pkg sync, method (*RWMutex) Unlock()
pkg sync, method (*WaitGroup) Add(int)
pkg sync, method (*WaitGroup) Done()
pkg sync, method (*WaitGroup) Wait()
pkg sync, type Cond struct
pkg sync, type Cond struct, L Locker
pkg sync, type Locker interface { Lock, Unlock }
pkg sync, type Locker interface, Lock()
pkg sync, type Locker interface, Unlock()
pkg sync, type Mutex struct
pkg sync, type Once struct

pkg os (darwin-amd64-cgo), const O_TRUNC = 1024
pkg os (darwin-amd64-cgo), const PathListSeparator = 58
pkg os (darwin-amd64-cgo), const PathSeparator = 47
pkg os (freebsd-386), const DevNull = "/dev/null"
pkg os (freebsd-386), const O_APPEND = 8
pkg os (freebsd-386), const O_CREATE = 512
pkg os (freebsd-386), const O_EXCL = 2048
pkg os (freebsd-386), const O_SYNC = 128

pkg strings, func IndexByte(string, uint8) int
pkg sync/atomic, func SwapInt32(*int32, int32) int32
pkg sync/atomic, func SwapInt64(*int64, int64) int64
pkg sync/atomic, func SwapPointer(*unsafe.Pointer, unsafe.Pointer) unsafe.Pointer
pkg sync/atomic, func SwapUint32(*uint32, uint32) uint32
pkg sync/atomic, func SwapUint64(*uint64, uint64) uint64
pkg sync/atomic, func SwapUintptr(*uintptr, uintptr) uintptr