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

Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents):
Revision 1.149 by root, Thu Jul 16 03:48:33 2009 UTC vs.
Revision 1.177 by root, Sun Aug 9 00:24:35 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;
26	my $cv = AnyEvent->condvar;	10	my $cv = AnyEvent->condvar;
27		11
28	my $hdl; $hdl = new AnyEvent::Handle	12	my $hdl; $hdl = new AnyEvent::Handle
29	fh => \*STDIN,	13	fh => \*STDIN,
30	on_error => sub {	14	on_error => sub {
		15	my ($hdl, $fatal, $msg) = @_;
31	warn "got error $_[2]\n";	16	warn "got error $msg\n";
		17	$hdl->destroy;
32	$cv->send;	18	$cv->send;
33	);	19	);
34		20
35	# send some request line	21	# send some request line
36	$hdl->push_write ("getinfo\015\012");	22	$hdl->push_write ("getinfo\015\012");
…		…
45	$cv->recv;	31	$cv->recv;
46		32
47	=head1 DESCRIPTION	33	=head1 DESCRIPTION
48		34
49	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
50	filehandles. For utility functions for doing non-blocking connects and accepts	36	filehandles.
51	on sockets see L<AnyEvent::Util>.
52		37
53	The L<AnyEvent::Intro> tutorial contains some well-documented	38	The L<AnyEvent::Intro> tutorial contains some well-documented
54	AnyEvent::Handle examples.	39	AnyEvent::Handle examples.
55		40
56	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
57	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
58	treatment of characters applies to this module as well.	43	treatment of characters applies to this module as well.
59		44
		45	At the very minimum, you should specify C<fh> or C<connect>, and the
		46	C<on_error> callback.
		47
60	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
61	argument.	49	argument.
62		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
63	=head1 METHODS	65	=head1 METHODS
64		66
65	=over 4	67	=over 4
66		68
67	=item $handle = B<new> AnyEvent::TLS fh => $filehandle, key => value...	69	=item $handle = B<new> AnyEvent::TLS fh => $filehandle, key => value...
68		70
69	The constructor supports these arguments (all as C<< key => value >> pairs).	71	The constructor supports these arguments (all as C<< key => value >> pairs).
70		72
71	=over 4	73	=over 4
72		74
73	=item fh => $filehandle [MANDATORY]	75	=item fh => $filehandle [C<fh> or C<connect> MANDATORY]
74		76
75	The filehandle this L<AnyEvent::Handle> object will operate on.	77	The filehandle this L<AnyEvent::Handle> object will operate on.
76
77	NOTE: The filehandle will be set to non-blocking mode (using	78	NOTE: The filehandle will be set to non-blocking mode (using
78	C<AnyEvent::Util::fh_nonblocking>) by the constructor and needs to stay in	79	C<AnyEvent::Util::fh_nonblocking>) by the constructor and needs to stay in
79	that mode.	80	that mode.
80		81
		82	=item connect => [$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.
		190
81	=item on_eof => $cb->($handle)	191	=item on_eof => $cb->($handle)
82		192
83	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,
84	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
85	connection cleanly.	195	connection cleanly, and there are no outstanding read requests in the
		196	queue (if there are read requests, then an EOF counts as an unexpected
		197	connection close and will be flagged as an error).
86		198
87	For sockets, this just means that the other side has stopped sending data,	199	For sockets, this just means that the other side has stopped sending data,
88	you can still try to write data, and, in fact, one can return from the EOF	200	you can still try to write data, and, in fact, one can return from the EOF
89	callback and continue writing data, as only the read part has been shut	201	callback and continue writing data, as only the read part has been shut
90	down.	202	down.
91		203
92	While not mandatory, it is I<highly> recommended to set an EOF callback,
93	otherwise you might end up with a closed socket while you are still
94	waiting for data.
95
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
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		206
146	=item on_drain => $cb->($handle)	207	=item on_drain => $cb->($handle)
147		208
148	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
149	(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).
…		…
156	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
157	the file when the write queue becomes empty.	218	the file when the write queue becomes empty.
158		219
159	=item timeout => $fractional_seconds	220	=item timeout => $fractional_seconds
160		221
		222	=item rtimeout => $fractional_seconds
		223
		224	=item wtimeout => $fractional_seconds
		225
161	If non-zero, then this enables an "inactivity" timeout: whenever this many	226	If non-zero, then these enables an "inactivity" timeout: whenever this
162	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
163	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
164	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>.
