[ViewVC] Diff of: cvs/AnyEvent/lib/AnyEvent/Handle.pm

Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents):
Revision 1.151 by root, Thu Jul 16 04:20:23 2009 UTC vs.
Revision 1.182 by root, Thu Sep 3 12:35:01 2009 UTC

…		…
1	package AnyEvent::Handle;
2
3	no warnings;
4	use strict qw(subs vars);
5
6	use AnyEvent ();
7	use AnyEvent::Util qw(WSAEWOULDBLOCK);
8	use Scalar::Util ();
9	use Carp ();
10	use Fcntl ();
11	use Errno qw(EAGAIN EINTR);
12
13	=head1 NAME	1	=head1 NAME
14		2
15	AnyEvent::Handle - non-blocking I/O on file handles via AnyEvent	3	AnyEvent::Handle - non-blocking I/O on file handles via AnyEvent
16
17	=cut
18
19	our $VERSION = 4.82;
20		4
21	=head1 SYNOPSIS	5	=head1 SYNOPSIS
22		6
23	use AnyEvent;	7	use AnyEvent;
24	use AnyEvent::Handle;	8	use AnyEvent::Handle;
47	$cv->recv;	31	$cv->recv;
48		32
49	=head1 DESCRIPTION	33	=head1 DESCRIPTION
50		34
51	This module is a helper module to make it easier to do event-based I/O on	35	This module is a helper module to make it easier to do event-based I/O on
52	filehandles. For utility functions for doing non-blocking connects and accepts	36	filehandles.
53	on sockets see L<AnyEvent::Util>.
54		37
55	The L<AnyEvent::Intro> tutorial contains some well-documented	38	The L<AnyEvent::Intro> tutorial contains some well-documented
56	AnyEvent::Handle examples.	39	AnyEvent::Handle examples.
57		40
58	In the following, when the documentation refers to of "bytes" then this	41	In the following, when the documentation refers to of "bytes" then this
59	means characters. As sysread and syswrite are used for all I/O, their	42	means characters. As sysread and syswrite are used for all I/O, their
60	treatment of characters applies to this module as well.	43	treatment of characters applies to this module as well.
61		44
		45	At the very minimum, you should specify C<fh> or C<connect>, and the
		46	C<on_error> callback.
		47
62	All callbacks will be invoked with the handle object as their first	48	All callbacks will be invoked with the handle object as their first
63	argument.	49	argument.
64		50
		51	=cut
		52
		53	package AnyEvent::Handle;
		54
		55	use Scalar::Util ();
		56	use List::Util ();
		57	use Carp ();
		58	use Errno qw(EAGAIN EINTR);
		59
		60	use AnyEvent (); BEGIN { AnyEvent::common_sense }
		61	use AnyEvent::Util qw(WSAEWOULDBLOCK);
		62
		63	our $VERSION = $AnyEvent::VERSION;
		64
65	=head1 METHODS	65	=head1 METHODS
66		66
67	=over 4	67	=over 4
68		68
69	=item $handle = B<new> AnyEvent::TLS fh => $filehandle, key => value...	69	=item $handle = B<new> AnyEvent::TLS fh => $filehandle, key => value...
70		70
71	The constructor supports these arguments (all as C<< key => value >> pairs).	71	The constructor supports these arguments (all as C<< key => value >> pairs).
72		72
73	=over 4	73	=over 4
74		74
75	=item fh => $filehandle [MANDATORY]	75	=item fh => $filehandle [C<fh> or C<connect> MANDATORY]
76		76
77	The filehandle this L<AnyEvent::Handle> object will operate on.	77	The filehandle this L<AnyEvent::Handle> object will operate on.
78
79	NOTE: The filehandle will be set to non-blocking mode (using	78	NOTE: The filehandle will be set to non-blocking mode (using
80	C<AnyEvent::Util::fh_nonblocking>) by the constructor and needs to stay in	79	C<AnyEvent::Util::fh_nonblocking>) by the constructor and needs to stay in
81	that mode.	80	that mode.
		81
		82	=item connect => [$host, $service] [C<fh> or C<connect> MANDATORY]
		83
		84	Try to connect to the specified host and service (port), using
		85	C<AnyEvent::Socket::tcp_connect>. The C<$host> additionally becomes the
		86	default C<peername>.
		87
		88	You have to specify either this parameter, or C<fh>, above.
		89
		90	It is possible to push requests on the read and write queues, and modify
		91	properties of the stream, even while AnyEvent::Handle is connecting.
		92
		93	When this parameter is specified, then the C<on_prepare>,
		94	C<on_connect_error> and C<on_connect> callbacks will be called under the
		95	appropriate circumstances:
		96
		97	=over 4
		98
		99	=item on_prepare => $cb->($handle)
		100
		101	This (rarely used) callback is called before a new connection is
		102	attempted, but after the file handle has been created. It could be used to
		103	prepare the file handle with parameters required for the actual connect
		104	(as opposed to settings that can be changed when the connection is already
		105	established).
		106
		107	The return value of this callback should be the connect timeout value in
		108	seconds (or C<0>, or C<undef>, or the empty list, to indicate the default
		109	timeout is to be used).
		110
		111	=item on_connect => $cb->($handle, $host, $port, $retry->())
		112
		113	This callback is called when a connection has been successfully established.
		114
		115	The actual numeric host and port (the socket peername) are passed as
		116	parameters, together with a retry callback.
		117
		118	When, for some reason, the handle is not acceptable, then calling
		119	C<$retry> will continue with the next conenction target (in case of
		120	multi-homed hosts or SRV records there can be multiple connection
		121	endpoints). When it is called then the read and write queues, eof status,
		122	tls status and similar properties of the handle are being reset.
		123
		124	In most cases, ignoring the C<$retry> parameter is the way to go.
		125
		126	=item on_connect_error => $cb->($handle, $message)
		127
		128	This callback is called when the conenction could not be
		129	established. C<$!> will contain the relevant error code, and C<$message> a
		130	message describing it (usually the same as C<"$!">).
		131
		132	If this callback isn't specified, then C<on_error> will be called with a
		133	fatal error instead.
		134
		135	=back
		136
		137	=item on_error => $cb->($handle, $fatal, $message)
		138
		139	This is the error callback, which is called when, well, some error
		140	occured, such as not being able to resolve the hostname, failure to
		141	connect or a read error.
		142
		143	Some errors are fatal (which is indicated by C<$fatal> being true). On
		144	fatal errors the handle object will be destroyed (by a call to C<< ->
		145	destroy >>) after invoking the error callback (which means you are free to
		146	examine the handle object). Examples of fatal errors are an EOF condition
		147	with active (but unsatisifable) read watchers (C<EPIPE>) or I/O errors. In
		148	cases where the other side can close the connection at their will it is
		149	often easiest to not report C<EPIPE> errors in this callback.
