HP WebQoS for HP-UX API Programmer's Guide

Chapter 2 21
Using the WebQoS API
wq_get_proc_cls()
Errors
If error logging to syslog is enabled, certain errors are logged to a file (you
can specify the file in /etc/syslog.conf). Refer to the syslog(3C) and
syslogd(1M) man pages for information about enabling logging.
When an error occurs, errorcode is set to one of the following:
Multithreaded Applications
For HP-UX 10.20 (supports user-level threads only), all user-level
threads within one process are in the same process group.
wq_get_proc_cls() returns the same value when called from any of
the threads of a process.
For HP-UX 11.0 (supports 1x1 kernel threads), a thread in user space
corresponds to a kernel thread (also known as a Light Weight Process,
LWP). LWPs may belong to different process groups.
wq_get_proc_cls() may return different values within the same
process. Currently, WebQoS cannot move a thread from one process
group to another. Therefore, all threads in a process are in the same
process group.
This function is thread safe.
Example
See Appendix A , “Sample Programs, Configuration, and Header Files,”
on page 33 for an example.
Table 2-6 wq_get_proc_cls() Error Codes
Error Code Description
WQERR_NOTREADY PRM is not installed or not configured on the system.
WQERR_OTHER If error logging to syslog is enabled (“error” level for
all facilities), the error is logged to a file.