1 files changed, 0 insertions, 359 deletions
diff --git a/src/dict2rest/vendor/github.com/stretchr/graceful/graceful.go b/src/dict2rest/vendor/github.com/stretchr/graceful/graceful.go
deleted file mode 100644
index d3a7175..0000000
--- a/src/dict2rest/vendor/github.com/stretchr/graceful/graceful.go
+++ /dev/null
@@ -1,359 +0,0 @@
-package graceful
-
-import (
-	"crypto/tls"
-	"log"
-	"net"
-	"net/http"
-	"os"
-	"os/signal"
-	"sync"
-	"syscall"
-	"time"
-
-	"golang.org/x/net/netutil"
-)
-
-// Server wraps an http.Server with graceful connection handling.
-// It may be used directly in the same way as http.Server, or may
-// be constructed with the global functions in this package.
-//
-// Example:
-//	srv := &graceful.Server{
-//		Timeout: 5 * time.Second,
-//		Server: &http.Server{Addr: ":1234", Handler: handler},
-//	}
-//	srv.ListenAndServe()
-type Server struct {
-	*http.Server
-
-	// Timeout is the duration to allow outstanding requests to survive
-	// before forcefully terminating them.
-	Timeout time.Duration
-
-	// Limit the number of outstanding requests
-	ListenLimit int
-
-	// ConnState specifies an optional callback function that is
-	// called when a client connection changes state. This is a proxy
-	// to the underlying http.Server's ConnState, and the original
-	// must not be set directly.
-	ConnState func(net.Conn, http.ConnState)
-
-	// BeforeShutdown is an optional callback function that is called
-	// before the listener is closed.
-	BeforeShutdown func()
-
-	// ShutdownInitiated is an optional callback function that is called
-	// when shutdown is initiated. It can be used to notify the client
-	// side of long lived connections (e.g. websockets) to reconnect.
-	ShutdownInitiated func()
-
-	// NoSignalHandling prevents graceful from automatically shutting down
-	// on SIGINT and SIGTERM. If set to true, you must shut down the server
-	// manually with Stop().
-	NoSignalHandling bool
-
-	// interrupt signals the listener to stop serving connections,
-	// and the server to shut down.
-	interrupt chan os.Signal
-
-	// stopLock is used to protect against concurrent calls to Stop
-	stopLock sync.Mutex
-
-	// stopChan is the channel on which callers may block while waiting for
-	// the server to stop.
-	stopChan chan struct{}
-
-	// chanLock is used to protect access to the various channel constructors.
-	chanLock sync.RWMutex
-
-	// connections holds all connections managed by graceful
-	connections map[net.Conn]struct{}
-}
-
-// Run serves the http.Handler with graceful shutdown enabled.
-//
-// timeout is the duration to wait until killing active requests and stopping the server.
-// If timeout is 0, the server never times out. It waits for all active requests to finish.
-func Run(addr string, timeout time.Duration, n http.Handler) {
-	srv := &Server{
-		Timeout: timeout,
-		Server:  &http.Server{Addr: addr, Handler: n},
-	}
-
-	if err := srv.ListenAndServe(); err != nil {
-		if opErr, ok := err.(*net.OpError); !ok || (ok && opErr.Op != "accept") {
-			logger := log.New(os.Stdout, "[graceful] ", 0)
-			logger.Fatal(err)
-		}
-	}
-
-}
-
-// ListenAndServe is equivalent to http.Server.ListenAndServe with graceful shutdown enabled.
-//
-// timeout is the duration to wait until killing active requests and stopping the server.
-// If timeout is 0, the server never times out. It waits for all active requests to finish.
-func ListenAndServe(server *http.Server, timeout time.Duration) error {
-	srv := &Server{Timeout: timeout, Server: server}
-	return srv.ListenAndServe()
-}
-
-// ListenAndServe is equivalent to http.Server.ListenAndServe with graceful shutdown enabled.
