summaryrefslogtreecommitdiff
path: root/doc/s6-svdt.html
blob: bb780614ff55fc844961b0f4cefe24b979aa7696 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
<html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <meta http-equiv="Content-Language" content="en" />
    <title>s6: the s6-svdt program</title>
    <meta name="Description" content="s6: the s6-svdt program" />
    <meta name="Keywords" content="s6 command s6-svdt servicedir death tally process supervision s6-supervise" />
    <!-- <link rel="stylesheet" type="text/css" href="//skarnet.org/default.css" /> -->
  </head>
<body>

<p>
<a href="index.html">s6</a><br />
<a href="//skarnet.org/software/">Software</a><br />
<a href="//skarnet.org/">skarnet.org</a>
</p>

<h1> The s6-svdt program </h1>

<p>
s6-svstat prints the recorded death tally of a service, i.e. a list of the times
the process died, with the cause of death.
</p>

<h2> Interface </h2>

<pre>
     s6-svdt [ -S | -s ] [ -n <em>maxlines</em> ] <em>servicedir</em>
</pre>

<p>
 s6-svdt prints the contents of the recorded death tally of the service being
currently supervised at the <em>servicedir</em>
<a href="servicedir.html">service directory</a>, then exits 0.
</p>

<p>
 For each recorded death, s6-svdt prints one line. This line contains the
following fields, separated with spaces:
</p>

<ul>
 <li> A <a href="https://cr.yp.to/daemontools/tai64n.html">TAI64N</a>
timestamp .</li>
 <li> The word "signal" if the death was caused by a signal, or the word
"exitcode" if the death was a normal exit. </li>
 <li> The name of the signal that caused the death, or the exit code
of the process. </li>

<h2> Options </h2>

<ul>
 <li> <tt>-S</tt>&nbsp;: print signal names. This is the default. </li>
 <li> <tt>-s</tt>&nbsp;: print signal numbers. The numerical value of the signal
will be printed instead of the signal name. </li>
 <li> <tt>-n&nbsp;<em>maxlines</em></tt>&nbsp;: limit the output to at most
the latest <em>maxlines</em> deaths. </li>
</ul>

<h2> Exit codes </h2>

<ul>
 <li> 0: success </li>
 <li> 100: wrong usage </li>
 <li> 111: system call failed </li>
</ul>

</body>
</html>