		150
		151	AnyEvent::Handle tries to find an appropriate error code for you to check
		152	against, but in some cases (TLS errors), this does not work well. It is
		153	recommended to always output the C<$message> argument in human-readable
		154	error messages (it's usually the same as C<"$!">).
		155
		156	Non-fatal errors can be retried by simply returning, but it is recommended
		157	to simply ignore this parameter and instead abondon the handle object
		158	when this callback is invoked. Examples of non-fatal errors are timeouts
		159	C<ETIMEDOUT>) or badly-formatted data (C<EBADMSG>).
		160
		161	On callback entrance, the value of C<$!> contains the operating system
		162	error code (or C<ENOSPC>, C<EPIPE>, C<ETIMEDOUT>, C<EBADMSG> or
		163	C<EPROTO>).
		164
		165	While not mandatory, it is I<highly> recommended to set this callback, as
		166	you will not be notified of errors otherwise. The default simply calls
		167	C<croak>.
		168
		169	=item on_read => $cb->($handle)
		170
		171	This sets the default read callback, which is called when data arrives
		172	and no read request is in the queue (unlike read queue callbacks, this
		173	callback will only be called when at least one octet of data is in the
		174	read buffer).
		175
		176	To access (and remove data from) the read buffer, use the C<< ->rbuf >>
		177	method or access the C<< $handle->{rbuf} >> member directly. Note that you
		178	must not enlarge or modify the read buffer, you can only remove data at
		179	the beginning from it.
		180
		181	When an EOF condition is detected then AnyEvent::Handle will first try to
		182	feed all the remaining data to the queued callbacks and C<on_read> before
		183	calling the C<on_eof> callback. If no progress can be made, then a fatal
		184	error will be raised (with C<$!> set to C<EPIPE>).
		185
		186	Note that, unlike requests in the read queue, an C<on_read> callback
		187	doesn't mean you I<require> some data: if there is an EOF and there
		188	are outstanding read requests then an error will be flagged. With an
		189	C<on_read> callback, the C<on_eof> callback will be invoked.
82		190
83	=item on_eof => $cb->($handle)	191	=item on_eof => $cb->($handle)
84		192
85	Set the callback to be called when an end-of-file condition is detected,	193	Set the callback to be called when an end-of-file condition is detected,
86	i.e. in the case of a socket, when the other side has closed the	194	i.e. in the case of a socket, when the other side has closed the
…		…
94	down.	202	down.
95		203
96	If an EOF condition has been detected but no C<on_eof> callback has been	204	If an EOF condition has been detected but no C<on_eof> callback has been
97	set, then a fatal error will be raised with C<$!> set to <0>.	205	set, then a fatal error will be raised with C<$!> set to <0>.
98		206
99	=item on_error => $cb->($handle, $fatal, $message)
100
101	This is the error callback, which is called when, well, some error
102	occured, such as not being able to resolve the hostname, failure to
103	connect or a read error.
104
105	Some errors are fatal (which is indicated by C<$fatal> being true). On
106	fatal errors the handle object will be destroyed (by a call to C<< ->
107	destroy >>) after invoking the error callback (which means you are free to
108	examine the handle object). Examples of fatal errors are an EOF condition
109	with active (but unsatisifable) read watchers (C<EPIPE>) or I/O errors.
110
111	AnyEvent::Handle tries to find an appropriate error code for you to check
112	against, but in some cases (TLS errors), this does not work well. It is
113	recommended to always output the C<$message> argument in human-readable
114	error messages (it's usually the same as C<"$!">).
115
116	Non-fatal errors can be retried by simply returning, but it is recommended
117	to simply ignore this parameter and instead abondon the handle object
118	when this callback is invoked. Examples of non-fatal errors are timeouts
119	C<ETIMEDOUT>) or badly-formatted data (C<EBADMSG>).
120
121	On callback entrance, the value of C<$!> contains the operating system
122	error code (or C<ENOSPC>, C<EPIPE>, C<ETIMEDOUT>, C<EBADMSG> or
123	C<EPROTO>).
124
125	While not mandatory, it is I<highly> recommended to set this callback, as
126	you will not be notified of errors otherwise. The default simply calls
127	C<croak>.
128
129	=item on_read => $cb->($handle)
130
131	This sets the default read callback, which is called when data arrives
132	and no read request is in the queue (unlike read queue callbacks, this
133	callback will only be called when at least one octet of data is in the
134	read buffer).
135
136	To access (and remove data from) the read buffer, use the C<< ->rbuf >>
137	method or access the C<< $handle->{rbuf} >> member directly. Note that you
138	must not enlarge or modify the read buffer, you can only remove data at
139	the beginning from it.
140
141	When an EOF condition is detected then AnyEvent::Handle will first try to
142	feed all the remaining data to the queued callbacks and C<on_read> before
143	calling the C<on_eof> callback. If no progress can be made, then a fatal
144	error will be raised (with C<$!> set to C<EPIPE>).
145
146	Note that, unlike requests in the read queue, an C<on_read> callback
147	doesn't mean you I<require> some data: if there is an EOF and there
148	are outstanding read requests then an error will be flagged. With an
149	C<on_read> callback, the C<on_eof> callback will be invoked.
150
151	=item on_drain => $cb->($handle)	207	=item on_drain => $cb->($handle)
152		208
153	This sets the callback that is called when the write buffer becomes empty	209	This sets the callback that is called when the write buffer becomes empty
154	(or when the callback is set and the buffer is empty already).	210	(or when the callback is set and the buffer is empty already).
155		211
…		…
161	memory and push it into the queue, but instead only read more data from	217	memory and push it into the queue, but instead only read more data from
162	the file when the write queue becomes empty.	218	the file when the write queue becomes empty.
163		219
164	=item timeout => $fractional_seconds	220	=item timeout => $fractional_seconds
165		221
		222	=item rtimeout => $fractional_seconds
		223
		224	=item wtimeout => $fractional_seconds
		225
166	If non-zero, then this enables an "inactivity" timeout: whenever this many	226	If non-zero, then these enables an "inactivity" timeout: whenever this
167	seconds pass without a successful read or write on the underlying file	227	many seconds pass without a successful read or write on the underlying
168	handle, the C<on_timeout> callback will be invoked (and if that one is	228	file handle (or a call to C<timeout_reset>), the C<on_timeout> callback
169	missing, a non-fatal C<ETIMEDOUT> error will be raised).	229	will be invoked (and if that one is missing, a non-fatal C<ETIMEDOUT>
		230	error will be raised).
