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Diffstat (limited to 'manual')
| -rw-r--r-- | manual/resource.texi | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/manual/resource.texi b/manual/resource.texi index 8bc2a803d4..8c4c92a184 100644 --- a/manual/resource.texi +++ b/manual/resource.texi @@ -1429,6 +1429,27 @@ not leave a processor for the process or thread to run on. This function is a GNU extension and is declared in @file{sched.h}. @end deftypefun +@deftypefun int getcpu (unsigned int *cpu, unsigned int *node) +@standards{Linux, <sched.h>} +@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}} +The @code{getcpu} function identifies the processor and node on which +the calling thread or process is currently running and writes them into +the integers pointed to by the @var{cpu} and @var{node} arguments. The +processor is a unique nonnegative integer identifying a CPU. The node +is a unique nonnegative integer identifying a NUMA node. When either +@var{cpu} or @var{node} is @code{NULL}, nothing is written to the +respective pointer. + +The return value is @code{0} on success and @code{-1} on failure. The +following @code{errno} error condition is defined for this function: + +@table @code +@item ENOSYS +The operating system does not support this function. +@end table + +This function is Linux-specific and is declared in @file{sched.h}. +@end deftypefun @node Memory Resources @section Querying memory available resources |