mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
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// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build !windows
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package jaeger
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import (
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"net"
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"runtime"
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"syscall"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func assertSockBufferSize(t *testing.T, expectedBytes int, conn *net.UDPConn) bool {
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fd, err := conn.File()
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if !assert.NoError(t, err) {
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return false
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}
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bufferBytes, err := syscall.GetsockoptInt(int(fd.Fd()), syscall.SOL_SOCKET, syscall.SO_SNDBUF)
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if !assert.NoError(t, err) {
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return false
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}
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// The linux kernel doubles SO_SNDBUF value (to allow space for
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// bookkeeping overhead) when it is set using setsockopt(2), and this
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// doubled value is returned by getsockopt(2)
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// https://linux.die.net/man/7/socket
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if runtime.GOOS == "linux" {
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return assert.GreaterOrEqual(t, expectedBytes*2, bufferBytes)
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}
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return assert.Equal(t, expectedBytes, bufferBytes)
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}
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