X-Git-Url: http://gb7djk.dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FMsg.pm;h=d62cb744034377f54592a3a7233571f9e88f842d;hb=06a6935d583a684869129350fed170d467ad8acc;hp=37308b5bb89fe943dd561cdd3bf68f6294ae1331;hpb=fd0a34c34ad4112ee21e0730f7307498ff437e18;p=spider.git diff --git a/perl/Msg.pm b/perl/Msg.pm index 37308b5b..d62cb744 100644 --- a/perl/Msg.pm +++ b/perl/Msg.pm @@ -14,74 +14,18 @@ use strict; use DXUtil; -use IO::Select; -use IO::Socket; +use Mojo::IOLoop; +use Mojo::IOLoop::Stream; + use DXDebug; use Timer; -use vars qw(%rd_callbacks %wt_callbacks %er_callbacks $rd_handles $wt_handles $er_handles $now %conns $noconns $blocking_supported $cnum $total_in $total_out); +use vars qw($now %conns $noconns $cnum $total_in $total_out); -%rd_callbacks = (); -%wt_callbacks = (); -%er_callbacks = (); -$rd_handles = IO::Select->new(); -$wt_handles = IO::Select->new(); -$er_handles = IO::Select->new(); $total_in = $total_out = 0; $now = time; -BEGIN { - # Checks if blocking is supported - eval { - local $^W; - require POSIX; POSIX->import(qw(O_NONBLOCK F_SETFL F_GETFL)) - }; - if ($@ || $main::is_win) { - $blocking_supported = IO::Socket->can('blocking') ? 2 : 0; - } else { - $blocking_supported = IO::Socket->can('blocking') ? 2 : 1; - } - - - # import as many of these errno values as are available - eval { - local $^W; - require Errno; Errno->import(qw(EAGAIN EINPROGRESS EWOULDBLOCK)); - }; - - unless ($^O eq 'MSWin32') { - if ($] >= 5.6) { - eval { - local $^W; - require Socket; Socket->import(qw(IPPROTO_TCP TCP_NODELAY)); - }; - } else { - dbg("IPPROTO_TCP and TCP_NODELAY manually defined"); - eval 'sub IPPROTO_TCP { 6 };'; - eval 'sub TCP_NODELAY { 1 };'; - } - } - # http://support.microsoft.com/support/kb/articles/Q150/5/37.asp - # defines EINPROGRESS as 10035. We provide it here because some - # Win32 users report POSIX::EINPROGRESS is not vendor-supported. - if ($^O eq 'MSWin32') { - eval '*EINPROGRESS = sub { 10036 };'; - eval '*EWOULDBLOCK = *EAGAIN = sub { 10035 };'; - eval '*F_GETFL = sub { 0 };'; - eval '*F_SETFL = sub { 0 };'; - eval '*IPPROTO_TCP = sub { 6 };'; - eval '*TCP_NODELAY = sub { 1 };'; - $blocking_supported = 0; # it appears that this DOESN'T work :-( - } -} - -my $w = $^W; -$^W = 0; -my $eagain = eval {EAGAIN()}; -my $einprogress = eval {EINPROGRESS()}; -my $ewouldblock = eval {EWOULDBLOCK()}; -$^W = $w; $cnum = 0; @@ -109,7 +53,7 @@ sub new $noconns++; - dbg("Connection created ($noconns)") if isdbg('connll'); + dbg("$class Connection created (total $noconns)") if isdbg('connll'); return bless $conn, $class; } @@ -117,33 +61,21 @@ sub set_error { my $conn = shift; my $callback = shift; - $conn->{eproc} = $callback; - set_event_handler($conn->{sock}, error => $callback) if exists $conn->{sock}; + $conn->{sock}->on(error => sub {my ($stream, $err) = @_; $callback->($conn, $err);}); } -sub set_rproc +sub set_on_eof { my $conn = shift; my $callback = shift; - $conn->{rproc} = $callback; + $conn->{sock}->on(close => sub {$callback->($conn);}); } -sub blocking +sub set_rproc { - return unless $blocking_supported; - - # Make the handle stop blocking, the Windows way. - if ($blocking_supported) { - $_[0]->blocking($_[1]); - } else { - my $flags = fcntl ($_[0], F_GETFL, 0); - if ($_[1]) { - $flags &= ~O_NONBLOCK; - } else { - $flags |= O_NONBLOCK; - } - fcntl ($_[0], F_SETFL, $flags); - } + my $conn = shift; + my $callback = shift; + $conn->{rproc} = $callback; } # save it @@ -156,11 +88,11 @@ sub conns if (ref $pkg) { $call = $pkg->{call} unless $call; return undef unless $call; - dbg("changing $pkg->{call} to $call") if isdbg('connll') && exists $pkg->{call} && $call ne $pkg->{call}; + dbg((ref $pkg) . " changing $pkg->{call} to $call") if isdbg('connll') && exists $pkg->{call} && $call ne $pkg->{call}; delete $conns{$pkg->{call}} if exists $pkg->{call} && exists $conns{$pkg->{call}} && $pkg->{call} ne $call; $pkg->{call} = $call; $ref = $conns{$call} = $pkg; - dbg("Connection $pkg->{cnum} $call stored") if isdbg('connll'); + dbg((ref $pkg) . " Connection $pkg->{cnum} $call stored") if isdbg('connll'); } else { $ref = $conns{$call}; } @@ -179,6 +111,21 @@ sub pid_gone } } +sub ax25 +{ + my $conn = shift; + return $conn->{csort} eq 'ax25'; +} + +sub peerhost +{ + my $conn = shift; + $conn->{peerhost} ||= 'ax25' if $conn->ax25; + $conn->{peerhost} ||= $conn->{sock}->handle->peerhost if $conn->{sock}; + $conn->{peerhost} ||= 'UNKNOWN'; + return $conn->{peerhost}; +} + #----------------------------------------------------------------- # Send side routines sub connect { @@ -192,29 +139,21 @@ sub connect { $conn->{peerhost} = $to_host; $conn->{peerport} = $to_port; $conn->{sort} = 'Outgoing'; + + dbg((ref $conn) . " connecting $conn->{cnum} to $to_host:$to_port") if isdbg('connll'); - # Create a new internet socket - my $sock = IO::Socket::INET->new(); - return undef unless $sock; + my $sock; + $conn->{sock} = $sock = Mojo::IOLoop::Client->new; + $sock->on(connect => sub { dbg((ref $conn) . " connected $conn->{cnum} to $to_host:$to_port") if isdbg('connll');}, + error => {$conn->disconnect}, + close => {$conn->disconnect}); - my $proto = getprotobyname('tcp'); - $sock->socket(AF_INET, SOCK_STREAM, $proto) or return undef; + $sock->connect(address => $to_host, port => $to_port); - blocking($sock, 0); - $conn->{blocking} = 0; + dbg((ref $conn) . " connected $conn->{cnum} to $to_host:$to_port") if isdbg('connll'); - # does the host resolve? - my $ip = gethostbyname($to_host); - return undef unless $ip; - - my $r = connect($sock, pack_sockaddr_in($to_port, $ip)); - return undef unless $r || _err_will_block($!); - - $conn->{sock} = $sock; - if ($conn->{rproc}) { - my $callback = sub {$conn->_rcv}; - set_event_handler ($sock, read => $callback); + $sock->on(read => sub {my ($stream, $msg) = @_; $conn->_rcv($msg);} ); } return $conn; } @@ -224,47 +163,47 @@ sub start_program my ($conn, $line, $sort) = @_; my $pid; - local $^F = 10000; # make sure it ain't closed on exec - my ($a, $b) = IO::Socket->socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC); - if ($a && $b) { - $a->autoflush(1); - $b->autoflush(1); - $pid = fork; - if (defined $pid) { - if ($pid) { - close $b; - $conn->{sock} = $a; - $conn->{csort} = $sort; - $conn->{lineend} = "\cM" if $sort eq 'ax25'; - $conn->{pid} = $pid; - if ($conn->{rproc}) { - my $callback = sub {$conn->_rcv}; - Msg::set_event_handler ($a, read => $callback); - } - dbg("connect $conn->{cnum}: started pid: $conn->{pid} as $line") if isdbg('connect'); - } else { - $^W = 0; - dbgclose(); - STDIN->close; - STDOUT->close; - STDOUT->close; - *STDIN = IO::File->new_from_fd($b, 'r') or die; - *STDOUT = IO::File->new_from_fd($b, 'w') or die; - *STDERR = IO::File->new_from_fd($b, 'w') or die; - close $a; - unless ($main::is_win) { - # $SIG{HUP} = 'IGNORE'; - $SIG{HUP} = $SIG{CHLD} = $SIG{TERM} = $SIG{INT} = 'DEFAULT'; - alarm(0); - } - exec "$line" or dbg("exec '$line' failed $!"); - } - } else { - dbg("cannot fork for $line"); - } - } else { - dbg("no socket pair $! for $line"); - } +# local $^F = 10000; # make sure it ain't closed on exec +# my ($a, $b) = $io_socket->socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC); +# if ($a && $b) { +# $a->autoflush(1); +# $b->autoflush(1); +# $pid = fork; +# if (defined $pid) { +# if ($pid) { +# close $b; +# $conn->{sock} = $a; +# $conn->{csort} = $sort; +# $conn->{lineend} = "\cM" if $sort eq 'ax25'; +# $conn->{pid} = $pid; +# if ($conn->{rproc}) { +# my $callback = sub {$conn->_rcv}; +# Msg::set_event_handler ($a, read => $callback); +# } +# dbg("connect $conn->{cnum}: started pid: $conn->{pid} as $line") if isdbg('connect'); +# } else { +# $^W = 0; +# dbgclose(); +# STDIN->close; +# STDOUT->close; +# STDOUT->close; +# *STDIN = IO::File->new_from_fd($b, 'r') or die; +# *STDOUT = IO::File->new_from_fd($b, 'w') or die; +# *STDERR = IO::File->new_from_fd($b, 'w') or die; +# close $a; +# unless ($main::is_win) { +# # $SIG{HUP} = 'IGNORE'; +# $SIG{HUP} = $SIG{CHLD} = $SIG{TERM} = $SIG{INT} = 'DEFAULT'; +# alarm(0); +# } +# exec "$line" or dbg("exec '$line' failed $!"); +# } +# } else { +# dbg("cannot fork for $line"); +# } +# } else { +# dbg("no socket pair $! for $line"); +# } return $pid; } @@ -285,7 +224,7 @@ sub disconnect delete $conns{$call} if $ref && $ref == $conn; } $call ||= 'unallocated'; - dbg("Connection $conn->{cnum} $call disconnected") if isdbg('connll'); + dbg((ref $conn) . " Connection $conn->{cnum} $call disconnected") if isdbg('connll'); # get rid of any references for (keys %$conn) { @@ -295,9 +234,7 @@ sub disconnect } if (defined($sock)) { - set_event_handler ($sock, read => undef, write => undef, error => undef); - shutdown($sock, 3); - close($sock); + $sock->remove; } unless ($main::is_win) { @@ -305,175 +242,92 @@ sub disconnect } } +sub _send_stuff +{ + my $conn = shift; + my $rq = $conn->{outqueue}; + my $sock = $conn->{sock}; + while (@$rq) { + my $data = shift @$rq; + my $lth = length $data; + my $call = $conn->{call} || 'none'; + if (isdbg('raw')) { + if (isdbg('raw')) { + dbgdump('raw', "$call send $lth: ", $lth); + } + } + if (defined $sock && !$sock->destroyed) { + $sock->write($data); + $total_out = $lth; + } else { + dbg("_send_stuff $call ending data ignored: $data"); + } + } +} + sub send_now { my ($conn, $msg) = @_; $conn->enqueue($msg); - $conn->_send (1); # 1 ==> flush + _send_stuff($conn); } sub send_later { - my ($conn, $msg) = @_; - $conn->enqueue($msg); - my $sock = $conn->{sock}; - return unless defined($sock); - set_event_handler ($sock, write => sub {$conn->_send(0)}); + goto &send_now; } sub enqueue { my $conn = shift; - push (@{$conn->{outqueue}}, defined $_[0] ? $_[0] : ''); -} - -sub _send { - my ($conn, $flush) = @_; - my $sock = $conn->{sock}; - return unless defined($sock); - my $rq = $conn->{outqueue}; - - # If $flush is set, set the socket to blocking, and send all - # messages in the queue - return only if there's an error - # If $flush is 0 (deferred mode) make the socket non-blocking, and - # return to the event loop only after every message, or if it - # is likely to block in the middle of a message. - -# if ($conn->{blocking} != $flush) { -# blocking($sock, $flush); -# $conn->{blocking} = $flush; -# } - my $offset = (exists $conn->{send_offset}) ? $conn->{send_offset} : 0; - - while (@$rq) { - my $msg = $rq->[0]; - my $mlth = length($msg); - my $bytes_to_write = $mlth - $offset; - my $bytes_written = 0; - confess("Negative Length! msg: '$msg' lth: $mlth offset: $offset") if $bytes_to_write < 0; - while ($bytes_to_write > 0) { - $bytes_written = syswrite ($sock, $msg, - $bytes_to_write, $offset); - if (!defined($bytes_written)) { - if (_err_will_block($!)) { - # Should happen only in deferred mode. Record how - # much we have already sent. - $conn->{send_offset} = $offset; - # Event handler should already be set, so we will - # be called back eventually, and will resume sending - return 1; - } else { # Uh, oh - &{$conn->{eproc}}($conn, $!) if exists $conn->{eproc}; - $conn->disconnect; - return 0; # fail. Message remains in queue .. - } - } elsif (isdbg('raw')) { - my $call = $conn->{call} || 'none'; - dbgdump('raw', "$call send $bytes_written: ", $msg); - } - $total_out += $bytes_written; - $offset += $bytes_written; - $bytes_to_write -= $bytes_written; - } - delete $conn->{send_offset}; - $offset = 0; - shift @$rq; - #last unless $flush; # Go back to select and wait - # for it to fire again. - } - # Call me back if queue has not been drained. - unless (@$rq) { - set_event_handler ($sock, write => undef); - if (exists $conn->{close_on_empty}) { - &{$conn->{eproc}}($conn, undef) if exists $conn->{eproc}; - $conn->disconnect; - } - } - 1; # Success + push @{$conn->{outqueue}}, defined $_[0] ? $_[0] : ''; } -sub dup_sock +sub _err_will_block { - my $conn = shift; - my $oldsock = $conn->{sock}; - my $rc = $rd_callbacks{$oldsock}; - my $wc = $wt_callbacks{$oldsock}; - my $ec = $er_callbacks{$oldsock}; - my $sock = $oldsock->new_from_fd($oldsock, "w+"); - if ($sock) { - set_event_handler($oldsock, read=>undef, write=>undef, error=>undef); - $conn->{sock} = $sock; - set_event_handler($sock, read=>$rc, write=>$wc, error=>$ec); - $oldsock->close; - } -} - -sub _err_will_block { - return 0 unless $blocking_supported; - return ($_[0] == $eagain || $_[0] == $ewouldblock || $_[0] == $einprogress); + return 0; } sub close_on_empty { my $conn = shift; - $conn->{close_on_empty} = 1; + $conn->{sock}->on(drain => sub {$conn->disconnect;}); } #----------------------------------------------------------------- # Receive side routines -sub new_server { - @_ == 4 || die "Msg->new_server (myhost, myport, login_proc\n"; - my ($pkg, $my_host, $my_port, $login_proc) = @_; - my $self = $pkg->new($login_proc); +sub new_server +{ +# @_ == 4 || die "Msg->new_server (myhost, myport, login_proc)\n"; + my ($pkg, $my_host, $my_port, $login_proc) = @_; + my $conn = $pkg->new($login_proc); + + $conn->{sock} = Mojo::IOLoop::Server->new; + $conn->{sock}->on(accept=>sub{$conn->new_client()}); + $conn->{sock}->listen(address=>$my_host, port=>$my_port); - $self->{sock} = IO::Socket::INET->new ( - LocalAddr => "$my_host:$my_port", -# LocalPort => $my_port, - Listen => SOMAXCONN, - Proto => 'tcp', - Reuse => 1); - die "Could not create socket: $! \n" unless $self->{sock}; - set_event_handler ($self->{sock}, read => sub { $self->new_client } ); - return $self; + die "Could not create socket: $! \n" unless $conn->{sock}; + return $conn; } sub nolinger { my $conn = shift; - - unless ($main::is_win) { - if (isdbg('sock')) { - my ($l, $t) = unpack "ll", getsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER); - my $k = unpack 'l', getsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE); - my $n = $main::is_win ? 