open-consul/agent/cache-types/options.go

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package cachetype
import (
"time"
"github.com/hashicorp/consul/agent/cache"
)
// RegisterOptionsBlockingRefresh can be embedded into a struct to implement
// part of the agent/cache.Type interface.
// When embedded into a struct it identifies the cache type as one which
// supports blocking, and uses refresh to keep the cache fresh.
type RegisterOptionsBlockingRefresh struct{}
func (r RegisterOptionsBlockingRefresh) RegisterOptions() cache.RegisterOptions {
return cache.RegisterOptions{
// Maintain a blocking query, retry dropped connections quickly
Refresh: true,
SupportsBlocking: true,
RefreshTimer: 0 * time.Second,
QueryTimeout: 10 * time.Minute,
}
}
type RegisterOptionsBlockingNoRefresh struct{}
func (r RegisterOptionsBlockingNoRefresh) RegisterOptions() cache.RegisterOptions {
return cache.RegisterOptions{
Refresh: false,
SupportsBlocking: true,
QueryTimeout: 10 * time.Minute,
}
}
// RegisterOptionsNoRefresh can be embedded into a struct to implement
// part of the agent/cache.Type interface.
// When embedded into a struct it identifies the cache type as one which
// does not support blocking, and should not be refreshed.
type RegisterOptionsNoRefresh struct{}
func (r RegisterOptionsNoRefresh) RegisterOptions() cache.RegisterOptions {
return cache.RegisterOptions{
Refresh: false,
SupportsBlocking: false,
}
}