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

Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents):
Revision 1.231 by root, Tue Mar 27 23:47:57 2012 UTC vs.
Revision 1.255 by root, Wed Jul 29 13:02:48 2020 UTC

…		…
11		11
12	my $hdl; $hdl = new AnyEvent::Handle	12	my $hdl; $hdl = new AnyEvent::Handle
13	fh => \*STDIN,	13	fh => \*STDIN,
14	on_error => sub {	14	on_error => sub {
15	my ($hdl, $fatal, $msg) = @_;	15	my ($hdl, $fatal, $msg) = @_;
16	AE::log error => "Got error $msg!";	16	AE::log error => $msg;
17	$hdl->destroy;	17	$hdl->destroy;
18	$cv->send;	18	$cv->send;
19	};	19	};
20		20
21	# send some request line	21	# send some request line
…		…
30		30
31	$cv->recv;	31	$cv->recv;
32		32
33	=head1 DESCRIPTION	33	=head1 DESCRIPTION
34		34
35	This is a helper module to make it easier to do event-based I/O on	35	This is a helper module to make it easier to do event-based I/O
36	stream-based filehandles (sockets, pipes, and other stream things).	36	on stream-based filehandles (sockets, pipes, and other stream
		37	things). Specifically, it doesn't work as expected on files, packet-based
		38	sockets or similar things.
37		39
38	The L<AnyEvent::Intro> tutorial contains some well-documented	40	The L<AnyEvent::Intro> tutorial contains some well-documented
39	AnyEvent::Handle examples.	41	AnyEvent::Handle examples.
40		42
41	In the following, where the documentation refers to "bytes", it means	43	In the following, where the documentation refers to "bytes", it means
…		…
53	package AnyEvent::Handle;	55	package AnyEvent::Handle;
54		56
55	use Scalar::Util ();	57	use Scalar::Util ();
56	use List::Util ();	58	use List::Util ();
57	use Carp ();	59	use Carp ();
58	use Errno qw(EAGAIN EINTR);	60	use Errno qw(EAGAIN EWOULDBLOCK EINTR);
59		61
60	use AnyEvent (); BEGIN { AnyEvent::common_sense }	62	use AnyEvent (); BEGIN { AnyEvent::common_sense }
61	use AnyEvent::Util qw(WSAEWOULDBLOCK);	63	use AnyEvent::Util qw(WSAEWOULDBLOCK);
62		64
63	our $VERSION = $AnyEvent::VERSION;	65	our $VERSION = $AnyEvent::VERSION;
…		…
91		93
92	=item fh => $filehandle [C<fh> or C<connect> MANDATORY]	94	=item fh => $filehandle [C<fh> or C<connect> MANDATORY]
93		95
94	The filehandle this L<AnyEvent::Handle> object will operate on.	96	The filehandle this L<AnyEvent::Handle> object will operate on.
95	NOTE: The filehandle will be set to non-blocking mode (using	97	NOTE: The filehandle will be set to non-blocking mode (using
96	C<AnyEvent::Util::fh_nonblocking>) by the constructor and needs to stay in	98	C<AnyEvent::fh_unblock>) by the constructor and needs to stay in
97	that mode.	99	that mode.
98		100
99	=item connect => [$host, $service] [C<fh> or C<connect> MANDATORY]	101	=item connect => [$host, $service] [C<fh> or C<connect> MANDATORY]
100		102
101	Try to connect to the specified host and service (port), using	103	Try to connect to the specified host and service (port), using
…		…
131		133
132	The peer's numeric host and port (the socket peername) are passed as	134	The peer's numeric host and port (the socket peername) are passed as
133	parameters, together with a retry callback. At the time it is called the	135	parameters, together with a retry callback. At the time it is called the
134	read and write queues, EOF status, TLS status and similar properties of	136	read and write queues, EOF status, TLS status and similar properties of
135	the handle will have been reset.	137	the handle will have been reset.
136
137	It is not allowed to use the read or write queues while the handle object
138	is connecting.
139		138
140	If, for some reason, the handle is not acceptable, calling C<$retry> will	139	If, for some reason, the handle is not acceptable, calling C<$retry> will
141	continue with the next connection target (in case of multi-homed hosts or	140	continue with the next connection target (in case of multi-homed hosts or
142	SRV records there can be multiple connection endpoints). The C<$retry>	141	SRV records there can be multiple connection endpoints). The C<$retry>
143	callback can be invoked after the connect callback returns, i.e. one can	142	callback can be invoked after the connect callback returns, i.e. one can
…		…
170	with active (but unsatisfiable) read watchers (C<EPIPE>) or I/O errors. In	169	with active (but unsatisfiable) read watchers (C<EPIPE>) or I/O errors. In
171	cases where the other side can close the connection at will, it is	170	cases where the other side can close the connection at will, it is
172	often easiest to not report C<EPIPE> errors in this callback.	171	often easiest to not report C<EPIPE> errors in this callback.
173		172
174	AnyEvent::Handle tries to find an appropriate error code for you to check	173	AnyEvent::Handle tries to find an appropriate error code for you to check
175	against, but in some cases (TLS errors), this does not work well. It is	174	against, but in some cases (TLS errors), this does not work well.
176	recommended to always output the C<$message> argument in human-readable	175
177	error messages (it's usually the same as C<"$!">).	176	If you report the error to the user, it is recommended to always output
		177	the C<$message> argument in human-readable error messages (you don't need
		178	to report C<"$!"> if you report C<$message>).
		179
		180	If you want to react programmatically to the error, then looking at C<$!>
		181	and comparing it against some of the documented C<Errno> values is usually
		182	better than looking at the C<$message>.
178		183
179	Non-fatal errors can be retried by returning, but it is recommended	184	Non-fatal errors can be retried by returning, but it is recommended
180	to simply ignore this parameter and instead abondon the handle object	185	to simply ignore this parameter and instead abondon the handle object
181	when this callback is invoked. Examples of non-fatal errors are timeouts	186	when this callback is invoked. Examples of non-fatal errors are timeouts
182	C<ETIMEDOUT>) or badly-formatted data (C<EBADMSG>).	187	C<ETIMEDOUT>) or badly-formatted data (C<EBADMSG>).
…		…
423	appropriate error message.	428	appropriate error message.
424		429
425	TLS mode requires Net::SSLeay to be installed (it will be loaded	430	TLS mode requires Net::SSLeay to be installed (it will be loaded
426	automatically when you try to create a TLS handle): this module doesn't	431	automatically when you try to create a TLS handle): this module doesn't
427	have a dependency on that module, so if your module requires it, you have	432	have a dependency on that module, so if your module requires it, you have
428	to add the dependency yourself.	433	to add the dependency yourself. If Net::SSLeay cannot be loaded or is too
		434	old, you get an C<EPROTO> error.
