主管 [program:x] 部分 exitcode

Question

我正在尝试配置和了解supervisord程序部分。手册中提到的一个选项是exitcodes

exitcodes

The list of “expected” exit codes for this program. 
If the autorestart parameter is set to unexpected, 
and the process exits in any other way than as a 
result of a supervisor stop request, supervisord 
will restart the process if it exits with an exit 
code that is not defined in this list.

Default: 0,2

Required: No.

Introduced: 3.0

在哪里可以找到每个可用退出代码的参考？