Rev 1884 | Rev 1890 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | SVN | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1884 | arune | 1 | use IO::Select; |
| 1885 | arune | 2 | use IO::Socket; |
| 1884 | arune | 3 | |
| 4 | |||
| 5 | sub atomd_connect |
||
| 6 | { |
||
| 7 | ($host, $port) = @_; |
||
| 8 | $socket = IO::Socket::INET->new( |
||
| 9 | Proto => "tcp", |
||
| 10 | PeerAddr => $host, |
||
| 11 | PeerPort => $port, |
||
| 12 | Blocking => 1, |
||
| 13 | ) |
||
| 14 | or die "Error: Cannot connect to port $port at $host\n"; |
||
| 15 | |||
| 16 | return $socket; |
||
| 17 | } |
||
| 18 | |||
| 19 | sub atomd_read_packet |
||
| 20 | { |
||
| 21 | ($socket) = @_; |
||
| 22 | $command=""; |
||
| 23 | read($socket, $command, 4); |
||
| 24 | |||
| 25 | $payload_length=""; |
||
| 26 | read($socket, $payload_length, 4); |
||
| 27 | |||
| 28 | $payload_length = int($payload_length); |
||
| 29 | $payload=""; |
||
| 30 | if ($payload_length > 0) |
||
| 31 | { |
||
| 32 | read($socket, $payload, $payload_length); |
||
| 33 | } |
||
| 34 | |||
| 35 | #Pad payload length with 0s |
||
| 36 | $payload_length = sprintf("%04d", $payload_length); |
||
| 37 | |||
| 38 | #print "areadpacket ".$command . $payload_length . $payload."\n"; |
||
| 39 | return $command . $payload_length . $payload; |
||
| 40 | } |
||
| 41 | |||
| 42 | sub atomd_write_packet |
||
| 43 | { |
||
| 44 | ($socket, $command, $payload) = @_; |
||
| 45 | |||
| 46 | #Pad payload length with 0s |
||
| 47 | $payload_length = sprintf("%04d", length($payload)+1); |
||
| 48 | $packet = $command.$payload_length.$payload.chr(0); |
||
| 49 | |||
| 50 | #print "awritepacket ".$packet."\n"; |
||
| 51 | print $socket $packet; |
||
| 52 | } |
||
| 53 | |||
| 54 | |||
| 55 | sub atomd_data_available |
||
| 56 | { |
||
| 57 | ($socket) = @_; |
||
| 58 | |||
| 59 | $s = IO::Select->new(); |
||
| 60 | $s->add($socket); |
||
| 61 | @handles = $s->can_read(0.01); |
||
| 62 | |||
| 63 | $has_data = 0; |
||
| 64 | if (@handles) |
||
| 65 | { |
||
| 66 | $has_data = 1; |
||
| 67 | } |
||
| 68 | |||
| 69 | return $has_data; |
||
| 70 | } |
||
| 71 | |||
| 72 | |||
| 73 | sub atomd_initialize |
||
| 74 | { |
||
| 75 | ($host, $port) = @_; |
||
| 76 | $socket = atomd_connect($host, $port); |
||
| 77 | |||
| 78 | while (atomd_data_available($socket)) |
||
| 79 | { |
||
| 80 | $packet = atomd_read_packet($socket); # Read initial prompt |
||
| 81 | } |
||
| 82 | |||
| 83 | return $socket; |
||
| 84 | } |
||
| 85 | |||
| 86 | |||
| 87 | sub atomd_send_command |
||
| 88 | { |
||
| 89 | ($socket, $command) = @_; |
||
| 90 | atomd_write_packet($socket, "RESP", $command); |
||
| 91 | } |
||
| 92 | |||
| 93 | |||
| 94 | sub atomd_read_command_response |
||
| 95 | { |
||
| 96 | ($socket) = @_; |
||
| 97 | |||
| 98 | $response = ""; |
||
| 99 | |||
| 100 | while (1) |
||
| 101 | { |
||
| 102 | $packet = atomd_read_packet($socket); |
||
| 103 | |||
| 104 | if (substr($packet, 0, 4) ne "TEXT") |
||
| 105 | { |
||
| 106 | last; |
||
| 107 | } |
||
| 108 | |||
| 109 | $packet =~ s/\n//g; |
||
| 110 | $response .= substr($packet, 8); |
||
| 111 | $response .= "\n"; |
||
| 112 | } |
||
| 113 | |||
| 114 | return $response; |
||
| 115 | } |
||
| 116 | |||
| 117 | # "return" 1 to not generate an error when loading file |
||
| 118 | 1; |
||
| 119 |