35 lines
809 B
Go
35 lines
809 B
Go
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package config
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import (
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"sync"
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"sync/atomic"
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)
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var (
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extMutex sync.Mutex
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extensions atomic.Value
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)
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// Extension represents a named package extension with callbacks.
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type Extension struct {
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name string
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init func(c *Config) error
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clientValues func(c *Config, t ClientType) Values
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}
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// Register registers a new package extension.
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func Register(name string, initConfig func(c *Config) error, clientConfig func(c *Config, t ClientType) Values) {
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extMutex.Lock()
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n, _ := extensions.Load().([]Extension)
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extensions.Store(append(n, Extension{name, initConfig, clientConfig}))
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extMutex.Unlock()
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}
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// Extensions returns all registered package extensions.
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func Extensions() (ext []Extension) {
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extMutex.Lock()
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ext, _ = extensions.Load().([]Extension)
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extMutex.Unlock()
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return ext
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}
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