		231
		232	There are three variants of the timeouts that work fully independent
		233	of each other, for both read and write, just read, and just write:
		234	C<timeout>, C<rtimeout> and C<wtimeout>, with corresponding callbacks
		235	C<on_timeout>, C<on_rtimeout> and C<on_wtimeout>, and reset functions
		236	C<timeout_reset>, C<rtimeout_reset>, and C<wtimeout_reset>.
170		237
171	Note that timeout processing is also active when you currently do not have	238	Note that timeout processing is also active when you currently do not have
172	any outstanding read or write requests: If you plan to keep the connection	239	any outstanding read or write requests: If you plan to keep the connection
173	idle then you should disable the timout temporarily or ignore the timeout	240	idle then you should disable the timout temporarily or ignore the timeout
174	in the C<on_timeout> callback, in which case AnyEvent::Handle will simply	241	in the C<on_timeout> callback, in which case AnyEvent::Handle will simply
…		…
218	accomplishd by setting this option to a true value.	285	accomplishd by setting this option to a true value.
219		286
220	The default is your opertaing system's default behaviour (most likely	287	The default is your opertaing system's default behaviour (most likely
221	enabled), this option explicitly enables or disables it, if possible.	288	enabled), this option explicitly enables or disables it, if possible.
222		289
		290	=item keepalive => <boolean>
		291
		292	Enables (default disable) the SO_KEEPALIVE option on the stream socket:
		293	normally, TCP connections have no time-out once established, so TCP
		294	conenctions, once established, can stay alive forever even when the other
		295	side has long gone. TCP keepalives are a cheap way to take down long-lived
		296	TCP connections whent he other side becomes unreachable. While the default
		297	is OS-dependent, TCP keepalives usually kick in after around two hours,
		298	and, if the other side doesn't reply, take down the TCP connection some 10
		299	to 15 minutes later.
		300
		301	It is harmless to specify this option for file handles that do not support
		302	keepalives, and enabling it on connections that are potentially long-lived
		303	is usually a good idea.
		304
		305	=item oobinline => <boolean>
		306
		307	BSD majorly fucked up the implementation of TCP urgent data. The result
		308	is that almost no OS implements TCP according to the specs, and every OS
		309	implements it slightly differently.
		310
		311	If you want to handle TCP urgent data, then setting this flag gives you
		312	the most portable way of getting urgent data, by putting it into the
		313	stream.
		314
223	=item read_size => <bytes>	315	=item read_size => <bytes>
224		316
225	The default read block size (the amount of bytes this module will	317	The default read block size (the amount of bytes this module will
226	try to read during each loop iteration, which affects memory	318	try to read during each loop iteration, which affects memory
227	requirements). Default: C<8192>.	319	requirements). Default: C<8192>.
…		…
353		445
354	sub new {	446	sub new {
355	my $class = shift;	447	my $class = shift;
356	my $self = bless { @_ }, $class;	448	my $self = bless { @_ }, $class;
357		449
358	$self->{fh} or Carp::croak "mandatory argument fh is missing";	450	if ($self->{fh}) {
		451	$self->_start;
		452	return unless $self->{fh}; # could be gone by now
		453
		454	} elsif ($self->{connect}) {
		455	require AnyEvent::Socket;
		456
		457	$self->{peername} = $self->{connect}[0]
		458	unless exists $self->{peername};
		459
		460	$self->{_skip_drain_rbuf} = 1;
		461
		462	{
		463	Scalar::Util::weaken (my $self = $self);
		464
		465	$self->{_connect} =
		466	AnyEvent::Socket::tcp_connect (
		467	$self->{connect}[0],
		468	$self->{connect}[1],
		469	sub {
		470	my ($fh, $host, $port, $retry) = @_;
		471
		472	if ($fh) {
		473	$self->{fh} = $fh;
		474
		475	delete $self->{_skip_drain_rbuf};
		476	$self->_start;
		477
		478	$self->{on_connect}
		479	and $self->{on_connect}($self, $host, $port, sub {
		480	delete @$self{qw(fh _tw _rtw _wtw _ww _rw _eof _queue rbuf _wbuf tls _tls_rbuf _tls_wbuf)};
		481	$self->{_skip_drain_rbuf} = 1;
		482	&$retry;
		483	});
		484
		485	} else {
		486	if ($self->{on_connect_error}) {
		487	$self->{on_connect_error}($self, "$!");
		488	$self->destroy;
		489	} else {
		490	$self->_error ($!, 1);
		491	}
		492	}
		493	},
		494	sub {
		495	local $self->{fh} = $_[0];
		496
		497	$self->{on_prepare}
		498	? $self->{on_prepare}->($self)
		499	: ()
		500	}
		501	);
		502	}
		503
		504	} else {
		505	Carp::croak "AnyEvent::Handle: either an existing fh or the connect parameter must be specified";
		506	}
		507
		508	$self
		509	}
		510
		511	sub _start {
		512	my ($self) = @_;
359		513
360	AnyEvent::Util::fh_nonblocking $self->{fh}, 1;	514	AnyEvent::Util::fh_nonblocking $self->{fh}, 1;
361		515
		516	$self->{_activity} =
		517	$self->{_ractivity} =
362	$self->{_activity} = AnyEvent->now;	518	$self->{_wactivity} = AE::now;
363	$self->_timeout;
364		519
		520	$self->timeout (delete $self->{timeout} ) if $self->{timeout};
		521	$self->rtimeout (delete $self->{rtimeout} ) if $self->{rtimeout};
		522	$self->wtimeout (delete $self->{wtimeout} ) if $self->{wtimeout};
		523
365	$self->no_delay (delete $self->{no_delay}) if exists $self->{no_delay};	524	$self->no_delay (delete $self->{no_delay} ) if exists $self->{no_delay};
		525	$self->keepalive (delete $self->{keepalive}) if exists $self->{keepalive};
		526	$self->oobinline (delete $self->{oobinline}) if exists $self->{oobinline};
366		527
367	$self->starttls (delete $self->{tls}, delete $self->{tls_ctx})	528	$self->starttls (delete $self->{tls}, delete $self->{tls_ctx})
368	if $self->{tls};	529	if $self->{tls};
369		530
370	$self->on_drain (delete $self->{on_drain}) if $self->{on_drain};	531	$self->on_drain (delete $self->{on_drain}) if $self->{on_drain};
371		532
372	$self->start_read	533	$self->start_read
373	if $self->{on_read};	534	if $self->{on_read} \|\| @{ $self->{_queue} };
374		535
375	$self->{fh} && $self	536	$self->_drain_wbuf;
376	}	537	}
377
378	#sub _shutdown {
379	# my ($self) = @_;
380	#
381	# delete @$self{qw(_tw _rw _ww fh wbuf on_read _queue)};
382	# $self->{_eof} = 1; # tell starttls et. al to stop trying
383	#
384	# &_freetls;
385	#}
386		538
387	sub _error {	539	sub _error {
388	my ($self, $errno, $fatal, $message) = @_;	540	my ($self, $errno, $fatal, $message) = @_;
389		541
390	$! = $errno;	542	$! = $errno;
…		…
427	$_[0]{on_eof} = $_[1];	579	$_[0]{on_eof} = $_[1];
428	}	580	}
429		581
430	=item $handle->on_timeout ($cb)	582	=item $handle->on_timeout ($cb)
431		583
432	Replace the current C<on_timeout> callback, or disables the callback (but	584	=item $handle->on_rtimeout ($cb)
433	not the timeout) if C<$cb> = C<undef>. See the C<timeout> constructor
434	argument and method.
