github.com/llvm-mirror/llgo@v0.0.0-20190322182713-bf6f0a60fce1/third_party/gofrontend/libgo/go/syscall/libcall_bsd.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  // BSD library calls.
     6  
     7  package syscall
     8  
     9  import "unsafe"
    10  
    11  //sys	sendfile(outfd int, infd int, offset *Offset_t, count int) (written int, err error)
    12  //sendfile(outfd _C_int, infd _C_int, offset *Offset_t, count Size_t) Ssize_t
    13  func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
    14  	if raceenabled {
    15  		raceReleaseMerge(unsafe.Pointer(&ioSync))
    16  	}
    17  	var soff Offset_t
    18  	var psoff *Offset_t
    19  	if offset != nil {
    20  		soff = Offset_t(*offset)
    21  		psoff = &soff
    22  	}
    23  	written, err = sendfile(outfd, infd, psoff, count)
    24  	if offset != nil {
    25  		*offset = int64(soff)
    26  	}
    27  	return
    28  }