429		435
430	Unlike TCP, TLS has a server and client side: for the TLS server side, use	436	Unlike TCP, TLS has a server and client side: for the TLS server side, use
431	C<accept>, and for the TLS client side of a connection, use C<connect>	437	C<accept>, and for the TLS client side of a connection, use C<connect>
432	mode.	438	mode.
433		439
…		…
489	callback.	495	callback.
490		496
491	This callback will only be called on TLS shutdowns, not when the	497	This callback will only be called on TLS shutdowns, not when the
492	underlying handle signals EOF.	498	underlying handle signals EOF.
493		499
494	=item json => JSON or JSON::XS object	500	=item json => L<JSON>, L<JSON::PP> or L<JSON::XS> object
495		501
496	This is the json coder object used by the C<json> read and write types.	502	This is the json coder object used by the C<json> read and write types.
497		503
498	If you don't supply it, then AnyEvent::Handle will create and use a	504	If you don't supply it, then AnyEvent::Handle will create and use a
499	suitable one (on demand), which will write and expect UTF-8 encoded JSON	505	suitable one (on demand), which will write and expect UTF-8 encoded
		506	JSON texts (either using L<JSON::XS> or L<JSON>). The written texts are
		507	guaranteed not to contain any newline character.
		508
		509	For security reasons, this encoder will likely I<not> handle numbers and
		510	strings, only arrays and objects/hashes. The reason is that originally
		511	JSON was self-delimited, but Dougles Crockford thought it was a splendid
		512	idea to redefine JSON incompatibly, so this is no longer true.
		513
		514	For protocols that used back-to-back JSON texts, this might lead to
		515	run-ins, where two or more JSON texts will be interpreted as one JSON
500	texts.	516	text.
501		517
		518	For this reason, if the default encoder uses L<JSON::XS>, it will default
		519	to not allowing anything but arrays and objects/hashes, at least for the
		520	forseeable future (it will change at some point). This might or might not
		521	be true for the L<JSON> module, so this might cause a security issue.
		522
		523	If you depend on either behaviour, you should create your own json object
		524	and pass it in explicitly.
		525
		526	=item cbor => L<CBOR::XS> object
		527
		528	This is the cbor coder object used by the C<cbor> read and write types.
		529
		530	If you don't supply it, then AnyEvent::Handle will create and use a
		531	suitable one (on demand), which will write CBOR without using extensions,
		532	if possible.
		533
502	Note that you are responsible to depend on the JSON module if you want to	534	Note that you are responsible to depend on the L<CBOR::XS> module if you
503	use this functionality, as AnyEvent does not have a dependency itself.	535	want to use this functionality, as AnyEvent does not have a dependency on
		536	it itself.
504		537
505	=back	538	=back
506		539
507	=cut	540	=cut
508		541
…		…
550	} else {	583	} else {
551	if ($self->{on_connect_error}) {	584	if ($self->{on_connect_error}) {
552	$self->{on_connect_error}($self, "$!");	585	$self->{on_connect_error}($self, "$!");
553	$self->destroy if $self;	586	$self->destroy if $self;
554	} else {	587	} else {
555	$self->_error ($!, 1);	588	$self->error ($!, 1);
556	}	589	}
557	}	590	}
558	},	591	},
559	sub {	592	sub {
560	local $self->{fh} = $_[0];	593	local $self->{fh} = $_[0];
…		…
580	# with AnyEvent::Handle, do them a favour.	613	# with AnyEvent::Handle, do them a favour.
581	my $type = getsockopt $self->{fh}, Socket::SOL_SOCKET (), Socket::SO_TYPE ();	614	my $type = getsockopt $self->{fh}, Socket::SOL_SOCKET (), Socket::SO_TYPE ();
582	Carp::croak "AnyEvent::Handle: only stream sockets supported, anything else will NOT work!"	615	Carp::croak "AnyEvent::Handle: only stream sockets supported, anything else will NOT work!"
583	if Socket::SOCK_STREAM () != (unpack "I", $type) && defined $type;	616	if Socket::SOCK_STREAM () != (unpack "I", $type) && defined $type;
584		617
585	AnyEvent::Util::fh_nonblocking $self->{fh}, 1;	618	AnyEvent::fh_unblock $self->{fh};
586		619
587	$self->{_activity} =	620	$self->{_activity} =
588	$self->{_ractivity} =	621	$self->{_ractivity} =
589	$self->{_wactivity} = AE::now;	622	$self->{_wactivity} = AE::now;
590		623
…		…
610	if $self->{on_read} \|\| @{ $self->{_queue} };	643	if $self->{on_read} \|\| @{ $self->{_queue} };
611		644
612	$self->_drain_wbuf;	645	$self->_drain_wbuf;
613	}	646	}
614		647
		648	=item $handle->error ($errno[, $fatal[, $message]])
		649
		650	Generates an error event, just like AnyEvent::Handle itself would do, i.e.
		651	calls the C<on_error> callback.
		652
		653	Te only rerquired parameter is C<$errno>, which sets C<$!>. C<$fatal>
		654	defaults to false and C<$message> defaults to the stringified version
		655	of C<$1>.
		656
		657	Example: generate C<EIO> when you read unexpected data.
		658
		659	$handle->push_read (line => sub {
		660	$_[1] eq "hello"
		661	or return $handle->error (Errno::EIO);
		662	});
		663
		664	=cut
		665
615	sub _error {	666	sub error {
616	my ($self, $errno, $fatal, $message) = @_;	667	my ($self, $errno, $fatal, $message) = @_;
617		668
618	$! = $errno;	669	$! = $errno;
619	$message \|\|= "$!";	670	$message \|\|= "$!";
620		671
…		…
726	setsockopt $_[0]{fh}, Socket::SOL_SOCKET (), Socket::SO_OOBINLINE (), int $_[1]	777	setsockopt $_[0]{fh}, Socket::SOL_SOCKET (), Socket::SO_OOBINLINE (), int $_[1]
727	if $_[0]{fh};	778	if $_[0]{fh};
728	};	779	};
729	}	780	}
730		781
731	=item $handle->keepalive ($boolean)
732
733	Enables or disables the C<keepalive> setting (see constructor argument of
734	the same name for details).
