[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 1.176 by root, Sun Aug 9 00:20:35 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		4
17	=cut	5	=cut
18		6
19	our $VERSION = 4.82;	7	our $VERSION = 4.92;
20		8
21	=head1 SYNOPSIS	9	=head1 SYNOPSIS
22		10
23	use AnyEvent;	11	use AnyEvent;
24	use AnyEvent::Handle;	12	use AnyEvent::Handle;
26	my $cv = AnyEvent->condvar;	14	my $cv = AnyEvent->condvar;
27		15
28	my $hdl; $hdl = new AnyEvent::Handle	16	my $hdl; $hdl = new AnyEvent::Handle
29	fh => \*STDIN,	17	fh => \*STDIN,
30	on_error => sub {	18	on_error => sub {
		19	my ($hdl, $fatal, $msg) = @_;
31	warn "got error $_[2]\n";	20	warn "got error $msg\n";
		21	$hdl->destroy;
32	$cv->send;	22	$cv->send;
33	);	23	);
34		24
35	# send some request line	25	# send some request line
36	$hdl->push_write ("getinfo\015\012");	26	$hdl->push_write ("getinfo\015\012");
…		…
45	$cv->recv;	35	$cv->recv;
46		36
47	=head1 DESCRIPTION	37	=head1 DESCRIPTION
48		38
49	This module is a helper module to make it easier to do event-based I/O on	39	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	40	filehandles.
51	on sockets see L<AnyEvent::Util>.
52		41
53	The L<AnyEvent::Intro> tutorial contains some well-documented	42	The L<AnyEvent::Intro> tutorial contains some well-documented
54	AnyEvent::Handle examples.	43	AnyEvent::Handle examples.
55		44
56	In the following, when the documentation refers to of "bytes" then this	45	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	46	means characters. As sysread and syswrite are used for all I/O, their
58	treatment of characters applies to this module as well.	47	treatment of characters applies to this module as well.
59		48
		49	At the very minimum, you should specify C<fh> or C<connect>, and the
		50	C<on_error> callback.
		51
60	All callbacks will be invoked with the handle object as their first	52	All callbacks will be invoked with the handle object as their first
61	argument.	53	argument.
62		54
		55	=cut
		56
		57	package AnyEvent::Handle;
		58
		59	use Scalar::Util ();
		60	use List::Util ();
		61	use Carp ();
		62	use Errno qw(EAGAIN EINTR);
		63
		64	use AnyEvent (); BEGIN { AnyEvent::common_sense }
		65	use AnyEvent::Util qw(WSAEWOULDBLOCK);
		66
63	=head1 METHODS	67	=head1 METHODS
64		68
65	=over 4	69	=over 4
66		70
67	=item $handle = B<new> AnyEvent::TLS fh => $filehandle, key => value...	71	=item $handle = B<new> AnyEvent::TLS fh => $filehandle, key => value...
68		72
69	The constructor supports these arguments (all as C<< key => value >> pairs).	73	The constructor supports these arguments (all as C<< key => value >> pairs).
70		74
71	=over 4	75	=over 4
72		76
73	=item fh => $filehandle [MANDATORY]	77	=item fh => $filehandle [C<fh> or C<connect> MANDATORY]
74		78
75	The filehandle this L<AnyEvent::Handle> object will operate on.	79	The filehandle this L<AnyEvent::Handle> object will operate on.
76
77	NOTE: The filehandle will be set to non-blocking mode (using	80	NOTE: The filehandle will be set to non-blocking mode (using
78	C<AnyEvent::Util::fh_nonblocking>) by the constructor and needs to stay in	81	C<AnyEvent::Util::fh_nonblocking>) by the constructor and needs to stay in
79	that mode.	82	that mode.
80		83
		84	=item connect => [$host, $service] [C<fh> or C<connect> MANDATORY]
		85
		86	Try to connect to the specified host and service (port), using
		87	C<AnyEvent::Socket::tcp_connect>. The C<$host> additionally becomes the
		88	default C<peername>.
		89
		90	You have to specify either this parameter, or C<fh>, above.
		91
		92	It is possible to push requests on the read and write queues, and modify
		93	properties of the stream, even while AnyEvent::Handle is connecting.
		94
		95	When this parameter is specified, then the C<on_prepare>,
		96	C<on_connect_error> and C<on_connect> callbacks will be called under the
		97	appropriate circumstances:
		98
		99	=over 4
		100
		101	=item on_prepare => $cb->($handle)
		102
		103	This (rarely used) callback is called before a new connection is
		104	attempted, but after the file handle has been created. It could be used to
		105	prepare the file handle with parameters required for the actual connect
		106	(as opposed to settings that can be changed when the connection is already
		107	established).
		108
		109	The return value of this callback should be the connect timeout value in
		110	seconds (or C<0>, or C<undef>, or the empty list, to indicate the default
		111	timeout is to be used).
		112
		113	=item on_connect => $cb->($handle, $host, $port, $retry->())
		114
		115	This callback is called when a connection has been successfully established.
		116
		117	The actual numeric host and port (the socket peername) are passed as
		118	parameters, together with a retry callback.
		119
		120	When, for some reason, the handle is not acceptable, then calling
		121	C<$retry> will continue with the next conenction target (in case of
		122	multi-homed hosts or SRV records there can be multiple connection
		123	endpoints). When it is called then the read and write queues, eof status,
		124	tls status and similar properties of the handle are being reset.
		125
		126	In most cases, ignoring the C<$retry> parameter is the way to go.
		127
		128	=item on_connect_error => $cb->($handle, $message)
		129
		130	This callback is called when the conenction could not be
		131	established. C<$!> will contain the relevant error code, and C<$message> a
		132	message describing it (usually the same as C<"$!">).
		133
		134	If this callback isn't specified, then C<on_error> will be called with a
		135	fatal error instead.
