References

The following references apply to this chapter:

Header files

• <sys/procfs.h> — contains the devctl() command constants (e.g., DCMD_PROC_GETGREG) used to fetch information.
• <sys/states.h> — defines the states that a thread can be in (see also “Thread life cycle” in the System Architecture guide).
• <sys/syspage.h> — defines the structure of the system page, which contains system-wide items of interest (e.g. the boot_time member of the qtime structure that tells you when the machine was booted).
• <sys/debug.h> — defines the layout of the various structures in which information is returned.

Functions

See the following functions in the QNX Neutrino C Library Reference:

• opendir() and readdir() (to access the /proc directory)
• devctl() to issue the commands

Utilities

See pidin in the Utilities Reference.