735
736	=cut
737
738	sub keepalive {
739	$_[0]{keepalive} = $_[1];
740
741	eval {
742	local $SIG{__DIE__};
743	setsockopt $_[0]{fh}, Socket::SOL_SOCKET (), Socket::SO_KEEPALIVE (), int $_[1]
744	if $_[0]{fh};
745	};
746	}
747
748	=item $handle->on_starttls ($cb)	782	=item $handle->on_starttls ($cb)
749		783
750	Replace the current C<on_starttls> callback (see the C<on_starttls> constructor argument).	784	Replace the current C<on_starttls> callback (see the C<on_starttls> constructor argument).
751		785
752	=cut	786	=cut
…		…
850	$self->{$activity} = $NOW;	884	$self->{$activity} = $NOW;
851		885
852	if ($self->{$on_timeout}) {	886	if ($self->{$on_timeout}) {
853	$self->{$on_timeout}($self);	887	$self->{$on_timeout}($self);
854	} else {	888	} else {
855	$self->_error (Errno::ETIMEDOUT);	889	$self->error (Errno::ETIMEDOUT);
856	}	890	}
857		891
858	# callback could have changed timeout value, optimise	892	# callback could have changed timeout value, optimise
859	return unless $self->{$timeout};	893	return unless $self->{$timeout};
860		894
…		…
940	$self->{on_drain}($self)	974	$self->{on_drain}($self)
941	if $self->{low_water_mark} >= (length $self->{wbuf}) + (length $self->{_tls_wbuf})	975	if $self->{low_water_mark} >= (length $self->{wbuf}) + (length $self->{_tls_wbuf})
942	&& $self->{on_drain};	976	&& $self->{on_drain};
943		977
944	delete $self->{_ww} unless length $self->{wbuf};	978	delete $self->{_ww} unless length $self->{wbuf};
945	} elsif ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK) {	979	} elsif ($! != EAGAIN && $! != EINTR && $! != EWOULDBLOCK && $! != WSAEWOULDBLOCK) {
946	$self->_error ($!, 1);	980	$self->error ($!, 1);
947	}	981	}
948	};	982	};
949		983
950	# try to write data immediately	984	# try to write data immediately
951	$cb->() unless $self->{autocork};	985	$cb->() unless $self->{autocork};
…		…
956		990
957	if (	991	if (
958	defined $self->{wbuf_max}	992	defined $self->{wbuf_max}
959	&& $self->{wbuf_max} < length $self->{wbuf}	993	&& $self->{wbuf_max} < length $self->{wbuf}
960	) {	994	) {
961	$self->_error (Errno::ENOSPC, 1), return;	995	$self->error (Errno::ENOSPC, 1), return;
962	}	996	}
963	};	997	};
964	}	998	}
965		999
966	our %WH;	1000	our %WH;
…		…
1038		1072
1039	Encodes the given hash or array reference into a JSON object. Unless you	1073	Encodes the given hash or array reference into a JSON object. Unless you
1040	provide your own JSON object, this means it will be encoded to JSON text	1074	provide your own JSON object, this means it will be encoded to JSON text
1041	in UTF-8.	1075	in UTF-8.
1042		1076
		1077	The default encoder might or might not handle every type of JSON value -
		1078	it might be limited to arrays and objects for security reasons. See the
		1079	C<json> constructor attribute for more details.
		1080
1043	JSON objects (and arrays) are self-delimiting, so you can write JSON at	1081	JSON objects (and arrays) are self-delimiting, so if you only use arrays
1044	one end of a handle and read them at the other end without using any	1082	and hashes, you can write JSON at one end of a handle and read them at the
1045	additional framing.	1083	other end without using any additional framing.
1046		1084
1047	The generated JSON text is guaranteed not to contain any newlines: While	1085	The JSON text generated by the default encoder is guaranteed not to
1048	this module doesn't need delimiters after or between JSON texts to be	1086	contain any newlines: While this module doesn't need delimiters after or
1049	able to read them, many other languages depend on that.	1087	between JSON texts to be able to read them, many other languages depend on
		1088	them.
1050		1089
1051	A simple RPC protocol that interoperates easily with others is to send	1090	A simple RPC protocol that interoperates easily with other languages is
1052	JSON arrays (or objects, although arrays are usually the better choice as	1091	to send JSON arrays (or objects, although arrays are usually the better
1053	they mimic how function argument passing works) and a newline after each	1092	choice as they mimic how function argument passing works) and a newline
1054	JSON text:	1093	after each JSON text:
1055		1094
1056	$handle->push_write (json => ["method", "arg1", "arg2"]); # whatever	1095	$handle->push_write (json => ["method", "arg1", "arg2"]); # whatever
1057	$handle->push_write ("\012");	1096	$handle->push_write ("\012");
1058		1097
1059	An AnyEvent::Handle receiver would simply use the C<json> read type and	1098	An AnyEvent::Handle receiver would simply use the C<json> read type and
…		…
1062	$handle->push_read (json => sub { my $array = $_[1]; ... });	1101	$handle->push_read (json => sub { my $array = $_[1]; ... });
1063		1102
1064	Other languages could read single lines terminated by a newline and pass	1103	Other languages could read single lines terminated by a newline and pass
1065	this line into their JSON decoder of choice.	1104	this line into their JSON decoder of choice.
1066		1105
		1106	=item cbor => $perl_scalar
		1107
		1108	Encodes the given scalar into a CBOR value. Unless you provide your own
		1109	L<CBOR::XS> object, this means it will be encoded to a CBOR string not
		1110	using any extensions, if possible.
		1111
		1112	CBOR values are self-delimiting, so you can write CBOR at one end of
		1113	a handle and read them at the other end without using any additional
		1114	framing.