		136
		137	=back
		138
		139	=item on_error => $cb->($handle, $fatal, $message)
		140
		141	This is the error callback, which is called when, well, some error
		142	occured, such as not being able to resolve the hostname, failure to
		143	connect or a read error.
		144
		145	Some errors are fatal (which is indicated by C<$fatal> being true). On
		146	fatal errors the handle object will be destroyed (by a call to C<< ->
		147	destroy >>) after invoking the error callback (which means you are free to
		148	examine the handle object). Examples of fatal errors are an EOF condition
		149	with active (but unsatisifable) read watchers (C<EPIPE>) or I/O errors. In
		150	cases where the other side can close the connection at their will it is
		151	often easiest to not report C<EPIPE> errors in this callback.
		152
		153	AnyEvent::Handle tries to find an appropriate error code for you to check
		154	against, but in some cases (TLS errors), this does not work well. It is
		155	recommended to always output the C<$message> argument in human-readable
		156	error messages (it's usually the same as C<"$!">).
		157
		158	Non-fatal errors can be retried by simply returning, but it is recommended
		159	to simply ignore this parameter and instead abondon the handle object
		160	when this callback is invoked. Examples of non-fatal errors are timeouts
		161	C<ETIMEDOUT>) or badly-formatted data (C<EBADMSG>).
		162
		163	On callback entrance, the value of C<$!> contains the operating system
		164	error code (or C<ENOSPC>, C<EPIPE>, C<ETIMEDOUT>, C<EBADMSG> or
		165	C<EPROTO>).
		166
		167	While not mandatory, it is I<highly> recommended to set this callback, as
		168	you will not be notified of errors otherwise. The default simply calls
		169	C<croak>.
		170
		171	=item on_read => $cb->($handle)
		172
		173	This sets the default read callback, which is called when data arrives
		174	and no read request is in the queue (unlike read queue callbacks, this
		175	callback will only be called when at least one octet of data is in the
		176	read buffer).
		177
		178	To access (and remove data from) the read buffer, use the C<< ->rbuf >>
		179	method or access the C<< $handle->{rbuf} >> member directly. Note that you
		180	must not enlarge or modify the read buffer, you can only remove data at
		181	the beginning from it.
		182
		183	When an EOF condition is detected then AnyEvent::Handle will first try to
		184	feed all the remaining data to the queued callbacks and C<on_read> before
		185	calling the C<on_eof> callback. If no progress can be made, then a fatal
		186	error will be raised (with C<$!> set to C<EPIPE>).
		187
		188	Note that, unlike requests in the read queue, an C<on_read> callback
		189	doesn't mean you I<require> some data: if there is an EOF and there
		190	are outstanding read requests then an error will be flagged. With an
		191	C<on_read> callback, the C<on_eof> callback will be invoked.
		192
81	=item on_eof => $cb->($handle)	193	=item on_eof => $cb->($handle)
82		194
83	Set the callback to be called when an end-of-file condition is detected,	195	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	196	i.e. in the case of a socket, when the other side has closed the
85	connection cleanly.	197	connection cleanly, and there are no outstanding read requests in the
		198	queue (if there are read requests, then an EOF counts as an unexpected
		199	connection close and will be flagged as an error).
86		200
87	For sockets, this just means that the other side has stopped sending data,	201	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	202	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	203	callback and continue writing data, as only the read part has been shut
90	down.	204	down.
91		205
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	206	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<$!> set to <0>.	207	set, then a fatal error will be raised with C<$!> 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		208
146	=item on_drain => $cb->($handle)	209	=item on_drain => $cb->($handle)
147		210
148	This sets the callback that is called when the write buffer becomes empty	211	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).	212	(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	219	memory and push it into the queue, but instead only read more data from
157	the file when the write queue becomes empty.	220	the file when the write queue becomes empty.
158		221
159	=item timeout => $fractional_seconds	222	=item timeout => $fractional_seconds
160		223
		224	=item rtimeout => $fractional_seconds
		225
		226	=item wtimeout => $fractional_seconds
		227
161	If non-zero, then this enables an "inactivity" timeout: whenever this many	228	If non-zero, then these enables an "inactivity" timeout: whenever this
162	seconds pass without a successful read or write on the underlying file	229	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	230	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).	231	will be invoked (and if that one is missing, a non-fatal C<ETIMEDOUT>
		232	error will be raised).
		233
		234	There are three variants of the timeouts that work fully independent
		235	of each other, for both read and write, just read, and just write:
