summaryrefslogtreecommitdiffstats
path: root/vendor/golang.org/x/sys/unix/flock.go
diff options
context:
space:
mode:
authorRastislav Szabo <raszabo@cisco.com>2017-05-04 11:09:03 +0200
committerRastislav Szabo <raszabo@cisco.com>2017-05-04 11:12:35 +0200
commita101d966133a70b8a76526be25070436d14fcf9f (patch)
tree75e2dbf20de615e58252b780b2ba5baae8fdcf82 /vendor/golang.org/x/sys/unix/flock.go
parenta968ead74525125dff9ae90b1c9a9102e4327900 (diff)
initial commit
Signed-off-by: Rastislav Szabo <raszabo@cisco.com>
Diffstat (limited to 'vendor/golang.org/x/sys/unix/flock.go')
-rw-r--r--vendor/golang.org/x/sys/unix/flock.go24
1 files changed, 24 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..ce67a59
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/flock.go
@@ -0,0 +1,24 @@
+// +build linux darwin freebsd openbsd netbsd dragonfly
+
+// 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
+}