435		585
436	=cut	586	=item $handle->on_wtimeout ($cb)
437		587
438	sub on_timeout {	588	Replace the current C<on_timeout>, C<on_rtimeout> or C<on_wtimeout>
439	$_[0]{on_timeout} = $_[1];	589	callback, or disables the callback (but not the timeout) if C<$cb> =
440	}	590	C<undef>. See the C<timeout> constructor argument and method.
		591
		592	=cut
		593
		594	# see below
441		595
442	=item $handle->autocork ($boolean)	596	=item $handle->autocork ($boolean)
443		597
444	Enables or disables the current autocork behaviour (see C<autocork>	598	Enables or disables the current autocork behaviour (see C<autocork>
445	constructor argument). Changes will only take effect on the next write.	599	constructor argument). Changes will only take effect on the next write.
…		…
460	sub no_delay {	614	sub no_delay {
461	$_[0]{no_delay} = $_[1];	615	$_[0]{no_delay} = $_[1];
462		616
463	eval {	617	eval {
464	local $SIG{__DIE__};	618	local $SIG{__DIE__};
465	setsockopt $_[0]{fh}, &Socket::IPPROTO_TCP, &Socket::TCP_NODELAY, int $_[1];	619	setsockopt $_[0]{fh}, Socket::IPPROTO_TCP (), Socket::TCP_NODELAY (), int $_[1]
		620	if $_[0]{fh};
		621	};
		622	}
		623
		624	=item $handle->keepalive ($boolean)
		625
		626	Enables or disables the C<keepalive> setting (see constructor argument of
		627	the same name for details).
		628
		629	=cut
		630
		631	sub keepalive {
		632	$_[0]{keepalive} = $_[1];
		633
		634	eval {
		635	local $SIG{__DIE__};
		636	setsockopt $_[0]{fh}, Socket::SOL_SOCKET (), Socket::SO_KEEPALIVE (), int $_[1]
		637	if $_[0]{fh};
		638	};
		639	}
		640
		641	=item $handle->oobinline ($boolean)
		642
		643	Enables or disables the C<oobinline> setting (see constructor argument of
		644	the same name for details).
		645
		646	=cut
		647
		648	sub oobinline {
		649	$_[0]{oobinline} = $_[1];
		650
		651	eval {
		652	local $SIG{__DIE__};
		653	setsockopt $_[0]{fh}, Socket::SOL_SOCKET (), Socket::SO_OOBINLINE (), int $_[1]
		654	if $_[0]{fh};
		655	};
		656	}
		657
		658	=item $handle->keepalive ($boolean)
		659
		660	Enables or disables the C<keepalive> setting (see constructor argument of
		661	the same name for details).
		662
		663	=cut
		664
		665	sub keepalive {
		666	$_[0]{keepalive} = $_[1];
		667
		668	eval {
		669	local $SIG{__DIE__};
		670	setsockopt $_[0]{fh}, Socket::SOL_SOCKET (), Socket::SO_KEEPALIVE (), int $_[1]
		671	if $_[0]{fh};
466	};	672	};
467	}	673	}
468		674
469	=item $handle->on_starttls ($cb)	675	=item $handle->on_starttls ($cb)
470		676
…		…
484		690
485	sub on_starttls {	691	sub on_starttls {
486	$_[0]{on_stoptls} = $_[1];	692	$_[0]{on_stoptls} = $_[1];
487	}	693	}
488		694
		695	=item $handle->rbuf_max ($max_octets)
		696
		697	Configures the C<rbuf_max> setting (C<undef> disables it).
		698
		699	=cut
		700
		701	sub rbuf_max {
		702	$_[0]{rbuf_max} = $_[1];
		703	}
		704
489	#############################################################################	705	#############################################################################
490		706
491	=item $handle->timeout ($seconds)	707	=item $handle->timeout ($seconds)
492		708
		709	=item $handle->rtimeout ($seconds)
		710
		711	=item $handle->wtimeout ($seconds)
		712
493	Configures (or disables) the inactivity timeout.	713	Configures (or disables) the inactivity timeout.
494		714
495	=cut	715	=item $handle->timeout_reset
496		716
497	sub timeout {	717	=item $handle->rtimeout_reset
		718
		719	=item $handle->wtimeout_reset
		720
		721	Reset the activity timeout, as if data was received or sent.
		722
		723	These methods are cheap to call.
		724
		725	=cut
		726
		727	for my $dir ("", "r", "w") {
		728	my $timeout = "${dir}timeout";
		729	my $tw = "_${dir}tw";
		730	my $on_timeout = "on_${dir}timeout";
		731	my $activity = "_${dir}activity";
		732	my $cb;
		733
		734	*$on_timeout = sub {
		735	$_[0]{$on_timeout} = $_[1];
		736	};
		737
		738	*$timeout = sub {
498	my ($self, $timeout) = @_;	739	my ($self, $new_value) = @_;
499		740
500	$self->{timeout} = $timeout;	741	$self->{$timeout} = $new_value;
501	$self->_timeout;	742	delete $self->{$tw}; &$cb;
502	}	743	};
503		744
		745	*{"${dir}timeout_reset"} = sub {
		746	$_[0]{$activity} = AE::now;
		747	};
		748
		749	# main workhorse:
504	# reset the timeout watcher, as neccessary	750	# reset the timeout watcher, as neccessary
505	# also check for time-outs	751	# also check for time-outs
506	sub _timeout {	752	$cb = sub {
507	my ($self) = @_;	753	my ($self) = @_;
508		754
509	if ($self->{timeout}) {	755	if ($self->{$timeout} && $self->{fh}) {
510	my $NOW = AnyEvent->now;	756	my $NOW = AE::now;
511		757
512	# when would the timeout trigger?	758	# when would the timeout trigger?
