export_test.go

Documentation: sync

		 1  // Copyright 2012 The Go Authors. All rights reserved.
		 2  // Use of this source code is governed by a BSD-style
		 3  // license that can be found in the LICENSE file.
		 4  
		 5  package sync
		 6  
		 7  // Export for testing.
		 8  var Runtime_Semacquire = runtime_Semacquire
		 9  var Runtime_Semrelease = runtime_Semrelease
		10  var Runtime_procPin = runtime_procPin
		11  var Runtime_procUnpin = runtime_procUnpin
		12  
		13  // poolDequeue testing.
		14  type PoolDequeue interface {
		15  	PushHead(val interface{}) bool
		16  	PopHead() (interface{}, bool)
		17  	PopTail() (interface{}, bool)
		18  }
		19  
		20  func NewPoolDequeue(n int) PoolDequeue {
		21  	d := &poolDequeue{
		22  		vals: make([]eface, n),
		23  	}
		24  	// For testing purposes, set the head and tail indexes close
		25  	// to wrapping around.
		26  	d.headTail = d.pack(1<<dequeueBits-500, 1<<dequeueBits-500)
		27  	return d
		28  }
		29  
		30  func (d *poolDequeue) PushHead(val interface{}) bool {
		31  	return d.pushHead(val)
		32  }
		33  
		34  func (d *poolDequeue) PopHead() (interface{}, bool) {
		35  	return d.popHead()
		36  }
		37  
		38  func (d *poolDequeue) PopTail() (interface{}, bool) {
		39  	return d.popTail()
		40  }
		41  
		42  func NewPoolChain() PoolDequeue {
		43  	return new(poolChain)
		44  }
		45  
		46  func (c *poolChain) PushHead(val interface{}) bool {
		47  	c.pushHead(val)
		48  	return true
		49  }
		50  
		51  func (c *poolChain) PopHead() (interface{}, bool) {
		52  	return c.popHead()
		53  }
		54  
		55  func (c *poolChain) PopTail() (interface{}, bool) {
		56  	return c.popTail()
		57  }
		58
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