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 union { 21 int sched_priority; 22 int sched_runtime; 23 }; 24 int sched_deadline; 25 int sched_period; 26 }; 27 28 int sched_get_priority_max(int); 29 int sched_get_priority_min(int); 30 int sched_getparam(pid_t, struct sched_param *); 31 int sched_getscheduler(pid_t); 32 int sched_rr_get_interval(pid_t, struct timespec *); 33 int sched_setparam(pid_t, const struct sched_param *); 34 int sched_setscheduler(pid_t, int, const struct sched_param *); 35 int sched_yield(void); 36 37 #define SCHED_OTHER 0 38 #define SCHED_FIFO 1 39 #define SCHED_RR 2 40 #define SCHED_BATCH 3 41 #define SCHED_IDLE 5 42 #define SCHED_DEADLINE 6 43 #define SCHED_RESET_ON_FORK 0x40000000 44 45 #ifdef _GNU_SOURCE 46 #define CSIGNAL 0x000000ff 47 #define CLONE_NEWTIME 0x00000080 48 #define CLONE_VM 0x00000100 49 #define CLONE_FS 0x00000200 50 #define CLONE_FILES 0x00000400 51 #define CLONE_SIGHAND 0x00000800 52 #define CLONE_PIDFD 0x00001000 53 #define CLONE_PTRACE 0x00002000 54 #define CLONE_VFORK 0x00004000 55 #define CLONE_PARENT 0x00008000 56 #define CLONE_THREAD 0x00010000 57 #define CLONE_NEWNS 0x00020000 58 #define CLONE_SYSVSEM 0x00040000 59 #define CLONE_SETTLS 0x00080000 60 #define CLONE_PARENT_SETTID 0x00100000 61 #define CLONE_CHILD_CLEARTID 0x00200000 62 #define CLONE_DETACHED 0x00400000 63 #define CLONE_UNTRACED 0x00800000 64 #define CLONE_CHILD_SETTID 0x01000000 65 #define CLONE_NEWCGROUP 0x02000000 66 #define CLONE_NEWUTS 0x04000000 67 #define CLONE_NEWIPC 0x08000000 68 #define CLONE_NEWUSER 0x10000000 69 #define CLONE_NEWPID 0x20000000 70 #define CLONE_NEWNET 0x40000000 71 #define CLONE_IO 0x80000000 72 int clone (int (*)(void *), void *, int, void *, ...); 73 int unshare(int); 74 int setns(int, int); 75 76 void *memcpy(void *__restrict, const void *__restrict, size_t); 77 int memcmp(const void *, const void *, size_t); 78 void *memset (void *, int, size_t); 79 void *calloc(size_t, size_t); 80 void free(void *); 81 82 typedef struct cpu_set_t { unsigned long __bits[128/sizeof(long)]; } cpu_set_t; 83 int __sched_cpucount(size_t, const cpu_set_t *); 84 int sched_getcpu(void); 85 int sched_getaffinity(pid_t, size_t, cpu_set_t *); 86 int sched_setaffinity(pid_t, size_t, const cpu_set_t *); 87 88 #define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \ 89 (((unsigned long *)(set))[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) ) 90 91 #define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=) 92 #define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~) 93 #define CPU_ISSET_S(i, size, set) __CPU_op_S(i, size, set, &) 94 95 #define __CPU_op_func_S(func, op) \ 96 static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \ 97 const cpu_set_t *__src1, const cpu_set_t *__src2) \ 98 { \ 99 size_t __i; \ 100 for (__i=0; __i<__size/sizeof(long); __i++) \ 101 ((unsigned long *)__dest)[__i] = ((unsigned long *)__src1)[__i] \ 102 op ((unsigned long *)__src2)[__i] ; \ 103 } 104 105 __CPU_op_func_S(AND, &) 106 __CPU_op_func_S(OR, |) 107 __CPU_op_func_S(XOR, ^) 108 109 #define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d) 110 #define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d) 111 #define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d) 112 113 #define CPU_COUNT_S(size,set) __sched_cpucount(size,set) 114 #define CPU_ZERO_S(size,set) memset(set,0,size) 115 #define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size)) 116 117 #define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \ 118 + ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) ) 119 #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n))) 120 #define CPU_FREE(set) free(set) 121 122 #define CPU_SETSIZE 128 123 124 #define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set) 125 #define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set) 126 #define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set) 127 #define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2) 128 #define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2) 129 #define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2) 130 #define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set) 131 #define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set) 132 #define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2) 133 134 #endif 135 136 #if _REDIR_TIME64 137 __REDIR(sched_rr_get_interval, __sched_rr_get_interval_time64); 138 #endif 139 140 #ifdef __cplusplus 141 } 142 #endif 143 #endif 144