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author | Kali Kaneko (leap communications) <kali@leap.se> | 2018-12-13 19:45:48 +0100 |
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committer | Kali Kaneko (leap communications) <kali@leap.se> | 2018-12-13 19:47:11 +0100 |
commit | 81843a0477c5eba4b3d4f6ff932f748f9e1244e7 (patch) | |
tree | 6068ae0ff1d8ac617e2781fb8aa68200e71403f2 /vendor/golang.org/x/sys/unix/flock.go | |
parent | ac56a90e21118dc1ddfc1bd5e69d87f157710412 (diff) |
vendor packages
Diffstat (limited to 'vendor/golang.org/x/sys/unix/flock.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/flock.go | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/flock.go b/vendor/golang.org/x/sys/unix/flock.go new file mode 100644 index 0000000..2994ce7 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/flock.go @@ -0,0 +1,22 @@ +// 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 + +// 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 +} |