sched_getcpu man page on Kali

sched_getcpu man page on Kali

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SCHED_GETCPU(3)		   Linux Programmer's Manual	       SCHED_GETCPU(3)

NAME
       sched_getcpu - determine CPU on which the calling thread is running

SYNOPSIS
       #include <sched.h>

       int sched_getcpu(void);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       sched_getcpu():
	   Since glibc 2.14:
	       _GNU_SOURCE
	   Before glibc 2.14:
	       _BSD_SOURCE || _SVID_SOURCE
		   /* _GNU_SOURCE also suffices */

DESCRIPTION
       sched_getcpu()  returns	the  number  of	 the  CPU on which the calling
       thread is currently executing.

RETURN VALUE
       On success, sched_getcpu() returns a nonnegative CPU number.  On error,
       -1 is returned and errno is set to indicate the error.

ERRORS
       ENOSYS This kernel does not implement getcpu(2).

VERSIONS
       This function is available since glibc 2.6.

ATTRIBUTES
       For   an	  explanation	of   the  terms	 used  in  this	 section,  see
       attributes(7).

       ┌───────────────┬───────────────┬─────────┐
       │Interface      │ Attribute     │ Value	 │
       ├───────────────┼───────────────┼─────────┤
       │sched_getcpu() │ Thread safety │ MT-Safe │
       └───────────────┴───────────────┴─────────┘
CONFORMING TO
       sched_getcpu() is glibc-specific.

NOTES
       The call

	   cpu = sched_getcpu();

       is equivalent to the following getcpu(2) call:

	   int c, s;
	   s = getcpu(&c, NULL, NULL);
	   cpu = (s == -1) ? s : c;

SEE ALSO
       getcpu(2), sched(7)

COLOPHON
       This page is part of release 4.14 of the Linux  man-pages  project.   A
       description  of	the project, information about reporting bugs, and the
       latest	 version    of	  this	  page,	   can	   be	  found	    at
       https://www.kernel.org/doc/man-pages/.

Linux				  2017-09-15		       SCHED_GETCPU(3)

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