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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 runningSYNOPSIS¶
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <sched.h> int sched_getcpu(void);
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.CONFORMING TO¶
sched_getcpu() is glibc specific.NOTES¶
The callcpu = 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)COLOPHON¶
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.2010-10-31 | Linux |