github.com/afumu/libc@v0.0.6/musl/include/sched.h (about)

     1  #ifndef _SCHED_H
     2  #define _SCHED_H
     3  #ifdef __cplusplus
     4  extern "C" {
     5  #endif
     6  
     7  #include <features.h>
     8  
     9  #define __NEED_struct_timespec
    10  #define __NEED_pid_t
    11  #define __NEED_time_t
    12  
    13  #ifdef _GNU_SOURCE
    14  #define __NEED_size_t
    15  #endif
    16  
    17  #include <bits/alltypes.h>
    18  
    19  struct sched_param {
    20  	int sched_priority;
    21  	int __reserved1;
    22  #if _REDIR_TIME64
    23  	long __reserved2[4];
    24  #else
    25  	struct {
    26  		time_t __reserved1;
    27  		long __reserved2;
    28  	} __reserved2[2];
    29  #endif
    30  	int __reserved3;
    31  };
    32  
    33  int    sched_get_priority_max(int);
    34  int    sched_get_priority_min(int);
    35  int    sched_getparam(pid_t, struct sched_param *);
    36  int    sched_getscheduler(pid_t);
    37  int    sched_rr_get_interval(pid_t, struct timespec *);
    38  int    sched_setparam(pid_t, const struct sched_param *);
    39  int    sched_setscheduler(pid_t, int, const struct sched_param *);
    40  int     sched_yield(void);
    41  
    42  #define SCHED_OTHER 0
    43  #define SCHED_FIFO 1
    44  #define SCHED_RR 2
    45  #define SCHED_BATCH 3
    46  #define SCHED_IDLE 5
    47  #define SCHED_DEADLINE 6
    48  #define SCHED_RESET_ON_FORK 0x40000000
    49  
    50  #ifdef _GNU_SOURCE
    51  #define CSIGNAL		0x000000ff
    52  #define CLONE_VM	0x00000100
    53  #define CLONE_FS	0x00000200
    54  #define CLONE_FILES	0x00000400
    55  #define CLONE_SIGHAND	0x00000800
    56  #define CLONE_PIDFD	0x00001000
    57  #define CLONE_PTRACE	0x00002000
    58  #define CLONE_VFORK	0x00004000
    59  #define CLONE_PARENT	0x00008000
    60  #define CLONE_THREAD	0x00010000
    61  #define CLONE_NEWNS	0x00020000
    62  #define CLONE_SYSVSEM	0x00040000
    63  #define CLONE_SETTLS	0x00080000
    64  #define CLONE_PARENT_SETTID	0x00100000
    65  #define CLONE_CHILD_CLEARTID	0x00200000
    66  #define CLONE_DETACHED	0x00400000
    67  #define CLONE_UNTRACED	0x00800000
    68  #define CLONE_CHILD_SETTID	0x01000000
    69  #define CLONE_NEWCGROUP	0x02000000
    70  #define CLONE_NEWUTS	0x04000000
    71  #define CLONE_NEWIPC	0x08000000
    72  #define CLONE_NEWUSER	0x10000000
    73  #define CLONE_NEWPID	0x20000000
    74  #define CLONE_NEWNET	0x40000000
    75  #define CLONE_IO	0x80000000
    76  int clone (int (*)(void *), void *, int, void *, ...);
    77  int unshare(int);
    78  int setns(int, int);
    79  
    80  void *memcpy(void *__restrict, const void *__restrict, size_t);
    81  int memcmp(const void *, const void *, size_t);
    82  void *memset (void *, int, size_t);
    83  void *calloc(size_t, size_t);
    84  void free(void *);
    85  
    86  typedef struct cpu_set_t { unsigned long __bits[128/sizeof(long)]; } cpu_set_t;
    87  int __sched_cpucount(size_t, const cpu_set_t *);
    88  int sched_getcpu(void);
    89  int sched_getaffinity(pid_t, size_t, cpu_set_t *);
    90  int sched_setaffinity(pid_t, size_t, const cpu_set_t *);
    91  
    92  #define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \
    93  	(((unsigned long *)(set))[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) )
    94  
    95  #define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=)
    96  #define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~)
    97  #define CPU_ISSET_S(i, size, set) __CPU_op_S(i, size, set, &)
    98  
    99  #define __CPU_op_func_S(func, op) \
   100  static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \
   101  	const cpu_set_t *__src1, const cpu_set_t *__src2) \
   102  { \
   103  	size_t __i; \
   104  	for (__i=0; __i<__size/sizeof(long); __i++) \
   105  		((unsigned long *)__dest)[__i] = ((unsigned long *)__src1)[__i] \
   106  			op ((unsigned long *)__src2)[__i] ; \
   107  }
   108  
   109  __CPU_op_func_S(AND, &)
   110  __CPU_op_func_S(OR, |)
   111  __CPU_op_func_S(XOR, ^)
   112  
   113  #define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d)
   114  #define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d)
   115  #define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d)
   116  
   117  #define CPU_COUNT_S(size,set) __sched_cpucount(size,set)
   118  #define CPU_ZERO_S(size,set) memset(set,0,size)
   119  #define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size))
   120  
   121  #define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \
   122  	+ ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) )
   123  #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n)))
   124  #define CPU_FREE(set) free(set)
   125  
   126  #define CPU_SETSIZE 128
   127  
   128  #define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set)
   129  #define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set)
   130  #define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set)
   131  #define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2)
   132  #define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2)
   133  #define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2)
   134  #define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set)
   135  #define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set)
   136  #define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2)
   137  
   138  #endif
   139  
   140  #if _REDIR_TIME64
   141  __REDIR(sched_rr_get_interval, __sched_rr_get_interval_time64);
   142  #endif
   143  
   144  #ifdef __cplusplus
   145  }
   146  #endif
   147  #endif