165		237
166	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
167	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
168	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
169	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
…		…
348		420
349	sub new {	421	sub new {
350	my $class = shift;	422	my $class = shift;
351	my $self = bless { @_ }, $class;	423	my $self = bless { @_ }, $class;
352		424
353	$self->{fh} or Carp::croak "mandatory argument fh is missing";	425	if ($self->{fh}) {
		426	$self->_start;
		427	return unless $self->{fh}; # could be gone by now
		428
		429	} elsif ($self->{connect}) {
		430	require AnyEvent::Socket;
		431
		432	$self->{peername} = $self->{connect}[0]
		433	unless exists $self->{peername};
		434
		435	$self->{_skip_drain_rbuf} = 1;
		436
		437	{
		438	Scalar::Util::weaken (my $self = $self);
		439
		440	$self->{_connect} =
		441	AnyEvent::Socket::tcp_connect (
		442	$self->{connect}[0],
		443	$self->{connect}[1],
		444	sub {
		445	my ($fh, $host, $port, $retry) = @_;
		446
		447	if ($fh) {
		448	$self->{fh} = $fh;
		449
		450	delete $self->{_skip_drain_rbuf};
		451	$self->_start;
		452
		453	$self->{on_connect}
		454	and $self->{on_connect}($self, $host, $port, sub {
		455	delete @$self{qw(fh _tw _ww _rw _eof _queue rbuf _wbuf tls _tls_rbuf _tls_wbuf)};
		456	$self->{_skip_drain_rbuf} = 1;
		457	&$retry;
		458	});
		459
		460	} else {
		461	if ($self->{on_connect_error}) {
		462	$self->{on_connect_error}($self, "$!");
		463	$self->destroy;
		464	} else {
		465	$self->_error ($!, 1);
		466	}
		467	}
		468	},
		469	sub {
		470	local $self->{fh} = $_[0];
		471
		472	$self->{on_prepare}
		473	? $self->{on_prepare}->($self)
		474	: ()
		475	}
		476	);
		477	}
		478
		479	} else {
		480	Carp::croak "AnyEvent::Handle: either an existing fh or the connect parameter must be specified";
		481	}
		482
		483	$self
		484	}
		485
		486	sub _start {
		487	my ($self) = @_;
354		488
355	AnyEvent::Util::fh_nonblocking $self->{fh}, 1;	489	AnyEvent::Util::fh_nonblocking $self->{fh}, 1;
356		490
		491	$self->{_activity} =
		492	$self->{_ractivity} =
357	$self->{_activity} = AnyEvent->now;	493	$self->{_wactivity} = AE::now;
358	$self->_timeout;	494
		495	$self->timeout (delete $self->{timeout} ) if $self->{timeout};
		496	$self->rtimeout (delete $self->{rtimeout}) if $self->{rtimeout};
		497	$self->wtimeout (delete $self->{wtimeout}) if $self->{wtimeout};
359		498
360	$self->no_delay (delete $self->{no_delay}) if exists $self->{no_delay};	499	$self->no_delay (delete $self->{no_delay}) if exists $self->{no_delay};
361		500
362	$self->starttls (delete $self->{tls}, delete $self->{tls_ctx})	501	$self->starttls (delete $self->{tls}, delete $self->{tls_ctx})
363	if $self->{tls};	502	if $self->{tls};
364		503
365	$self->on_drain (delete $self->{on_drain}) if $self->{on_drain};	504	$self->on_drain (delete $self->{on_drain}) if $self->{on_drain};
366		505
367	$self->start_read	506	$self->start_read
368	if $self->{on_read};	507	if $self->{on_read} \|\| @{ $self->{_queue} };
369		508
370	$self->{fh} && $self	509	$self->_drain_wbuf;
371	}	510	}
372		511
373	#sub _shutdown {	512	#sub _shutdown {
374	# my ($self) = @_;	513	# my ($self) = @_;
375	#	514	#
…		…
385	$! = $errno;	524	$! = $errno;
386	$message \|\|= "$!";	525	$message \|\|= "$!";
387		526
388	if ($self->{on_error}) {	527	if ($self->{on_error}) {
389	$self->{on_error}($self, $fatal, $message);	528	$self->{on_error}($self, $fatal, $message);
390	$self->destroy;	529	$self->destroy if $fatal;
391	} elsif ($self->{fh}) {	530	} elsif ($self->{fh}) {
392	$self->destroy;	531	$self->destroy;
393	Carp::croak "AnyEvent::Handle uncaught error: $message";	532	Carp::croak "AnyEvent::Handle uncaught error: $message";
394	}	533	}
395	}	534	}
…		…
422	$_[0]{on_eof} = $_[1];	561	$_[0]{on_eof} = $_[1];
423	}	562	}
424		563
425	=item $handle->on_timeout ($cb)	564	=item $handle->on_timeout ($cb)
426		565
427	Replace the current C<on_timeout> callback, or disables the callback (but	566	=item $handle->on_rtimeout ($cb)
428	not the timeout) if C<$cb> = C<undef>. See the C<timeout> constructor
429	argument and method.
430		567
431	=cut	568	=item $handle->on_wtimeout ($cb)
432		569
433	sub on_timeout {	570	Replace the current C<on_timeout>, C<on_rtimeout> or C<on_wtimeout>
434	$_[0]{on_timeout} = $_[1];	571	callback, or disables the callback (but not the timeout) if C<$cb> =
435	}	572	C<undef>. See the C<timeout> constructor argument and method.
		573
		574	=cut
		575
		576	# see below
436		577
437	=item $handle->autocork ($boolean)	578	=item $handle->autocork ($boolean)
438		579
439	Enables or disables the current autocork behaviour (see C<autocork>	580	Enables or disables the current autocork behaviour (see C<autocork>
440	constructor argument). Changes will only take effect on the next write.	581	constructor argument). Changes will only take effect on the next write.
