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