lib/librte_eal/windows/eal/include/sched.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019 Intel Corporation
   3  */
   4
   5 #ifndef _SCHED_H_
   6 #define _SCHED_H_
   7
   8 /**
   9  * This file is added to support the common code in eal_common_thread.c
  10  * as Microsoft libc does not contain sched.h. This may be removed
  11  * in future releases.
  12  */
  13 #ifdef __cplusplus
  14 extern "C" {
  15 #endif
  16
  17 #ifndef CPU_SETSIZE
  18 #define CPU_SETSIZE RTE_MAX_LCORE
  19 #endif
  20
  21 #define _BITS_PER_SET (sizeof(long long) * 8)
  22 #define _BIT_SET_MASK (_BITS_PER_SET - 1)
  23
  24 #define _NUM_SETS(b) (((b) + _BIT_SET_MASK) / _BITS_PER_SET)
  25 #define _WHICH_SET(b) ((b) / _BITS_PER_SET)
  26 #define _WHICH_BIT(b) ((b) & (_BITS_PER_SET - 1))
  27
  28 typedef struct _rte_cpuset_s {
  29         long long _bits[_NUM_SETS(CPU_SETSIZE)];
  30 } rte_cpuset_t;
  31
  32 #define CPU_SET(b, s) ((s)->_bits[_WHICH_SET(b)] |= (1LL << _WHICH_BIT(b)))
  33
  34 #define CPU_ZERO(s)                                                     \
  35         do {                                                            \
  36                 unsigned int _i;                                        \
  37                                                                         \
  38                 for (_i = 0; _i < _NUM_SETS(CPU_SETSIZE); _i++)         \
  39                         (s)->_bits[_i] = 0LL;                           \
  40         } while (0)
  41
  42 #ifdef __cplusplus
  43 }
  44 #endif
  45
  46 #endif /* _SCHED_H_ */