Index for Section 3

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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 successfully.

ERRORS
  None.

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

  Files: numa_types(4)

Index for Section 3

Alphabetical listing for C

Top of page