		1115
		1116	A simple nd very very fast RPC protocol that interoperates with
		1117	other languages is to send CBOR and receive CBOR values (arrays are
		1118	recommended):
		1119
		1120	$handle->push_write (cbor => ["method", "arg1", "arg2"]); # whatever
		1121
		1122	An AnyEvent::Handle receiver would simply use the C<cbor> read type:
		1123
		1124	$handle->push_read (cbor => sub { my $array = $_[1]; ... });
		1125
1067	=cut	1126	=cut
1068		1127
1069	sub json_coder() {	1128	sub json_coder() {
1070	eval { require JSON::XS; JSON::XS->new->utf8 }	1129	eval { require JSON::XS; JSON::XS->new->utf8 }
1071	\|\| do { require JSON; JSON->new->utf8 }	1130	\|\| do { require JSON::PP; JSON::PP->new->utf8 }
1072	}	1131	}
1073		1132
1074	register_write_type json => sub {	1133	register_write_type json => sub {
1075	my ($self, $ref) = @_;	1134	my ($self, $ref) = @_;
1076		1135
1077	my $json = $self->{json} \|\|= json_coder;	1136	($self->{json} \|\|= json_coder)
1078
1079	$json->encode ($ref)	1137	->encode ($ref)
		1138	};
		1139
		1140	sub cbor_coder() {
		1141	require CBOR::XS;
		1142	CBOR::XS->new
		1143	}
		1144
		1145	register_write_type cbor => sub {
		1146	my ($self, $scalar) = @_;
		1147
		1148	($self->{cbor} \|\|= cbor_coder)
		1149	->encode ($scalar)
1080	};	1150	};
1081		1151
1082	=item storable => $reference	1152	=item storable => $reference
1083		1153
1084	Freezes the given reference using L<Storable> and writes it to the	1154	Freezes the given reference using L<Storable> and writes it to the
…		…
1261		1331
1262	if (my $cb = shift @{ $self->{_queue} }) {	1332	if (my $cb = shift @{ $self->{_queue} }) {
1263	unless ($cb->($self)) {	1333	unless ($cb->($self)) {
1264	# no progress can be made	1334	# no progress can be made
1265	# (not enough data and no data forthcoming)	1335	# (not enough data and no data forthcoming)
1266	$self->_error (Errno::EPIPE, 1), return	1336	$self->error (Errno::EPIPE, 1), return
1267	if $self->{_eof};	1337	if $self->{_eof};
1268		1338
1269	unshift @{ $self->{_queue} }, $cb;	1339	unshift @{ $self->{_queue} }, $cb;
1270	last;	1340	last;
1271	}	1341	}
…		…
1279	&& !@{ $self->{_queue} } # and the queue is still empty	1349	&& !@{ $self->{_queue} } # and the queue is still empty
1280	&& $self->{on_read} # but we still have on_read	1350	&& $self->{on_read} # but we still have on_read
1281	) {	1351	) {
1282	# no further data will arrive	1352	# no further data will arrive
1283	# so no progress can be made	1353	# so no progress can be made
1284	$self->_error (Errno::EPIPE, 1), return	1354	$self->error (Errno::EPIPE, 1), return
1285	if $self->{_eof};	1355	if $self->{_eof};
1286		1356
1287	last; # more data might arrive	1357	last; # more data might arrive
1288	}	1358	}
1289	} else {	1359	} else {
…		…
1294	}	1364	}
1295		1365
1296	if ($self->{_eof}) {	1366	if ($self->{_eof}) {
1297	$self->{on_eof}	1367	$self->{on_eof}
1298	? $self->{on_eof}($self)	1368	? $self->{on_eof}($self)
1299	: $self->_error (0, 1, "Unexpected end-of-file");	1369	: $self->error (0, 1, "Unexpected end-of-file");
1300		1370
1301	return;	1371	return;
1302	}	1372	}
1303		1373
1304	if (	1374	if (
1305	defined $self->{rbuf_max}	1375	defined $self->{rbuf_max}
1306	&& $self->{rbuf_max} < length $self->{rbuf}	1376	&& $self->{rbuf_max} < length $self->{rbuf}
1307	) {	1377	) {
1308	$self->_error (Errno::ENOSPC, 1), return;	1378	$self->error (Errno::ENOSPC, 1), return;
1309	}	1379	}
1310		1380
1311	# may need to restart read watcher	1381	# may need to restart read watcher
1312	unless ($self->{_rw}) {	1382	unless ($self->{_rw}) {
1313	$self->start_read	1383	$self->start_read
…		…
1478		1548
1479	register_read_type line => sub {	1549	register_read_type line => sub {
1480	my ($self, $cb, $eol) = @_;	1550	my ($self, $cb, $eol) = @_;
1481		1551
1482	if (@_ < 3) {	1552	if (@_ < 3) {
1483	# this is more than twice as fast as the generic code below	1553	# this is faster then the generic code below
1484	sub {	1554	sub {
1485	$_[0]{rbuf} =~ s/^([^\015\012]*)(\015?\012)// or return;	1555	(my $pos = index $_[0]{rbuf}, "\012") >= 0
		1556	or return;
1486		1557
		1558	(my $str = substr $_[0]{rbuf}, 0, $pos + 1, "") =~ s/(\015?\012)\Z// or die;
1487	$cb->($_[0], "$1", "$2");	1559	$cb->($_[0], $str, "$1");
1488	1	1560	1
1489	}	1561	}
1490	} else {	1562	} else {
1491	$eol = quotemeta $eol unless ref $eol;	1563	$eol = quotemeta $eol unless ref $eol;
1492	$eol = qr\|^(.*?)($eol)\|s;	1564	$eol = qr\|^(.*?)($eol)\|s;
…		…
1501	};	1573	};
1502		1574
1503	=item regex => $accept[, $reject[, $skip], $cb->($handle, $data)	1575	=item regex => $accept[, $reject[, $skip], $cb->($handle, $data)
1504		1576
1505	Makes a regex match against the regex object C<$accept> and returns	1577	Makes a regex match against the regex object C<$accept> and returns
1506	everything up to and including the match.	1578	everything up to and including the match. All the usual regex variables
		1579	($1, %+ etc.) from the regex match are available in the callback.
1507		1580
1508	Example: read a single line terminated by '\n'.	1581	Example: read a single line terminated by '\n'.
1509		1582
1510	$handle->push_read (regex => qr<\n>, sub { ... });	1583	$handle->push_read (regex => qr<\n>, sub { ... });
1511		1584
…		…
1556	return 1;	1629	return 1;
1557	}	1630	}
1558		1631
1559	# reject	1632	# reject
1560	if ($reject && $$rbuf =~ $reject) {	1633	if ($reject && $$rbuf =~ $reject) {
1561	$_[0]->_error (Errno::EBADMSG);	1634	$_[0]->error (Errno::EBADMSG);
1562	}	1635	}
1563		1636
1564	# skip	1637	# skip
1565	if ($skip && $$rbuf =~ $skip) {	1638	if ($skip && $$rbuf =~ $skip) {
1566	$data .= substr $$rbuf, 0, $+[0], "";	1639	$data .= substr $$rbuf, 0, $+[0], "";
…		…
1582	my ($self, $cb) = @_;	1655	my ($self, $cb) = @_;
1583		1656
1584	sub {	1657	sub {
1585	unless ($_[0]{rbuf} =~ s/^(0\|[1-9][0-9]*)://) {	1658	unless ($_[0]{rbuf} =~ s/^(0\|[1-9][0-9]*)://) {
1586	if ($_[0]{rbuf} =~ /[^0-9]/) {	1659	if ($_[0]{rbuf} =~ /[^0-9]/) {
1587	$_[0]->_error (Errno::EBADMSG);	1660	$_[0]->error (Errno::EBADMSG);
1588	}	1661	}
1589	return;	1662	return;
1590	}	1663	}
1591		1664
1592	my $len = $1;	1665	my $len = $1;
…		…
1595	my $string = $_[1];	1668	my $string = $_[1];
1596	$_[0]->unshift_read (chunk => 1, sub {	1669	$_[0]->unshift_read (chunk => 1, sub {
1597	if ($_[1] eq ",") {	1670	if ($_[1] eq ",") {
1598	$cb->($_[0], $string);	1671	$cb->($_[0], $string);
1599	} else {	1672	} else {
1600	$_[0]->_error (Errno::EBADMSG);	1673	$_[0]->error (Errno::EBADMSG);
1601	}	1674	}
1602	});	1675	});
1603	});	1676	});
1604		1677
1605	1	1678	1
…		…
1655	=item json => $cb->($handle, $hash_or_arrayref)	1728	=item json => $cb->($handle, $hash_or_arrayref)
1656		1729
1657	Reads a JSON object or array, decodes it and passes it to the	1730	Reads a JSON object or array, decodes it and passes it to the
1658	callback. When a parse error occurs, an C<EBADMSG> error will be raised.	1731	callback. When a parse error occurs, an C<EBADMSG> error will be raised.
