// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build riscv64 && linux

package unix

import "unsafe"

//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	Fstat(fd int, stat *Stat_t) (err error)

//sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)

func Stat(path string, stat *Stat_t) (err error) {
	return fstatat(_AT_FDCWD, path, stat, 0)
}

func Lchown(path string, uid int, gid int) (err error) {

package unix

import (
	"syscall"
	"unsafe"
)

func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)

//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64

package syscall

import "unsafe"

const (
	_SYS_setgroups  = SYS_SETGROUPS
	_SYS_clone3     = 435
	_SYS_faccessat2 = 439
	_SYS_fchmodat2  = 452
)

//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	Fstat(fd int, stat *Stat_t) (err error)
//sys	fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error)

func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
	var _p0 unsafe.Pointer
	if len(events) > 0 {
		_p0 = unsafe.Pointer(&events[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := Syscall6(SYS_EPOLL_PWAIT, uintptr(epfd), uintptr(_p0), uintptr(len(events)), uintptr(msec), 0, 0)
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// license that can be found in the LICENSE file.

//go:build linux && ppc

package unix

import (
	"syscall"
	"unsafe"
)

//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
//sys	Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64

//sys	Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64

//sys	mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error)
//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)

func Stat(path string, stat *Stat_t) (err error) {
	return fstatat(_AT_FDCWD, path, stat, 0)
}

func Lchown(path string, uid int, gid int) (err error) {

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build linux && (mips64 || mips64le)

package unix

//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
//sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
//sys	Fchown(fd int, uid int, gid int) (err error)
//sys	Fstatfs(fd int, buf *Statfs_t) (err error)

func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
	var _p0 unsafe.Pointer
	if len(events) > 0 {
		_p0 = unsafe.Pointer(&events[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := Syscall6(SYS_EPOLL_PWAIT, uintptr(epfd), uintptr(_p0), uintptr(len(events)), uintptr(msec), 0, 0)
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

//sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
//sys	Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
//sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
//sys	EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)

func Fstatfs(fd int, buf *Statfs_t) (err error) {
	_, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
	if e != 0 {
		err = errnoErr(e)
	}
	return