prysm-pulse/vendor/golang.org/x/sys/unix/flock.go
Fynn 5b5cae693f accounts/abi: use unpackTuple to unpack event arguments
Events with just 1 argument fail before this change


Former-commit-id: 69cbb51c56054208417e464dc6e46a94ccb3bbeb [formerly fbb03244929beb0ce8f9c607ce33d107e8319b89]
Former-commit-id: 984154c1ba79f1fe8bf0106a604b2765ea312079
2018-02-16 11:46:25 +01:00

23 lines
695 B
Go

// 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
}