…		…
455	sub no_delay {	596	sub no_delay {
456	$_[0]{no_delay} = $_[1];	597	$_[0]{no_delay} = $_[1];
457		598
458	eval {	599	eval {
459	local $SIG{__DIE__};	600	local $SIG{__DIE__};
460	setsockopt $_[0]{fh}, &Socket::IPPROTO_TCP, &Socket::TCP_NODELAY, int $_[1];	601	setsockopt $_[0]{fh}, &Socket::IPPROTO_TCP, &Socket::TCP_NODELAY, int $_[1]
		602	if $_[0]{fh};
461	};	603	};
462	}	604	}
463		605
464	=item $handle->on_starttls ($cb)	606	=item $handle->on_starttls ($cb)
465		607
…		…
479		621
480	sub on_starttls {	622	sub on_starttls {
481	$_[0]{on_stoptls} = $_[1];	623	$_[0]{on_stoptls} = $_[1];
482	}	624	}
483		625
		626	=item $handle->rbuf_max ($max_octets)
		627
		628	Configures the C<rbuf_max> setting (C<undef> disables it).
		629
		630	=cut
		631
		632	sub rbuf_max {
		633	$_[0]{rbuf_max} = $_[1];
		634	}
		635
484	#############################################################################	636	#############################################################################
485		637
486	=item $handle->timeout ($seconds)	638	=item $handle->timeout ($seconds)
487		639
		640	=item $handle->rtimeout ($seconds)
		641
		642	=item $handle->wtimeout ($seconds)
		643
488	Configures (or disables) the inactivity timeout.	644	Configures (or disables) the inactivity timeout.
489		645
490	=cut	646	=item $handle->timeout_reset
491		647
492	sub timeout {	648	=item $handle->rtimeout_reset
		649
		650	=item $handle->wtimeout_reset
		651
		652	Reset the activity timeout, as if data was received or sent.
		653
		654	These methods are cheap to call.
		655
		656	=cut
		657
		658	for my $dir ("", "r", "w") {
		659	my $timeout = "${dir}timeout";
		660	my $tw = "_${dir}tw";
		661	my $on_timeout = "on_${dir}timeout";
		662	my $activity = "_${dir}activity";
		663	my $cb;
		664
		665	*$on_timeout = sub {
		666	$_[0]{$on_timeout} = $_[1];
		667	};
		668
		669	*$timeout = sub {
493	my ($self, $timeout) = @_;	670	my ($self, $new_value) = @_;
494		671
495	$self->{timeout} = $timeout;	672	$self->{$timeout} = $new_value;
496	$self->_timeout;	673	delete $self->{$tw}; &$cb;
497	}	674	};
498		675
		676	*{"${dir}timeout_reset"} = sub {
		677	$_[0]{$activity} = AE::now;
		678	};
		679
		680	# main workhorse:
499	# reset the timeout watcher, as neccessary	681	# reset the timeout watcher, as neccessary
500	# also check for time-outs	682	# also check for time-outs
501	sub _timeout {	683	$cb = sub {
502	my ($self) = @_;	684	my ($self) = @_;
503		685
504	if ($self->{timeout}) {	686	if ($self->{$timeout} && $self->{fh}) {
505	my $NOW = AnyEvent->now;	687	my $NOW = AE::now;
506		688
507	# when would the timeout trigger?	689	# when would the timeout trigger?
508	my $after = $self->{_activity} + $self->{timeout} - $NOW;	690	my $after = $self->{$activity} + $self->{$timeout} - $NOW;
509		691
510	# now or in the past already?	692	# now or in the past already?
511	if ($after <= 0) {	693	if ($after <= 0) {
512	$self->{_activity} = $NOW;	694	$self->{$activity} = $NOW;
513		695
514	if ($self->{on_timeout}) {	696	if ($self->{$on_timeout}) {
515	$self->{on_timeout}($self);	697	$self->{$on_timeout}($self);
516	} else {	698	} else {
517	$self->_error (&Errno::ETIMEDOUT);	699	$self->_error (Errno::ETIMEDOUT);
		700	}
		701
		702	# callback could have changed timeout value, optimise
		703	return unless $self->{$timeout};
		704
		705	# calculate new after
		706	$after = $self->{$timeout};
518	}	707	}
519		708
520	# callback could have changed timeout value, optimise	709	Scalar::Util::weaken $self;
521	return unless $self->{timeout};	710	return unless $self; # ->error could have destroyed $self
522		711
523	# calculate new after	712	$self->{$tw} \|\|= AE::timer $after, 0, sub {
524	$after = $self->{timeout};	713	delete $self->{$tw};
		714	$cb->($self);
		715	};
		716	} else {
		717	delete $self->{$tw};
525	}	718	}
526
527	Scalar::Util::weaken $self;
528	return unless $self; # ->error could have destroyed $self
529
530	$self->{_tw} \|\|= AnyEvent->timer (after => $after, cb => sub {
531	delete $self->{_tw};
532	$self->_timeout;
533	});
534	} else {
535	delete $self->{_tw};
536	}	719	}
537	}	720	}
538		721
539	#############################################################################	722	#############################################################################
540		723
…		…
588	my $len = syswrite $self->{fh}, $self->{wbuf};	771	my $len = syswrite $self->{fh}, $self->{wbuf};
589		772
590	if (defined $len) {	773	if (defined $len) {
591	substr $self->{wbuf}, 0, $len, "";	774	substr $self->{wbuf}, 0, $len, "";
592		775
593	$self->{_activity} = AnyEvent->now;	776	$self->{_activity} = $self->{_wactivity} = AE::now;
