osf1 man page for cpu_get_current

cpu_get_current(3)					     Library Functions Manual						cpu_get_current(3)

NAME
       cpu_get_current - Return the caller's current CPU ID (libc library)

SYNOPSIS
       #include <cpuset.h>

       cpuid_t cpu_get_current(
	       void );

PARAMETERS
       The cpu_get_current() function has no parameters.

DESCRIPTION
       The cpu_get_current() function fetches the ID of the CPU on which the caller is executing.

NOTES
       This function is similar to the following call:

       getsysinfo(GSI_CPU_CURRENT, &cpuid, ...);

       However,  cpu_get_current() returns the CPU identifier directly (as type cpuid_t), whereas the getsysinfo() call stores the identifier into
       a buffer (as type long) whose address is passed to the function.

RESTRICTIONS
       As is true for many system information queries, the data returned by cpu_get_current() may be stale by the time it is returned to  or  used
       by the caller. In other words, a context switch to a different CPU can occur after the "current CPU" has been fetched by the application.

RETURN VALUES
       The  cpu_get_current()  function returns the CPU ID of the processor where the caller is executing. This function always completes success-
       fully.

ERRORS
       None.

SEE ALSO
       Functions: getsysinfo(2), numa_intro(3)

       Files: numa_types(4)

																cpu_get_current(3)