src/basic/cpu-set-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   Copyright 2015 Filipe Brandenburger
   6 ***/
   7
   8 #include <sched.h>
   9
  10 #include "macro.h"
  11
  12 #ifdef __NCPUBITS
  13 #define CPU_SIZE_TO_NUM(n) ((n) * __NCPUBITS)
  14 #else
  15 #define CPU_SIZE_TO_NUM(n) ((n) * sizeof(cpu_set_t) * 8)
  16 #endif
  17
  18 DEFINE_TRIVIAL_CLEANUP_FUNC(cpu_set_t*, CPU_FREE);
  19 #define _cleanup_cpu_free_ _cleanup_(CPU_FREEp)
  20
  21 static inline cpu_set_t* cpu_set_mfree(cpu_set_t *p) {
  22         if (p)
  23                 CPU_FREE(p);
  24         return NULL;
  25 }
  26
  27 cpu_set_t* cpu_set_malloc(unsigned *ncpus);
  28
  29 int parse_cpu_set_internal(const char *rvalue, cpu_set_t **cpu_set, bool warn, const char *unit, const char *filename, unsigned line, const char *lvalue);
  30
  31 static inline int parse_cpu_set_and_warn(const char *rvalue, cpu_set_t **cpu_set, const char *unit, const char *filename, unsigned line, const char *lvalue) {
  32         assert(lvalue);
  33
  34         return parse_cpu_set_internal(rvalue, cpu_set, true, unit, filename, line, lvalue);
  35 }
  36
  37 static inline int parse_cpu_set(const char *rvalue, cpu_set_t **cpu_set){
  38         return parse_cpu_set_internal(rvalue, cpu_set, false, NULL, NULL, 0, NULL);
  39 }