594		777
595	$self->{on_drain}($self)	778	$self->{on_drain}($self)
596	if $self->{low_water_mark} >= (length $self->{wbuf}) + (length $self->{_tls_wbuf})	779	if $self->{low_water_mark} >= (length $self->{wbuf}) + (length $self->{_tls_wbuf})
597	&& $self->{on_drain};	780	&& $self->{on_drain};
598		781
…		…
604		787
605	# try to write data immediately	788	# try to write data immediately
606	$cb->() unless $self->{autocork};	789	$cb->() unless $self->{autocork};
607		790
608	# if still data left in wbuf, we need to poll	791	# if still data left in wbuf, we need to poll
609	$self->{_ww} = AnyEvent->io (fh => $self->{fh}, poll => "w", cb => $cb)	792	$self->{_ww} = AE::io $self->{fh}, 1, $cb
610	if length $self->{wbuf};	793	if length $self->{wbuf};
611	};	794	};
612	}	795	}
613		796
614	our %WH;	797	our %WH;
…		…
627	->($self, @_);	810	->($self, @_);
628	}	811	}
629		812
630	if ($self->{tls}) {	813	if ($self->{tls}) {
631	$self->{_tls_wbuf} .= $_[0];	814	$self->{_tls_wbuf} .= $_[0];
632		815	&_dotls ($self) if $self->{fh};
633	&_dotls ($self);
634	} else {	816	} else {
635	$self->{wbuf} .= $_[0];	817	$self->{wbuf} .= $_[0];
636	$self->_drain_wbuf;	818	$self->_drain_wbuf if $self->{fh};
637	}	819	}
638	}	820	}
639		821
640	=item $handle->push_write (type => @args)	822	=item $handle->push_write (type => @args)
641		823
…		…
858	=cut	1040	=cut
859		1041
860	sub _drain_rbuf {	1042	sub _drain_rbuf {
861	my ($self) = @_;	1043	my ($self) = @_;
862		1044
		1045	# avoid recursion
		1046	return if $self->{_skip_drain_rbuf};
863	local $self->{_in_drain} = 1;	1047	local $self->{_skip_drain_rbuf} = 1;
864
865	if (
866	defined $self->{rbuf_max}
867	&& $self->{rbuf_max} < length $self->{rbuf}
868	) {
869	$self->_error (&Errno::ENOSPC, 1), return;
870	}
871		1048
872	while () {	1049	while () {
873	# we need to use a separate tls read buffer, as we must not receive data while	1050	# we need to use a separate tls read buffer, as we must not receive data while
874	# we are draining the buffer, and this can only happen with TLS.	1051	# we are draining the buffer, and this can only happen with TLS.
875	$self->{rbuf} .= delete $self->{_tls_rbuf} if exists $self->{_tls_rbuf};	1052	$self->{rbuf} .= delete $self->{_tls_rbuf}
		1053	if exists $self->{_tls_rbuf};
876		1054
877	my $len = length $self->{rbuf};	1055	my $len = length $self->{rbuf};
878		1056
879	if (my $cb = shift @{ $self->{_queue} }) {	1057	if (my $cb = shift @{ $self->{_queue} }) {
880	unless ($cb->($self)) {	1058	unless ($cb->($self)) {
881	if ($self->{_eof}) {	1059	# no progress can be made
882	# no progress can be made (not enough data and no data forthcoming)	1060	# (not enough data and no data forthcoming)
883	$self->_error (&Errno::EPIPE, 1), return;	1061	$self->_error (Errno::EPIPE, 1), return
884	}	1062	if $self->{_eof};
885		1063
886	unshift @{ $self->{_queue} }, $cb;	1064	unshift @{ $self->{_queue} }, $cb;
887	last;	1065	last;
888	}	1066	}
889	} elsif ($self->{on_read}) {	1067	} elsif ($self->{on_read}) {
…		…
896	&& !@{ $self->{_queue} } # and the queue is still empty	1074	&& !@{ $self->{_queue} } # and the queue is still empty
897	&& $self->{on_read} # but we still have on_read	1075	&& $self->{on_read} # but we still have on_read
898	) {	1076	) {
899	# no further data will arrive	1077	# no further data will arrive
900	# so no progress can be made	1078	# so no progress can be made
901	$self->_error (&Errno::EPIPE, 1), return	1079	$self->_error (Errno::EPIPE, 1), return
902	if $self->{_eof};	1080	if $self->{_eof};
903		1081
904	last; # more data might arrive	1082	last; # more data might arrive
905	}	1083	}
906	} else {	1084	} else {
…		…
909	last;	1087	last;
910	}	1088	}
911	}	1089	}
912		1090
913	if ($self->{_eof}) {	1091	if ($self->{_eof}) {
914	if ($self->{on_eof}) {	1092	$self->{on_eof}
915	$self->{on_eof}($self)	1093	? $self->{on_eof}($self)
916	} else {
917	$self->_error (0, 1, "Unexpected end-of-file");	1094	: $self->_error (0, 1, "Unexpected end-of-file");
918	}	1095
		1096	return;
		1097	}
		1098
		1099	if (
		1100	defined $self->{rbuf_max}
		1101	&& $self->{rbuf_max} < length $self->{rbuf}
		1102	) {
		1103	$self->_error (Errno::ENOSPC, 1), return;
919	}	1104	}
920		1105
921	# may need to restart read watcher	1106	# may need to restart read watcher
922	unless ($self->{_rw}) {	1107	unless ($self->{_rw}) {
923	$self->start_read	1108	$self->start_read
…		…
935		1120
936	sub on_read {	1121	sub on_read {
937	my ($self, $cb) = @_;	1122	my ($self, $cb) = @_;
938		1123
939	$self->{on_read} = $cb;	1124	$self->{on_read} = $cb;
940	$self->_drain_rbuf if $cb && !$self->{_in_drain};	1125	$self->_drain_rbuf if $cb;
