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 #include <stddef.h> 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 43 #define SCHED_OTHER 0 44 #define SCHED_FIFO 1 45 #define SCHED_RR 2 46 #define SCHED_BATCH 3 47 #define SCHED_IDLE 5 48 #define SCHED_DEADLINE 6 49 #define SCHED_RESET_ON_FORK 0x40000000 50 51 #ifdef _GNU_SOURCE 52 #define CSIGNAL 0x000000ff 53 #define CLONE_NEWTIME 0x00000080 54 #define CLONE_VM 0x00000100 55 #define CLONE_FS 0x00000200 56 #define CLONE_FILES 0x00000400 57 #define CLONE_SIGHAND 0x00000800 58 #define CLONE_PIDFD 0x00001000 59 #define CLONE_PTRACE 0x00002000 60 #define CLONE_VFORK 0x00004000 61 #define CLONE_PARENT 0x00008000 62 #define CLONE_THREAD 0x00010000 63 #define CLONE_NEWNS 0x00020000 64 #define CLONE_SYSVSEM 0x00040000 65 #define CLONE_SETTLS 0x00080000 66 #define CLONE_PARENT_SETTID 0x00100000 67 #define CLONE_CHILD_CLEARTID 0x00200000 68 #define CLONE_DETACHED 0x00400000 69 #define CLONE_UNTRACED 0x00800000 70 #define CLONE_CHILD_SETTID 0x01000000 71 #define CLONE_NEWCGROUP 0x02000000 72 #define CLONE_NEWUTS 0x04000000 73 #define CLONE_NEWIPC 0x08000000 74 #define CLONE_NEWUSER 0x10000000 75 #define CLONE_NEWPID 0x20000000 76 #define CLONE_NEWNET 0x40000000 77 #define CLONE_IO 0x80000000 78 int clone (int (*)(void *), void *, int, void *, ...); 79 int unshare(int); 80 int setns(int, int); 81 82 void *memcpy(void *__restrict, const void *__restrict, size_t); 83 int memcmp(const void *, const void *, size_t); 84 void *memset (void *, int, size_t); 85 void *calloc(size_t, size_t); 86 void free(void *); 87 88 typedef struct cpu_set_t { unsigned long __bits[128/sizeof(long)]; } cpu_set_t; 89 cpu_set_t* __sched_cpualloc(size_t __count); 90 int __sched_cpucount(size_t, const cpu_set_t *); 91 int sched_getcpu(void); 92 int sched_getaffinity(pid_t, size_t, cpu_set_t *); 93 int sched_setaffinity(pid_t, size_t, const cpu_set_t *); 94 95 #define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \ 96 (((unsigned long *)(set))[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) ) 97 98 #define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=) 99 #define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~) 100 #define CPU_ISSET_S(i, size, set) __CPU_op_S(i, size, set, &) 101 102 #define __CPU_op_func_S(func, op) \ 103 static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \ 104 const cpu_set_t *__src1, const cpu_set_t *__src2) \ 105 { \ 106 size_t __i; \ 107 for (__i=0; __i<__size/sizeof(long); __i++) \ 108 ((unsigned long *)__dest)[__i] = ((unsigned long *)__src1)[__i] \ 109 op ((unsigned long *)__src2)[__i] ; \ 110 } 111 112 __CPU_op_func_S(AND, &) 113 __CPU_op_func_S(OR, |) 114 __CPU_op_func_S(XOR, ^) 115 116 #define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d) 117 #define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d) 118 #define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d) 119 120 #define CPU_COUNT_S(size,set) __sched_cpucount(size,set) 121 #define CPU_ZERO_S(size,set) memset(set,0,size) 122 #define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size)) 123 124 #define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \ 125 + ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) ) 126 #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n))) 127 #define CPU_FREE(set) free(set) 128 129 #define CPU_SETSIZE 128 130 131 #define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set) 132 #define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set) 133 #define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set) 134 #define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2) 135 #define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2) 136 #define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2) 137 #define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set) 138 #define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set) 139 #define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2) 140 141 142 #endif 143 144 #if _REDIR_TIME64 145 __REDIR(sched_rr_get_interval, __sched_rr_get_interval_time64); 146 #endif 147 148 #ifdef __cplusplus 149 } 150 #endif 151 #endif 152 153 154