golang runtime 代码
文件路径：/src/sync/runtime.go
/ Copyright 2012 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.
package sync
import "unsafe"
/ defined in package runtime
/ Semacquire waits until *s > 0 and then atomically decrements it.
/ It is intended as a simple sleep primitive for use by the synchronization
/ library and should not be used directly.
func runtime_Semacquire(s *uint32)
/ SemacquireMutex is like Semacquire, but for profiling contended Mutexes.
/ If lifo is true, queue waiter at the head of wait queue.
/ skipframes is the number of frames to omit during tracing, counting from
/ runtime_SemacquireMutex's caller.
func runtime_SemacquireMutex(s *uint32, lifo bool, skipframes int)
/ Semrelease atomically increments *s and notifies a waiting goroutine
/ if one is blocked in Semacquire.
/ It is intended as a simple wakeup primitive for use by the synchronization
/ library and should not be used directly.
/ If handoff is true, pass count directly to the first waiter.
/ skipframes is the number of frames to omit during tracing, counting from
/ runtime_Semrelease's caller.
func runtime_Semrelease(s *uint32, handoff bool, skipframes int)
/ See runtime/sema.go for documentation.
func runtime_notifyListAdd(l *notifyList) uint32
/ See runtime/sema.go for documentation.
func runtime_notifyListWait(l *notifyList, t uint32)
/ See runtime/sema.go for documentation.
func runtime_notifyListNotifyAll(l *notifyList)
/ See runtime/sema.go for documentation.
func runtime_notifyListNotifyOne(l *notifyList)
/ Ensure that sync and runtime agree on size of notifyList.
func runtime_notifyListCheck(size uintptr)
func init() {
var n notifyList
runtime_notifyListCheck(unsafe.Sizeof(n))
}
/ Active spinning runtime support.
/ runtime_canSpin reports whether spinning makes sense at the moment.
func runtime_canSpin(i int) bool
/ runtime_doSpin does active spinning.
func runtime_doSpin()
func runtime_nanotime() int64