-func (srv *Server) ListenAndServe() error {
-	// Create the listener so we can control their lifetime
-	addr := srv.Addr
-	if addr == "" {
-		addr = ":http"
-	}
-	l, err := net.Listen("tcp", addr)
-	if err != nil {
-		return err
-	}
-
-	return srv.Serve(l)
-}
-
-// ListenAndServeTLS is equivalent to http.Server.ListenAndServeTLS with graceful shutdown enabled.
-//
-// timeout is the duration to wait until killing active requests and stopping the server.
-// If timeout is 0, the server never times out. It waits for all active requests to finish.
-func ListenAndServeTLS(server *http.Server, certFile, keyFile string, timeout time.Duration) error {
-	srv := &Server{Timeout: timeout, Server: server}
-	return srv.ListenAndServeTLS(certFile, keyFile)
-}
-
-// ListenTLS is a convenience method that creates an https listener using the
-// provided cert and key files. Use this method if you need access to the
-// listener object directly. When ready, pass it to the Serve method.
-func (srv *Server) ListenTLS(certFile, keyFile string) (net.Listener, error) {
-	// Create the listener ourselves so we can control its lifetime
-	addr := srv.Addr
-	if addr == "" {
-		addr = ":https"
-	}
-
-	config := &tls.Config{}
-	if srv.TLSConfig != nil {
-		*config = *srv.TLSConfig
-	}
-	if config.NextProtos == nil {
-		config.NextProtos = []string{"http/1.1"}
-	}
-
-	var err error
-	config.Certificates = make([]tls.Certificate, 1)
-	config.Certificates[0], err = tls.LoadX509KeyPair(certFile, keyFile)
-	if err != nil {
-		return nil, err
-	}
-
-	conn, err := net.Listen("tcp", addr)
-	if err != nil {
-		return nil, err
-	}
-
-	tlsListener := tls.NewListener(conn, config)
-	return tlsListener, nil
-}
-
-// ListenAndServeTLS is equivalent to http.Server.ListenAndServeTLS with graceful shutdown enabled.
-func (srv *Server) ListenAndServeTLS(certFile, keyFile string) error {
-	l, err := srv.ListenTLS(certFile, keyFile)
-	if err != nil {
-		return err
-	}
-
-	return srv.Serve(l)
-}
-
-// ListenAndServeTLSConfig can be used with an existing TLS config and is equivalent to
-// http.Server.ListenAndServeTLS with graceful shutdown enabled,
-func (srv *Server) ListenAndServeTLSConfig(config *tls.Config) error {
-	addr := srv.Addr
-	if addr == "" {
-		addr = ":https"
-	}
-
-	conn, err := net.Listen("tcp", addr)
-	if err != nil {
-		return err
-	}
-
-	tlsListener := tls.NewListener(conn, config)
-	return srv.Serve(tlsListener)
-}
-
-// Serve is equivalent to http.Server.Serve with graceful shutdown enabled.
-//
-// timeout is the duration to wait until killing active requests and stopping the server.
-// If timeout is 0, the server never times out. It waits for all active requests to finish.
-func Serve(server *http.Server, l net.Listener, timeout time.Duration) error {
-	srv := &Server{Timeout: timeout, Server: server}
-	return srv.Serve(l)
-}
-
-// Serve is equivalent to http.Server.Serve with graceful shutdown enabled.
-func (srv *Server) Serve(listener net.Listener) error {
-
-	if srv.ListenLimit != 0 {
-		listener = netutil.LimitListener(listener, srv.ListenLimit)
-	}
-
-	// Track connection state
-	add := make(chan net.Conn)
-	remove := make(chan net.Conn)
-
-	srv.Server.ConnState = func(conn net.Conn, state http.ConnState) {
-		switch state {
-		case http.StateNew:
-			add <- conn
-		case http.StateClosed, http.StateHijacked:
-			remove <- conn
-		}
-		if srv.ConnState != nil {
-			srv.ConnState(conn, state)
-		}
-	}
-
-	// Manage open connections
-	shutdown := make(chan chan struct{})
-	kill := make(chan struct{})
-	go srv.manageConnections(add, remove, shutdown, kill)
-
-	interrupt := srv.interruptChan()
-	// Set up the interrupt handler
-	if !srv.NoSignalHandling {
-		signal.Notify(interrupt, syscall.SIGINT, syscall.SIGTERM)
-	}
-	quitting := make(chan struct{})
-	go srv.handleInterrupt(interrupt, quitting, listener)
-
-	// Serve with graceful listener.