		236	C<timeout>, C<rtimeout> and C<wtimeout>, with corresponding callbacks
		237	C<on_timeout>, C<on_rtimeout> and C<on_wtimeout>, and reset functions
		238	C<timeout_reset>, C<rtimeout_reset>, and C<wtimeout_reset>.
165		239
166	Note that timeout processing is also active when you currently do not have	240	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	241	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	242	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	243	in the C<on_timeout> callback, in which case AnyEvent::Handle will simply
…		…
348		422
349	sub new {	423	sub new {
350	my $class = shift;	424	my $class = shift;
351	my $self = bless { @_ }, $class;	425	my $self = bless { @_ }, $class;
352		426
353	$self->{fh} or Carp::croak "mandatory argument fh is missing";	427	if ($self->{fh}) {
		428	$self->_start;
		429	return unless $self->{fh}; # could be gone by now
		430
		431	} elsif ($self->{connect}) {
		432	require AnyEvent::Socket;
		433
		434	$self->{peername} = $self->{connect}[0]
		435	unless exists $self->{peername};
		436
		437	$self->{_skip_drain_rbuf} = 1;
		438
		439	{
		440	Scalar::Util::weaken (my $self = $self);
		441
		442	$self->{_connect} =
		443	AnyEvent::Socket::tcp_connect (
		444	$self->{connect}[0],
		445	$self->{connect}[1],
		446	sub {
		447	my ($fh, $host, $port, $retry) = @_;
		448
		449	if ($fh) {
		450	$self->{fh} = $fh;
		451
		452	delete $self->{_skip_drain_rbuf};
		453	$self->_start;
		454
		455	$self->{on_connect}
		456	and $self->{on_connect}($self, $host, $port, sub {
		457	delete @$self{qw(fh _tw _ww _rw _eof _queue rbuf _wbuf tls _tls_rbuf _tls_wbuf)};
		458	$self->{_skip_drain_rbuf} = 1;
		459	&$retry;
		460	});
		461
		462	} else {
		463	if ($self->{on_connect_error}) {
		464	$self->{on_connect_error}($self, "$!");
		465	$self->destroy;
		466	} else {
		467	$self->_error ($!, 1);
		468	}
		469	}
		470	},
		471	sub {
		472	local $self->{fh} = $_[0];
		473
		474	$self->{on_prepare}
		475	? $self->{on_prepare}->($self)
		476	: ()
		477	}
		478	);
		479	}
		480
		481	} else {
		482	Carp::croak "AnyEvent::Handle: either an existing fh or the connect parameter must be specified";
		483	}
		484
		485	$self
		486	}
		487
		488	sub _start {
		489	my ($self) = @_;
354		490
355	AnyEvent::Util::fh_nonblocking $self->{fh}, 1;	491	AnyEvent::Util::fh_nonblocking $self->{fh}, 1;
356		492
		493	$self->{_activity} =
		494	$self->{_ractivity} =
357	$self->{_activity} = AnyEvent->now;	495	$self->{_wactivity} = AE::now;
358	$self->_timeout;	496
		497	$self->timeout (delete $self->{timeout} ) if $self->{timeout};
		498	$self->rtimeout (delete $self->{rtimeout}) if $self->{rtimeout};
		499	$self->wtimeout (delete $self->{wtimeout}) if $self->{wtimeout};
359		500
360	$self->no_delay (delete $self->{no_delay}) if exists $self->{no_delay};	501	$self->no_delay (delete $self->{no_delay}) if exists $self->{no_delay};
361		502
362	$self->starttls (delete $self->{tls}, delete $self->{tls_ctx})	503	$self->starttls (delete $self->{tls}, delete $self->{tls_ctx})
363	if $self->{tls};	504	if $self->{tls};
364		505
365	$self->on_drain (delete $self->{on_drain}) if $self->{on_drain};	506	$self->on_drain (delete $self->{on_drain}) if $self->{on_drain};
366		507
367	$self->start_read	508	$self->start_read
368	if $self->{on_read};	509	if $self->{on_read} \|\| @{ $self->{_queue} };
369		510
370	$self->{fh} && $self	511	$self->_drain_wbuf;
371	}	512	}
372		513
373	#sub _shutdown {	514	#sub _shutdown {
374	# my ($self) = @_;	515	# my ($self) = @_;
375	#	516	#
…		…
385	$! = $errno;	526	$! = $errno;
386	$message \|\|= "$!";	527	$message \|\|= "$!";
387		528
388	if ($self->{on_error}) {	529	if ($self->{on_error}) {
389	$self->{on_error}($self, $fatal, $message);	530	$self->{on_error}($self, $fatal, $message);
390	$self->destroy;	531	$self->destroy if $fatal;
391	} elsif ($self->{fh}) {	532	} elsif ($self->{fh}) {
392	$self->destroy;	533	$self->destroy;
393	Carp::croak "AnyEvent::Handle uncaught error: $message";	534	Carp::croak "AnyEvent::Handle uncaught error: $message";
394	}	535	}
395	}	536	}
…		…
422	$_[0]{on_eof} = $_[1];	563	$_[0]{on_eof} = $_[1];
423	}	564	}
424		565
425	=item $handle->on_timeout ($cb)	566	=item $handle->on_timeout ($cb)
426		567
427	Replace the current C<on_timeout> callback, or disables the callback (but	568	=item $handle->on_rtimeout ($cb)
428	not the timeout) if C<$cb> = C<undef>. See the C<timeout> constructor
429	argument and method.
430		569
431	=cut	570	=item $handle->on_wtimeout ($cb)
432		571
433	sub on_timeout {	572	Replace the current C<on_timeout>, C<on_rtimeout> or C<on_wtimeout>
434	$_[0]{on_timeout} = $_[1];	573	callback, or disables the callback (but not the timeout) if C<$cb> =
435	}	574	C<undef>. See the C<timeout> constructor argument and method.
		575
		576	=cut
		577
		578	# see below
436		579
437	=item $handle->autocork ($boolean)	580	=item $handle->autocork ($boolean)
438		581
439	Enables or disables the current autocork behaviour (see C<autocork>	582	Enables or disables the current autocork behaviour (see C<autocork>
440	constructor argument). Changes will only take effect on the next write.	583	constructor argument). Changes will only take effect on the next write.
…		…
455	sub no_delay {	598	sub no_delay {
456	$_[0]{no_delay} = $_[1];	599	$_[0]{no_delay} = $_[1];
457		600
458	eval {	601	eval {
459	local $SIG{__DIE__};	602	local $SIG{__DIE__};
460	setsockopt $_[0]{fh}, &Socket::IPPROTO_TCP, &Socket::TCP_NODELAY, int $_[1];	603	setsockopt $_[0]{fh}, &Socket::IPPROTO_TCP, &Socket::TCP_NODELAY, int $_[1]
		604	if $_[0]{fh};
461	};	605	};
462	}	606	}
463		607
464	=item $handle->on_starttls ($cb)	608	=item $handle->on_starttls ($cb)
465		609
…		…
479		623
480	sub on_starttls {	624	sub on_starttls {
481	$_[0]{on_stoptls} = $_[1];	625	$_[0]{on_stoptls} = $_[1];
482	}	626	}
483		627
		628	=item $handle->rbuf_max ($max_octets)
