void (*close_handler) (connection_t *); |
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connection_t *listener; |
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void *userdata; |
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static callbacks callback; |
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public: |
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static connection_t *create (char const * const name, int fd, unsigned int flags, |
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void (*read_handler) (connection_t *), void (*write_handler) (connection_t *)); |
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static connection_t *open_tcp (char const * const host, char const * const vhost, unsigned int port, |
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void (*read_handler) (connection_t *), void (*write_handler) (connection_t *)); |
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static connection_t *open_listener_tcp (char const * const host, unsigned int port, void (*read_handler) (connection_t *)); |
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static connection_t *accept_tcp (connection_t *, void (*)(connection_t *), void (*)(connection_t *)); |
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void setselect (connection_t *cptr, void (*)(connection_t *), void (*)(connection_t *)); |
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void close (); |
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void close_soon (); |
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void close_soon_children (); |
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static void close_all (void); |
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static void stats (void (*)(char const *, void *), void *); |
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void write (char *format, ...); |
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void write_raw (char *data); |
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static connection_t *find (int); |
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static void select (time_t delay); |
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static int count (void); |
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}; |
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#endif |