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Index ¶
Constants ¶
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const INIT_FULL_POOL_SIZE = OptionInitFullPoolSize(256)
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const OPTIMAL_BLOCK_SIZE = 1 << 16
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const POOL_SIZE_PER_CPU = OptionPoolSizePerCPU(256)
Variables ¶
This section is empty.
Functions ¶
func SetCounterRegisterCallback ¶
func SetCounterRegisterCallback(callback CounterRegisterCallback)
Types ¶
type Counter ¶
type Counter struct {
Name string
ObjectSize uint64
PoolSizePerCPU uint32
InitFullPoolSize uint32
InUseObjects uint64 `statsd:"in_use_objects,gauge"`
InUseBytes uint64 `statsd:"in_use_bytes,gauge"`
// contains filtered or unexported fields
}
func (*Counter) GetCounter ¶
func (c *Counter) GetCounter() interface{}
type CounterRegisterCallback ¶
type CounterRegisterCallback func(*Counter)
此Callback可用于为Counter添加statsd监控
type LockFreePool ¶
type LockFreePool struct {
// contains filtered or unexported fields
}
sync.Pool对于每一个系统线程，能够无锁提取存放一个元素， 其余元素会通过锁追加到数组中。为了能够尽可能避免锁的使用， 我们需要利用好这一个元素的位置，所以在这个元素上放置slice指针 作为实际的pool使用，每次Get/Put时，先拿到slice，弹出/推入元素后再 将slice放回，以尽可能无锁分配释放资源
func NewLockFreePool ¶
func NewLockFreePool(alloc func() interface{}, options ...Option) *LockFreePool
注意OptionInitFullPoolSize不能大于OptionPoolSizePerCPU，且不能小于等于0
func (*LockFreePool) Get ¶
func (p *LockFreePool) Get() interface{}
func (*LockFreePool) Put ¶
func (p *LockFreePool) Put(x interface{})
type OptionCounterNameSuffix ¶
type OptionCounterNameSuffix string
type OptionInitFullPoolSize ¶
type OptionInitFullPoolSize int // 太大会导致Get操作卡顿，太小会导致创建过多的slice
type OptionPoolSizePerCPU ¶
type OptionPoolSizePerCPU int
type ReferenceCount ¶
type ReferenceCount int32
func (*ReferenceCount) AddReferenceCount ¶
func (r *ReferenceCount) AddReferenceCount()
func (*ReferenceCount) AddReferenceCountN ¶
func (r *ReferenceCount) AddReferenceCountN(n int32)
func (*ReferenceCount) GetReferenceCount ¶
func (r *ReferenceCount) GetReferenceCount() int32
func (*ReferenceCount) Reset ¶
func (r *ReferenceCount) Reset()
func (*ReferenceCount) SubReferenceCount ¶
func (r *ReferenceCount) SubReferenceCount() bool
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