| … | |
… | |
| 11 | |
11 | |
| 12 | AnyEvent::Handle - non-blocking I/O on file handles via AnyEvent |
12 | AnyEvent::Handle - non-blocking I/O on file handles via AnyEvent |
| 13 | |
13 | |
| 14 | =cut |
14 | =cut |
| 15 | |
15 | |
| 16 | our $VERSION = 4.86; |
16 | our $VERSION = 4.91; |
| 17 | |
17 | |
| 18 | =head1 SYNOPSIS |
18 | =head1 SYNOPSIS |
| 19 | |
19 | |
| 20 | use AnyEvent; |
20 | use AnyEvent; |
| 21 | use AnyEvent::Handle; |
21 | use AnyEvent::Handle; |
| … | |
… | |
| 101 | attempted, but after the file handle has been created. It could be used to |
101 | attempted, but after the file handle has been created. It could be used to |
| 102 | prepare the file handle with parameters required for the actual connect |
102 | prepare the file handle with parameters required for the actual connect |
| 103 | (as opposed to settings that can be changed when the connection is already |
103 | (as opposed to settings that can be changed when the connection is already |
| 104 | established). |
104 | established). |
| 105 | |
105 | |
|
|
106 | The return value of this callback should be the connect timeout value in |
|
|
107 | seconds (or C<0>, or C<undef>, or the empty list, to indicate the default |
|
|
108 | timeout is to be used). |
|
|
109 | |
| 106 | =item on_connect => $cb->($handle, $host, $port, $retry->()) |
110 | =item on_connect => $cb->($handle, $host, $port, $retry->()) |
| 107 | |
111 | |
| 108 | This callback is called when a connection has been successfully established. |
112 | This callback is called when a connection has been successfully established. |
| 109 | |
113 | |
| 110 | The actual numeric host and port (the socket peername) are passed as |
114 | The actual numeric host and port (the socket peername) are passed as |
| … | |
… | |
| 444 | } else { |
448 | } else { |
| 445 | if ($self->{on_connect_error}) { |
449 | if ($self->{on_connect_error}) { |
| 446 | $self->{on_connect_error}($self, "$!"); |
450 | $self->{on_connect_error}($self, "$!"); |
| 447 | $self->destroy; |
451 | $self->destroy; |
| 448 | } else { |
452 | } else { |
| 449 | $self->fatal ($!, 1); |
453 | $self->_error ($!, 1); |
| 450 | } |
454 | } |
| 451 | } |
455 | } |
| 452 | }, |
456 | }, |
| 453 | sub { |
457 | sub { |
| 454 | local $self->{fh} = $_[0]; |
458 | local $self->{fh} = $_[0]; |
| 455 | |
459 | |
|
|
460 | $self->{on_prepare} |
| 456 | $self->{on_prepare}->($self) |
461 | ? $self->{on_prepare}->($self) |
| 457 | if $self->{on_prepare}; |
462 | : () |
| 458 | } |
463 | } |
| 459 | ); |
464 | ); |
| 460 | } |
465 | } |
| 461 | |
466 | |
| 462 | } else { |
467 | } else { |
| … | |
… | |
| 595 | |
600 | |
| 596 | =cut |
601 | =cut |
| 597 | |
602 | |
| 598 | sub on_starttls { |
603 | sub on_starttls { |
| 599 | $_[0]{on_stoptls} = $_[1]; |
604 | $_[0]{on_stoptls} = $_[1]; |
|
|
605 | } |
|
|
606 | |
|
|
607 | =item $handle->rbuf_max ($max_octets) |
|
|
608 | |
|
|
609 | Configures the C<rbuf_max> setting (C<undef> disables it). |
|
|
610 | |
|
|
611 | =cut |
|
|
612 | |
|
|
613 | sub rbuf_max { |
|
|
614 | $_[0]{rbuf_max} = $_[1]; |
| 600 | } |
615 | } |
| 601 | |
616 | |
| 602 | ############################################################################# |
617 | ############################################################################# |
| 603 | |
618 | |
| 604 | =item $handle->timeout ($seconds) |
619 | =item $handle->timeout ($seconds) |
