56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
package ext
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import (
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"context"
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"time"
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"github.com/status-im/status-go/db"
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)
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// ContextKey is a type used for keys in ext Context.
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type ContextKey struct {
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Name string
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}
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// NewContextKey returns new ContextKey instance.
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func NewContextKey(name string) ContextKey {
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return ContextKey{Name: name}
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}
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var (
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historyDBKey = NewContextKey("history_db")
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requestRegistryKey = NewContextKey("request_registry")
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timeKey = NewContextKey("time")
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)
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// NewContext creates Context with all required fields.
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func NewContext(ctx context.Context, source TimeSource, registry *RequestsRegistry, storage db.Storage) Context {
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ctx = context.WithValue(ctx, historyDBKey, db.NewHistoryStore(storage))
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ctx = context.WithValue(ctx, timeKey, source)
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ctx = context.WithValue(ctx, requestRegistryKey, registry)
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return Context{ctx}
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}
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// TimeSource is a type used for current time.
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type TimeSource func() time.Time
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// Context provides access to request-scoped values.
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type Context struct {
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context.Context
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}
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// HistoryStore returns db.HistoryStore instance associated with this request.
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func (c Context) HistoryStore() db.HistoryStore {
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return c.Value(historyDBKey).(db.HistoryStore)
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}
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// Time returns current time using time function associated with this request.
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func (c Context) Time() time.Time {
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return c.Value(timeKey).(TimeSource)()
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}
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// RequestRegistry returns RequestRegistry that tracks each request life-span.
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func (c Context) RequestRegistry() *RequestsRegistry {
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return c.Value(requestRegistryKey).(*RequestsRegistry)
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}
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