blob: 96a3e8b3ee91604d5f341754b4cefb67d2207cd9 [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package test
import (
"fmt"
"math/rand"
"org/apache/htrace/common"
)
func NonZeroRand64(rnd *rand.Rand) int64 {
for {
r := rnd.Int63()
if r == 0 {
continue
}
if rnd.Intn(1) != 0 {
return -r
}
return r
}
}
func NonZeroRand32(rnd *rand.Rand) int32 {
for {
r := rnd.Int31()
if r == 0 {
continue
}
if rnd.Intn(1) != 0 {
return -r
}
return r
}
}
// Create a random span.
func NewRandomSpan(rnd *rand.Rand, potentialParents []*common.Span) *common.Span {
parents := []common.SpanId{}
if potentialParents != nil {
parentIdx := rnd.Intn(len(potentialParents) + 1)
if parentIdx < len(potentialParents) {
parents = []common.SpanId{potentialParents[parentIdx].Id}
}
}
return &common.Span{Id: common.SpanId(NonZeroRand64(rnd)),
SpanData: common.SpanData{
Begin: NonZeroRand64(rnd),
End: NonZeroRand64(rnd),
Description: "getFileDescriptors",
TraceId: common.SpanId(NonZeroRand64(rnd)),
Parents: parents,
TracerId: fmt.Sprintf("tracer%d", NonZeroRand32(rnd)),
}}
}