513	my $after = $self->{_activity} + $self->{timeout} - $NOW;	759	my $after = $self->{$activity} + $self->{$timeout} - $NOW;
514		760
515	# now or in the past already?	761	# now or in the past already?
516	if ($after <= 0) {	762	if ($after <= 0) {
517	$self->{_activity} = $NOW;	763	$self->{$activity} = $NOW;
518		764
519	if ($self->{on_timeout}) {	765	if ($self->{$on_timeout}) {
520	$self->{on_timeout}($self);	766	$self->{$on_timeout}($self);
521	} else {	767	} else {
522	$self->_error (Errno::ETIMEDOUT);	768	$self->_error (Errno::ETIMEDOUT);
		769	}
		770
		771	# callback could have changed timeout value, optimise
		772	return unless $self->{$timeout};
		773
		774	# calculate new after
		775	$after = $self->{$timeout};
523	}	776	}
524		777
525	# callback could have changed timeout value, optimise	778	Scalar::Util::weaken $self;
526	return unless $self->{timeout};	779	return unless $self; # ->error could have destroyed $self
527		780
528	# calculate new after	781	$self->{$tw} \|\|= AE::timer $after, 0, sub {
529	$after = $self->{timeout};	782	delete $self->{$tw};
		783	$cb->($self);
		784	};
		785	} else {
		786	delete $self->{$tw};
530	}	787	}
531
532	Scalar::Util::weaken $self;
533	return unless $self; # ->error could have destroyed $self
534
535	$self->{_tw} \|\|= AnyEvent->timer (after => $after, cb => sub {
536	delete $self->{_tw};
537	$self->_timeout;
538	});
539	} else {
540	delete $self->{_tw};
541	}	788	}
542	}	789	}
543		790
544	#############################################################################	791	#############################################################################
545		792
…		…
593	my $len = syswrite $self->{fh}, $self->{wbuf};	840	my $len = syswrite $self->{fh}, $self->{wbuf};
594		841
595	if (defined $len) {	842	if (defined $len) {
596	substr $self->{wbuf}, 0, $len, "";	843	substr $self->{wbuf}, 0, $len, "";
597		844
598	$self->{_activity} = AnyEvent->now;	845	$self->{_activity} = $self->{_wactivity} = AE::now;
599		846
600	$self->{on_drain}($self)	847	$self->{on_drain}($self)
601	if $self->{low_water_mark} >= (length $self->{wbuf}) + (length $self->{_tls_wbuf})	848	if $self->{low_water_mark} >= (length $self->{wbuf}) + (length $self->{_tls_wbuf})
602	&& $self->{on_drain};	849	&& $self->{on_drain};
603		850
…		…
609		856
610	# try to write data immediately	857	# try to write data immediately
611	$cb->() unless $self->{autocork};	858	$cb->() unless $self->{autocork};
612		859
613	# if still data left in wbuf, we need to poll	860	# if still data left in wbuf, we need to poll
614	$self->{_ww} = AnyEvent->io (fh => $self->{fh}, poll => "w", cb => $cb)	861	$self->{_ww} = AE::io $self->{fh}, 1, $cb
615	if length $self->{wbuf};	862	if length $self->{wbuf};
616	};	863	};
617	}	864	}
618		865
619	our %WH;	866	our %WH;
…		…
632	->($self, @_);	879	->($self, @_);
633	}	880	}
634		881
635	if ($self->{tls}) {	882	if ($self->{tls}) {
636	$self->{_tls_wbuf} .= $_[0];	883	$self->{_tls_wbuf} .= $_[0];
637		884	&_dotls ($self) if $self->{fh};
638	&_dotls ($self);
639	} else {	885	} else {
640	$self->{wbuf} .= $_[0];	886	$self->{wbuf} .= $_[0];
641	$self->_drain_wbuf;	887	$self->_drain_wbuf if $self->{fh};
642	}	888	}
643	}	889	}
644		890
645	=item $handle->push_write (type => @args)	891	=item $handle->push_write (type => @args)
646		892
…		…
710	Other languages could read single lines terminated by a newline and pass	956	Other languages could read single lines terminated by a newline and pass
711	this line into their JSON decoder of choice.	957	this line into their JSON decoder of choice.
712		958
713	=cut	959	=cut
714		960
		961	sub json_coder() {
		962	eval { require JSON::XS; JSON::XS->new->utf8 }
		963	\|\| do { require JSON; JSON->new->utf8 }
		964	}
		965
715	register_write_type json => sub {	966	register_write_type json => sub {
716	my ($self, $ref) = @_;	967	my ($self, $ref) = @_;
717		968
718	require JSON;	969	my $json = $self->{json} \|\|= json_coder;
719		970
720	$self->{json} ? $self->{json}->encode ($ref)	971	$json->encode ($ref)
721	: JSON::encode_json ($ref)
722	};	972	};
723		973
724	=item storable => $reference	974	=item storable => $reference
725		975
726	Freezes the given reference using L<Storable> and writes it to the	976	Freezes the given reference using L<Storable> and writes it to the
…		…
863	=cut	1113	=cut
864		1114
865	sub _drain_rbuf {	1115	sub _drain_rbuf {
866	my ($self) = @_;	1116	my ($self) = @_;
867		1117
		1118	# avoid recursion
		1119	return if $self->{_skip_drain_rbuf};
868	local $self->{_in_drain} = 1;	1120	local $self->{_skip_drain_rbuf} = 1;
869
870	if (
871	defined $self->{rbuf_max}
872	&& $self->{rbuf_max} < length $self->{rbuf}
873	) {
874	$self->_error (Errno::ENOSPC, 1), return;
875	}
876		1121
877	while () {	1122	while () {
878	# we need to use a separate tls read buffer, as we must not receive data while	1123	# we need to use a separate tls read buffer, as we must not receive data while
879	# we are draining the buffer, and this can only happen with TLS.	1124	# we are draining the buffer, and this can only happen with TLS.
