diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_unix.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/syscall_unix.go | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_unix.go b/vendor/golang.org/x/sys/unix/syscall_unix.go index 33583a22b..3de37566c 100644 --- a/vendor/golang.org/x/sys/unix/syscall_unix.go +++ b/vendor/golang.org/x/sys/unix/syscall_unix.go @@ -28,6 +28,11 @@ var ( errENOENT error = syscall.ENOENT ) +var ( + signalNameMapOnce sync.Once + signalNameMap map[string]syscall.Signal +) + // errnoErr returns common boxed Errno values, to prevent // allocations at runtime. func errnoErr(e syscall.Errno) error { @@ -66,6 +71,19 @@ func SignalName(s syscall.Signal) string { return "" } +// SignalNum returns the syscall.Signal for signal named s, +// or 0 if a signal with such name is not found. +// The signal name should start with "SIG". +func SignalNum(s string) syscall.Signal { + signalNameMapOnce.Do(func() { + signalNameMap = make(map[string]syscall.Signal) + for _, signal := range signalList { + signalNameMap[signal.name] = signal.num + } + }) + return signalNameMap[s] +} + // clen returns the index of the first NULL byte in n or len(n) if n contains no NULL byte. func clen(n []byte) int { i := bytes.IndexByte(n, 0) @@ -276,6 +294,13 @@ func GetsockoptTimeval(fd, level, opt int) (*Timeval, error) { return &tv, err } +func GetsockoptUint64(fd, level, opt int) (value uint64, err error) { + var n uint64 + vallen := _Socklen(8) + err = getsockopt(fd, level, opt, unsafe.Pointer(&n), &vallen) + return n, err +} + func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) { var rsa RawSockaddrAny var len _Socklen = SizeofSockaddrAny @@ -326,13 +351,21 @@ func SetsockoptLinger(fd, level, opt int, l *Linger) (err error) { } func SetsockoptString(fd, level, opt int, s string) (err error) { - return setsockopt(fd, level, opt, unsafe.Pointer(&[]byte(s)[0]), uintptr(len(s))) + var p unsafe.Pointer + if len(s) > 0 { + p = unsafe.Pointer(&[]byte(s)[0]) + } + return setsockopt(fd, level, opt, p, uintptr(len(s))) } func SetsockoptTimeval(fd, level, opt int, tv *Timeval) (err error) { return setsockopt(fd, level, opt, unsafe.Pointer(tv), unsafe.Sizeof(*tv)) } +func SetsockoptUint64(fd, level, opt int, value uint64) (err error) { + return setsockopt(fd, level, opt, unsafe.Pointer(&value), 8) +} + func Socket(domain, typ, proto int) (fd int, err error) { if domain == AF_INET6 && SocketDisableIPv6 { return -1, EAFNOSUPPORT @@ -377,3 +410,22 @@ func SetNonblock(fd int, nonblocking bool) (err error) { func Exec(argv0 string, argv []string, envv []string) error { return syscall.Exec(argv0, argv, envv) } + +// Lutimes sets the access and modification times tv on path. If path refers to +// a symlink, it is not dereferenced and the timestamps are set on the symlink. +// If tv is nil, the access and modification times are set to the current time. +// Otherwise tv must contain exactly 2 elements, with access time as the first +// element and modification time as the second element. +func Lutimes(path string, tv []Timeval) error { + if tv == nil { + return UtimesNanoAt(AT_FDCWD, path, nil, AT_SYMLINK_NOFOLLOW) + } + if len(tv) != 2 { + return EINVAL + } + ts := []Timespec{ + NsecToTimespec(TimevalToNsec(tv[0])), + NsecToTimespec(TimevalToNsec(tv[1])), + } + return UtimesNanoAt(AT_FDCWD, path, ts, AT_SYMLINK_NOFOLLOW) +} |