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https://github.com/d0zingcat/gocryptotrader.git
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e823f9edd8
* improv. timed mutex * Add all protection back in and jankyness because races. :'( * Add intial benchmarkeroos * Add master benchmarks * goodness me * what? * what again? * glorious: nits * just a swaperino instead * clean up package nonce so that we only need to aquire mutex once * unlock before checking master * commentary * wha * more comment * ch comment * nonce: Allow for broad customisation externally with a ~2ns overhead * glorious: nits maybe works? --------- Co-authored-by: Ryan O'Hara-Reid <ryan.oharareid@thrasher.io>
44 lines
884 B
Go
44 lines
884 B
Go
package nonce
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import (
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"strconv"
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"sync"
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"time"
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)
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// UnixNano and Unix are default nonce setters
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var (
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UnixNano Setter = func() int64 { return time.Now().UnixNano() }
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Unix Setter = func() int64 { return time.Now().Unix() }
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)
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// Setter is a function that returns a nonce start value.
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type Setter func() int64
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// Nonce struct holds the nonce value
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type Nonce struct {
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n int64
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m sync.Mutex
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}
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// GetAndIncrement returns the current nonce value and increments it. If value
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// is 0, it will set the value to the current time.
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func (n *Nonce) GetAndIncrement(set Setter) Value {
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n.m.Lock()
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defer n.m.Unlock()
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if n.n == 0 {
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n.n = set()
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}
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val := n.n
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n.n++
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return Value(val)
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}
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// Value is a return type for GetValue
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type Value int64
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// String is a Value method that changes format to a string
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func (v Value) String() string {
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return strconv.FormatInt(int64(v), 10)
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}
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