GNU/Linux man pages
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GNU/Linux |
Debian 7.3.0(Wheezy) |
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sched_getcpu(3) |
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sched_getcpu − determine CPU on which the calling thread is running
#define
_GNU_SOURCE /* See feature_test_macros(7) */
#include <sched.h>
int sched_getcpu(void);
sched_getcpu() returns the number of the CPU on which the calling thread is currently executing.
On success, sched_getcpu() returns a nonnegative CPU number. On error, −1 is returned and errno is set to indicate the error.
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ENOSYS |
This kernel does not implement getcpu(2). |
This function is available since glibc 2.6.
sched_getcpu() is glibc specific.
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;
getcpu(2)
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/.
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sched_getcpu(3) | |