forked from TrueCloudLab/frostfs-node
114 lines
2.1 KiB
Go
114 lines
2.1 KiB
Go
package web
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import (
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"context"
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"net/http"
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"sync/atomic"
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"time"
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"github.com/spf13/viper"
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"go.uber.org/zap"
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)
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type (
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httpParams struct {
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Key string
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Viper *viper.Viper
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Logger *zap.Logger
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Handler http.Handler
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}
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httpServer struct {
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name string
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started *int32
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logger *zap.Logger
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shutdownTTL time.Duration
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server server
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}
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)
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func (h *httpServer) Start(ctx context.Context) {
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if h == nil {
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return
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}
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if !atomic.CompareAndSwapInt32(h.started, 0, 1) {
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h.logger.Info("http: already started",
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zap.String("server", h.name))
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return
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}
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go func() {
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if err := h.server.serve(ctx); err != nil {
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if err != http.ErrServerClosed {
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h.logger.Error("http: could not start server",
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zap.Error(err))
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}
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}
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}()
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}
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func (h *httpServer) Stop() {
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if h == nil {
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return
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}
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if !atomic.CompareAndSwapInt32(h.started, 1, 0) {
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h.logger.Info("http: already stopped",
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zap.String("server", h.name))
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return
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}
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ctx, cancel := context.WithTimeout(context.Background(), h.shutdownTTL)
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defer cancel()
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h.logger.Debug("http: try to stop server",
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zap.String("server", h.name))
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if err := h.server.shutdown(ctx); err != nil {
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h.logger.Error("http: could not stop server",
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zap.Error(err))
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}
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}
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const defaultShutdownTTL = 30 * time.Second
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func newHTTPServer(p httpParams) *httpServer {
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var (
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address string
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shutdown time.Duration
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)
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if address = p.Viper.GetString(p.Key + ".address"); address == "" {
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p.Logger.Info("Empty bind address, skip",
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zap.String("server", p.Key))
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return nil
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}
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if p.Handler == nil {
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p.Logger.Info("Empty handler, skip",
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zap.String("server", p.Key))
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return nil
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}
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p.Logger.Info("Create http.Server",
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zap.String("server", p.Key),
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zap.String("address", address))
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if shutdown = p.Viper.GetDuration(p.Key + ".shutdown_ttl"); shutdown <= 0 {
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shutdown = defaultShutdownTTL
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}
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return &httpServer{
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name: p.Key,
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started: new(int32),
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logger: p.Logger,
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shutdownTTL: shutdown,
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server: newServer(params{
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Address: address,
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Name: p.Key,
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Config: p.Viper,
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Logger: p.Logger,
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Handler: p.Handler,
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}),
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}
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}
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