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 20 #ifdef __LITEOS_A__ 21 struct sched_param { 22 union { 23 int sched_priority; 24 int sched_runtime; 25 }; 26 int sched_deadline; 27 int sched_period; 28 }; 29 #else 30 struct sched_param { 31 int sched_priority; 32 int __reserved1; 33 #if _REDIR_TIME64 34 long __reserved2[4]; 35 #else 36 struct { 37 time_t __reserved1; 38 long __reserved2; 39 } __reserved2[2]; 40 #endif 41 int __reserved3; 42 }; 43 #endif 44 45 int sched_get_priority_max(int); 46 int sched_get_priority_min(int); 47 int sched_getparam(pid_t, struct sched_param *); 48 int sched_getscheduler(pid_t); 49 int sched_rr_get_interval(pid_t, struct timespec *); 50 int sched_setparam(pid_t, const struct sched_param *); 51 int sched_setscheduler(pid_t, int, const struct sched_param *); 52 int sched_yield(void); 53 54 #define SCHED_OTHER 0 55 #define SCHED_FIFO 1 56 #define SCHED_RR 2 57 #define SCHED_BATCH 3 58 #define SCHED_IDLE 5 59 #define SCHED_DEADLINE 6 60 #define SCHED_RESET_ON_FORK 0x40000000 61 62 #ifdef _GNU_SOURCE 63 #define CSIGNAL 0x000000ff 64 #define CLONE_NEWTIME 0x00000080 65 #define CLONE_VM 0x00000100 66 #define CLONE_FS 0x00000200 67 #define CLONE_FILES 0x00000400 68 #define CLONE_SIGHAND 0x00000800 69 #define CLONE_PIDFD 0x00001000 70 #define CLONE_PTRACE 0x00002000 71 #define CLONE_VFORK 0x00004000 72 #define CLONE_PARENT 0x00008000 73 #define CLONE_THREAD 0x00010000 74 #define CLONE_NEWNS 0x00020000 75 #define CLONE_SYSVSEM 0x00040000 76 #define CLONE_SETTLS 0x00080000 77 #define CLONE_PARENT_SETTID 0x00100000 78 #define CLONE_CHILD_CLEARTID 0x00200000 79 #define CLONE_DETACHED 0x00400000 80 #define CLONE_UNTRACED 0x00800000 81 #define CLONE_CHILD_SETTID 0x01000000 82 #define CLONE_NEWCGROUP 0x02000000 83 #define CLONE_NEWUTS 0x04000000 84 #define CLONE_NEWIPC 0x08000000 85 #define CLONE_NEWUSER 0x10000000 86 #define CLONE_NEWPID 0x20000000 87 #define CLONE_NEWNET 0x40000000 88 #define CLONE_IO 0x80000000 89 int clone (int (*)(void *), void *, int, void *, ...); 90 int unshare(int); 91 int setns(int, int); 92 93 void *memcpy(void *__restrict, const void *__restrict, size_t); 94 int memcmp(const void *, const void *, size_t); 95 void *memset (void *, int, size_t); 96 void *calloc(size_t, size_t); 97 void free(void *); 98 99 typedef struct cpu_set_t { unsigned long __bits[128/sizeof(long)]; } cpu_set_t; 100 cpu_set_t* __sched_cpualloc(size_t __count); 101 int __sched_cpucount(size_t, const cpu_set_t *); 102 int sched_getcpu(void); 103 int sched_getaffinity(pid_t, size_t, cpu_set_t *); 104 int sched_setaffinity(pid_t, size_t, const cpu_set_t *); 105 106 #define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \ 107 (((unsigned long *)(set))[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) ) 108 109 #define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=) 110 #define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~) 111 #define CPU_ISSET_S(i, size, set) __CPU_op_S(i, size, set, &) 112 113 #define __CPU_op_func_S(func, op) \ 114 static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \ 115 const cpu_set_t *__src1, const cpu_set_t *__src2) \ 116 { \ 117 size_t __i; \ 118 for (__i=0; __i<__size/sizeof(long); __i++) \ 119 ((unsigned long *)__dest)[__i] = ((unsigned long *)__src1)[__i] \ 120 op ((unsigned long *)__src2)[__i] ; \ 121 } 122 123 __CPU_op_func_S(AND, &) 124 __CPU_op_func_S(OR, |) 125 __CPU_op_func_S(XOR, ^) 126 127 #define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d) 128 #define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d) 129 #define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d) 130 131 #define CPU_COUNT_S(size,set) __sched_cpucount(size,set) 132 #define CPU_ZERO_S(size,set) memset(set,0,size) 133 #define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size)) 134 135 #define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \ 136 + ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) ) 137 #define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n))) 138 #define CPU_FREE(set) free(set) 139 140 #define CPU_SETSIZE 1024 141 142 #define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set) 143 #define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set) 144 #define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set) 145 #define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2) 146 #define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2) 147 #define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2) 148 #define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set) 149 #define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set) 150 #define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2) 151 152 #endif 153 154 #if _REDIR_TIME64 155 __REDIR(sched_rr_get_interval, __sched_rr_get_interval_time64); 156 #endif 157 158 #ifdef __cplusplus 159 } 160 #endif 161 #endif 162