941	}	1126	}
942		1127
943	=item $handle->rbuf	1128	=item $handle->rbuf
944		1129
945	Returns the read buffer (as a modifiable lvalue).	1130	Returns the read buffer (as a modifiable lvalue).
…		…
997	$cb = ($RH{$type} or Carp::croak "unsupported type passed to AnyEvent::Handle::push_read")	1182	$cb = ($RH{$type} or Carp::croak "unsupported type passed to AnyEvent::Handle::push_read")
998	->($self, $cb, @_);	1183	->($self, $cb, @_);
999	}	1184	}
1000		1185
1001	push @{ $self->{_queue} }, $cb;	1186	push @{ $self->{_queue} }, $cb;
1002	$self->_drain_rbuf unless $self->{_in_drain};	1187	$self->_drain_rbuf;
1003	}	1188	}
1004		1189
1005	sub unshift_read {	1190	sub unshift_read {
1006	my $self = shift;	1191	my $self = shift;
1007	my $cb = pop;	1192	my $cb = pop;
…		…
1013	->($self, $cb, @_);	1198	->($self, $cb, @_);
1014	}	1199	}
1015		1200
1016		1201
1017	unshift @{ $self->{_queue} }, $cb;	1202	unshift @{ $self->{_queue} }, $cb;
1018	$self->_drain_rbuf unless $self->{_in_drain};	1203	$self->_drain_rbuf;
1019	}	1204	}
1020		1205
1021	=item $handle->push_read (type => @args, $cb)	1206	=item $handle->push_read (type => @args, $cb)
1022		1207
1023	=item $handle->unshift_read (type => @args, $cb)	1208	=item $handle->unshift_read (type => @args, $cb)
…		…
1156	return 1;	1341	return 1;
1157	}	1342	}
1158		1343
1159	# reject	1344	# reject
1160	if ($reject && $$rbuf =~ $reject) {	1345	if ($reject && $$rbuf =~ $reject) {
1161	$self->_error (&Errno::EBADMSG);	1346	$self->_error (Errno::EBADMSG);
1162	}	1347	}
1163		1348
1164	# skip	1349	# skip
1165	if ($skip && $$rbuf =~ $skip) {	1350	if ($skip && $$rbuf =~ $skip) {
1166	$data .= substr $$rbuf, 0, $+[0], "";	1351	$data .= substr $$rbuf, 0, $+[0], "";
…		…
1182	my ($self, $cb) = @_;	1367	my ($self, $cb) = @_;
1183		1368
1184	sub {	1369	sub {
1185	unless ($_[0]{rbuf} =~ s/^(0\|[1-9][0-9]*)://) {	1370	unless ($_[0]{rbuf} =~ s/^(0\|[1-9][0-9]*)://) {
1186	if ($_[0]{rbuf} =~ /[^0-9]/) {	1371	if ($_[0]{rbuf} =~ /[^0-9]/) {
1187	$self->_error (&Errno::EBADMSG);	1372	$self->_error (Errno::EBADMSG);
1188	}	1373	}
1189	return;	1374	return;
1190	}	1375	}
1191		1376
1192	my $len = $1;	1377	my $len = $1;
…		…
1195	my $string = $_[1];	1380	my $string = $_[1];
1196	$_[0]->unshift_read (chunk => 1, sub {	1381	$_[0]->unshift_read (chunk => 1, sub {
1197	if ($_[1] eq ",") {	1382	if ($_[1] eq ",") {
1198	$cb->($_[0], $string);	1383	$cb->($_[0], $string);
1199	} else {	1384	} else {
1200	$self->_error (&Errno::EBADMSG);	1385	$self->_error (Errno::EBADMSG);
1201	}	1386	}
1202	});	1387	});
1203	});	1388	});
1204		1389
1205	1	1390	1
…		…
1295	$json->incr_skip;	1480	$json->incr_skip;
1296		1481
1297	$self->{rbuf} = $json->incr_text;	1482	$self->{rbuf} = $json->incr_text;
1298	$json->incr_text = "";	1483	$json->incr_text = "";
1299		1484
1300	$self->_error (&Errno::EBADMSG);	1485	$self->_error (Errno::EBADMSG);
1301		1486
1302	()	1487	()
1303	} else {	1488	} else {
1304	$self->{rbuf} = "";	1489	$self->{rbuf} = "";
1305		1490
…		…
1342	# read remaining chunk	1527	# read remaining chunk
1343	$_[0]->unshift_read (chunk => $len, sub {	1528	$_[0]->unshift_read (chunk => $len, sub {
1344	if (my $ref = eval { Storable::thaw ($_[1]) }) {	1529	if (my $ref = eval { Storable::thaw ($_[1]) }) {
1345	$cb->($_[0], $ref);	1530	$cb->($_[0], $ref);
1346	} else {	1531	} else {
1347	$self->_error (&Errno::EBADMSG);	1532	$self->_error (Errno::EBADMSG);
1348	}	1533	}
1349	});	1534	});
1350	}	1535	}
1351		1536
1352	1	1537	1
…		…
1404	my ($self) = @_;	1589	my ($self) = @_;
1405		1590
1406	unless ($self->{_rw} \|\| $self->{_eof}) {	1591	unless ($self->{_rw} \|\| $self->{_eof}) {
1407	Scalar::Util::weaken $self;	1592	Scalar::Util::weaken $self;
1408		1593
1409	$self->{_rw} = AnyEvent->io (fh => $self->{fh}, poll => "r", cb => sub {	1594	$self->{_rw} = AE::io $self->{fh}, 0, sub {
1410	my $rbuf = \($self->{tls} ? my $buf : $self->{rbuf});	1595	my $rbuf = \($self->{tls} ? my $buf : $self->{rbuf});
1411	my $len = sysread $self->{fh}, $$rbuf, $self->{read_size} \|\| 8192, length $$rbuf;	1596	my $len = sysread $self->{fh}, $$rbuf, $self->{read_size} \|\| 8192, length $$rbuf;