880	$self->{rbuf} .= delete $self->{_tls_rbuf} if exists $self->{_tls_rbuf};	1125	$self->{rbuf} .= delete $self->{_tls_rbuf}
		1126	if exists $self->{_tls_rbuf};
881		1127
882	my $len = length $self->{rbuf};	1128	my $len = length $self->{rbuf};
883		1129
884	if (my $cb = shift @{ $self->{_queue} }) {	1130	if (my $cb = shift @{ $self->{_queue} }) {
885	unless ($cb->($self)) {	1131	unless ($cb->($self)) {
886	if ($self->{_eof}) {	1132	# no progress can be made
887	# no progress can be made (not enough data and no data forthcoming)	1133	# (not enough data and no data forthcoming)
888	$self->_error (Errno::EPIPE, 1), return;	1134	$self->_error (Errno::EPIPE, 1), return
889	}	1135	if $self->{_eof};
890		1136
891	unshift @{ $self->{_queue} }, $cb;	1137	unshift @{ $self->{_queue} }, $cb;
892	last;	1138	last;
893	}	1139	}
894	} elsif ($self->{on_read}) {	1140	} elsif ($self->{on_read}) {
…		…
914	last;	1160	last;
915	}	1161	}
916	}	1162	}
917		1163
918	if ($self->{_eof}) {	1164	if ($self->{_eof}) {
919	if ($self->{on_eof}) {	1165	$self->{on_eof}
920	$self->{on_eof}($self)	1166	? $self->{on_eof}($self)
921	} else {
922	$self->_error (0, 1, "Unexpected end-of-file");	1167	: $self->_error (0, 1, "Unexpected end-of-file");
923	}	1168
		1169	return;
		1170	}
		1171
		1172	if (
		1173	defined $self->{rbuf_max}
		1174	&& $self->{rbuf_max} < length $self->{rbuf}
		1175	) {
		1176	$self->_error (Errno::ENOSPC, 1), return;
924	}	1177	}
925		1178
926	# may need to restart read watcher	1179	# may need to restart read watcher
927	unless ($self->{_rw}) {	1180	unless ($self->{_rw}) {
928	$self->start_read	1181	$self->start_read
…		…
940		1193
941	sub on_read {	1194	sub on_read {
942	my ($self, $cb) = @_;	1195	my ($self, $cb) = @_;
943		1196
944	$self->{on_read} = $cb;	1197	$self->{on_read} = $cb;
945	$self->_drain_rbuf if $cb && !$self->{_in_drain};	1198	$self->_drain_rbuf if $cb;
946	}	1199	}
947		1200
948	=item $handle->rbuf	1201	=item $handle->rbuf
949		1202
950	Returns the read buffer (as a modifiable lvalue).	1203	Returns the read buffer (as a modifiable lvalue).
…		…
1002	$cb = ($RH{$type} or Carp::croak "unsupported type passed to AnyEvent::Handle::push_read")	1255	$cb = ($RH{$type} or Carp::croak "unsupported type passed to AnyEvent::Handle::push_read")
1003	->($self, $cb, @_);	1256	->($self, $cb, @_);
1004	}	1257	}
1005		1258
1006	push @{ $self->{_queue} }, $cb;	1259	push @{ $self->{_queue} }, $cb;
1007	$self->_drain_rbuf unless $self->{_in_drain};	1260	$self->_drain_rbuf;
1008	}	1261	}
1009		1262
1010	sub unshift_read {	1263	sub unshift_read {
1011	my $self = shift;	1264	my $self = shift;
1012	my $cb = pop;	1265	my $cb = pop;
…		…
1016		1269
1017	$cb = ($RH{$type} or Carp::croak "unsupported type passed to AnyEvent::Handle::unshift_read")	1270	$cb = ($RH{$type} or Carp::croak "unsupported type passed to AnyEvent::Handle::unshift_read")
1018	->($self, $cb, @_);	1271	->($self, $cb, @_);
1019	}	1272	}
1020		1273
1021
1022	unshift @{ $self->{_queue} }, $cb;	1274	unshift @{ $self->{_queue} }, $cb;
1023	$self->_drain_rbuf unless $self->{_in_drain};	1275	$self->_drain_rbuf;
1024	}	1276	}
1025		1277
1026	=item $handle->push_read (type => @args, $cb)	1278	=item $handle->push_read (type => @args, $cb)
1027		1279
1028	=item $handle->unshift_read (type => @args, $cb)	1280	=item $handle->unshift_read (type => @args, $cb)
…		…
1277	=cut	1529	=cut
1278		1530
1279	register_read_type json => sub {	1531	register_read_type json => sub {
1280	my ($self, $cb) = @_;	1532	my ($self, $cb) = @_;
1281		1533
1282	my $json = $self->{json} \|\|=	1534	my $json = $self->{json} \|\|= json_coder;
1283	eval { require JSON::XS; JSON::XS->new->utf8 }
1284	\|\| do { require JSON; JSON->new->utf8 };
1285		1535
1286	my $data;	1536	my $data;
1287	my $rbuf = \$self->{rbuf};	1537	my $rbuf = \$self->{rbuf};
1288		1538
1289	sub {	1539	sub {
…		…
1409	my ($self) = @_;	1659	my ($self) = @_;
1410		1660
1411	unless ($self->{_rw} \|\| $self->{_eof}) {	1661	unless ($self->{_rw} \|\| $self->{_eof}) {
1412	Scalar::Util::weaken $self;	1662	Scalar::Util::weaken $self;
1413		1663
1414	$self->{_rw} = AnyEvent->io (fh => $self->{fh}, poll => "r", cb => sub {	1664	$self->{_rw} = AE::io $self->{fh}, 0, sub {
1415	my $rbuf = \($self->{tls} ? my $buf : $self->{rbuf});	1665	my $rbuf = \($self->{tls} ? my $buf : $self->{rbuf});
1416	my $len = sysread $self->{fh}, $$rbuf, $self->{read_size} \|\| 8192, length $$rbuf;	1666	my $len = sysread $self->{fh}, $$rbuf, $self->{read_size} \|\| 8192, length $$rbuf;
1417		1667
1418	if ($len > 0) {	1668	if ($len > 0) {
1419	$self->{_activity} = AnyEvent->now;	1669	$self->{_activity} = $self->{_ractivity} = AE::now;
1420		1670
1421	if ($self->{tls}) {	1671	if ($self->{tls}) {
1422	Net::SSLeay::BIO_write ($self->{_rbio}, $$rbuf);	1672	Net::SSLeay::BIO_write ($self->{_rbio}, $$rbuf);
1423		1673
1424	&_dotls ($self);	1674	&_dotls ($self);
1425	} else {	1675	} else {
1426	$self->_drain_rbuf unless $self->{_in_drain};	1676	$self->_drain_rbuf;
1427	}	1677	}
1428		1678
1429	} elsif (defined $len) {	1679	} elsif (defined $len) {
1430	delete $self->{_rw};	1680	delete $self->{_rw};
1431	$self->{_eof} = 1;	1681	$self->{_eof} = 1;
1432	$self->_drain_rbuf unless $self->{_in_drain};	1682	$self->_drain_rbuf;
1433		1683
1434	} elsif ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK) {	1684	} elsif ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK) {
1435	return $self->_error ($!, 1);	1685	return $self->_error ($!, 1);
1436	}	1686	}
1437	});	1687	};
1438	}	1688	}
1439	}	1689	}
1440		1690
1441	our $ERROR_SYSCALL;	1691	our $ERROR_SYSCALL;
1442	our $ERROR_WANT_READ;	1692	our $ERROR_WANT_READ;
…		…
1497	$self->{_eof} = 1;	1747	$self->{_eof} = 1;
1498	}	1748	}
1499	}	1749	}
1500		1750
1501	$self->{_tls_rbuf} .= $tmp;	1751	$self->{_tls_rbuf} .= $tmp;
1502	$self->_drain_rbuf unless $self->{_in_drain};	1752	$self->_drain_rbuf;
1503	$self->{tls} or return; # tls session might have gone away in callback	1753	$self->{tls} or return; # tls session might have gone away in callback
1504	}	1754	}
1505		1755
1506	$tmp = Net::SSLeay::get_error ($self->{tls}, -1);	1756	$tmp = Net::SSLeay::get_error ($self->{tls}, -1);
1507	return $self->_tls_error ($tmp)	1757	return $self->_tls_error ($tmp)
…		…
1522		1772
1523	Instead of starting TLS negotiation immediately when the AnyEvent::Handle	1773	Instead of starting TLS negotiation immediately when the AnyEvent::Handle
1524	object is created, you can also do that at a later time by calling	1774	object is created, you can also do that at a later time by calling