1659		1732
1660	If a C<json> object was passed to the constructor, then that will be used	1733	If a C<json> object was passed to the constructor, then that will be
1661	for the final decode, otherwise it will create a JSON coder expecting UTF-8.	1734	used for the final decode, otherwise it will create a L<JSON::XS> or
		1735	L<JSON::PP> coder object expecting UTF-8.
1662		1736
1663	This read type uses the incremental parser available with JSON version	1737	This read type uses the incremental parser available with JSON version
1664	2.09 (and JSON::XS version 2.2) and above. You have to provide a	1738	2.09 (and JSON::XS version 2.2) and above.
1665	dependency on your own: this module will load the JSON module, but
1666	AnyEvent does not depend on it itself.
1667		1739
1668	Since JSON texts are fully self-delimiting, the C<json> read and write	1740	Since JSON texts are fully self-delimiting, the C<json> read and write
1669	types are an ideal simple RPC protocol: just exchange JSON datagrams. See	1741	types are an ideal simple RPC protocol: just exchange JSON datagrams. See
1670	the C<json> write type description, above, for an actual example.	1742	the C<json> write type description, above, for an actual example.
1671		1743
…		…
1675	my ($self, $cb) = @_;	1747	my ($self, $cb) = @_;
1676		1748
1677	my $json = $self->{json} \|\|= json_coder;	1749	my $json = $self->{json} \|\|= json_coder;
1678		1750
1679	my $data;	1751	my $data;
1680	my $rbuf = \$self->{rbuf};
1681		1752
1682	sub {	1753	sub {
1683	my $ref = eval { $json->incr_parse ($_[0]{rbuf}) };	1754	my $ref = eval { $json->incr_parse ($_[0]{rbuf}) };
1684		1755
1685	if ($ref) {	1756	if ($ref) {
…		…
1693	$json->incr_skip;	1764	$json->incr_skip;
1694		1765
1695	$_[0]{rbuf} = $json->incr_text;	1766	$_[0]{rbuf} = $json->incr_text;
1696	$json->incr_text = "";	1767	$json->incr_text = "";
1697		1768
1698	$_[0]->_error (Errno::EBADMSG);	1769	$_[0]->error (Errno::EBADMSG);
1699		1770
1700	()	1771	()
1701	} else {	1772	} else {
1702	$_[0]{rbuf} = "";	1773	$_[0]{rbuf} = "";
1703		1774
		1775	()
		1776	}
		1777	}
		1778	};
		1779
		1780	=item cbor => $cb->($handle, $scalar)
		1781
		1782	Reads a CBOR value, decodes it and passes it to the callback. When a parse
		1783	error occurs, an C<EBADMSG> error will be raised.
		1784
		1785	If a L<CBOR::XS> object was passed to the constructor, then that will be
		1786	used for the final decode, otherwise it will create a CBOR coder without
		1787	enabling any options.
		1788
		1789	You have to provide a dependency to L<CBOR::XS> on your own: this module
		1790	will load the L<CBOR::XS> module, but AnyEvent does not depend on it
		1791	itself.
		1792
		1793	Since CBOR values are fully self-delimiting, the C<cbor> read and write
		1794	types are an ideal simple RPC protocol: just exchange CBOR datagrams. See
		1795	the C<cbor> write type description, above, for an actual example.
		1796
		1797	=cut
		1798
		1799	register_read_type cbor => sub {
		1800	my ($self, $cb) = @_;
		1801
		1802	my $cbor = $self->{cbor} \|\|= cbor_coder;
		1803
		1804	my $data;
		1805
		1806	sub {
		1807	my (@value) = eval { $cbor->incr_parse ($_[0]{rbuf}) };
		1808
		1809	if (@value) {
		1810	$cb->($_[0], @value);
		1811
		1812	1
		1813	} elsif ($@) {
		1814	# error case
		1815	$cbor->incr_reset;
		1816
		1817	$_[0]->error (Errno::EBADMSG);
		1818
		1819	()
		1820	} else {
1704	()	1821	()
1705	}	1822	}
1706	}	1823	}
1707	};	1824	};
1708		1825
…		…
1730		1847
1731	# bypass unshift if we already have the remaining chunk	1848	# bypass unshift if we already have the remaining chunk
1732	if ($format + $len <= length $_[0]{rbuf}) {	1849	if ($format + $len <= length $_[0]{rbuf}) {
1733	my $data = substr $_[0]{rbuf}, $format, $len;	1850	my $data = substr $_[0]{rbuf}, $format, $len;
1734	substr $_[0]{rbuf}, 0, $format + $len, "";	1851	substr $_[0]{rbuf}, 0, $format + $len, "";
		1852
1735	$cb->($_[0], Storable::thaw ($data));	1853	eval { $cb->($_[0], Storable::thaw ($data)); 1 }
		1854	or return $_[0]->error (Errno::EBADMSG);
1736	} else {	1855	} else {
1737	# remove prefix	1856	# remove prefix
1738	substr $_[0]{rbuf}, 0, $format, "";	1857	substr $_[0]{rbuf}, 0, $format, "";
1739		1858
1740	# read remaining chunk	1859	# read remaining chunk
1741	$_[0]->unshift_read (chunk => $len, sub {	1860	$_[0]->unshift_read (chunk => $len, sub {
1742	if (my $ref = eval { Storable::thaw ($_[1]) }) {	1861	eval { $cb->($_[0], Storable::thaw ($_[1])); 1 }
1743	$cb->($_[0], $ref);
1744	} else {
1745	$_[0]->_error (Errno::EBADMSG);	1862	or $_[0]->error (Errno::EBADMSG);
1746	}
1747	});	1863	});
1748	}	1864	}
1749		1865
1750	1	1866	1
1751	}	1867	}
		1868	};
		1869
		1870	=item tls_detect => $cb->($handle, $detect, $major, $minor)
