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author | Michael Muré <batolettre@gmail.com> | 2018-07-17 20:23:14 +0200 |
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committer | Michael Muré <batolettre@gmail.com> | 2018-07-17 20:23:14 +0200 |
commit | 1332a6ec0a00b2475bc2b7b35b4c61425361d6b6 (patch) | |
tree | ff9ee93ea4a3bafc99d049d4f0c7b9f199ff0fec /vendor/golang.org/x/sys/unix/fcntl.go | |
parent | 9e6c687fca71103fd7550e25c471b9f805337b09 (diff) | |
download | git-bug-1332a6ec0a00b2475bc2b7b35b4c61425361d6b6.tar.gz |
ls: add some colors
Diffstat (limited to 'vendor/golang.org/x/sys/unix/fcntl.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/fcntl.go | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/fcntl.go b/vendor/golang.org/x/sys/unix/fcntl.go new file mode 100644 index 00000000..9379ba9c --- /dev/null +++ b/vendor/golang.org/x/sys/unix/fcntl.go @@ -0,0 +1,32 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build darwin dragonfly freebsd linux netbsd openbsd + +package unix + +import "unsafe" + +// fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux +// systems by flock_linux_32bit.go to be SYS_FCNTL64. +var fcntl64Syscall uintptr = SYS_FCNTL + +// FcntlInt performs a fcntl syscall on fd with the provided command and argument. +func FcntlInt(fd uintptr, cmd, arg int) (int, error) { + valptr, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(arg)) + var err error + if errno != 0 { + err = errno + } + return int(valptr), err +} + +// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command. +func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error { + _, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk))) + if errno == 0 { + return nil + } + return errno +} |