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cae644c8a1
Rewrite MWI and CallFlow subscribe handlers based on EventConsumer class.
Also on my test VirtualBox/Debian system Lua function `os.clock` produce
very strange result(delta ~0.015 for 1 second) so I switch to `os.time`.
Now to to stop this background Lua scripts it possible send CUSTOM event
with subclass `fusion::XXX::shutdown`. Where XXX is `mwi` or `flow`.
Usage of EventConsumer class
```Lua
-- create new object with timeout one minute
local events = EventConsumer.new(60000)
-- bind to some FS event
events:bind("SHUTDOW", function(self, name, event) ... end)
-- bind to another FS event with subclass
events:bind("CUSTOM::fusion::mwi::shutdown", function(self, name, event) ... end)
-- handle timeout event
events:on("TIMEOUT", function(self, name) ... end)
--run event loop
events:run()
```
75 lines
2.2 KiB
Lua
75 lines
2.2 KiB
Lua
require "resources.functions.config"
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require "resources.functions.split"
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local log = require "resources.functions.log".call_flow_subscribe
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local EventConsumer = require "resources.functions.event_consumer"
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local presence_in = require "resources.functions.presence_in"
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local Database = require "resources.functions.database"
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local find_call_flow do
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local find_call_flow_sql = [[select t1.call_flow_uuid, t1.call_flow_status
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from v_call_flows t1 inner join v_domains t2 on t1.domain_uuid = t2.domain_uuid
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where t2.domain_name = '%s' and t1.call_flow_feature_code = '%s'
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]]
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function find_call_flow(user)
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local ext, domain_name = split_first(user, '@', true)
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if not domain_name then return end
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local dbh = Database.new('system')
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if not dbh then return end
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local sql = string.format(find_call_flow_sql, dbh:escape(domain_name), dbh:escape(ext))
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local row = dbh:first_row(sql)
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dbh:release()
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if not row then return end
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return row.call_flow_uuid, row.call_flow_status
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end
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end
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local sleep = 60000
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local pid_file = scripts_dir .. "/run/call_flow_subscribe.tmp"
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local shutdown_event = "CUSTOM::fusion::flow::shutdown"
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local events = EventConsumer.new(sleep, pid_file)
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-- FS shutdown
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events:bind("SHUTDOWN", function(self, name, event)
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log.notice("shutdown")
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return self:stop()
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end)
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-- shutdown command
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if shutdown_event then
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events:bind(shutdown_event, function(self, name, event)
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log.notice("shutdown")
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return self:stop()
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end)
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end
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-- FS receive SUBSCRIBE to BLF from device
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events:bind("PRESENCE_PROBE", function(self, name, event)
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--handle only blf with `flow+` prefix
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if event:getHeader('proto') ~= 'flow' then return end
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local from, to = event:getHeader('from'), event:getHeader('to')
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local expires = tonumber(event:getHeader('expires'))
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if expires and expires > 0 then
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local call_flow_uuid, call_flow_status = find_call_flow(to)
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if call_flow_uuid then
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log.noticef("Find call flow: %s staus: %s", to, tostring(call_flow_status))
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presence_in.turn_lamp(call_flow_status == "false", to, call_flow_uuid)
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else
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log.warningf("Can not find call flow: %s", to)
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end
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else
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log.noticef("%s UNSUBSCRIBE from %s", from, to)
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end
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end)
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log.notice("start")
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events:run()
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log.notice("stop")
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