1525	C<starttls>.	1775	C<starttls>.
1526		1776
		1777	Starting TLS is currently an asynchronous operation - when you push some
		1778	write data and then call C<< ->starttls >> then TLS negotiation will start
		1779	immediately, after which the queued write data is then sent.
		1780
1527	The first argument is the same as the C<tls> constructor argument (either	1781	The first argument is the same as the C<tls> constructor argument (either
1528	C<"connect">, C<"accept"> or an existing Net::SSLeay object).	1782	C<"connect">, C<"accept"> or an existing Net::SSLeay object).
1529		1783
1530	The second argument is the optional C<AnyEvent::TLS> object that is used	1784	The second argument is the optional C<AnyEvent::TLS> object that is used
1531	when AnyEvent::Handle has to create its own TLS connection object, or	1785	when AnyEvent::Handle has to create its own TLS connection object, or
…		…
1535	The TLS connection object will end up in C<< $handle->{tls} >>, the TLS	1789	The TLS connection object will end up in C<< $handle->{tls} >>, the TLS
1536	context in C<< $handle->{tls_ctx} >> after this call and can be used or	1790	context in C<< $handle->{tls_ctx} >> after this call and can be used or
1537	changed to your liking. Note that the handshake might have already started	1791	changed to your liking. Note that the handshake might have already started
1538	when this function returns.	1792	when this function returns.
1539		1793
1540	If it an error to start a TLS handshake more than once per	1794	Due to bugs in OpenSSL, it might or might not be possible to do multiple
1541	AnyEvent::Handle object (this is due to bugs in OpenSSL).	1795	handshakes on the same stream. Best do not attempt to use the stream after
		1796	stopping TLS.
1542		1797
1543	=cut	1798	=cut
1544		1799
1545	our %TLS_CACHE; #TODO not yet documented, should we?	1800	our %TLS_CACHE; #TODO not yet documented, should we?
1546		1801
1547	sub starttls {	1802	sub starttls {
1548	my ($self, $ssl, $ctx) = @_;	1803	my ($self, $tls, $ctx) = @_;
		1804
		1805	Carp::croak "It is an error to call starttls on an AnyEvent::Handle object while TLS is already active, caught"
		1806	if $self->{tls};
		1807
		1808	$self->{tls} = $tls;
		1809	$self->{tls_ctx} = $ctx if @_ > 2;
		1810
		1811	return unless $self->{fh};
1549		1812
1550	require Net::SSLeay;	1813	require Net::SSLeay;
1551
1552	Carp::croak "it is an error to call starttls more than once on an AnyEvent::Handle object"
1553	if $self->{tls};
1554		1814
1555	$ERROR_SYSCALL = Net::SSLeay::ERROR_SYSCALL ();	1815	$ERROR_SYSCALL = Net::SSLeay::ERROR_SYSCALL ();
1556	$ERROR_WANT_READ = Net::SSLeay::ERROR_WANT_READ ();	1816	$ERROR_WANT_READ = Net::SSLeay::ERROR_WANT_READ ();
1557		1817
		1818	$tls = delete $self->{tls};
1558	$ctx \|\|= $self->{tls_ctx};	1819	$ctx = $self->{tls_ctx};
		1820
		1821	local $Carp::CarpLevel = 1; # skip ourselves when creating a new context or session
1559		1822
1560	if ("HASH" eq ref $ctx) {	1823	if ("HASH" eq ref $ctx) {
1561	require AnyEvent::TLS;	1824	require AnyEvent::TLS;
1562
1563	local $Carp::CarpLevel = 1; # skip ourselves when creating a new context
1564		1825
1565	if ($ctx->{cache}) {	1826	if ($ctx->{cache}) {
1566	my $key = $ctx+0;	1827	my $key = $ctx+0;
1567	$ctx = $TLS_CACHE{$key} \|\|= new AnyEvent::TLS %$ctx;	1828	$ctx = $TLS_CACHE{$key} \|\|= new AnyEvent::TLS %$ctx;
1568	} else {	1829	} else {
1569	$ctx = new AnyEvent::TLS %$ctx;	1830	$ctx = new AnyEvent::TLS %$ctx;
1570	}	1831	}
1571	}	1832	}
1572		1833
1573	$self->{tls_ctx} = $ctx \|\| TLS_CTX ();	1834	$self->{tls_ctx} = $ctx \|\| TLS_CTX ();
1574	$self->{tls} = $ssl = $self->{tls_ctx}->_get_session ($ssl, $self, $self->{peername});	1835	$self->{tls} = $tls = $self->{tls_ctx}->_get_session ($tls, $self, $self->{peername});
1575		1836
1576	# basically, this is deep magic (because SSL_read should have the same issues)	1837	# basically, this is deep magic (because SSL_read should have the same issues)
1577	# but the openssl maintainers basically said: "trust us, it just works".	1838	# but the openssl maintainers basically said: "trust us, it just works".
1578	# (unfortunately, we have to hardcode constants because the abysmally misdesigned	1839	# (unfortunately, we have to hardcode constants because the abysmally misdesigned
1579	# and mismaintained ssleay-module doesn't even offer them).	1840	# and mismaintained ssleay-module doesn't even offer them).
