forked from TrueCloudLab/frostfs-node
8d17dab86e
Rename `util/profiler` package to `httputil` and refactor it:
* simplify utility HTTP server;
* make more generic server's parameters in order to remove `viper.Viper`
dependency;
* use single constructor for creating the pprof and prometheus servers;
* replace `enabled` config value with empty-check of the network address.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
44 lines
964 B
Go
44 lines
964 B
Go
package httputil
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import (
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"context"
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"net/http"
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"github.com/pkg/errors"
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)
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// Serve listens and serves internal HTTP server.
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//
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// Returns any error returned by internal server
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// except http.ErrServerClosed.
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//
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// After Shutdown call, Serve has no effect and
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// returned error is always nil.
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func (x *Server) Serve() error {
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err := x.srv.ListenAndServe()
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// http.ErrServerClosed is returned on server shutdown
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// so we ignore this error.
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if err != nil && errors.Is(err, http.ErrServerClosed) {
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err = nil
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}
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return err
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}
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// Shutdown gracefully shuts down internal HTTP server.
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//
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// Shutdown is called with context which expires after
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// configured timeout.
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//
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// Once Shutdown has been called on a server, it may not be reused;
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// future calls to Serve method will have no effect.
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func (x *Server) Shutdown() error {
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ctx, cancel := context.WithTimeout(context.Background(), x.shutdownTimeout)
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err := x.srv.Shutdown(ctx)
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cancel()
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return err
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}
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