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

     1  // Copyright 2014 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: int32(sec), Nsec: int32(nsec)}
    11  }
    12  
    13  func setTimeval(sec, usec int64) Timeval {
    14  	return Timeval{Sec: int32(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 = uint32(fd)
    34  	k.Filter = int16(mode)
    35  	k.Flags = uint16(flags)
    36  }
    37  
    38  func (iov *Iovec) SetLen(length int) {
    39  	iov.Len = uint32(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 := Syscall9(funcPC(libc_sendfile_trampoline), uintptr(infd), uintptr(outfd), uintptr(*offset), uintptr(*offset>>32), uintptr(unsafe.Pointer(&length)), 0, 0, 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_32.go)
    69  func syscall9(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9 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