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