		1871
		1872	Checks the input stream for a valid SSL or TLS handshake TLSPaintext
		1873	record without consuming anything. Only SSL version 3 or higher
		1874	is handled, up to the fictituous protocol 4.x (but both SSL3+ and
		1875	SSL2-compatible framing is supported).
		1876
		1877	If it detects that the input data is likely TLS, it calls the callback
		1878	with a true value for C<$detect> and the (on-wire) TLS version as second
		1879	and third argument (C<$major> is C<3>, and C<$minor> is 0..4 for SSL
		1880	3.0, TLS 1.0, 1.1, 1.2 and 1.3, respectively). If it detects the input
		1881	to be definitely not TLS, it calls the callback with a false value for
		1882	C<$detect>.
		1883
		1884	The callback could use this information to decide whether or not to start
		1885	TLS negotiation.
		1886
		1887	In all cases the data read so far is passed to the following read
		1888	handlers.
		1889
		1890	Usually you want to use the C<tls_autostart> read type instead.
		1891
		1892	If you want to design a protocol that works in the presence of TLS
		1893	dtection, make sure that any non-TLS data doesn't start with the octet 22
		1894	(ASCII SYN, 16 hex) or 128-255 (i.e. highest bit set). The checks this
		1895	read type does are a bit more strict, but might losen in the future to
		1896	accomodate protocol changes.
		1897
		1898	This read type does not rely on L<AnyEvent::TLS> (and thus, not on
		1899	L<Net::SSLeay>).
		1900
		1901	=item tls_autostart => [$tls_ctx, ]$tls
		1902
		1903	Tries to detect a valid SSL or TLS handshake. If one is detected, it tries
		1904	to start tls by calling C<starttls> with the given arguments.
		1905
		1906	In practice, C<$tls> must be C<accept>, or a Net::SSLeay context that has
		1907	been configured to accept, as servers do not normally send a handshake on
		1908	their own and ths cannot be detected in this way.
		1909
		1910	See C<tls_detect> above for more details.
		1911
		1912	Example: give the client a chance to start TLS before accepting a text
		1913	line.
		1914
		1915	$hdl->push_read (tls_autostart => "accept");
		1916	$hdl->push_read (line => sub {
		1917	print "received ", ($_[0]{tls} ? "encrypted" : "cleartext"), " <$_[1]>\n";
		1918	});
		1919
		1920	=cut
		1921
		1922	register_read_type tls_detect => sub {
		1923	my ($self, $cb) = @_;
		1924
		1925	sub {
		1926	# this regex matches a full or partial tls record
		1927	if (
		1928	# ssl3+: type(22=handshake) major(=3) minor(any) length_hi
		1929	$self->{rbuf} =~ /^(?:\z\| \x16 (\z\| [\x03\x04] (?:\z\| . (?:\z\| [\x00-\x40] ))))/xs
		1930	# ssl2 comapatible: len_hi len_lo type(1) major minor dummy(forlength)
		1931	or $self->{rbuf} =~ /^(?:\z\| [\x80-\xff] (?:\z\| . (?:\z\| \x01 (\z\| [\x03\x04] (?:\z\| . (?:\z\| . ))))))/xs
		1932	) {
		1933	return if 3 != length $1; # partial match, can't decide yet
		1934
		1935	# full match, valid TLS record
		1936	my ($major, $minor) = unpack "CC", $1;
		1937	$cb->($self, "accept", $major, $minor);
		1938	} else {
		1939	# mismatch == guaranteed not TLS
		1940	$cb->($self, undef);
		1941	}
		1942
		1943	1
		1944	}
		1945	};
		1946
		1947	register_read_type tls_autostart => sub {
		1948	my ($self, @tls) = @_;
		1949
		1950	$RH{tls_detect}($self, sub {
		1951	return unless $_[1];
		1952	$_[0]->starttls (@tls);
		1953	})
1752	};	1954	};
1753		1955
1754	=back	1956	=back
1755		1957
1756	=item custom read types - Package::anyevent_read_type $handle, $cb, @args	1958	=item custom read types - Package::anyevent_read_type $handle, $cb, @args
…		…
1840	} elsif (defined $len) {	2042	} elsif (defined $len) {
1841	delete $self->{_rw};	2043	delete $self->{_rw};
1842	$self->{_eof} = 1;	2044	$self->{_eof} = 1;
1843	$self->_drain_rbuf;	2045	$self->_drain_rbuf;
1844		2046
1845	} elsif ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK) {	2047	} elsif ($! != EAGAIN && $! != EINTR && $! != EWOULDBLOCK && $! != WSAEWOULDBLOCK) {
1846	return $self->_error ($!, 1);	2048	return $self->error ($!, 1);
1847	}	2049	}
1848	};	2050	};
1849	}	2051	}
1850	}	2052	}
1851		2053
…		…
1853	our $ERROR_WANT_READ;	2055	our $ERROR_WANT_READ;
1854		2056
1855	sub _tls_error {	2057	sub _tls_error {
1856	my ($self, $err) = @_;	2058	my ($self, $err) = @_;
1857		2059
1858	return $self->_error ($!, 1)	2060	return $self->error ($!, 1)
1859	if $err == Net::SSLeay::ERROR_SYSCALL ();	2061	if $err == Net::SSLeay::ERROR_SYSCALL ();
1860		2062
1861	my $err =Net::SSLeay::ERR_error_string (Net::SSLeay::ERR_get_error ());	2063	my $err = Net::SSLeay::ERR_error_string (Net::SSLeay::ERR_get_error ());
1862		2064
1863	# reduce error string to look less scary	2065	# reduce error string to look less scary
1864	$err =~ s/^error:[0-9a-fA-F]{8}:[^:]+:([^:]+):/\L$1: /;	2066	$err =~ s/^error:[0-9a-fA-F]{8}:[^:]+:([^:]+):/\L$1: /;
1865		2067
1866	if ($self->{_on_starttls}) {	2068	if ($self->{_on_starttls}) {
1867	(delete $self->{_on_starttls})->($self, undef, $err);	2069	(delete $self->{_on_starttls})->($self, undef, $err);
1868	&_freetls;	2070	&_freetls;
1869	} else {	2071	} else {
1870	&_freetls;	2072	&_freetls;
1871	$self->_error (Errno::EPROTO, 1, $err);	2073	$self->error (Errno::EPROTO, 1, $err);
1872	}	2074	}
1873	}	2075	}
1874		2076
1875	# poll the write BIO and send the data if applicable	2077	# poll the write BIO and send the data if applicable
1876	# also decode read data if possible	2078	# also decode read data if possible
1877	# this is basiclaly our TLS state machine	2079	# this is basically our TLS state machine
1878	# more efficient implementations are possible with openssl,	2080	# more efficient implementations are possible with openssl,
1879	# but not with the buggy and incomplete Net::SSLeay.	2081	# but not with the buggy and incomplete Net::SSLeay.
