1 files changed, 36 insertions, 0 deletions
diff --git a/modules/graceful/context.go b/modules/graceful/context.go
new file mode 100644
index 00000000..c9c4ca4e
--- /dev/null
+++ b/modules/graceful/context.go
@@ -0,0 +1,36 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package graceful
+
+import (
+	"context"
+)
+
+// Shutdown procedure:
+// * cancel ShutdownContext: the registered context consumers have time to do their cleanup (they could use the hammer context)
+// * cancel HammerContext: the all context consumers have limited time to do their cleanup (wait for a few seconds)
+// * cancel TerminateContext: the registered context consumers have time to do their cleanup (but they shouldn't use shutdown/hammer context anymore)
+// * cancel manager context
+// If the shutdown is triggered again during the shutdown procedure, the hammer context will be canceled immediately to force to shut down.
+
+// ShutdownContext returns a context.Context that is Done at shutdown
+// Callers using this context should ensure that they are registered as a running server
+// in order that they are waited for.
+func (g *Manager) ShutdownContext() context.Context {
+	return g.shutdownCtx
+}
+
+// HammerContext returns a context.Context that is Done at hammer
+// Callers using this context should ensure that they are registered as a running server
+// in order that they are waited for.
+func (g *Manager) HammerContext() context.Context {
+	return g.hammerCtx
+}
+
+// TerminateContext returns a context.Context that is Done at terminate
+// Callers using this context should ensure that they are registered as a terminating server
+// in order that they are waited for.
+func (g *Manager) TerminateContext() context.Context {
+	return g.terminateCtx
+}