-	// Execution blocks here until listener.Close() is called, above.
-	err := srv.Server.Serve(listener)
-	if err != nil {
-		// If the underlying listening is closed, Serve returns an error
-		// complaining about listening on a closed socket. This is expected, so
-		// let's ignore the error if we are the ones who explicitly closed the
-		// socket.
-		select {
-		case <-quitting:
-			err = nil
-		default:
-		}
-	}
-
-	srv.shutdown(shutdown, kill)
-
-	return err
-}
-
-// Stop instructs the type to halt operations and close
-// the stop channel when it is finished.
-//
-// timeout is grace period for which to wait before shutting
-// down the server. The timeout value passed here will override the
-// timeout given when constructing the server, as this is an explicit
-// command to stop the server.
-func (srv *Server) Stop(timeout time.Duration) {
-	srv.stopLock.Lock()
-	srv.Timeout = timeout
-	interrupt := srv.interruptChan()
-	interrupt <- syscall.SIGINT
-	srv.stopLock.Unlock()
-}
-
-// StopChan gets the stop channel which will block until
-// stopping has completed, at which point it is closed.
-// Callers should never close the stop channel.
-func (srv *Server) StopChan() <-chan struct{} {
-	srv.chanLock.Lock()
-	if srv.stopChan == nil {
-		srv.stopChan = make(chan struct{})
-	}
-	srv.chanLock.Unlock()
-	return srv.stopChan
-}
-
-func (srv *Server) manageConnections(add, remove chan net.Conn, shutdown chan chan struct{}, kill chan struct{}) {
-	var done chan struct{}
-	srv.connections = map[net.Conn]struct{}{}
-	for {
-		select {
-		case conn := <-add:
-			srv.connections[conn] = struct{}{}
-		case conn := <-remove:
-			delete(srv.connections, conn)
-			if done != nil && len(srv.connections) == 0 {
-				done <- struct{}{}
-				return
-			}
-		case done = <-shutdown:
-			if len(srv.connections) == 0 {
-				done <- struct{}{}
-				return
-			}
-		case <-kill:
-			for k := range srv.connections {
-				_ = k.Close() // nothing to do here if it errors
-			}
-			return
-		}
-	}
-}
-
-func (srv *Server) interruptChan() chan os.Signal {
-	srv.chanLock.Lock()
-	if srv.interrupt == nil {
-		srv.interrupt = make(chan os.Signal, 1)
-	}
-	srv.chanLock.Unlock()
-
-	return srv.interrupt
-}
-
-func (srv *Server) handleInterrupt(interrupt chan os.Signal, quitting chan struct{}, listener net.Listener) {
-	<-interrupt
-
-	if srv.BeforeShutdown != nil {
-		srv.BeforeShutdown()
-	}
-
-	close(quitting)
-	srv.SetKeepAlivesEnabled(false)
-	_ = listener.Close() // we are shutting down anyway. ignore error.
-
-	if srv.ShutdownInitiated != nil {
-		srv.ShutdownInitiated()
-	}
-
-	srv.stopLock.Lock()
-	signal.Stop(interrupt)
-	close(interrupt)
-	srv.interrupt = nil
-	srv.stopLock.Unlock()
-}
-
-func (srv *Server) shutdown(shutdown chan chan struct{}, kill chan struct{}) {
-	// Request done notification
-	done := make(chan struct{})
-	shutdown <- done
-
-	if srv.Timeout > 0 {
-		select {
-		case <-done:
-		case <-time.After(srv.Timeout):
-			close(kill)
-		}
-	} else {
-		<-done
-	}
-	// Close the stopChan to wake up any blocked goroutines.
-	srv.chanLock.Lock()
-	if srv.stopChan != nil {
-		close(srv.stopChan)
-	}
-	srv.chanLock.Unlock()
-}