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| 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 |
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| 6 | { |
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| 7 | ($host, $port) = @_; |
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| 8 | $socket = IO::Socket::INET->new( |
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| 9 | Proto => "tcp", |
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| 10 | PeerAddr => $host, |
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| 11 | PeerPort => $port, |
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| 12 | Blocking => 1, |
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| 13 | ) |
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| 14 | or die "Error: Cannot connect to port $port at $host\n"; |
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| 15 | |||
| 16 | return $socket; |
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| 17 | } |
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| 18 | |||
| 19 | sub atomd_read_packet |
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| 20 | { |
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| 21 | ($socket) = @_; |
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| 22 | $command=""; |
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| 23 | read($socket, $command, 4); |
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| 24 | |||
| 25 | $payload_length=""; |
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| 26 | read($socket, $payload_length, 4); |
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| 27 | |||
| 28 | $payload_length = int($payload_length); |
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| 29 | $payload=""; |
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| 30 | if ($payload_length > 0) |
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| 31 | { |
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| 32 | read($socket, $payload, $payload_length); |
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| 33 | } |
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| 34 | |||
| 35 | #Pad payload length with 0s |
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| 36 | $payload_length = sprintf("%04d", $payload_length); |
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| 37 | |||
| 38 | #print "areadpacket ".$command . $payload_length . $payload."\n"; |
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| 39 | return $command . $payload_length . $payload; |
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| 40 | } |
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| 41 | |||
| 42 | sub atomd_write_packet |
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| 43 | { |
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| 44 | ($socket, $command, $payload) = @_; |
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| 45 | |||
| 46 | #Pad payload length with 0s |
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| 47 | $payload_length = sprintf("%04d", length($payload)+1); |
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| 48 | $packet = $command.$payload_length.$payload.chr(0); |
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| 49 | |||
| 50 | #print "awritepacket ".$packet."\n"; |
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| 51 | print $socket $packet; |
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| 52 | } |
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| 53 | |||
| 54 | |||
| 55 | sub atomd_data_available |
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| 56 | { |
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| 57 | ($socket) = @_; |
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| 58 | |||
| 59 | $s = IO::Select->new(); |
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| 60 | $s->add($socket); |
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| 1890 | arune | 61 | @handles = $s->can_read(0.001); |
| 1884 | arune | 62 | |
| 63 | $has_data = 0; |
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| 64 | if (@handles) |
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| 65 | { |
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| 66 | $has_data = 1; |
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| 67 | } |
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| 68 | |||
| 69 | return $has_data; |
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| 70 | } |
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| 71 | |||
| 1890 | arune | 72 | sub atomd_kill_promt |
| 73 | { |
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| 74 | ($socket) = @_; |
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| 1884 | arune | 75 | |
| 1890 | arune | 76 | while (atomd_data_available($socket)) |
| 77 | { |
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| 78 | $packet = atomd_read_packet($socket); # Read prompt |
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| 79 | } |
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| 80 | } |
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| 81 | |||
| 1884 | arune | 82 | sub atomd_initialize |
| 83 | { |
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| 84 | ($host, $port) = @_; |
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| 85 | $socket = atomd_connect($host, $port); |
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| 86 | |||
| 1890 | arune | 87 | atomd_kill_promt($socket); |
| 1884 | arune | 88 | |
| 89 | return $socket; |
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| 90 | } |
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| 91 | |||
| 92 | |||
| 93 | sub atomd_send_command |
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| 94 | { |
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| 95 | ($socket, $command) = @_; |
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| 96 | atomd_write_packet($socket, "RESP", $command); |
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| 97 | } |
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| 98 | |||
| 99 | |||
| 100 | sub atomd_read_command_response |
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| 101 | { |
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| 102 | ($socket) = @_; |
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| 103 | |||
| 104 | $response = ""; |
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| 105 | |||
| 106 | while (1) |
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| 107 | { |
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| 108 | $packet = atomd_read_packet($socket); |
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| 109 | |||
| 110 | if (substr($packet, 0, 4) ne "TEXT") |
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| 111 | { |
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| 112 | last; |
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| 113 | } |
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| 114 | |||
| 115 | $packet =~ s/\n//g; |
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| 1892 | arune | 116 | $response .= substr($packet, 8, -1); |
| 1884 | arune | 117 | $response .= "\n"; |
| 118 | } |
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| 119 | |||
| 120 | return $response; |
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| 121 | } |
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| 122 | |||
| 123 | # "return" 1 to not generate an error when loading file |
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| 124 | 1; |
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| 125 |