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

Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents):
Revision 1.215 by root, Sun Jan 23 10:44:48 2011 UTC vs.
Revision 1.220 by root, Sun Jul 24 13:10:43 2011 UTC

 many seconds pass without a successful read or write on the underlying
 file handle (or a call to C<timeout_reset>), the C<on_timeout> callback
 will be invoked (and if that one is missing, a non-fatal C<ETIMEDOUT>
 error will be raised).
-There are three variants of the timeouts that work independently
+There are three variants of the timeouts that work independently of each
-of each other, for both read and write, just read, and just write:
+other, for both read and write (triggered when nothing was read I<OR>
+written), just read (triggered when nothing was read), and just write:
 C<timeout>, C<rtimeout> and C<wtimeout>, with corresponding callbacks
 C<on_timeout>, C<on_rtimeout> and C<on_wtimeout>, and reset functions
 C<timeout_reset>, C<rtimeout_reset>, and C<wtimeout_reset>.
-Note that timeout processing is active even when you do not have
+Note that timeout processing is active even when you do not have any
-any outstanding read or write requests: If you plan to keep the connection
+outstanding read or write requests: If you plan to keep the connection
-idle then you should disable the timeout temporarily or ignore the timeout
+idle then you should disable the timeout temporarily or ignore the
-in the C<on_timeout> callback, in which case AnyEvent::Handle will simply
+timeout in the corresponding C<on_timeout> callback, in which case
-restart the timeout.
+AnyEvent::Handle will simply restart the timeout.
-Zero (the default) disables this timeout.
+Zero (the default) disables the corresponding timeout.
 =item on_timeout => $cb->($handle)
+=item on_rtimeout => $cb->($handle)
+=item on_wtimeout => $cb->($handle)
 Called whenever the inactivity timeout passes. If you return from this
 callback, then the timeout will be reset as if some activity had happened,
 so this condition is not fatal in any way.
                             });
                   } else {
                      if ($self->{on_connect_error}) {
                         $self->{on_connect_error}($self, "$!");
-                        $self->destroy;
+                        $self->destroy if $self;
                      } else {
                         $self->_error ($!, 1);
                      }
                   }
                },
 =item $handle->rtimeout ($seconds)
 =item $handle->wtimeout ($seconds)
 Configures (or disables) the inactivity timeout.
+The timeout will be checked instantly, so this method might destroy the
+handle before it returns.
 =item $handle->timeout_reset
 =item $handle->rtimeout_reset
    sub {
       # accept
       if ($$rbuf =~ $accept) {
          $data .= substr $$rbuf, 0, $+[0], "";
-         $cb->($self, $data);
+         $cb->($_[0], $data);
          return 1;
       }
       # reject
       if ($reject && $$rbuf =~ $reject) {
-         $self->_error (Errno::EBADMSG);
+         $_[0]->_error (Errno::EBADMSG);
       }
       # skip
       if ($skip && $$rbuf =~ $skip) {
          $data .= substr $$rbuf, 0, $+[0], "";
    my ($self, $cb) = @_;
    sub {
       unless ($_[0]{rbuf} =~ s/^(0|[1-9][0-9]*)://) {
          if ($_[0]{rbuf} =~ /[^0-9]/) {
-            $self->_error (Errno::EBADMSG);
+            $_[0]->_error (Errno::EBADMSG);
          }
          return;
       }
       my $len = $1;
-      $self->unshift_read (chunk => $len, sub {
+      $_[0]->unshift_read (chunk => $len, sub {
          my $string = $_[1];
          $_[0]->unshift_read (chunk => 1, sub {
             if ($_[1] eq ",") {
                $cb->($_[0], $string);
             } else {
-               $self->_error (Errno::EBADMSG);
+               $_[0]->_error (Errno::EBADMSG);
             }
          });
       });
       1
    my $data;
    my $rbuf = \$self->{rbuf};
    sub {
-      my $ref = eval { $json->incr_parse ($self->{rbuf}) };
+      my $ref = eval { $json->incr_parse ($_[0]{rbuf}) };
       if ($ref) {
-         $self->{rbuf} = $json->incr_text;
+         $_[0]{rbuf} = $json->incr_text;
          $json->incr_text = "";
-         $cb->($self, $ref);
+         $cb->($_[0], $ref);
          1
       } elsif ($@) {
          # error case
          $json->incr_skip;
-         $self->{rbuf} = $json->incr_text;
+         $_[0]{rbuf} = $json->incr_text;
          $json->incr_text = "";
-         $self->_error (Errno::EBADMSG);
+         $_[0]->_error (Errno::EBADMSG);
          ()
       } else {
-         $self->{rbuf} = "";
+         $_[0]{rbuf} = "";
          ()
       }
    }
 };
          # read remaining chunk
          $_[0]->unshift_read (chunk => $len, sub {
             if (my $ref = eval { Storable::thaw ($_[1]) }) {
                $cb->($_[0], $ref);
             } else {
-               $self->_error (Errno::EBADMSG);
+               $_[0]->_error (Errno::EBADMSG);
             }
          });
       }
       1
    Net::SSLeay::CTX_set_mode ($tls, 1|2);
    $self->{_rbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
    $self->{_wbio} = Net::SSLeay::BIO_new (Net::SSLeay::BIO_s_mem ());
-   Net::SSLeay::BIO_write ($self->{_rbio}, delete $self->{rbuf});
+   Net::SSLeay::BIO_write ($self->{_rbio}, $self->{rbuf});
+   $self->{rbuf} = "";
    Net::SSLeay::set_bio ($tls, $self->{_rbio}, $self->{_wbio});
    $self->{_on_starttls} = sub { $_[0]{on_starttls}(@_) }
       if $self->{on_starttls};
    $self->{tls_ctx}->_put_session (delete $self->{tls})
       if $self->{tls} > 0;
    delete @$self{qw(_rbio _wbio _tls_wbuf _on_starttls)};
 }
+=item $handle->resettls
+This rarely-used method simply resets and TLS state on the handle, usually
+causing data loss.
+One case where it may be useful is when you want to skip over the data in
+the stream but you are not interested in interpreting it, so data loss is
+no concern.
+=cut
+*resettls = \&_freetls;
 sub DESTROY {
    my ($self) = @_;
    &_freetls;
    $handle->on_eof (undef);
    $handle->on_error (sub {
       my $data = delete $_[0]{rbuf};
    });
+Note that this example removes the C<rbuf> member from the handle object,
+which is not normally allowed by the API. It is expressly permitted in
+this case only, as the handle object needs to be destroyed afterwards.
 The reason to use C<on_error> is that TCP connections, due to latencies
 and packets loss, might get closed quite violently with an error, when in
 fact all data has been received.
 It is usually better to use acknowledgements when transferring data,

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Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents): Revision 1.215 by root, Sun Jan 23 10:44:48 2011 UTC vs. Revision 1.220 by root, Sun Jul 24 13:10:43 2011 UTC

Diff Legend

Comparing AnyEvent/lib/AnyEvent/Handle.pm (file contents):
Revision 1.215 by root, Sun Jan 23 10:44:48 2011 UTC vs.
Revision 1.220 by root, Sun Jul 24 13:10:43 2011 UTC