0 : unpack "l", getsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY); - dbg("Linger is: $l $t, keepalive: $k, nagle: $n"); - } - - eval {setsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE, 1)} or dbg("setsockopt keepalive: $!"); - eval {setsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER, pack("ll", 0, 0))} or dbg("setsockopt linger: $!"); - eval {setsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY, 1)} or eval {setsockopt($conn->{sock}, SOL_SOCKET, TCP_NODELAY, 1)} or dbg("setsockopt tcp_nodelay: $!"); - $conn->{sock}->autoflush(0); - - if (isdbg('sock')) { - my ($l, $t) = unpack "ll", getsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER); - my $k = unpack 'l', getsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE); - my $n = $main::is_win ? 0 : unpack "l", getsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY); - dbg("Linger is: $l $t, keepalive: $k, nagle: $n"); - } - } } sub dequeue { my $conn = shift; - - if ($conn->{msg} =~ /\n/) { - my @lines = split /\r?\n/, $conn->{msg}; - if ($conn->{msg} =~ /\n$/) { + return if $conn->{disconnecting}; + + if ($conn->{msg} =~ /\cJ/) { + my @lines = split /\cM?\cJ/, $conn->{msg}; + if ($conn->{msg} =~ /\cM?\cJ$/) { delete $conn->{msg}; } else { $conn->{msg} = pop @lines; } for (@lines) { + last if $conn->{disconnecting}; &{$conn->{rproc}}($conn, defined $_ ? $_ : ''); } } @@ -487,10 +341,10 @@ sub _rcv { # Complement to _send return unless defined($sock); my @lines; - if ($conn->{blocking}) { - blocking($sock, 0); - $conn->{blocking} = 0; - } +# if ($conn->{blocking}) { +# blocking($sock, 0); +# $conn->{blocking} = 0; +# } $bytes_read = sysread ($sock, $msg, 1024, 0); if (defined ($bytes_read)) { if ($bytes_read > 0) { @@ -540,37 +394,30 @@ FINISH: sub new_client { my $server_conn = shift; - my $sock = $server_conn->{sock}->accept(); - if ($sock) { - my $conn = $server_conn->new($server_conn->{rproc}); - $conn->{sock} = $sock; - blocking($sock, 0); - $conn->nolinger; - $conn->{blocking} = 0; - my ($rproc, $eproc) = &{$server_conn->{rproc}} ($conn, $conn->{peerhost} = $sock->peerhost(), $conn->{peerport} = $sock->peerport()); - $conn->{sort} = 'Incoming'; - if ($eproc) { - $conn->{eproc} = $eproc; - set_event_handler ($sock, error => $eproc); - } - if ($rproc) { - $conn->{rproc} = $rproc; - my $callback = sub {$conn->_rcv}; - set_event_handler ($sock, read => $callback); - } else { # Login failed - &{$conn->{eproc}}($conn, undef) if exists $conn->{eproc}; - $conn->disconnect(); - } - } else { - dbg("Msg: error on accept ($!)") if isdbg('err'); + my $client = shift; + + my $conn = $server_conn->new($server_conn->{rproc}); + my $sock = $conn->{sock} = Mojo::IOLoop::Stream->new($client); + $sock->on(read => sub {$conn->_rcv($_[1])}); + dbg((ref $conn) . "accept $conn->{cnum} from $conn->{peerhost} $conn->{peerport}") if isdbg('connll'); + + my ($rproc, $eproc) = &{$server_conn->{rproc}} ($conn, $conn->{peerhost} = $client->peerhost, $conn->{peerport} = $client->peerport); + $conn->{sort} = 