mirror of
https://git.proxmox.com/git/wasi-libc
synced 2025-08-17 20:47:56 +00:00
230d4be6c5
This is the next part of breaking up #518 into smaller PRs. This is the rest of the commits which change the existing `THREAD_MODEL=posix` functionality. It: * _removes_ some functions which are optional and which were already nonfunctional. * (Continues to) establish a precedent of trying to remain as compatible with Open Group specifications as possible, even when there are major differences in WASI capabilities (i.e. thread cancellation) Compared to the RFC PR, the `pthread_atfork` stub has been dropped as it is now officially obsolete as of the very recent Issue 8 of the specifications.
153 lines
4.5 KiB
C
153 lines
4.5 KiB
C
#ifndef _SCHED_H
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#define _SCHED_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <features.h>
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#define __NEED_struct_timespec
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#define __NEED_pid_t
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#define __NEED_time_t
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#ifdef _GNU_SOURCE
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#define __NEED_size_t
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#endif
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#include <bits/alltypes.h>
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struct sched_param {
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int sched_priority;
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int __reserved1;
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#if _REDIR_TIME64
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long __reserved2[4];
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#else
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struct {
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time_t __reserved1;
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long __reserved2;
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} __reserved2[2];
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#endif
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int __reserved3;
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};
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#ifdef __wasilibc_unmodified_upstream /* WASI has no CPU scheduling support. */
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int sched_get_priority_max(int);
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int sched_get_priority_min(int);
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int sched_getparam(pid_t, struct sched_param *);
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int sched_getscheduler(pid_t);
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int sched_rr_get_interval(pid_t, struct timespec *);
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int sched_setparam(pid_t, const struct sched_param *);
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int sched_setscheduler(pid_t, int, const struct sched_param *);
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#endif
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int sched_yield(void);
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#ifdef __wasilibc_unmodified_upstream /* WASI has no CPU scheduling support. */
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#define SCHED_OTHER 0
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#define SCHED_FIFO 1
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#define SCHED_RR 2
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#define SCHED_BATCH 3
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#define SCHED_IDLE 5
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#define SCHED_DEADLINE 6
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#define SCHED_RESET_ON_FORK 0x40000000
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#ifdef _GNU_SOURCE
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#define CSIGNAL 0x000000ff
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#define CLONE_NEWTIME 0x00000080
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#define CLONE_VM 0x00000100
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#define CLONE_FS 0x00000200
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#define CLONE_FILES 0x00000400
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#define CLONE_SIGHAND 0x00000800
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#define CLONE_PIDFD 0x00001000
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#define CLONE_PTRACE 0x00002000
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#define CLONE_VFORK 0x00004000
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#define CLONE_PARENT 0x00008000
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#define CLONE_THREAD 0x00010000
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#define CLONE_NEWNS 0x00020000
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#define CLONE_SYSVSEM 0x00040000
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#define CLONE_SETTLS 0x00080000
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#define CLONE_PARENT_SETTID 0x00100000
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#define CLONE_CHILD_CLEARTID 0x00200000
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#define CLONE_DETACHED 0x00400000
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#define CLONE_UNTRACED 0x00800000
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#define CLONE_CHILD_SETTID 0x01000000
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#define CLONE_NEWCGROUP 0x02000000
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#define CLONE_NEWUTS 0x04000000
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#define CLONE_NEWIPC 0x08000000
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#define CLONE_NEWUSER 0x10000000
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#define CLONE_NEWPID 0x20000000
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#define CLONE_NEWNET 0x40000000
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#define CLONE_IO 0x80000000
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int clone (int (*)(void *), void *, int, void *, ...);
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int unshare(int);
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int setns(int, int);
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void *memcpy(void *__restrict, const void *__restrict, size_t);
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int memcmp(const void *, const void *, size_t);
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void *memset (void *, int, size_t);
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void *calloc(size_t, size_t);
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void free(void *);
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typedef struct cpu_set_t { unsigned long __bits[128/sizeof(long)]; } cpu_set_t;
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int __sched_cpucount(size_t, const cpu_set_t *);
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int sched_getcpu(void);
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int sched_getaffinity(pid_t, size_t, cpu_set_t *);
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int sched_setaffinity(pid_t, size_t, const cpu_set_t *);
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#define __CPU_op_S(i, size, set, op) ( (i)/8U >= (size) ? 0 : \
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(((unsigned long *)(set))[(i)/8/sizeof(long)] op (1UL<<((i)%(8*sizeof(long))))) )
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#define CPU_SET_S(i, size, set) __CPU_op_S(i, size, set, |=)
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#define CPU_CLR_S(i, size, set) __CPU_op_S(i, size, set, &=~)
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#define CPU_ISSET_S(i, size, set) __CPU_op_S(i, size, set, &)
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#define __CPU_op_func_S(func, op) \
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static __inline void __CPU_##func##_S(size_t __size, cpu_set_t *__dest, \
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const cpu_set_t *__src1, const cpu_set_t *__src2) \
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{ \
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size_t __i; \
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for (__i=0; __i<__size/sizeof(long); __i++) \
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((unsigned long *)__dest)[__i] = ((unsigned long *)__src1)[__i] \
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op ((unsigned long *)__src2)[__i] ; \
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}
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__CPU_op_func_S(AND, &)
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__CPU_op_func_S(OR, |)
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__CPU_op_func_S(XOR, ^)
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#define CPU_AND_S(a,b,c,d) __CPU_AND_S(a,b,c,d)
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#define CPU_OR_S(a,b,c,d) __CPU_OR_S(a,b,c,d)
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#define CPU_XOR_S(a,b,c,d) __CPU_XOR_S(a,b,c,d)
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#define CPU_COUNT_S(size,set) __sched_cpucount(size,set)
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#define CPU_ZERO_S(size,set) memset(set,0,size)
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#define CPU_EQUAL_S(size,set1,set2) (!memcmp(set1,set2,size))
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#define CPU_ALLOC_SIZE(n) (sizeof(long) * ( (n)/(8*sizeof(long)) \
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+ ((n)%(8*sizeof(long)) + 8*sizeof(long)-1)/(8*sizeof(long)) ) )
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#define CPU_ALLOC(n) ((cpu_set_t *)calloc(1,CPU_ALLOC_SIZE(n)))
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#define CPU_FREE(set) free(set)
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#define CPU_SETSIZE 128
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#define CPU_SET(i, set) CPU_SET_S(i,sizeof(cpu_set_t),set)
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#define CPU_CLR(i, set) CPU_CLR_S(i,sizeof(cpu_set_t),set)
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#define CPU_ISSET(i, set) CPU_ISSET_S(i,sizeof(cpu_set_t),set)
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#define CPU_AND(d,s1,s2) CPU_AND_S(sizeof(cpu_set_t),d,s1,s2)
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#define CPU_OR(d,s1,s2) CPU_OR_S(sizeof(cpu_set_t),d,s1,s2)
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#define CPU_XOR(d,s1,s2) CPU_XOR_S(sizeof(cpu_set_t),d,s1,s2)
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#define CPU_COUNT(set) CPU_COUNT_S(sizeof(cpu_set_t),set)
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#define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set)
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#define CPU_EQUAL(s1,s2) CPU_EQUAL_S(sizeof(cpu_set_t),s1,s2)
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#endif
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#endif
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#if _REDIR_TIME64
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__REDIR(sched_rr_get_interval, __sched_rr_get_interval_time64);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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