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Comparing ircd-hybrid-8/src/send.c (file contents):
Revision 1247 by michael, Sat Oct 1 07:54:24 2011 UTC vs.
Revision 1302 by michael, Wed Mar 21 17:48:54 2012 UTC

#	Line 43 | Line 43
43
44
45		struct Callback *iosend_cb = NULL;
46	–	struct Callback *iosendctrl_cb = NULL;
46		static unsigned int current_serial = 0;
47
48
#	Line 222 | Line 221 | sendq_unblocked(fde_t *fd, struct Client
221		}
222
223		/*
225	–	** slinkq_unblocked
226	–	**      Called when a server control socket is ready for writing.
227	–	*/
228	–	static void
229	–	slinkq_unblocked(fde_t *fd, struct Client *client_p)
230	–	{
231	–	ClearSlinkqBlocked(client_p);
232	–	send_queued_slink_write(client_p);
233	–	}
234	–
235	–	/*
224		** send_queued_write
225		**      This is called when there is a chance that some output would
226		**      be possible. This attempts to empty the send queue as far as
#	Line 309 | Line 297 | send_queued_write(struct Client *to)
297		}
298		}
299		}
312	–
313	–	/*
314	–	** send_queued_slink_write
315	–	**      This is called when there is a chance the some output would
316	–	**      be possible. This attempts to empty the send queue as far as
317	–	**      possible, and then if any data is left, a write is rescheduled.
318	–	*/
319	–	void
320	–	send_queued_slink_write(struct Client *to)
321	–	{
322	–	int retlen;
323	–
324	–	/*
325	–	** Once socket is marked dead, we cannot start writing to it,
326	–	** even if the error is removed...
327	–	*/
328	–	if (IsDead(to) || IsSlinkqBlocked(to))
329	–	return;  /* no use calling send() now */
330	–
331	–	/* Next, lets try to write some data */
332	–	if (to->localClient->slinkq != NULL)
333	–	{
334	–	retlen = send(to->localClient->ctrlfd.fd,
335	–	to->localClient->slinkq + to->localClient->slinkq_ofs,
336	–	to->localClient->slinkq_len, 0);
337	–	if (retlen < 0)
338	–	{
339	–	/* If we have a fatal error */
340	–	if (!ignoreErrno(errno))
341	–	{
342	–	dead_link_on_write(to, errno);
343	–	return;
344	–	}
345	–	}
346	–	else if (retlen == 0)
347	–	{
348	–	/* 0 bytes is an EOF .. */
349	–	dead_link_on_write(to, 0);
350	–	return;
351	–	}
352	–	else
353	–	{
354	–	execute_callback(iosendctrl_cb, to, retlen,
355	–	to->localClient->slinkq + to->localClient->slinkq_ofs);
356	–	to->localClient->slinkq_len -= retlen;
357	–
358	–	assert(to->localClient->slinkq_len >= 0);
359	–	if (to->localClient->slinkq_len)
360	–	to->localClient->slinkq_ofs += retlen;
361	–	else
362	–	{
363	–	to->localClient->slinkq_ofs = 0;
364	–	MyFree(to->localClient->slinkq);
365	–	to->localClient->slinkq = NULL;
366	–	}
367	–	}
368	–
369	–	/* Finally, if we have any more data, reschedule a write */
370	–	if (to->localClient->slinkq_len)
371	–	{
372	–	SetSlinkqBlocked(to);
373	–	comm_setselect(&to->localClient->ctrlfd, COMM_SELECT_WRITE,
374	–	(PF *)slinkq_unblocked, (void *)to, 0);
375	–	}
376	–	}
377	–	}
300
301		/* send_queued_all()
302		*

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