doc/technical/whats-new-code.txt


Whats changed in the codebase

# $Id$

First, please note one thing - a *LOT* has changed in hybrid-7.

* Most of the file descriptor and network code has been rewritten.
  A lot of ideas were borrowed from squid, but they have been simplified
  in places and extended in others to cover the needs of hybrid-7.

  The core network routines now sit in src/s_bsd.c. There are some remnants
  of client/server specific functions which should really be moved.
  The actual network IO loop lives in src/s_bsd_${type}.c where ${type}
  is the type of network loop (poll, select, kqueue, etc.)
  You can select the type of network loop by passing --enable-${type} /
  --disable-${type} to configure.

  Note: the code hasn't been rearranged, its been rewritten. We think
  it is more efficient, but the split-list code in s_bsd_poll.c needs some
  further research.

  Please read the documentation available, which will go into more detail.

* An event system has been added, again borrowed mainly from squid. This
  allows periodic events (channel cleanup, server connection retries, etc)
  to be scheduled without needing to add it to the main loop.

* Server to server links are now handled by the 'servlink' program
  (located in the servlink/ directory).  After negotiating a server<->server
  link, (CAPAB/SERVER/PASS or CAPAB/CRYPTSERV/CRYPTAUTH) hybrid-7 will
  fork, then exec a servlink process.  ircd-hybrid communicates with the
  program using a control socket (turn on/off crypto/zip, etc), and
  a data socket (which looks to the rest of the code like a network socket
  connected to the remote server).  The servlink process handles encryption
  and compression of server links, but is still compatable with ziplinks
  used in hybrid-6, and the hybrid-6 cryptlinks patch.
Revision:	34
Committed:	Sun Oct 2 21:05:51 2005 UTC (20 years, 9 months ago) by lusky
Content type:	text/plain
File size:	1783 byte(s)
Log Message:	create 7.2 branch, we can move/rename it as needed.
#	User	Rev	Content
1	adx	30
2			Whats changed in the codebase
3
4	knight	31	# $Id$
5	adx	30
6			First, please note one thing - a LOT has changed in hybrid-7.
7
8			* Most of the file descriptor and network code has been rewritten.
9			A lot of ideas were borrowed from squid, but they have been simplified
10			in places and extended in others to cover the needs of hybrid-7.
11
12			The core network routines now sit in src/s_bsd.c. There are some remnants
13			of client/server specific functions which should really be moved.
14			The actual network IO loop lives in src/s_bsd_${type}.c where ${type}
15			is the type of network loop (poll, select, kqueue, etc.)
16			You can select the type of network loop by passing --enable-${type} /
17			--disable-${type} to configure.
18
19			Note: the code hasn't been rearranged, its been rewritten. We think
20			it is more efficient, but the split-list code in s_bsd_poll.c needs some
21			further research.
22
23			Please read the documentation available, which will go into more detail.
24
25			* An event system has been added, again borrowed mainly from squid. This
26			allows periodic events (channel cleanup, server connection retries, etc)
27			to be scheduled without needing to add it to the main loop.
28
29			* Server to server links are now handled by the 'servlink' program
30			(located in the servlink/ directory). After negotiating a server<->server
31			link, (CAPAB/SERVER/PASS or CAPAB/CRYPTSERV/CRYPTAUTH) hybrid-7 will
32			fork, then exec a servlink process. ircd-hybrid communicates with the
33			program using a control socket (turn on/off crypto/zip, etc), and
34			a data socket (which looks to the rest of the code like a network socket
35			connected to the remote server). The servlink process handles encryption
36			and compression of server links, but is still compatable with ziplinks
37			used in hybrid-6, and the hybrid-6 cryptlinks patch.