https://github.com/jonathanhood/daemon_examples

https://github.com/jonathanhood/daemon_examples

Last synced: about 2 months ago
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• Host: GitHub
• URL: https://github.com/jonathanhood/daemon_examples
• Owner: jonathanhood
• Created: 2015-03-24T01:25:58.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-03-30T18:17:14.000Z (almost 10 years ago)
• Last Synced: 2024-03-18T06:51:50.722Z (10 months ago)
• Language: Shell
• Size: 121 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
daemon-examples

===============

Several small implementations of a unix daemon in various languages. They 

each follow the process of:

1. Forking to create a subprocess

2. Calling setsid to accomplish various items

   1. Create a new session

   2. Become leader of the new process group

   3. Remove any controlling tty

3. Forking again to avoid acquiring a tty again

4. Redirecting stdout, stderr to a log file

5. Setting stdin to /dev/null

6. Writing a pidfile

7. Closing all open non-std file descriptors (if necessary)

8. Running some "useful" code

Missing Pieces

==============

1. None of the implementations here cd to /, which is recommened to avoid

   daemon execution inside a mounted volume.

2. Setting umask appropriately

3. Changing to an appropriate user for the daemon to run as