1880	sub _dotls {	2082	sub _dotls {
1881	my ($self) = @_;	2083	my ($self) = @_;
1882		2084
1883	my $tmp;	2085	my $tmp;
1884		2086
1885	if (length $self->{_tls_wbuf}) {	2087	while (length $self->{_tls_wbuf}) {
1886	while (($tmp = Net::SSLeay::write ($self->{tls}, $self->{_tls_wbuf})) > 0) {	2088	if (($tmp = Net::SSLeay::write ($self->{tls}, $self->{_tls_wbuf})) <= 0) {
1887	substr $self->{_tls_wbuf}, 0, $tmp, "";	2089	$tmp = Net::SSLeay::get_error ($self->{tls}, $tmp);
		2090
		2091	return $self->_tls_error ($tmp)
		2092	if $tmp != $ERROR_WANT_READ
		2093	&& ($tmp != $ERROR_SYSCALL \|\| $!);
		2094
		2095	last;
1888	}	2096	}
1889		2097
1890	$tmp = Net::SSLeay::get_error ($self->{tls}, $tmp);	2098	substr $self->{_tls_wbuf}, 0, $tmp, "";
1891	return $self->_tls_error ($tmp)
1892	if $tmp != $ERROR_WANT_READ
1893	&& ($tmp != $ERROR_SYSCALL \|\| $!);
1894	}	2099	}
1895		2100
1896	while (defined ($tmp = Net::SSLeay::read ($self->{tls}))) {	2101	while (defined ($tmp = Net::SSLeay::read ($self->{tls}))) {
1897	unless (length $tmp) {	2102	unless (length $tmp) {
1898	$self->{_on_starttls}	2103	$self->{_on_starttls}
…		…
1912	$self->{_tls_rbuf} .= $tmp;	2117	$self->{_tls_rbuf} .= $tmp;
1913	$self->_drain_rbuf;	2118	$self->_drain_rbuf;
1914	$self->{tls} or return; # tls session might have gone away in callback	2119	$self->{tls} or return; # tls session might have gone away in callback
1915	}	2120	}
1916		2121
1917	$tmp = Net::SSLeay::get_error ($self->{tls}, -1);	2122	$tmp = Net::SSLeay::get_error ($self->{tls}, -1); # -1 is not neccessarily correct, but Net::SSLeay doesn't tell us
1918	return $self->_tls_error ($tmp)	2123	return $self->_tls_error ($tmp)
1919	if $tmp != $ERROR_WANT_READ	2124	if $tmp != $ERROR_WANT_READ
1920	&& ($tmp != $ERROR_SYSCALL \|\| $!);	2125	&& ($tmp != $ERROR_SYSCALL \|\| $!);
1921		2126
1922	while (length ($tmp = Net::SSLeay::BIO_read ($self->{_wbio}))) {	2127	while (length ($tmp = Net::SSLeay::BIO_read ($self->{_wbio}))) {
…		…
1932		2137
1933	=item $handle->starttls ($tls[, $tls_ctx])	2138	=item $handle->starttls ($tls[, $tls_ctx])
1934		2139
1935	Instead of starting TLS negotiation immediately when the AnyEvent::Handle	2140	Instead of starting TLS negotiation immediately when the AnyEvent::Handle
1936	object is created, you can also do that at a later time by calling	2141	object is created, you can also do that at a later time by calling
1937	C<starttls>.	2142	C<starttls>. See the C<tls> constructor argument for general info.
1938		2143
1939	Starting TLS is currently an asynchronous operation - when you push some	2144	Starting TLS is currently an asynchronous operation - when you push some
1940	write data and then call C<< ->starttls >> then TLS negotiation will start	2145	write data and then call C<< ->starttls >> then TLS negotiation will start
1941	immediately, after which the queued write data is then sent.	2146	immediately, after which the queued write data is then sent. This might
		2147	change in future versions, so best make sure you have no outstanding write
		2148	data when calling this method.
1942		2149
1943	The first argument is the same as the C<tls> constructor argument (either	2150	The first argument is the same as the C<tls> constructor argument (either
1944	C<"connect">, C<"accept"> or an existing Net::SSLeay object).	2151	C<"connect">, C<"accept"> or an existing Net::SSLeay object).
