alive.c File Reference

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Detailed Description

Alive status checking ping/pongs.

Author:

Raphael Manfredi

Date:

2002-2003

#include "common.h"
#include "alive.h"
#include "nodes.h"
#include "guid.h"
#include "gmsg.h"
#include "pmsg.h"
#include "mq.h"
#include "pcache.h"
#include "lib/atoms.h"
#include "lib/tm.h"
#include "lib/walloc.h"
#include "if/gnet_property_priv.h"
#include "lib/override.h"

Data Structures
struct	alive
	Structure used to keep track of the alive pings we sent, and stats. More...
struct	alive_ping
Defines
#define	INFINITY   0xffffffff
Functions
	RCSID ("$Id:alive.c, v 1.17 2005/10/21 00:55:14 cbiere Exp $")
void	alive_trim_upto (struct alive *a, GSList *item)
	Trim list of pings upto the specified linkable `item', included.
alive_ping *	ap_make (gchar *muid)
	Create an alive_ping, with proper message ID.
void	ap_free (struct alive_ping *ap)
	Free an alive_ping.
gpointer	alive_make (struct gnutella_node *n, gint max)
	Create the alive structure.
void	alive_free (gpointer obj)
	Dispose the alive structure.
void	alive_remove_link (struct alive *a, GSList *item)
	Remove and free specified "alive ping" list entry.
void	alive_ping_drop (struct alive *a, const gchar *muid)
	Drop alive ping record when message is dropped.
gboolean	alive_ping_can_send (pmsg_t *mb, const mqueue_t *q)
	Test whether an alive ping can be sent.
void	alive_pmsg_free (pmsg_t *mb, gpointer arg)
	Free routine for extended "alive ping" message block.
gboolean	alive_send_ping (gpointer obj)
	Send new "alive" ping to node.
void	ap_ack (const struct alive_ping *ap, struct alive *a)
	Acknowledge alive_ping `ap', and update roundtrip statistics in `a'.
gboolean	alive_ack_ping (gpointer obj, gchar *muid)
	Got a pong that could be an acknowledge to one of our alive pings.
void	alive_ack_first (gpointer obj, gchar *muid)
	Got a ping with TTL=0, that some servents decided to use when replying to an alive ping.
void	alive_get_roundtrip_ms (gconstpointer obj, guint32 *avg, guint32 *last)

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Define Documentation

#define INFINITY   0xffffffff

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Function Documentation

void alive_ack_first (  gpointer  obj, gchar *  muid )

Got a ping with TTL=0, that some servents decided to use when replying to an alive ping.

gboolean alive_ack_ping (  gpointer  obj, gchar *  muid )

Got a pong that could be an acknowledge to one of our alive pings. Returns: TRUE if it was indeed an ACK for a ping we sent.

void alive_free (  gpointer  obj  )

Dispose the alive structure.

void alive_get_roundtrip_ms (  gconstpointer  obj, guint32 *  avg, guint32 *  last )

Returns: the average/last ping/pong roundtrip time into supplied pointers. Values are expressed in milliseconds.

gpointer alive_make (  struct gnutella_node *  n, gint  max )

Create the alive structure. Returned as an opaque pointer.

gboolean alive_ping_can_send (  pmsg_t *  mb, const mqueue_t *  q )  [static]

Test whether an alive ping can be sent. We send only the LATEST registered one.

void alive_ping_drop (  struct alive *  a, const gchar *  muid )  [static]

Drop alive ping record when message is dropped.

void alive_pmsg_free (  pmsg_t *  mb, gpointer  arg )  [static]

Free routine for extended "alive ping" message block.

void alive_remove_link (  struct alive *  a, GSList *  item )  [static]

Remove and free specified "alive ping" list entry.

gboolean alive_send_ping (  gpointer  obj  )

Send new "alive" ping to node. Returns: TRUE if we sent it, FALSE if there are too many ACK-pending pings.

void alive_trim_upto (  struct alive *  a, GSList *  item )  [static]

Trim list of pings upto the specified linkable `item', included.

void ap_ack (  const struct alive_ping *  ap, struct alive *  a )  [static]

Acknowledge alive_ping `ap', and update roundtrip statistics in `a'. < Between sending and reception, in ms

void ap_free (  struct alive_ping *  ap  )  [static]

Free an alive_ping.

struct alive_ping* ap_make (  gchar *  muid  )  [static]

Create an alive_ping, with proper message ID.

RCSID (  "$Id:alive.  c, v 1.17 2005/10/21 00:55:14 cbiere Exp $"  )

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