?HAMA

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//proc/thread-self/root/opt/alt/ruby18/share/ri/1.8/system/Signal/cdesc-Signal.yaml

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--- !ruby/object:RI::ClassDescription 
attributes: []

class_methods: 
- !ruby/object:RI::MethodSummary 
  name: list
- !ruby/object:RI::MethodSummary 
  name: trap
comment: 
- !ruby/struct:SM::Flow::P 
  body: Many operating systems allow signals to be sent to running processes. Some signals have a defined effect on the process, while others may be trapped at the code level and acted upon. For example, your process may trap the USR1 signal and use it to toggle debugging, and may use TERM to initiate a controlled shutdown.
- !ruby/struct:SM::Flow::VERB 
  body: "    pid = fork do\n      Signal.trap(&quot;USR1&quot;) do\n        $debug = !$debug\n        puts &quot;Debug now: #$debug&quot;\n      end\n      Signal.trap(&quot;TERM&quot;) do\n        puts &quot;Terminating...&quot;\n        shutdown()\n      end\n      # . . . do some work . . .\n    end\n\n    Process.detach(pid)\n\n    # Controlling program:\n    Process.kill(&quot;USR1&quot;, pid)\n    # ...\n    Process.kill(&quot;USR1&quot;, pid)\n    # ...\n    Process.kill(&quot;TERM&quot;, pid)\n"
- !ruby/struct:SM::Flow::P 
  body: "produces:"
- !ruby/struct:SM::Flow::VERB 
  body: "    Debug now: true\n    Debug now: false\n   Terminating...\n"
- !ruby/struct:SM::Flow::P 
  body: The list of available signal names and their interpretation is system dependent. Signal delivery semantics may also vary between systems; in particular signal delivery may not always be reliable.
constants: []

full_name: Signal
includes: []

instance_methods: []

name: Signal
superclass:

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Name	Size	Perms	Modified	Actions
cdesc-Signal.yaml	1.51 KB	lrw-r--r--	2023-07-26 13:47:32	Edit Download recursive recursive
list-c.yaml	1.14 KB	lrw-r--r--	2023-07-26 13:47:32	Edit Download recursive recursive
trap-c.yaml	1.36 KB	lrw-r--r--	2023-07-26 13:47:32	Edit Download recursive recursive

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