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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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| 2002 | arune | 32 | read($socket, $payload, $payload_length-1); |
| 1884 | arune | 33 | } |
| 2002 | arune | 34 | |
| 1884 | arune | 35 | #Pad payload length with 0s |
| 2002 | arune | 36 | $payload_length = sprintf("%04d", $payload_length-1); |
| 1884 | arune | 37 | |
| 38 | #print "areadpacket ".$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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| 2002 | arune | 47 | # $payload_length = sprintf("%04d", length($payload)+1); |
| 48 | # $packet = $command.$payload_length.$payload.chr(0); |
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| 49 | $payload_length = sprintf("%04d", length($payload)); |
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| 50 | $packet = $command.$payload_length.$payload; |
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| 1884 | arune | 51 | |
| 52 | #print "awritepacket ".$packet."\n"; |
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| 53 | print $socket $packet; |
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| 54 | } |
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| 55 | |||
| 56 | |||
| 57 | sub atomd_data_available |
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| 58 | { |
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| 59 | ($socket) = @_; |
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| 60 | |||
| 61 | $s = IO::Select->new(); |
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| 62 | $s->add($socket); |
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| 1890 | arune | 63 | @handles = $s->can_read(0.001); |
| 1884 | arune | 64 | |
| 65 | $has_data = 0; |
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| 66 | if (@handles) |
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| 67 | { |
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| 68 | $has_data = 1; |
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| 69 | } |
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| 70 | |||
| 71 | return $has_data; |
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| 72 | } |
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| 73 | |||
| 1890 | arune | 74 | sub atomd_kill_promt |
| 75 | { |
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| 76 | ($socket) = @_; |
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| 1884 | arune | 77 | |
| 1890 | arune | 78 | while (atomd_data_available($socket)) |
| 79 | { |
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| 80 | $packet = atomd_read_packet($socket); # Read prompt |
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| 81 | } |
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| 82 | } |
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| 83 | |||
| 1884 | arune | 84 | sub atomd_initialize |
| 85 | { |
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| 86 | ($host, $port) = @_; |
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| 87 | $socket = atomd_connect($host, $port); |
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| 88 | |||
| 1890 | arune | 89 | atomd_kill_promt($socket); |
| 1884 | arune | 90 | |
| 91 | return $socket; |
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| 92 | } |
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| 93 | |||
| 94 | |||
| 95 | sub atomd_send_command |
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| 96 | { |
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| 97 | ($socket, $command) = @_; |
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| 98 | atomd_write_packet($socket, "RESP", $command); |
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| 99 | } |
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| 100 | |||
| 101 | |||
| 102 | sub atomd_read_command_response |
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| 103 | { |
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| 104 | ($socket) = @_; |
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| 105 | |||
| 106 | $response = ""; |
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| 107 | |||
| 108 | while (1) |
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| 109 | { |
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| 110 | $packet = atomd_read_packet($socket); |
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| 111 | |||
| 112 | if (substr($packet, 0, 4) ne "TEXT") |
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| 113 | { |
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| 114 | last; |
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| 115 | } |
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| 116 | |||
| 117 | $packet =~ s/\n//g; |
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| 2002 | arune | 118 | # $response .= substr($packet, 8, -1); |
| 119 | $response .= substr($packet, 8); |
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| 1884 | arune | 120 | $response .= "\n"; |
| 121 | } |
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| 122 | |||
| 123 | return $response; |
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| 124 | } |
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| 125 | |||
| 2002 | arune | 126 | |
| 127 | # Perl trim function to remove whitespace from the start and end of the string |
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| 128 | sub trim($) |
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| 129 | { |
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| 130 | my $string = shift; |
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| 131 | $string =~ s/^\s+//; |
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| 132 | $string =~ s/\s+$//; |
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| 133 | return $string; |
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| 134 | } |
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| 135 | # Left trim function to remove leading whitespace |
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| 136 | sub ltrim($) |
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| 137 | { |
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| 138 | my $string = shift; |
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| 139 | $string =~ s/^\s+//; |
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| 140 | return $string; |
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| 141 | } |
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| 142 | # Right trim function to remove trailing whitespace |
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| 143 | sub rtrim($) |
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| 144 | { |
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| 145 | my $string = shift; |
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| 146 | $string =~ s/\s+$//; |
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| 147 | return $string; |
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| 148 | } |
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| 149 | |||
| 150 | |||
| 151 | |||
| 1884 | arune | 152 | # "return" 1 to not generate an error when loading file |
| 153 | 1; |
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| 154 |