1945		2152
1946	The second argument is the optional C<AnyEvent::TLS> object that is used	2153	The second argument is the optional C<AnyEvent::TLS> object that is used
…		…
1968	my ($self, $tls, $ctx) = @_;	2175	my ($self, $tls, $ctx) = @_;
1969		2176
1970	Carp::croak "It is an error to call starttls on an AnyEvent::Handle object while TLS is already active, caught"	2177	Carp::croak "It is an error to call starttls on an AnyEvent::Handle object while TLS is already active, caught"
1971	if $self->{tls};	2178	if $self->{tls};
1972		2179
		2180	unless (defined $AnyEvent::TLS::VERSION) {
		2181	eval {
		2182	require Net::SSLeay;
		2183	require AnyEvent::TLS;
		2184	1
		2185	} or return $self->error (Errno::EPROTO, 1, "TLS support not available on this system");
		2186	}
		2187
1973	$self->{tls} = $tls;	2188	$self->{tls} = $tls;
1974	$self->{tls_ctx} = $ctx if @_ > 2;	2189	$self->{tls_ctx} = $ctx if @_ > 2;
1975		2190
1976	return unless $self->{fh};	2191	return unless $self->{fh};
1977		2192
1978	require Net::SSLeay;
1979
1980	$ERROR_SYSCALL = Net::SSLeay::ERROR_SYSCALL ();	2193	$ERROR_SYSCALL = Net::SSLeay::ERROR_SYSCALL ();
1981	$ERROR_WANT_READ = Net::SSLeay::ERROR_WANT_READ ();	2194	$ERROR_WANT_READ = Net::SSLeay::ERROR_WANT_READ ();
1982		2195
1983	$tls = delete $self->{tls};	2196	$tls = delete $self->{tls};
1984	$ctx = $self->{tls_ctx};	2197	$ctx = $self->{tls_ctx};
1985		2198
1986	local $Carp::CarpLevel = 1; # skip ourselves when creating a new context or session	2199	local $Carp::CarpLevel = 1; # skip ourselves when creating a new context or session
1987		2200
1988	if ("HASH" eq ref $ctx) {	2201	if ("HASH" eq ref $ctx) {
1989	require AnyEvent::TLS;
1990
1991	if ($ctx->{cache}) {	2202	if ($ctx->{cache}) {
1992	my $key = $ctx+0;	2203	my $key = $ctx+0;
1993	$ctx = $TLS_CACHE{$key} \|\|= new AnyEvent::TLS %$ctx;	2204	$ctx = $TLS_CACHE{$key} \|\|= new AnyEvent::TLS %$ctx;
1994	} else {	2205	} else {
1995	$ctx = new AnyEvent::TLS %$ctx;	2206	$ctx = new AnyEvent::TLS %$ctx;
…		…
2000	$self->{tls} = $tls = $self->{tls_ctx}->_get_session ($tls, $self, $self->{peername});	2211	$self->{tls} = $tls = $self->{tls_ctx}->_get_session ($tls, $self, $self->{peername});
2001		2212
2002	# basically, this is deep magic (because SSL_read should have the same issues)	2213	# basically, this is deep magic (because SSL_read should have the same issues)
2003	# but the openssl maintainers basically said: "trust us, it just works".	2214	# but the openssl maintainers basically said: "trust us, it just works".
2004	# (unfortunately, we have to hardcode constants because the abysmally misdesigned	2215	# (unfortunately, we have to hardcode constants because the abysmally misdesigned
2005	# and mismaintained ssleay-module doesn't even offer them).	2216	# and mismaintained ssleay-module didn't offer them for a decade or so).
2006	# http://www.mail-archive.com/openssl-dev@openssl.org/msg22420.html	2217	# http://www.mail-archive.com/openssl-dev@openssl.org/msg22420.html
2007	#	2218	#
2008	# in short: this is a mess.	2219	# in short: this is a mess.
2009	#	2220	#
2010	# note that we do not try to keep the length constant between writes as we are required to do.	2221	# note that we do not try to keep the length constant between writes as we are required to do.
2011	# we assume that most (but not all) of this insanity only applies to non-blocking cases,	2222	# we assume that most (but not all) of this insanity only applies to non-blocking cases,
2012	# and we drive openssl fully in blocking mode here. Or maybe we don't - openssl seems to	2223	# and we drive openssl fully in blocking mode here. Or maybe we don't - openssl seems to
2013	# have identity issues in that area.	2224	# have identity issues in that area.
2014	# Net::SSLeay::CTX_set_mode ($ssl,	2225	# Net::SSLeay::set_mode ($ssl,
2015	# (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE () } \|\| 1)	2226	# (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE () } \|\| 1)
2016	# \| (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER () } \|\| 2));	2227	# \| (eval { local $SIG{__DIE__}; Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER () } \|\| 2));
2017	Net::SSLeay::CTX_set_mode ($tls, 1\|2);	2228	Net::SSLeay::set_mode ($tls, 1\|2);
2018		2229
2019	$self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());	2230	$self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
2020	$self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());	2231	$self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
2021		2232
2022	Net::SSLeay::BIO_write ($self->{_rbio}, $self->{rbuf});	2233	Net::SSLeay::BIO_write ($self->{_rbio}, $self->{rbuf});
…		…
2062		2273
2063	return unless $self->{tls};	2274	return unless $self->{tls};
2064		2275
2065	$self->{tls_ctx}->_put_session (delete $self->{tls})	2276	$self->{tls_ctx}->_put_session (delete $self->{tls})
2066	if $self->{tls} > 0;	2277	if $self->{tls} > 0;
2067		2278
2068	delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};	2279	delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};
2069	}	2280	}
2070		2281
2071	=item $handle->resettls	2282	=item $handle->resettls
2072		2283
…		…
2097	push @linger, AE::io $fh, 1, sub {	2308	push @linger, AE::io $fh, 1, sub {
2098	my $len = syswrite $fh, $wbuf, length $wbuf;	2309	my $len = syswrite $fh, $wbuf, length $wbuf;
2099		2310
2100	if ($len > 0) {	2311	if ($len > 0) {
2101	substr $wbuf, 0, $len, "";	2312	substr $wbuf, 0, $len, "";
2102	} elsif (defined $len \|\| ($! != EAGAIN && $! != EINTR && $! != WSAEWOULDBLOCK)) {	2313	} elsif (defined $len \|\| ($! != EAGAIN && $! != EINTR && $! != EWOULDBLOCK && $! != WSAEWOULDBLOCK)) {
2103	@linger = (); # end	2314	@linger = (); # end
2104	}	2315	}
2105	};	2316	};
2106	push @linger, AE::timer $linger, 0, sub {	2317	push @linger, AE::timer $linger, 0, sub {
2107	@linger = ();	2318	@linger = ();
…		…
2228	handles requests until the server gets some QUIT command, causing it to	2439	handles requests until the server gets some QUIT command, causing it to
2229	close the connection first (highly desirable for a busy TCP server). A	2440	close the connection first (highly desirable for a busy TCP server). A
2230	client dropping the connection is an error, which means this variant can	2441	client dropping the connection is an error, which means this variant can
2231	detect an unexpected detection close.	2442	detect an unexpected detection close.
2232		2443
2233	To handle this case, always make sure you have a on-empty read queue, by	2444	To handle this case, always make sure you have a non-empty read queue, by
2234	pushing the "read request start" handler on it:	2445	pushing the "read request start" handler on it:
2235		2446
2236	# we assume a request starts with a single line	2447	# we assume a request starts with a single line
2237	my @start_request; @start_request = (line => sub {	2448	my @start_request; @start_request = (line => sub {
2238	my ($hdl, $line) = @_;	2449	my ($hdl, $line) = @_;

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Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents): Revision 1.231 by root, Tue Mar 27 23:47:57 2012 UTC vs. Revision 1.255 by root, Wed Jul 29 13:02:48 2020 UTC

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Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents):
Revision 1.231 by root, Tue Mar 27 23:47:57 2012 UTC vs.
Revision 1.255 by root, Wed Jul 29 13:02:48 2020 UTC