1#ifndef _SCHED_H
2#define _SCHED_H
3#ifdef __cplusplus
4extern "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
19struct 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
27int    sched_get_priority_max(int);
28int    sched_get_priority_min(int);
29int    sched_getparam(pid_t, struct sched_param *);
30int    sched_getscheduler(pid_t);
31int    sched_rr_get_interval(pid_t, struct timespec *);
32int    sched_setparam(pid_t, const struct sched_param *);
33int    sched_setscheduler(pid_t, int, const struct sched_param *);
34int     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
69int clone (int (*)(void *), void *, int, void *, ...);
70int unshare(int);
71int setns(int, int);
72
73void *memcpy(void *__restrict, const void *__restrict, size_t);
74int memcmp(const void *, const void *, size_t);
75void *calloc(size_t, size_t);
76void free(void *);
77
78typedef struct cpu_set_t { unsigned long __bits[128/sizeof(long)]; } cpu_set_t;
79int __sched_cpucount(size_t, const cpu_set_t *);
80int sched_getcpu(void);
81int sched_getaffinity(pid_t, size_t, cpu_set_t *);
82int sched_setaffinity(pid_t, size_t, const cpu_set_t *);
83
84#define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \
85	(((unsigned long *)(set))[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) )
86
87#define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=)
88#define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~)
89#define CPU_ISSET_S(i, size, set) __CPU_op_S(i, size, set, &)
90
91#define __CPU_op_func_S(func, op) \
92static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \
93	const cpu_set_t *__src1, const cpu_set_t *__src2) \
94{ \
95	size_t __i; \
96	for (__i=0; __i<__size/sizeof(long); __i++) \
97		((unsigned long *)__dest)[__i] = ((unsigned long *)__src1)[__i] \
98			op ((unsigned long *)__src2)[__i] ; \
99}
100
101__CPU_op_func_S(AND, &)
102__CPU_op_func_S(OR, |)
103__CPU_op_func_S(XOR, ^)
104
105#define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d)
106#define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d)
107#define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d)
108
109#define CPU_COUNT_S(size,set) __sched_cpucount(size,set)
110#define CPU_ZERO_S(size,set) memset(set,0,size)
111#define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size))
112
113#define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \
114	+ ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) )
115#define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n)))
116#define CPU_FREE(set) free(set)
117
118#define CPU_SETSIZE 128
119
120#define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set)
121#define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set)
122#define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set)
123#define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2)
124#define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2)
125#define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2)
126#define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set)
127#define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set)
128#define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2)
129
130#endif
131
132#ifdef __cplusplus
133}
134#endif
135#endif
136