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 #define __NEED_struct_sched_param 17 #define __NEED_struct_cpu_set_t 18 19 #include <bits/alltypes.h> 20 21 int sched_get_priority_max(int); 22 int sched_get_priority_min(int); 23 int sched_getparam(pid_t, struct sched_param *); 24 int sched_getscheduler(pid_t); 25 int sched_rr_get_interval(pid_t, struct timespec *); 26 int sched_setparam(pid_t, const struct sched_param *); 27 int sched_setscheduler(pid_t, int, const struct sched_param *); 28 int sched_yield(void); 29 30 #define SCHED_OTHER 0 31 #define SCHED_FIFO 1 32 #define SCHED_RR 2 33 #define SCHED_BATCH 3 34 #define SCHED_IDLE 5 35 #define SCHED_DEADLINE 6 36 #define SCHED_RESET_ON_FORK 0x40000000 37 38 #define __CPU_BITTYPE unsigned long int /* mandated by the kernel */ 39 #ifdef _GNU_SOURCE 40 #define CSIGNAL 0x000000ff 41 #define CLONE_NEWTIME 0x00000080 42 #define CLONE_VM 0x00000100 43 #define CLONE_FS 0x00000200 44 #define CLONE_FILES 0x00000400 45 #define CLONE_SIGHAND 0x00000800 46 #define CLONE_PIDFD 0x00001000 47 #define CLONE_PTRACE 0x00002000 48 #define CLONE_VFORK 0x00004000 49 #define CLONE_PARENT 0x00008000 50 #define CLONE_THREAD 0x00010000 51 #define CLONE_NEWNS 0x00020000 52 #define CLONE_SYSVSEM 0x00040000 53 #define CLONE_SETTLS 0x00080000 54 #define CLONE_PARENT_SETTID 0x00100000 55 #define CLONE_CHILD_CLEARTID 0x00200000 56 #define CLONE_DETACHED 0x00400000 57 #define CLONE_UNTRACED 0x00800000 58 #define CLONE_CHILD_SETTID 0x01000000 59 #define CLONE_NEWCGROUP 0x02000000 60 #define CLONE_NEWUTS 0x04000000 61 #define CLONE_NEWIPC 0x08000000 62 #define CLONE_NEWUSER 0x10000000 63 #define CLONE_NEWPID 0x20000000 64 #define CLONE_NEWNET 0x40000000 65 #define CLONE_IO 0x80000000 66 int clone (int (*)(void *), void *, int, void *, ...); 67 int unshare(int); 68 int setns(int, int); 69 70 void *memcpy(void *__restrict, const void *__restrict, size_t); 71 int memcmp(const void *, const void *, size_t); 72 void *memset (void *, int, size_t); 73 void *calloc(size_t, size_t); 74 void free(void *); 75 76 int __sched_cpucount(size_t, const cpu_set_t *); 77 int sched_getcpu(void); 78 int sched_getaffinity(pid_t, size_t, cpu_set_t *); 79 int sched_setaffinity(pid_t, size_t, const cpu_set_t *); 80 81 #define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \ 82 (((unsigned long *)(set))[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) ) 83 84 #define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=) 85 #define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~) 86 #define CPU_ISSET_S(i, size, set) (__CPU_op_S(i, size, set, &) != 0) 87 88 #define __CPU_op_func_S(func, op) \ 89 static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \ 90 const cpu_set_t *__src1, const cpu_set_t *__src2) \ 91 { \ 92 size_t __i; \ 93 for (__i=0; __i<__size/sizeof(long); __i++) \ 94 ((unsigned long *)__dest)[__i] = ((unsigned long *)__src1)[__i] \ 95 op ((unsigned long *)__src2)[__i] ; \ 96 } 97 98 __CPU_op_func_S(AND, &) 99 __CPU_op_func_S(OR, |) 100 __CPU_op_func_S(XOR, ^) 101 102 #define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d) 103 #define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d) 104 #define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d) 105 106 #define CPU_COUNT_S(size,set) __sched_cpucount(size,set) 107 #define CPU_ZERO_S(size,set) memset(set,0,size) 108 #define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size)) 109 110 #define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \ 111 + ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) ) 112 #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n))) 113 #define CPU_FREE(set) free(set) 114 115 #define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set) 116 #define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set) 117 #define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set) 118 #define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2) 119 #define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2) 120 #define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2) 121 #define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set) 122 #define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set) 123 #define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2) 124 125 #endif 126 127 #if _REDIR_TIME64 128 __REDIR(sched_rr_get_interval, __sched_rr_get_interval_time64); 129 #endif 130 131 #ifdef __cplusplus 132 } 133 #endif 134 #endif 135