github.com/c12o16h1/go/src@v0.0.0-20200114212001-5a151c0f00ed/syscall/syscall_darwin_arm64.go (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package syscall
     6  
     7  import "unsafe"
     8  
     9  func setTimespec(sec, nsec int64) Timespec {
    10  	return Timespec{Sec: int64(sec), Nsec: int64(nsec)}
    11  }
    12  
    13  func setTimeval(sec, usec int64) Timeval {
    14  	return Timeval{Sec: int64(sec), Usec: int32(usec)}
    15  }
    16  
    17  //sys	Fstat(fd int, stat *Stat_t) (err error)
    18  //sys	Fstatfs(fd int, stat *Statfs_t) (err error)
    19  //sysnb	Gettimeofday(tp *Timeval) (err error)
    20  //sys	Lstat(path string, stat *Stat_t) (err error)
    21  //sys	Stat(path string, stat *Stat_t) (err error)
    22  //sys	Statfs(path string, stat *Statfs_t) (err error)
    23  //sys   fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
    24  
    25  // Marked nosplit because it is called from forkAndExecInChild where
    26  // stack growth is forbidden.
    27  //go:nosplit
    28  func ptrace(request int, pid int, addr uintptr, data uintptr) error {
    29  	return ENOTSUP
    30  }
    31  
    32  func SetKevent(k *Kevent_t, fd, mode, flags int) {
    33  	k.Ident = uint64(fd)
    34  	k.Filter = int16(mode)
    35  	k.Flags = uint16(flags)
    36  }
    37  
    38  func (iov *Iovec) SetLen(length int) {
    39  	iov.Len = uint64(length)
    40  }
    41  
    42  func (msghdr *Msghdr) SetControllen(length int) {
    43  	msghdr.Controllen = uint32(length)
    44  }
    45  
    46  func (cmsg *Cmsghdr) SetLen(length int) {
    47  	cmsg.Len = uint32(length)
    48  }
    49  
    50  func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
    51  	var length = uint64(count)
    52  
    53  	_, _, e1 := syscall6(funcPC(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(unsafe.Pointer(&length)), 0, 0)
    54  
    55  	written = int(length)
    56  
    57  	if e1 != 0 {
    58  		err = e1
    59  	}
    60  	return
    61  }
    62  
    63  func libc_sendfile_trampoline()
    64  
    65  //go:linkname libc_sendfile libc_sendfile
    66  //go:cgo_import_dynamic libc_sendfile sendfile "/usr/lib/libSystem.B.dylib"
    67  
    68  // Implemented in the runtime package (runtime/sys_darwin_64.go)
    69  func syscallX(fn, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno)
    70  
    71  func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno) // sic