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 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 27 int sched_get_priority_max(int); 28 int sched_get_priority_min(int); 29 int sched_getparam(pid_t, struct sched_param *); 30 int sched_getscheduler(pid_t); 31 int sched_rr_get_interval(pid_t, struct timespec *); 32 int sched_setparam(pid_t, const struct sched_param *); 33 int sched_setscheduler(pid_t, int, const struct sched_param *); 34 int 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 69 int clone (int (*)(void *), void *, int, void *, ...); 70 int unshare(int); 71 int setns(int, int); 72 73 void *memcpy(void *__restrict, const void *__restrict, size_t); 74 int memcmp(const void *, const void *, size_t); 75 void *memset (void *, int, size_t); 76 void *calloc(size_t, size_t); 77 void free(void *); 78 79 typedef struct cpu_set_t { unsigned long __bits[128/sizeof(long)]; } cpu_set_t; 80 int __sched_cpucount(size_t, const cpu_set_t *); 81 int sched_getcpu(void); 82 int sched_getaffinity(pid_t, size_t, cpu_set_t *); 83 int sched_setaffinity(pid_t, size_t, const cpu_set_t *); 84 85 #define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \ 86 (((unsigned long *)(set))[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) ) 87 88 #define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=) 89 #define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~) 90 #define CPU_ISSET_S(i, size, set) __CPU_op_S(i, size, set, &) 91 92 #define __CPU_op_func_S(func, op) \ 93 static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \ 94 const cpu_set_t *__src1, const cpu_set_t *__src2) \ 95 { \ 96 size_t __i; \ 97 for (__i=0; __i<__size/sizeof(long); __i++) \ 98 ((unsigned long *)__dest)[__i] = ((unsigned long *)__src1)[__i] \ 99 op ((unsigned long *)__src2)[__i] ; \ 100 } 101 102 __CPU_op_func_S(AND, &) 103 __CPU_op_func_S(OR, |) 104 __CPU_op_func_S(XOR, ^) 105 106 #define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d) 107 #define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d) 108 #define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d) 109 110 #define CPU_COUNT_S(size,set) __sched_cpucount(size,set) 111 #define CPU_ZERO_S(size,set) memset(set,0,size) 112 #define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size)) 113 114 #define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \ 115 + ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) ) 116 #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n))) 117 #define CPU_FREE(set) free(set) 118 119 #define CPU_SETSIZE 128 120 121 #define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set) 122 #define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set) 123 #define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set) 124 #define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2) 125 #define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2) 126 #define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2) 127 #define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set) 128 #define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set) 129 #define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2) 130 131 #endif 132 133 #ifdef __cplusplus 134 } 135 #endif 136 #endif 137