		629
		630	Configures the C<rbuf_max> setting (C<undef> disables it).
		631
		632	=cut
		633
		634	sub rbuf_max {
		635	$_[0]{rbuf_max} = $_[1];
		636	}
		637
484	#############################################################################	638	#############################################################################
485		639
486	=item $handle->timeout ($seconds)	640	=item $handle->timeout ($seconds)
487		641
		642	=item $handle->rtimeout ($seconds)
		643
		644	=item $handle->wtimeout ($seconds)
		645
488	Configures (or disables) the inactivity timeout.	646	Configures (or disables) the inactivity timeout.
489		647
490	=cut	648	=item $handle->timeout_reset
491		649
492	sub timeout {	650	=item $handle->rtimeout_reset
		651
		652	=item $handle->wtimeout_reset
		653
		654	Reset the activity timeout, as if data was received or sent.
		655
		656	These methods are cheap to call.
		657
		658	=cut
		659
		660	for my $dir ("", "r", "w") {
		661	my $timeout = "${dir}timeout";
		662	my $tw = "_${dir}tw";
		663	my $on_timeout = "on_${dir}timeout";
		664	my $activity = "_${dir}activity";
		665	my $cb;
		666
		667	*$on_timeout = sub {
		668	$_[0]{$on_timeout} = $_[1];
		669	};
		670
		671	*$timeout = sub {
493	my ($self, $timeout) = @_;	672	my ($self, $new_value) = @_;
494		673
495	$self->{timeout} = $timeout;	674	$self->{$timeout} = $new_value;
496	$self->_timeout;	675	delete $self->{$tw}; &$cb;
497	}	676	};
498		677
		678	*{"${dir}timeout_reset"} = sub {
		679	$_[0]{$activity} = AE::now;
		680	};
		681
		682	# main workhorse:
499	# reset the timeout watcher, as neccessary	683	# reset the timeout watcher, as neccessary
500	# also check for time-outs	684	# also check for time-outs
501	sub _timeout {	685	$cb = sub {
502	my ($self) = @_;	686	my ($self) = @_;
503		687
504	if ($self->{timeout}) {	688	if ($self->{$timeout} && $self->{fh}) {
505	my $NOW = AnyEvent->now;	689	my $NOW = AE::now;
506		690
507	# when would the timeout trigger?	691	# when would the timeout trigger?
508	my $after = $self->{_activity} + $self->{timeout} - $NOW;	692	my $after = $self->{$activity} + $self->{$timeout} - $NOW;
509		693
510	# now or in the past already?	694	# now or in the past already?
511	if ($after <= 0) {	695	if ($after <= 0) {
512	$self->{_activity} = $NOW;	696	$self->{$activity} = $NOW;
513		697
514	if ($self->{on_timeout}) {	698	if ($self->{$on_timeout}) {
515	$self->{on_timeout}($self);	699	$self->{$on_timeout}($self);
516	} else {	700	} else {
517	$self->_error (&Errno::ETIMEDOUT);	701	$self->_error (Errno::ETIMEDOUT);
		702	}
		703
		704	# callback could have changed timeout value, optimise
		705	return unless $self->{$timeout};
		706
		707	# calculate new after
		708	$after = $self->{$timeout};
518	}	709	}
519		710
520	# callback could have changed timeout value, optimise	711	Scalar::Util::weaken $self;
521	return unless $self->{timeout};	712	return unless $self; # ->error could have destroyed $self
522		713
523	# calculate new after	714	$self->{$tw} \|\|= AE::timer $after, 0, sub {
524	$after = $self->{timeout};	715	delete $self->{$tw};
		716	$cb->($self);
		717	};
		718	} else {
		719	delete $self->{$tw};
525	}	720	}
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	}	721	}
537	}	722	}
538		723
539	#############################################################################	724	#############################################################################
540		725
…		…
588	my $len = syswrite $self->{fh}, $self->{wbuf};	773	my $len = syswrite $self->{fh}, $self->{wbuf};
589		774
590	if (defined $len) {	775	if (defined $len) {
591	substr $self->{wbuf}, 0, $len, "";	776	substr $self->{wbuf}, 0, $len, "";
592		777
593	$self->{_activity} = AnyEvent->now;	778	$self->{_activity} = $self->{_wactivity} = AE::now;
594		779
595	$self->{on_drain}($self)	780	$self->{on_drain}($self)
596	if $self->{low_water_mark} >= (length $self->{wbuf}) + (length $self->{_tls_wbuf})	781	if $self->{low_water_mark} >= (length $self->{wbuf}) + (length $self->{_tls_wbuf})
597	&& $self->{on_drain};	782	&& $self->{on_drain};
598		783
…		…
604		789
605	# try to write data immediately	790	# try to write data immediately
606	$cb->() unless $self->{autocork};	791	$cb->() unless $self->{autocork};
607		792
608	# if still data left in wbuf, we need to poll	793	# if still data left in wbuf, we need to poll
609	$self->{_ww} = AnyEvent->io (fh => $self->{fh}, poll => "w", cb => $cb)	794	$self->{_ww} = AE::io $self->{fh}, 1, $cb
610	if length $self->{wbuf};	795	if length $self->{wbuf};
611	};	796	};
612	}	797	}
613		798
614	our %WH;	799	our %WH;
…		…
627	->($self, @_);	812	->($self, @_);
628	}	813	}
629		814
630	if ($self->{tls}) {	815	if ($self->{tls}) {
631	$self->{_tls_wbuf} .= $_[0];	816	$self->{_tls_wbuf} .= $_[0];
632		817	&_dotls ($self) if $self->{fh};
633	&_dotls ($self);
634	} else {	818	} else {
635	$self->{wbuf} .= $_[0];	819	$self->{wbuf} .= $_[0];
636	$self->_drain_wbuf;	820	$self->_drain_wbuf if $self->{fh};
637	}	821	}
638	}	822	}
639		823
640	=item $handle->push_write (type => @args)	824	=item $handle->push_write (type => @args)
641		825
…		…
858	=cut	1042	=cut
859		1043
860	sub _drain_rbuf {	1044	sub _drain_rbuf {
861	my ($self) = @_;	1045	my ($self) = @_;
862		1046
		1047	# avoid recursion
		1048	return if $self->{_skip_drain_rbuf};
863	local $self->{_in_drain} = 1;	1049	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		1050
872	while () {	1051	while () {
873	# we need to use a separate tls read buffer, as we must not receive data while	1052	# 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.	1053	# we are draining the buffer, and this can only happen with TLS.