| … | |
… | |
| 976 | |
991 | |
| 977 | sub _drain_rbuf { |
992 | sub _drain_rbuf { |
| 978 | my ($self) = @_; |
993 | my ($self) = @_; |
| 979 | |
994 | |
| 980 | # avoid recursion |
995 | # avoid recursion |
| 981 | return if exists $self->{_skip_drain_rbuf}; |
996 | return if $self->{_skip_drain_rbuf}; |
| 982 | local $self->{_skip_drain_rbuf} = 1; |
997 | local $self->{_skip_drain_rbuf} = 1; |
| 983 | |
|
|
| 984 | if ( |
|
|
| 985 | defined $self->{rbuf_max} |
|
|
| 986 | && $self->{rbuf_max} < length $self->{rbuf} |
|
|
| 987 | ) { |
|
|
| 988 | $self->_error (Errno::ENOSPC, 1), return; |
|
|
| 989 | } |
|
|
| 990 | |
998 | |
| 991 | while () { |
999 | while () { |
| 992 | # we need to use a separate tls read buffer, as we must not receive data while |
1000 | # we need to use a separate tls read buffer, as we must not receive data while |
| 993 | # we are draining the buffer, and this can only happen with TLS. |
1001 | # we are draining the buffer, and this can only happen with TLS. |
| 994 | $self->{rbuf} .= delete $self->{_tls_rbuf} if exists $self->{_tls_rbuf}; |
1002 | $self->{rbuf} .= delete $self->{_tls_rbuf} |
|
|
1003 | if exists $self->{_tls_rbuf}; |
| 995 | |
1004 | |
| 996 | my $len = length $self->{rbuf}; |
1005 | my $len = length $self->{rbuf}; |
| 997 | |
1006 | |
| 998 | if (my $cb = shift @{ $self->{_queue} }) { |
1007 | if (my $cb = shift @{ $self->{_queue} }) { |
| 999 | unless ($cb->($self)) { |
1008 | unless ($cb->($self)) { |
| 1000 | if ($self->{_eof}) { |
1009 | # no progress can be made |
| 1001 | # no progress can be made (not enough data and no data forthcoming) |
1010 | # (not enough data and no data forthcoming) |
| 1002 | $self->_error (Errno::EPIPE, 1), return; |
1011 | $self->_error (Errno::EPIPE, 1), return |
| 1003 | } |
1012 | if $self->{_eof}; |
| 1004 | |
1013 | |
| 1005 | unshift @{ $self->{_queue} }, $cb; |
1014 | unshift @{ $self->{_queue} }, $cb; |
| 1006 | last; |
1015 | last; |
| 1007 | } |
1016 | } |
| 1008 | } elsif ($self->{on_read}) { |
1017 | } elsif ($self->{on_read}) { |
| … | |
… | |
| 1028 | last; |
1037 | last; |
| 1029 | } |
1038 | } |
| 1030 | } |
1039 | } |
| 1031 | |
1040 | |
| 1032 | if ($self->{_eof}) { |
1041 | if ($self->{_eof}) { |
| 1033 | if ($self->{on_eof}) { |
1042 | $self->{on_eof} |
| 1034 | $self->{on_eof}($self) |
1043 | ? $self->{on_eof}($self) |
| 1035 | } else { |
|
|
| 1036 | $self->_error (0, 1, "Unexpected end-of-file"); |
1044 | : $self->_error (0, 1, "Unexpected end-of-file"); |
| 1037 | } |
1045 | |
|
|
1046 | return; |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | if ( |
|
|
1050 | defined $self->{rbuf_max} |
|
|
1051 | && $self->{rbuf_max} < length $self->{rbuf} |
|
|
1052 | ) { |
|
|
1053 | $self->_error (Errno::ENOSPC, 1), return; |
| 1038 | } |
1054 | } |
| 1039 | |
1055 | |
| 1040 | # may need to restart read watcher |
1056 | # may need to restart read watcher |
| 1041 | unless ($self->{_rw}) { |
1057 | unless ($self->{_rw}) { |
| 1042 | $self->start_read |
1058 | $self->start_read |
| … | |
… | |
| 1716 | Net::SSLeay::CTX_set_mode ($tls, 1|2); |
1732 | Net::SSLeay::CTX_set_mode ($tls, 1|2); |
| 1717 | |
1733 | |
| 1718 | $self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ()); |
1734 | $self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ()); |
| 1719 | $self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ()); |