…		…
1586	# and we drive openssl fully in blocking mode here. Or maybe we don't - openssl seems to	1847	# and we drive openssl fully in blocking mode here. Or maybe we don't - openssl seems to
1587	# have identity issues in that area.	1848	# have identity issues in that area.
1588	# Net::SSLeay::CTX_set_mode ($ssl,	1849	# Net::SSLeay::CTX_set_mode ($ssl,
1589	# (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE () } \|\| 1)	1850	# (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE () } \|\| 1)
1590	# \| (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER () } \|\| 2));	1851	# \| (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER () } \|\| 2));
1591	Net::SSLeay::CTX_set_mode ($ssl, 1\|2);	1852	Net::SSLeay::CTX_set_mode ($tls, 1\|2);
1592		1853
1593	$self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());	1854	$self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
1594	$self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());	1855	$self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
1595		1856
		1857	Net::SSLeay::BIO_write ($self->{_rbio}, delete $self->{rbuf});
		1858
1596	Net::SSLeay::set_bio ($ssl, $self->{_rbio}, $self->{_wbio});	1859	Net::SSLeay::set_bio ($tls, $self->{_rbio}, $self->{_wbio});
1597		1860
1598	$self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) }	1861	$self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) }
1599	if $self->{on_starttls};	1862	if $self->{on_starttls};
1600		1863
1601	&_dotls; # need to trigger the initial handshake	1864	&_dotls; # need to trigger the initial handshake
…		…
1604		1867
1605	=item $handle->stoptls	1868	=item $handle->stoptls
1606		1869
1607	Shuts down the SSL connection - this makes a proper EOF handshake by	1870	Shuts down the SSL connection - this makes a proper EOF handshake by
1608	sending a close notify to the other side, but since OpenSSL doesn't	1871	sending a close notify to the other side, but since OpenSSL doesn't
1609	support non-blocking shut downs, it is not possible to re-use the stream	1872	support non-blocking shut downs, it is not guarenteed that you can re-use
1610	afterwards.	1873	the stream afterwards.
1611		1874
1612	=cut	1875	=cut
1613		1876
1614	sub stoptls {	1877	sub stoptls {
1615	my ($self) = @_;	1878	my ($self) = @_;
…		…
1628	sub _freetls {	1891	sub _freetls {
1629	my ($self) = @_;	1892	my ($self) = @_;
1630		1893
1631	return unless $self->{tls};	1894	return unless $self->{tls};
1632		1895
1633	$self->{tls_ctx}->_put_session (delete $self->{tls});	1896	$self->{tls_ctx}->_put_session (delete $self->{tls})
		1897	if $self->{tls} > 0;
1634		1898
1635	delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};	1899	delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};
1636	}	1900	}
1637		1901
1638	sub DESTROY {	1902	sub DESTROY {
…		…
1640		1904
1641	&_freetls;	1905	&_freetls;
1642		1906
1643	my $linger = exists $self->{linger} ? $self->{linger} : 3600;	1907	my $linger = exists $self->{linger} ? $self->{linger} : 3600;
1644		1908
1645	if ($linger && length $self->{wbuf}) {	1909	if ($linger && length $self->{wbuf} && $self->{fh}) {
1646	my $fh = delete $self->{fh};	1910	my $fh = delete $self->{fh};
1647	my $wbuf = delete $self->{wbuf};	1911	my $wbuf = delete $self->{wbuf};
1648		1912
1649	my @linger;	1913	my @linger;
1650		1914
1651	push @linger, AnyEvent->io (fh => $fh, poll => "w", cb => sub {	1915	push @linger, AE::io $fh, 1, sub {
1652	my $len = syswrite $fh, $wbuf, length $wbuf;	1916	my $len = syswrite $fh, $wbuf, length $wbuf;
1653		1917
1654	if ($len > 0) {	1918	if ($len > 0) {
1655	substr $wbuf, 0, $len, "";	1919	substr $wbuf, 0, $len, "";
1656	} else {	1920	} else {
1657	@linger = (); # end	1921	@linger = (); # end
1658	}	1922	}
1659	});	1923	};
1660	push @linger, AnyEvent->timer (after => $linger, cb => sub {	1924	push @linger, AE::timer $linger, 0, sub {
1661	@linger = ();	1925	@linger = ();
1662	});	1926	};
1663	}	1927	}
1664	}	1928	}
1665		1929
1666	=item $handle->destroy	1930	=item $handle->destroy
1667		1931
1668	Shuts down the handle object as much as possible - this call ensures that	1932	Shuts down the handle object as much as possible - this call ensures that
1669	no further callbacks will be invoked and as many resources as possible	1933	no further callbacks will be invoked and as many resources as possible
1670	will be freed. You must not call any methods on the object afterwards.	1934	will be freed. Any method you will call on the handle object after
		1935	destroying it in this way will be silently ignored (and it will return the
		1936	empty list).
1671		1937
1672	Normally, you can just "forget" any references to an AnyEvent::Handle	1938	Normally, you can just "forget" any references to an AnyEvent::Handle
1673	object and it will simply shut down. This works in fatal error and EOF	1939	object and it will simply shut down. This works in fatal error and EOF
1674	callbacks, as well as code outside. It does I<NOT> work in a read or write	1940	callbacks, as well as code outside. It does I<NOT> work in a read or write
1675	callback, so when you want to destroy the AnyEvent::Handle object from	1941	callback, so when you want to destroy the AnyEvent::Handle object from
…		…
1689	sub destroy {	1955	sub destroy {
1690	my ($self) = @_;	1956	my ($self) = @_;
1691		1957
1692	$self->DESTROY;	1958	$self->DESTROY;
1693	%$self = ();	1959	%$self = ();
		1960	bless $self, "AnyEvent::Handle::destroyed";
		1961	}
		1962
		1963	sub AnyEvent::Handle::destroyed::AUTOLOAD {
		1964	#nop
1694	}	1965	}
1695		1966
1696	=item AnyEvent::Handle::TLS_CTX	1967	=item AnyEvent::Handle::TLS_CTX
1697		1968
1698	This function creates and returns the AnyEvent::TLS object used by default	1969	This function creates and returns the AnyEvent::TLS object used by default

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Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents): Revision 1.151 by root, Thu Jul 16 04:20:23 2009 UTC vs. Revision 1.182 by root, Thu Sep 3 12:35:01 2009 UTC

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Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents):
Revision 1.151 by root, Thu Jul 16 04:20:23 2009 UTC vs.
Revision 1.182 by root, Thu Sep 3 12:35:01 2009 UTC