1412		1597
1413	if ($len > 0) {	1598	if ($len > 0) {
1414	$self->{_activity} = AnyEvent->now;	1599	$self->{_activity} = $self->{_ractivity} = AE::now;
1415		1600
1416	if ($self->{tls}) {	1601	if ($self->{tls}) {
1417	Net::SSLeay::BIO_write ($self->{_rbio}, $$rbuf);	1602	Net::SSLeay::BIO_write ($self->{_rbio}, $$rbuf);
1418		1603
1419	&_dotls ($self);	1604	&_dotls ($self);
1420	} else {	1605	} else {
1421	$self->_drain_rbuf unless $self->{_in_drain};	1606	$self->_drain_rbuf;
1422	}	1607	}
1423		1608
1424	} elsif (defined $len) {	1609	} elsif (defined $len) {
1425	delete $self->{_rw};	1610	delete $self->{_rw};
1426	$self->{_eof} = 1;	1611	$self->{_eof} = 1;
1427	$self->_drain_rbuf unless $self->{_in_drain};	1612	$self->_drain_rbuf;
1428		1613
1429	} elsif ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK) {	1614	} elsif ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK) {
1430	return $self->_error ($!, 1);	1615	return $self->_error ($!, 1);
1431	}	1616	}
1432	});	1617	};
1433	}	1618	}
1434	}	1619	}
1435		1620
1436	our $ERROR_SYSCALL;	1621	our $ERROR_SYSCALL;
1437	our $ERROR_WANT_READ;	1622	our $ERROR_WANT_READ;
…		…
1450	if ($self->{_on_starttls}) {	1635	if ($self->{_on_starttls}) {
1451	(delete $self->{_on_starttls})->($self, undef, $err);	1636	(delete $self->{_on_starttls})->($self, undef, $err);
1452	&_freetls;	1637	&_freetls;
1453	} else {	1638	} else {
1454	&_freetls;	1639	&_freetls;
1455	$self->_error (&Errno::EPROTO, 1, $err);	1640	$self->_error (Errno::EPROTO, 1, $err);
1456	}	1641	}
1457	}	1642	}
1458		1643
1459	# poll the write BIO and send the data if applicable	1644	# poll the write BIO and send the data if applicable
1460	# also decode read data if possible	1645	# also decode read data if possible
…		…
1492	$self->{_eof} = 1;	1677	$self->{_eof} = 1;
1493	}	1678	}
1494	}	1679	}
1495		1680
1496	$self->{_tls_rbuf} .= $tmp;	1681	$self->{_tls_rbuf} .= $tmp;
1497	$self->_drain_rbuf unless $self->{_in_drain};	1682	$self->_drain_rbuf;
1498	$self->{tls} or return; # tls session might have gone away in callback	1683	$self->{tls} or return; # tls session might have gone away in callback
1499	}	1684	}
1500		1685
1501	$tmp = Net::SSLeay::get_error ($self->{tls}, -1);	1686	$tmp = Net::SSLeay::get_error ($self->{tls}, -1);
1502	return $self->_tls_error ($tmp)	1687	return $self->_tls_error ($tmp)
…		…
1517		1702
1518	Instead of starting TLS negotiation immediately when the AnyEvent::Handle	1703	Instead of starting TLS negotiation immediately when the AnyEvent::Handle
1519	object is created, you can also do that at a later time by calling	1704	object is created, you can also do that at a later time by calling
1520	C<starttls>.	1705	C<starttls>.
1521		1706
		1707	Starting TLS is currently an asynchronous operation - when you push some
		1708	write data and then call C<< ->starttls >> then TLS negotiation will start
		1709	immediately, after which the queued write data is then sent.
		1710
1522	The first argument is the same as the C<tls> constructor argument (either	1711	The first argument is the same as the C<tls> constructor argument (either
1523	C<"connect">, C<"accept"> or an existing Net::SSLeay object).	1712	C<"connect">, C<"accept"> or an existing Net::SSLeay object).
1524		1713
1525	The second argument is the optional C<AnyEvent::TLS> object that is used	1714	The second argument is the optional C<AnyEvent::TLS> object that is used
1526	when AnyEvent::Handle has to create its own TLS connection object, or	1715	when AnyEvent::Handle has to create its own TLS connection object, or
…		…
1530	The TLS connection object will end up in C<< $handle->{tls} >>, the TLS	1719	The TLS connection object will end up in C<< $handle->{tls} >>, the TLS
1531	context in C<< $handle->{tls_ctx} >> after this call and can be used or	1720	context in C<< $handle->{tls_ctx} >> after this call and can be used or
1532	changed to your liking. Note that the handshake might have already started	1721	changed to your liking. Note that the handshake might have already started
1533	when this function returns.	1722	when this function returns.