1735 | $self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ()); |
| 1720 | |
1736 | |
|
|
1737 | Net::SSLeay::BIO_write ($self->{_rbio}, delete $self->{rbuf}); |
|
|
1738 | |
| 1721 | Net::SSLeay::set_bio ($tls, $self->{_rbio}, $self->{_wbio}); |
1739 | Net::SSLeay::set_bio ($tls, $self->{_rbio}, $self->{_wbio}); |
| 1722 | |
1740 | |
| 1723 | $self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) } |
1741 | $self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) } |
| 1724 | if $self->{on_starttls}; |
1742 | if $self->{on_starttls}; |
| 1725 | |
1743 | |
| … | |
… | |
| 1754 | my ($self) = @_; |
1772 | my ($self) = @_; |
| 1755 | |
1773 | |
| 1756 | return unless $self->{tls}; |
1774 | return unless $self->{tls}; |
| 1757 | |
1775 | |
| 1758 | $self->{tls_ctx}->_put_session (delete $self->{tls}) |
1776 | $self->{tls_ctx}->_put_session (delete $self->{tls}) |
| 1759 | if ref $self->{tls}; |
1777 | if $self->{tls} > 0; |
| 1760 | |
1778 | |
| 1761 | delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)}; |
1779 | delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)}; |
| 1762 | } |
1780 | } |
| 1763 | |
1781 | |
| 1764 | sub DESTROY { |
1782 | sub DESTROY { |
| … | |
… | |
| 1791 | |
1809 | |
| 1792 | =item $handle->destroy |
1810 | =item $handle->destroy |
| 1793 | |
1811 | |
| 1794 | Shuts down the handle object as much as possible - this call ensures that |
1812 | Shuts down the handle object as much as possible - this call ensures that |
| 1795 | no further callbacks will be invoked and as many resources as possible |
1813 | no further callbacks will be invoked and as many resources as possible |
| 1796 | will be freed. You must not call any methods on the object afterwards. |
1814 | will be freed. Any method you will call on the handle object after |
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|
1815 | destroying it in this way will be silently ignored (and it will return the |
|
|
1816 | empty list). |
| 1797 | |
1817 | |
| 1798 | Normally, you can just "forget" any references to an AnyEvent::Handle |
1818 | Normally, you can just "forget" any references to an AnyEvent::Handle |
| 1799 | object and it will simply shut down. This works in fatal error and EOF |
1819 | object and it will simply shut down. This works in fatal error and EOF |
| 1800 | callbacks, as well as code outside. It does I<NOT> work in a read or write |
1820 | callbacks, as well as code outside. It does I<NOT> work in a read or write |
| 1801 | callback, so when you want to destroy the AnyEvent::Handle object from |
1821 | callback, so when you want to destroy the AnyEvent::Handle object from |
| … | |
… | |
| 1815 | sub destroy { |
1835 | sub destroy { |
| 1816 | my ($self) = @_; |
1836 | my ($self) = @_; |
| 1817 | |
1837 | |
| 1818 | $self->DESTROY; |
1838 | $self->DESTROY; |
| 1819 | %$self = (); |
1839 | %$self = (); |
|
|
1840 | bless $self, "AnyEvent::Handle::destroyed"; |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | sub AnyEvent::Handle::destroyed::AUTOLOAD { |
|
|
1844 | #nop |
| 1820 | } |
1845 | } |
| 1821 | |
1846 | |
| 1822 | =item AnyEvent::Handle::TLS_CTX |
1847 | =item AnyEvent::Handle::TLS_CTX |
| 1823 | |
1848 | |
| 1824 | This function creates and returns the AnyEvent::TLS object used by default |
1849 | This function creates and returns the AnyEvent::TLS object used by default |