875	$self->{rbuf} .= delete $self->{_tls_rbuf} if exists $self->{_tls_rbuf};	1054	$self->{rbuf} .= delete $self->{_tls_rbuf}
		1055	if exists $self->{_tls_rbuf};
876		1056
877	my $len = length $self->{rbuf};	1057	my $len = length $self->{rbuf};
878		1058
879	if (my $cb = shift @{ $self->{_queue} }) {	1059	if (my $cb = shift @{ $self->{_queue} }) {
880	unless ($cb->($self)) {	1060	unless ($cb->($self)) {
881	if ($self->{_eof}) {	1061	# no progress can be made
882	# no progress can be made (not enough data and no data forthcoming)	1062	# (not enough data and no data forthcoming)
883	$self->_error (&Errno::EPIPE, 1), return;	1063	$self->_error (Errno::EPIPE, 1), return
884	}	1064	if $self->{_eof};
885		1065
886	unshift @{ $self->{_queue} }, $cb;	1066	unshift @{ $self->{_queue} }, $cb;
887	last;	1067	last;
888	}	1068	}
889	} elsif ($self->{on_read}) {	1069	} elsif ($self->{on_read}) {
…		…
896	&& !@{ $self->{_queue} } # and the queue is still empty	1076	&& !@{ $self->{_queue} } # and the queue is still empty
897	&& $self->{on_read} # but we still have on_read	1077	&& $self->{on_read} # but we still have on_read
898	) {	1078	) {
899	# no further data will arrive	1079	# no further data will arrive
900	# so no progress can be made	1080	# so no progress can be made
901	$self->_error (&Errno::EPIPE, 1), return	1081	$self->_error (Errno::EPIPE, 1), return
902	if $self->{_eof};	1082	if $self->{_eof};
903		1083
904	last; # more data might arrive	1084	last; # more data might arrive
905	}	1085	}
906	} else {	1086	} else {
…		…
909	last;	1089	last;
910	}	1090	}
911	}	1091	}
912		1092
913	if ($self->{_eof}) {	1093	if ($self->{_eof}) {
914	if ($self->{on_eof}) {	1094	$self->{on_eof}
915	$self->{on_eof}($self)	1095	? $self->{on_eof}($self)
916	} else {
917	$self->_error (0, 1, "Unexpected end-of-file");	1096	: $self->_error (0, 1, "Unexpected end-of-file");
918	}	1097
		1098	return;
		1099	}
		1100
		1101	if (
		1102	defined $self->{rbuf_max}
		1103	&& $self->{rbuf_max} < length $self->{rbuf}
		1104	) {
		1105	$self->_error (Errno::ENOSPC, 1), return;
919	}	1106	}
920		1107
921	# may need to restart read watcher	1108	# may need to restart read watcher
922	unless ($self->{_rw}) {	1109	unless ($self->{_rw}) {
923	$self->start_read	1110	$self->start_read
…		…
935		1122
936	sub on_read {	1123	sub on_read {
937	my ($self, $cb) = @_;	1124	my ($self, $cb) = @_;
938		1125
939	$self->{on_read} = $cb;	1126	$self->{on_read} = $cb;
940	$self->_drain_rbuf if $cb && !$self->{_in_drain};	1127	$self->_drain_rbuf if $cb;
941	}	1128	}
942		1129
943	=item $handle->rbuf	1130	=item $handle->rbuf
944		1131
945	Returns the read buffer (as a modifiable lvalue).	1132	Returns the read buffer (as a modifiable lvalue).
…		…
997	$cb = ($RH{$type} or Carp::croak "unsupported type passed to AnyEvent::Handle::push_read")	1184	$cb = ($RH{$type} or Carp::croak "unsupported type passed to AnyEvent::Handle::push_read")
998	->($self, $cb, @_);	1185	->($self, $cb, @_);
999	}	1186	}
1000		1187
1001	push @{ $self->{_queue} }, $cb;	1188	push @{ $self->{_queue} }, $cb;
1002	$self->_drain_rbuf unless $self->{_in_drain};	1189	$self->_drain_rbuf;
1003	}	1190	}
1004		1191
1005	sub unshift_read {	1192	sub unshift_read {
1006	my $self = shift;	1193	my $self = shift;
1007	my $cb = pop;	1194	my $cb = pop;
…		…
1013	->($self, $cb, @_);	1200	->($self, $cb, @_);
1014	}	1201	}
1015		1202
1016		1203
1017	unshift @{ $self->{_queue} }, $cb;	1204	unshift @{ $self->{_queue} }, $cb;
1018	$self->_drain_rbuf unless $self->{_in_drain};	1205	$self->_drain_rbuf;
1019	}	1206	}
1020		1207
1021	=item $handle->push_read (type => @args, $cb)	1208	=item $handle->push_read (type => @args, $cb)
1022		1209
1023	=item $handle->unshift_read (type => @args, $cb)	1210	=item $handle->unshift_read (type => @args, $cb)
…		…
1156	return 1;	1343	return 1;
1157	}	1344	}
1158		1345
1159	# reject	1346	# reject
1160	if ($reject && $$rbuf =~ $reject) {	1347	if ($reject && $$rbuf =~ $reject) {
1161	$self->_error (&Errno::EBADMSG);	1348	$self->_error (Errno::EBADMSG);
1162	}	1349	}
1163		1350
1164	# skip	1351	# skip
1165	if ($skip && $$rbuf =~ $skip) {	1352	if ($skip && $$rbuf =~ $skip) {
1166	$data .= substr $$rbuf, 0, $+[0], "";	1353	$data .= substr $$rbuf, 0, $+[0], "";
…		…
1182	my ($self, $cb) = @_;	1369	my ($self, $cb) = @_;
1183		1370
1184	sub {	1371	sub {
1185	unless ($_[0]{rbuf} =~ s/^(0\|[1-9][0-9]*)://) {	1372	unless ($_[0]{rbuf} =~ s/^(0\|[1-9][0-9]*)://) {
1186	if ($_[0]{rbuf} =~ /[^0-9]/) {	1373	if ($_[0]{rbuf} =~ /[^0-9]/) {
1187	$self->_error (&Errno::EBADMSG);	1374	$self->_error (Errno::EBADMSG);
1188	}	1375	}
