The go-snowflake from godruoyi

go-snowflake's Introduction

Hello there 👋

Hi there, I work remotely and enjoy using open-source and efficient tools.

🔭 Interested in full stack. Focus on backend.
🌱 Currently learning Golang and Rust.
💻 With 6 years of development working experience.
👒 About me more.

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go-snowflake's Issues

Try to got unique id concurrently

package tests

import (
	"fmt"
	mapset "github.com/deckarep/golang-set/v2"
	"testing"
)

func TestCache(t *testing.T) {
	ids := mapset.NewSet[uint64]()
	for i := 1; i <= 10000; i++ {
		go func() {
			id, _ := snowflake.NextID()
			if ids.Contains(id) {
				fmt.Printf("repeat id %d", id)
			}

			ids.Add(id)
		}()

	}

	fmt.Printf("%v \n", ids.Cardinality())

}

try to concurrently to got unique id by such example. Always got such like

Do you have some suggestions try to make this test case got

android-armv7a build issue

Building on a 32 bit platform results in the following error

/go/pkg/mod/github.com/godruoyi/[email protected]/snowflake.go:65:20: MaxTimestamp (untyped int constant 2199023255551) overflows int

I believe the problem is related with the definition of MaxTimestamp:
MaxTimestamp = 1<<TimestampLength - 1

On a 32-bit platform, int is 32bit, which would not fit the above expression.
I believe some variables should be redefined with int64 instead than int, so to assure cross-compilation

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