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I am porting an application from Tru64 to Linux and it uses PID_MAX defined in limits.h.
Linux doesn’t have that define.
How do I find PID_MAX in c without reading /proc/sys/kernel/pid_max by hand?
Is there a library?
It’s 32768 by default, you can read the value on your system in
/proc/sys/kernel/pid_max.And you can set the value higher on 64-bit systems (up to 222 = 4,194,304) with:
Read more here:
http://www.cs.wisc.edu/condor/condorg/linux_scalability.html (via archive.org)