1189	return;	1376	return;
1190	}	1377	}
1191		1378
1192	my $len = $1;	1379	my $len = $1;
…		…
1195	my $string = $_[1];	1382	my $string = $_[1];
1196	$_[0]->unshift_read (chunk => 1, sub {	1383	$_[0]->unshift_read (chunk => 1, sub {
1197	if ($_[1] eq ",") {	1384	if ($_[1] eq ",") {
1198	$cb->($_[0], $string);	1385	$cb->($_[0], $string);
1199	} else {	1386	} else {
1200	$self->_error (&Errno::EBADMSG);	1387	$self->_error (Errno::EBADMSG);
1201	}	1388	}
1202	});	1389	});
1203	});	1390	});
1204		1391
1205	1	1392	1
…		…
1295	$json->incr_skip;	1482	$json->incr_skip;
1296		1483
1297	$self->{rbuf} = $json->incr_text;	1484	$self->{rbuf} = $json->incr_text;
1298	$json->incr_text = "";	1485	$json->incr_text = "";
1299		1486
1300	$self->_error (&Errno::EBADMSG);	1487	$self->_error (Errno::EBADMSG);
1301		1488
1302	()	1489	()
1303	} else {	1490	} else {
1304	$self->{rbuf} = "";	1491	$self->{rbuf} = "";
1305		1492
…		…
1342	# read remaining chunk	1529	# read remaining chunk
1343	$_[0]->unshift_read (chunk => $len, sub {	1530	$_[0]->unshift_read (chunk => $len, sub {
1344	if (my $ref = eval { Storable::thaw ($_[1]) }) {	1531	if (my $ref = eval { Storable::thaw ($_[1]) }) {
1345	$cb->($_[0], $ref);	1532	$cb->($_[0], $ref);
1346	} else {	1533	} else {
1347	$self->_error (&Errno::EBADMSG);	1534	$self->_error (Errno::EBADMSG);
1348	}	1535	}
1349	});	1536	});
1350	}	1537	}
1351		1538
1352	1	1539	1
…		…
1404	my ($self) = @_;	1591	my ($self) = @_;
1405		1592
1406	unless ($self->{_rw} \|\| $self->{_eof}) {	1593	unless ($self->{_rw} \|\| $self->{_eof}) {
1407	Scalar::Util::weaken $self;	1594	Scalar::Util::weaken $self;
1408		1595
1409	$self->{_rw} = AnyEvent->io (fh => $self->{fh}, poll => "r", cb => sub {	1596	$self->{_rw} = AE::io $self->{fh}, 0, sub {
1410	my $rbuf = \($self->{tls} ? my $buf : $self->{rbuf});	1597	my $rbuf = \($self->{tls} ? my $buf : $self->{rbuf});
1411	my $len = sysread $self->{fh}, $$rbuf, $self->{read_size} \|\| 8192, length $$rbuf;	1598	my $len = sysread $self->{fh}, $$rbuf, $self->{read_size} \|\| 8192, length $$rbuf;
1412		1599
1413	if ($len > 0) {	1600	if ($len > 0) {
1414	$self->{_activity} = AnyEvent->now;	1601	$self->{_activity} = $self->{_ractivity} = AE::now;
1415		1602
1416	if ($self->{tls}) {	1603	if ($self->{tls}) {
1417	Net::SSLeay::BIO_write ($self->{_rbio}, $$rbuf);	1604	Net::SSLeay::BIO_write ($self->{_rbio}, $$rbuf);
1418		1605
1419	&_dotls ($self);	1606	&_dotls ($self);
1420	} else {	1607	} else {
1421	$self->_drain_rbuf unless $self->{_in_drain};	1608	$self->_drain_rbuf;
1422	}	1609	}
1423		1610
1424	} elsif (defined $len) {	1611	} elsif (defined $len) {
1425	delete $self->{_rw};	1612	delete $self->{_rw};
1426	$self->{_eof} = 1;	1613	$self->{_eof} = 1;
1427	$self->_drain_rbuf unless $self->{_in_drain};	1614	$self->_drain_rbuf;
1428		1615
1429	} elsif ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK) {	1616	} elsif ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK) {
1430	return $self->_error ($!, 1);	1617	return $self->_error ($!, 1);
1431	}	1618	}
1432	});	1619	};
1433	}	1620	}
1434	}	1621	}
1435		1622
1436	our $ERROR_SYSCALL;	1623	our $ERROR_SYSCALL;
1437	our $ERROR_WANT_READ;	1624	our $ERROR_WANT_READ;
…		…
1450	if ($self->{_on_starttls}) {	1637	if ($self->{_on_starttls}) {
1451	(delete $self->{_on_starttls})->($self, undef, $err);	1638	(delete $self->{_on_starttls})->($self, undef, $err);
1452	&_freetls;	1639	&_freetls;
1453	} else {	1640	} else {
1454	&_freetls;	1641	&_freetls;
1455	$self->_error (&Errno::EPROTO, 1, $err);	1642	$self->_error (Errno::EPROTO, 1, $err);
1456	}	1643	}
1457	}	1644	}
1458		1645
1459	# poll the write BIO and send the data if applicable	1646	# poll the write BIO and send the data if applicable
1460	# also decode read data if possible	1647	# also decode read data if possible
…		…
1492	$self->{_eof} = 1;	1679	$self->{_eof} = 1;
1493	}	1680	}
1494	}	1681	}
1495		1682
1496	$self->{_tls_rbuf} .= $tmp;	1683	$self->{_tls_rbuf} .= $tmp;
1497	$self->_drain_rbuf unless $self->{_in_drain};	1684	$self->_drain_rbuf;
1498	$self->{tls} or return; # tls session might have gone away in callback	1685	$self->{tls} or return; # tls session might have gone away in callback
1499	}	1686	}
1500		1687
1501	$tmp = Net::SSLeay::get_error ($self->{tls}, -1);	1688	$tmp = Net::SSLeay::get_error ($self->{tls}, -1);
1502	return $self->_tls_error ($tmp)	1689	return $self->_tls_error ($tmp)
…		…
1517		1704
1518	Instead of starting TLS negotiation immediately when the AnyEvent::Handle	1705	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	1706	object is created, you can also do that at a later time by calling
