Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / github.com / btcsuite / btcd / signal.go

diff --git a/vendor/github.com/btcsuite/btcd/signal.go b/vendor/github.com/btcsuite/btcd/signal.go
deleted file mode 100644 (file)
index 5e60783..0000000
--- a/vendor/github.com/btcsuite/btcd/signal.go
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2013-2016 The btcsuite developers
-// Use of this source code is governed by an ISC
-// license that can be found in the LICENSE file.
-
-package main
-
-import (
-       "os"
-       "os/signal"
-)
-
-// shutdownRequestChannel is used to initiate shutdown from one of the
-// subsystems using the same code paths as when an interrupt signal is received.
-var shutdownRequestChannel = make(chan struct{})
-
-// interruptSignals defines the default signals to catch in order to do a proper
-// shutdown.  This may be modified during init depending on the platform.
-var interruptSignals = []os.Signal{os.Interrupt}
-
-// interruptListener listens for OS Signals such as SIGINT (Ctrl+C) and shutdown
-// requests from shutdownRequestChannel.  It returns a channel that is closed
-// when either signal is received.
-func interruptListener() <-chan struct{} {
-       c := make(chan struct{})
-       go func() {
-               interruptChannel := make(chan os.Signal, 1)
-               signal.Notify(interruptChannel, interruptSignals...)
-
-               // Listen for initial shutdown signal and close the returned
-               // channel to notify the caller.
-               select {
-               case sig := <-interruptChannel:
-                       btcdLog.Infof("Received signal (%s).  Shutting down...",
-                               sig)
-
-               case <-shutdownRequestChannel:
-                       btcdLog.Info("Shutdown requested.  Shutting down...")
-               }
-               close(c)
-
-               // Listen for repeated signals and display a message so the user
-               // knows the shutdown is in progress and the process is not
-               // hung.
-               for {
-                       select {
-                       case sig := <-interruptChannel:
-                               btcdLog.Infof("Received signal (%s).  Already "+
-                                       "shutting down...", sig)
-
-                       case <-shutdownRequestChannel:
-                               btcdLog.Info("Shutdown requested.  Already " +
-                                       "shutting down...")
-                       }
-               }
-       }()
-
-       return c
-}
-
-// interruptRequested returns true when the channel returned by
-// interruptListener was closed.  This simplifies early shutdown slightly since
-// the caller can just use an if statement instead of a select.
-func interruptRequested(interrupted <-chan struct{}) bool {
-       select {
-       case <-interrupted:
-               return true
-       default:
-       }
-
-       return false
-}