mariadb/portability/toku_affinity.h
Leif Walsh 589813ac5c refs add portability wrapper for sched_setaffinity/sched_getaffinity
git-svn-id: file:///svn/toku/tokudb@48692 c7de825b-a66e-492c-adef-691d508d4ae1
2013-04-17 00:01:12 -04:00

36 lines
1.1 KiB
C++

/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "Copyright (c) 2012 Tokutek Inc. All rights reserved."
#ident "$Id$"
#ifndef TOKU_AFFINITY_H
#define TOKU_AFFINITY_H
#include <config.h>
#include <stddef.h>
#include <sys/types.h>
#if defined(HAVE_SCHED_GETAFFINITY)
# include <sched.h>
typedef cpu_set_t toku_cpuset_t;
# define TOKU_CPU_ZERO(p) CPU_ZERO(p)
# define TOKU_CPU_SET(n, p) CPU_SET(n, p)
#elif defined(HAVE_CPUSET_GETAFFINITY)
# include <sys/param.h>
# include <sys/cpuset.h>
typedef cpuset_t toku_cpuset_t;
# define TOKU_CPU_ZERO(p) CPU_ZERO(p)
# define TOKU_CPU_SET(n, p) CPU_SET(n, p)
#else
// dummy implementation to get rid of unused warnings etc
typedef int toku_cpuset_t;
# define TOKU_CPU_ZERO(p) (*p = 0)
# define TOKU_CPU_SET(n, p) ((void) (n, p))
#endif
// see sched_getaffinity(2)
int toku_getaffinity(pid_t pid, size_t cpusetsize, toku_cpuset_t *cpusetp);
// see sched_setaffinity(2)
int toku_setaffinity(pid_t pid, size_t cpusetsize, const toku_cpuset_t *cpusetp);
#endif // TOKU_AFFINITY_H