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manager.go
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/
manager.go
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package plugin
import (
"fmt"
"sync"
)
type manager struct {
sync.Mutex
plugins []Plugin
registered map[string]bool
}
var (
// global plugin manager
defaultManager = newManager()
)
func newManager() *manager {
return &manager{
registered: make(map[string]bool),
}
}
func (m *manager) Plugins() []Plugin {
m.Lock()
defer m.Unlock()
return m.plugins
}
func (m *manager) Register(plugin Plugin) error {
m.Lock()
defer m.Unlock()
name := plugin.String()
if m.registered[name] {
return fmt.Errorf("Plugin with name %s already registered", name)
}
m.registered[name] = true
m.plugins = append(m.plugins, plugin)
return nil
}
func (m *manager) isRegistered(plugin Plugin) bool {
m.Lock()
defer m.Unlock()
return m.registered[plugin.String()]
}