1520	C<starttls>.	1707	C<starttls>.
1521		1708
		1709	Starting TLS is currently an asynchronous operation - when you push some
		1710	write data and then call C<< ->starttls >> then TLS negotiation will start
		1711	immediately, after which the queued write data is then sent.
		1712
1522	The first argument is the same as the C<tls> constructor argument (either	1713	The first argument is the same as the C<tls> constructor argument (either
1523	C<"connect">, C<"accept"> or an existing Net::SSLeay object).	1714	C<"connect">, C<"accept"> or an existing Net::SSLeay object).
1524		1715
1525	The second argument is the optional C<AnyEvent::TLS> object that is used	1716	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	1717	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	1721	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	1722	context in C<< $handle->{tls_ctx} >> after this call and can be used or
1532	changed to your liking. Note that the handshake might have already started	1723	changed to your liking. Note that the handshake might have already started
1533	when this function returns.	1724	when this function returns.
1534		1725
1535	If it an error to start a TLS handshake more than once per	1726	Due to bugs in OpenSSL, it might or might not be possible to do multiple
1536	AnyEvent::Handle object (this is due to bugs in OpenSSL).	1727	handshakes on the same stream. Best do not attempt to use the stream after
		1728	stopping TLS.
1537		1729
1538	=cut	1730	=cut
1539		1731
1540	our %TLS_CACHE; #TODO not yet documented, should we?	1732	our %TLS_CACHE; #TODO not yet documented, should we?
1541		1733
1542	sub starttls {	1734	sub starttls {
1543	my ($self, $ssl, $ctx) = @_;	1735	my ($self, $tls, $ctx) = @_;
		1736
		1737	Carp::croak "It is an error to call starttls on an AnyEvent::Handle object while TLS is already active, caught"
		1738	if $self->{tls};
		1739
		1740	$self->{tls} = $tls;
		1741	$self->{tls_ctx} = $ctx if @_ > 2;
		1742
		1743	return unless $self->{fh};
1544		1744
1545	require Net::SSLeay;	1745	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		1746
1550	$ERROR_SYSCALL = Net::SSLeay::ERROR_SYSCALL ();	1747	$ERROR_SYSCALL = Net::SSLeay::ERROR_SYSCALL ();
1551	$ERROR_WANT_READ = Net::SSLeay::ERROR_WANT_READ ();	1748	$ERROR_WANT_READ = Net::SSLeay::ERROR_WANT_READ ();
1552		1749
		1750	$tls = $self->{tls};
1553	$ctx \|\|= $self->{tls_ctx};	1751	$ctx = $self->{tls_ctx};
		1752
		1753	local $Carp::CarpLevel = 1; # skip ourselves when creating a new context or session
1554		1754
1555	if ("HASH" eq ref $ctx) {	1755	if ("HASH" eq ref $ctx) {
1556	require AnyEvent::TLS;	1756	require AnyEvent::TLS;
1557
1558	local $Carp::CarpLevel = 1; # skip ourselves when creating a new context
1559		1757
1560	if ($ctx->{cache}) {	1758	if ($ctx->{cache}) {
1561	my $key = $ctx+0;	1759	my $key = $ctx+0;
1562	$ctx = $TLS_CACHE{$key} \|\|= new AnyEvent::TLS %$ctx;	1760	$ctx = $TLS_CACHE{$key} \|\|= new AnyEvent::TLS %$ctx;
1563	} else {	1761	} else {
1564	$ctx = new AnyEvent::TLS %$ctx;	1762	$ctx = new AnyEvent::TLS %$ctx;
1565	}	1763	}
1566	}	1764	}
1567		1765
1568	$self->{tls_ctx} = $ctx \|\| TLS_CTX ();	1766	$self->{tls_ctx} = $ctx \|\| TLS_CTX ();
1569	$self->{tls} = $ssl = $self->{tls_ctx}->_get_session ($ssl, $self, $self->{peername});	1767	$self->{tls} = $tls = $self->{tls_ctx}->_get_session ($tls, $self, $self->{peername});
1570		1768
1571	# basically, this is deep magic (because SSL_read should have the same issues)	1769	# basically, this is deep magic (because SSL_read should have the same issues)
1572	# but the openssl maintainers basically said: "trust us, it just works".	1770	# but the openssl maintainers basically said: "trust us, it just works".
1573	# (unfortunately, we have to hardcode constants because the abysmally misdesigned	1771	# (unfortunately, we have to hardcode constants because the abysmally misdesigned
1574	# and mismaintained ssleay-module doesn't even offer them).	1772	# and mismaintained ssleay-module doesn't even offer them).
…		…
1581	# and we drive openssl fully in blocking mode here. Or maybe we don't - openssl seems to	1779	# and we drive openssl fully in blocking mode here. Or maybe we don't - openssl seems to
1582	# have identity issues in that area.	1780	# have identity issues in that area.
