Chapter 13. Daemon Processes

Advanced Programming in the
UNIX Environment

by W. Richard Stevens
Addison-Wesley Professional Computing Series
0-201-56317-7 * Hardcover * 768 pages * ©1992
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Chapter 13. Daemon Processes

Introduction * Daemon Characteristics * Coding Rules * Error Logging * SVR4 Streams log Driver * 4.3+BSD syslog Facility * Client-Server Model * Summary

Example Relevant Functions

13.1 daemon_init: Initialize a daemon process
Become a session leader

Become a process-group leader

Dissociate from controlling terminal

chdir to '/'

Set file creation mask to 0: umask(0)

Still need to close unneded descriptors (not shown)

fork,
setsid,
chdir,
umask

	Example	Relevant Functions
13.1	*daemon_init*: Initialize a daemon process Become a session leader Become a process-group leader Dissociate from controlling terminal chdir to '/' Set file creation mask to 0: umask(0) Still need to close unneded descriptors (not shown)	fork, setsid, chdir, umask

[Buy this book]

Advanced Programming in the UNIX Environment

Chapter 13. Daemon Processes

Advanced Programming in the
UNIX Environment