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authorDuco van Amstel <helcaraxan@gmail.com>2018-11-18 00:28:29 +0000
committerDuco van Amstel <helcaraxan@gmail.com>2018-11-18 01:10:15 +0000
commit692bb8faa7c4000953b0622a77126193f8fd0383 (patch)
treeb0966b9aa86eb8d02d423221bed21893959de4eb /vendor/golang.org/x/sys/unix/fcntl.go
parent455a0fc2394ea52955ed386663ded9a9dceab83f (diff)
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Upgrade logrus / testify to stable versions
Diffstat (limited to 'vendor/golang.org/x/sys/unix/fcntl.go')
-rw-r--r--vendor/golang.org/x/sys/unix/fcntl.go32
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
+}