1534		1723
1535	If it an error to start a TLS handshake more than once per	1724	Due to bugs in OpenSSL, it might or might not be possible to do multiple
1536	AnyEvent::Handle object (this is due to bugs in OpenSSL).	1725	handshakes on the same stream. Best do not attempt to use the stream after
		1726	stopping TLS.
1537		1727
1538	=cut	1728	=cut
1539		1729
1540	our %TLS_CACHE; #TODO not yet documented, should we?	1730	our %TLS_CACHE; #TODO not yet documented, should we?
1541		1731
1542	sub starttls {	1732	sub starttls {
1543	my ($self, $ssl, $ctx) = @_;	1733	my ($self, $tls, $ctx) = @_;
		1734
		1735	Carp::croak "It is an error to call starttls on an AnyEvent::Handle object while TLS is already active, caught"
		1736	if $self->{tls};
		1737
		1738	$self->{tls} = $tls;
		1739	$self->{tls_ctx} = $ctx if @_ > 2;
		1740
		1741	return unless $self->{fh};
1544		1742
1545	require Net::SSLeay;	1743	require Net::SSLeay;
1546
1547	Carp::croak "it is an error to call starttls more than once on an AnyEvent::Handle object"
1548	if $self->{tls};
1549		1744
1550	$ERROR_SYSCALL = Net::SSLeay::ERROR_SYSCALL ();	1745	$ERROR_SYSCALL = Net::SSLeay::ERROR_SYSCALL ();
1551	$ERROR_WANT_READ = Net::SSLeay::ERROR_WANT_READ ();	1746	$ERROR_WANT_READ = Net::SSLeay::ERROR_WANT_READ ();
1552		1747
		1748	$tls = $self->{tls};
1553	$ctx \|\|= $self->{tls_ctx};	1749	$ctx = $self->{tls_ctx};
		1750
		1751	local $Carp::CarpLevel = 1; # skip ourselves when creating a new context or session
1554		1752
1555	if ("HASH" eq ref $ctx) {	1753	if ("HASH" eq ref $ctx) {
1556	require AnyEvent::TLS;	1754	require AnyEvent::TLS;
1557
1558	local $Carp::CarpLevel = 1; # skip ourselves when creating a new context
1559		1755
1560	if ($ctx->{cache}) {	1756	if ($ctx->{cache}) {
1561	my $key = $ctx+0;	1757	my $key = $ctx+0;
1562	$ctx = $TLS_CACHE{$key} \|\|= new AnyEvent::TLS %$ctx;	1758	$ctx = $TLS_CACHE{$key} \|\|= new AnyEvent::TLS %$ctx;
1563	} else {	1759	} else {
1564	$ctx = new AnyEvent::TLS %$ctx;	1760	$ctx = new AnyEvent::TLS %$ctx;
1565	}	1761	}
1566	}	1762	}
1567		1763
1568	$self->{tls_ctx} = $ctx \|\| TLS_CTX ();	1764	$self->{tls_ctx} = $ctx \|\| TLS_CTX ();
1569	$self->{tls} = $ssl = $self->{tls_ctx}->_get_session ($ssl, $self, $self->{peername});	1765	$self->{tls} = $tls = $self->{tls_ctx}->_get_session ($tls, $self, $self->{peername});
1570		1766
1571	# basically, this is deep magic (because SSL_read should have the same issues)	1767	# basically, this is deep magic (because SSL_read should have the same issues)
1572	# but the openssl maintainers basically said: "trust us, it just works".	1768	# but the openssl maintainers basically said: "trust us, it just works".
1573	# (unfortunately, we have to hardcode constants because the abysmally misdesigned	1769	# (unfortunately, we have to hardcode constants because the abysmally misdesigned
1574	# and mismaintained ssleay-module doesn't even offer them).	1770	# and mismaintained ssleay-module doesn't even offer them).
…		…
1581	# and we drive openssl fully in blocking mode here. Or maybe we don't - openssl seems to	1777	# and we drive openssl fully in blocking mode here. Or maybe we don't - openssl seems to
1582	# have identity issues in that area.	1778	# have identity issues in that area.
1583	# Net::SSLeay::CTX_set_mode ($ssl,	1779	# Net::SSLeay::CTX_set_mode ($ssl,
1584	# (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE () } \|\| 1)	1780	# (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE () } \|\| 1)
1585	# \| (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER () } \|\| 2));	1781	# \| (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER () } \|\| 2));
1586	Net::SSLeay::CTX_set_mode ($ssl, 1\|2);	1782	Net::SSLeay::CTX_set_mode ($tls, 1\|2);
1587		1783
1588	$self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());	1784	$self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
1589	$self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());	1785	$self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
1590		1786
		1787	Net::SSLeay::BIO_write ($self->{_rbio}, delete $self->{rbuf});
		1788
1591	Net::SSLeay::set_bio ($ssl, $self->{_rbio}, $self->{_wbio});	1789	Net::SSLeay::set_bio ($tls, $self->{_rbio}, $self->{_wbio});
1592		1790
1593	$self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) }	1791	$self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) }
1594	if $self->{on_starttls};	1792	if $self->{on_starttls};
1595		1793
1596	&_dotls; # need to trigger the initial handshake	1794	&_dotls; # need to trigger the initial handshake
…		…
1599		1797
1600	=item $handle->stoptls	1798	=item $handle->stoptls
1601		1799
1602	Shuts down the SSL connection - this makes a proper EOF handshake by	1800	Shuts down the SSL connection - this makes a proper EOF handshake by
1603	sending a close notify to the other side, but since OpenSSL doesn't	1801	sending a close notify to the other side, but since OpenSSL doesn't
1604	support non-blocking shut downs, it is not possible to re-use the stream	1802	support non-blocking shut downs, it is not guarenteed that you can re-use
1605	afterwards.	1803	the stream afterwards.
