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authorChristian Pointner <equinox@helsinki.at>2010-02-02 18:57:12 (GMT)
committerChristian Pointner <equinox@helsinki.at>2010-02-02 18:57:12 (GMT)
commit34ca1b46f926dd92d92acdf42fa3467a9f05435e (patch)
treeb740ec593b6878e65ec732ac5d486cf555c90d01 /silence-watch.lua
parentdf2cb7491e8f9a49bababb2fd49f3483a62733d5 (diff)
added silence watching client
Diffstat (limited to 'silence-watch.lua')
-rw-r--r--silence-watch.lua96
1 files changed, 96 insertions, 0 deletions
diff --git a/silence-watch.lua b/silence-watch.lua
new file mode 100644
index 0000000..c1cea54
--- /dev/null
+++ b/silence-watch.lua
@@ -0,0 +1,96 @@
+--
+-- rhctl
+--
+-- Copyright (C) 2009 Christian Pointner <equinox@spreadspace.org>
+--
+-- This file is part of rhctl.
+--
+-- rhctl is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+--
+-- rhctl is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with rhctl. If not, see <http://www.gnu.org/licenses/>.
+--
+
+socket = require("socket")
+
+function send_mail(address, subject, bodytext)
+ local fp = assert(io.popen("/usr/sbin/mini_sendmail -smailrelay -fnoreply@helsinki.at " .. address, "w"))
+
+ fp:write("Subject: " .. subject .. "\n")
+ fp:write("To: " .. address .. "\n")
+ fp:write("\n")
+ fp:write(bodytext)
+ fp:write("\n")
+ fp:close()
+end
+
+current_state = nil
+
+function process_cmd(message)
+ log.printf(log.DEBUG, "received message: '%s'", message)
+
+ silence_state = string.match(message, "S0S,(%d)")
+
+ if(silence_state and silence_state ~= current_state) then
+ if(silence_state == "0") then
+ log.printf(log.NOTICE, "seen some noise")
+ send_mail("logs@helsinki.at", "[RHCTL] sees some noise",
+ "There is some noise at output 1 of the audioswitch\nCurrent State is: " .. message)
+ else
+ if (silence_state == "1") then
+ send_mail("logs@helsinki.at", "[RHCTL] silence detected ",
+ "Silence detected at output 1 of the audioswitch, make some noise!!\nCurrent State is: " .. message)
+ end
+ end
+ current_state = silence_state
+ end
+
+ return 0
+end
+
+function main_loop(opt)
+ log.printf(log.NOTICE, "main_loop started")
+ local sig = signal.init()
+ local cmdfd = cmd.init()
+
+ cmd.send_string("listen silence");
+ cmd.send_string("switch *0SS");
+
+ local return_value = 0
+ while return_value == 0 do
+ local readable, _, err = socket.select({ sig , cmdfd }, nil)
+ if(err) then
+ log.printf(log.ERROR, "select returned with error: %s", err)
+ return_value = -1
+ else
+ for _, input in ipairs(readable) do
+ if(input == sig) then
+ return_value = signal.handle()
+ if(return_value == 1) then break end
+ else
+ if(input == cmdfd) then
+ return_value = cmd.recv_data(process_cmd)
+ if(return_value ~= 0) then break end
+ else
+ log.printf(log.ERROR, "select returned invalid handle??")
+ return_value = -1
+ break;
+ end
+ end
+ end
+ end
+ end
+
+ clear_leds()
+
+ signal.stop()
+ return return_value
+end