1583	# Net::SSLeay::CTX_set_mode ($ssl,	1781	# Net::SSLeay::CTX_set_mode ($ssl,
1584	# (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE () } \|\| 1)	1782	# (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE () } \|\| 1)
1585	# \| (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER () } \|\| 2));	1783	# \| (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER () } \|\| 2));
1586	Net::SSLeay::CTX_set_mode ($ssl, 1\|2);	1784	Net::SSLeay::CTX_set_mode ($tls, 1\|2);
1587		1785
1588	$self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());	1786	$self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
1589	$self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());	1787	$self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
1590		1788
		1789	Net::SSLeay::BIO_write ($self->{_rbio}, delete $self->{rbuf});
		1790
1591	Net::SSLeay::set_bio ($ssl, $self->{_rbio}, $self->{_wbio});	1791	Net::SSLeay::set_bio ($tls, $self->{_rbio}, $self->{_wbio});
1592		1792
1593	$self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) }	1793	$self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) }
1594	if $self->{on_starttls};	1794	if $self->{on_starttls};
1595		1795
1596	&_dotls; # need to trigger the initial handshake	1796	&_dotls; # need to trigger the initial handshake
…		…
1599		1799
1600	=item $handle->stoptls	1800	=item $handle->stoptls
1601		1801
1602	Shuts down the SSL connection - this makes a proper EOF handshake by	1802	Shuts down the SSL connection - this makes a proper EOF handshake by
1603	sending a close notify to the other side, but since OpenSSL doesn't	1803	sending a close notify to the other side, but since OpenSSL doesn't
1604	support non-blocking shut downs, it is not possible to re-use the stream	1804	support non-blocking shut downs, it is not guarenteed that you can re-use
1605	afterwards.	1805	the stream afterwards.
1606		1806
1607	=cut	1807	=cut
1608		1808
1609	sub stoptls {	1809	sub stoptls {
1610	my ($self) = @_;	1810	my ($self) = @_;
…		…
1623	sub _freetls {	1823	sub _freetls {
1624	my ($self) = @_;	1824	my ($self) = @_;
1625		1825
1626	return unless $self->{tls};	1826	return unless $self->{tls};
1627		1827
1628	$self->{tls_ctx}->_put_session (delete $self->{tls});	1828	$self->{tls_ctx}->_put_session (delete $self->{tls})
		1829	if $self->{tls} > 0;
1629		1830
1630	delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};	1831	delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};
1631	}	1832	}
1632		1833
1633	sub DESTROY {	1834	sub DESTROY {
…		…
1635		1836
1636	&_freetls;	1837	&_freetls;
1637		1838
1638	my $linger = exists $self->{linger} ? $self->{linger} : 3600;	1839	my $linger = exists $self->{linger} ? $self->{linger} : 3600;
1639		1840
1640	if ($linger && length $self->{wbuf}) {	1841	if ($linger && length $self->{wbuf} && $self->{fh}) {
1641	my $fh = delete $self->{fh};	1842	my $fh = delete $self->{fh};
1642	my $wbuf = delete $self->{wbuf};	1843	my $wbuf = delete $self->{wbuf};
1643		1844
1644	my @linger;	1845	my @linger;
1645		1846
1646	push @linger, AnyEvent->io (fh => $fh, poll => "w", cb => sub {	1847	push @linger, AE::io $fh, 1, sub {
1647	my $len = syswrite $fh, $wbuf, length $wbuf;	1848	my $len = syswrite $fh, $wbuf, length $wbuf;
1648		1849
1649	if ($len > 0) {	1850	if ($len > 0) {
1650	substr $wbuf, 0, $len, "";	1851	substr $wbuf, 0, $len, "";
1651	} else {	1852	} else {
1652	@linger = (); # end	1853	@linger = (); # end
1653	}	1854	}
1654	});	1855	};
1655	push @linger, AnyEvent->timer (after => $linger, cb => sub {	1856	push @linger, AE::timer $linger, 0, sub {
1656	@linger = ();	1857	@linger = ();
1657	});	1858	};
1658	}	1859	}
1659	}	1860	}
1660		1861
1661	=item $handle->destroy	1862	=item $handle->destroy
1662		1863
1663	Shuts down the handle object as much as possible - this call ensures that	1864	Shuts down the handle object as much as possible - this call ensures that
1664	no further callbacks will be invoked and as many resources as possible	1865	no further callbacks will be invoked and as many resources as possible
1665	will be freed. You must not call any methods on the object afterwards.	1866	will be freed. Any method you will call on the handle object after
		1867	destroying it in this way will be silently ignored (and it will return the
		1868	empty list).
1666		1869
1667	Normally, you can just "forget" any references to an AnyEvent::Handle	1870	Normally, you can just "forget" any references to an AnyEvent::Handle
1668	object and it will simply shut down. This works in fatal error and EOF	1871	object and it will simply shut down. This works in fatal error and EOF
1669	callbacks, as well as code outside. It does I<NOT> work in a read or write	1872	callbacks, as well as code outside. It does I<NOT> work in a read or write
1670	callback, so when you want to destroy the AnyEvent::Handle object from	1873	callback, so when you want to destroy the AnyEvent::Handle object from
…		…
1684	sub destroy {	1887	sub destroy {
1685	my ($self) = @_;	1888	my ($self) = @_;
1686		1889
1687	$self->DESTROY;	1890	$self->DESTROY;
1688	%$self = ();	1891	%$self = ();
		1892	bless $self, "AnyEvent::Handle::destroyed";
		1893	}
		1894
		1895	sub AnyEvent::Handle::destroyed::AUTOLOAD {
		1896	#nop
1689	}	1897	}
1690		1898
1691	=item AnyEvent::Handle::TLS_CTX	1899	=item AnyEvent::Handle::TLS_CTX
1692		1900
1693	This function creates and returns the AnyEvent::TLS object used by default	1901	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 1.176 by root, Sun Aug 9 00:20:35 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 1.176 by root, Sun Aug 9 00:20:35 2009 UTC