1606		1804
1607	=cut	1805	=cut
1608		1806
1609	sub stoptls {	1807	sub stoptls {
1610	my ($self) = @_;	1808	my ($self) = @_;
…		…
1623	sub _freetls {	1821	sub _freetls {
1624	my ($self) = @_;	1822	my ($self) = @_;
1625		1823
1626	return unless $self->{tls};	1824	return unless $self->{tls};
1627		1825
1628	$self->{tls_ctx}->_put_session (delete $self->{tls});	1826	$self->{tls_ctx}->_put_session (delete $self->{tls})
		1827	if $self->{tls} > 0;
1629		1828
1630	delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};	1829	delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};
1631	}	1830	}
1632		1831
1633	sub DESTROY {	1832	sub DESTROY {
…		…
1635		1834
1636	&_freetls;	1835	&_freetls;
1637		1836
1638	my $linger = exists $self->{linger} ? $self->{linger} : 3600;	1837	my $linger = exists $self->{linger} ? $self->{linger} : 3600;
1639		1838
1640	if ($linger && length $self->{wbuf}) {	1839	if ($linger && length $self->{wbuf} && $self->{fh}) {
1641	my $fh = delete $self->{fh};	1840	my $fh = delete $self->{fh};
1642	my $wbuf = delete $self->{wbuf};	1841	my $wbuf = delete $self->{wbuf};
1643		1842
1644	my @linger;	1843	my @linger;
1645		1844
1646	push @linger, AnyEvent->io (fh => $fh, poll => "w", cb => sub {	1845	push @linger, AE::io $fh, 1, sub {
1647	my $len = syswrite $fh, $wbuf, length $wbuf;	1846	my $len = syswrite $fh, $wbuf, length $wbuf;
1648		1847
1649	if ($len > 0) {	1848	if ($len > 0) {
1650	substr $wbuf, 0, $len, "";	1849	substr $wbuf, 0, $len, "";
1651	} else {	1850	} else {
1652	@linger = (); # end	1851	@linger = (); # end
1653	}	1852	}
1654	});	1853	};
1655	push @linger, AnyEvent->timer (after => $linger, cb => sub {	1854	push @linger, AE::timer $linger, 0, sub {
1656	@linger = ();	1855	@linger = ();
1657	});	1856	};
1658	}	1857	}
1659	}	1858	}
1660		1859
1661	=item $handle->destroy	1860	=item $handle->destroy
1662		1861
1663	Shuts down the handle object as much as possible - this call ensures that	1862	Shuts down the handle object as much as possible - this call ensures that
1664	no further callbacks will be invoked and as many resources as possible	1863	no further callbacks will be invoked and as many resources as possible
1665	will be freed. You must not call any methods on the object afterwards.	1864	will be freed. Any method you will call on the handle object after
		1865	destroying it in this way will be silently ignored (and it will return the
		1866	empty list).
1666		1867
1667	Normally, you can just "forget" any references to an AnyEvent::Handle	1868	Normally, you can just "forget" any references to an AnyEvent::Handle
1668	object and it will simply shut down. This works in fatal error and EOF	1869	object and it will simply shut down. This works in fatal error and EOF
1669	callbacks, as well as code outside. It does I<NOT> work in a read or write	1870	callbacks, as well as code outside. It does I<NOT> work in a read or write
1670	callback, so when you want to destroy the AnyEvent::Handle object from	1871	callback, so when you want to destroy the AnyEvent::Handle object from
…		…
1684	sub destroy {	1885	sub destroy {
1685	my ($self) = @_;	1886	my ($self) = @_;
1686		1887
1687	$self->DESTROY;	1888	$self->DESTROY;
1688	%$self = ();	1889	%$self = ();
		1890	bless $self, "AnyEvent::Handle::destroyed";
		1891	}
		1892
		1893	sub AnyEvent::Handle::destroyed::AUTOLOAD {
		1894	#nop
1689	}	1895	}
1690		1896
1691	=item AnyEvent::Handle::TLS_CTX	1897	=item AnyEvent::Handle::TLS_CTX
1692		1898
1693	This function creates and returns the AnyEvent::TLS object used by default	1899	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 1.149 by root, Thu Jul 16 03:48:33 2009 UTC vs. Revision 1.177 by root, Sun Aug 9 00:24:35 2009 UTC

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Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents):
Revision 1.149 by root, Thu Jul 16 03:48:33 2009 UTC vs.
Revision 1.177 by root, Sun Aug 9 00:24:35 2009 UTC