'Incoming'; + if ($eproc) { + $conn->{eproc} = $eproc; + } + if ($rproc) { + $conn->{rproc} = $rproc; + } else { # Login failed + &{$conn->{eproc}}($conn, undef) if exists $conn->{eproc}; + $conn->disconnect(); } } sub close_server { my $conn = shift; - set_event_handler ($conn->{sock}, read => undef, write => undef, error => undef ); - $conn->{sock}->close; + delete $conn->{sock}; } # close all clients (this is for forking really) @@ -584,87 +431,24 @@ sub close_all_clients sub disable_read { my $conn = shift; - set_event_handler ($conn->{sock}, read => undef); - return $_[0] ? $conn->{disable_read} = $_[0] : $_[0]; + return defined $_[0] ? $conn->{disable_read} = $_[0] : $_[0]; } + # #---------------------------------------------------- # Event loop routines used by both client and server sub set_event_handler { - shift unless ref($_[0]); # shift if first arg is package name - my ($handle, %args) = @_; - my $callback; - if (exists $args{'write'}) { - $callback = $args{'write'}; - if ($callback) { - $wt_callbacks{$handle} = $callback; - $wt_handles->add($handle); - } else { - delete $wt_callbacks{$handle}; - $wt_handles->remove($handle); - } - } - if (exists $args{'read'}) { - $callback = $args{'read'}; - if ($callback) { - $rd_callbacks{$handle} = $callback; - $rd_handles->add($handle); - } else { - delete $rd_callbacks{$handle}; - $rd_handles->remove($handle); - } - } - if (exists $args{'error'}) { - $callback = $args{'error'}; - if ($callback) { - $er_callbacks{$handle} = $callback; - $er_handles->add($handle); - } else { - delete $er_callbacks{$handle}; - $er_handles->remove($handle); - } - } -} - -sub event_loop { - my ($pkg, $loop_count, $timeout, $wronly) = @_; # event_loop(1) to process events once - my ($conn, $r, $w, $e, $rset, $wset, $eset); - while (1) { - - # Quit the loop if no handles left to process - if ($wronly) { - last unless $wt_handles->count(); - - ($rset, $wset, $eset) = IO::Select->select(undef, $wt_handles, undef, $timeout); - - foreach $w (@$wset) { - &{$wt_callbacks{$w}}($w) if exists $wt_callbacks{$w}; - } - } else { - - last unless ($rd_handles->count() || $wt_handles->count()); - - ($rset, $wset, $eset) = IO::Select->select($rd_handles, $wt_handles, $er_handles, $timeout); - - foreach $e (@$eset) { - &{$er_callbacks{$e}}($e) if exists $er_callbacks{$e}; - } - foreach $r (@$rset) { - &{$rd_callbacks{$r}}($r) if exists $rd_callbacks{$r}; - } - foreach $w (@$wset) { - &{$wt_callbacks{$w}}($w) if exists $wt_callbacks{$w}; - } - } - - Timer::handler; - - if (defined($loop_count)) { - last unless --$loop_count; - } - } + my $sock = shift; + my %args = @_; + my ($pkg, $fn, $line) = caller; + my $s; + foreach (my ($k,$v) = each %args) { + $s .= "$k => $v, "; + } + $s =~ s/[\s,]$//; + dbg("Msg::set_event_handler called from ${pkg}::${fn} line $line doing $s"); } sub sleep @@ -672,7 +456,7 @@ sub sleep my ($pkg, $interval) = @_; my $now = time; while (time - $now < $interval) { - $pkg->event_loop(10, 0.01); + sleep 1; } } @@ -682,8 +466,8 @@ sub DESTROY my $call = $conn->{call} || 'unallocated'; my $host = $conn->{peerhost} || ''; my $port = $conn->{peerport} || ''; - dbg("Connection $conn->{cnum} $call [$host $port] being destroyed") if isdbg('connll'); $noconns--; + dbg((ref $conn) . " Connection $conn->{cnum} $call [$host $port] being destroyed (total $noconns)") if isdbg('connll'); } 1;