mirror of
https://github.com/Rain-kl/OpenFlare.git
synced 2026-10-02 06:56:36 +08:00
ryan
f2ab94501c
- Relocated go.mod and go.sum into backend/ root directory - Stripped redundant backend/ segments from all Go imports (github.com/Rain-kl/Wavelet/...) - Unified Makefile, swagger, and build-test to execute in backend/ module context - Ensured 100% build-test, code-check, format, and swagger pass
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
// Copyright 2025 linux.do
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// Copyright 2026 Arctel.net
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// SPDX-License-Identifier: Apache-2.0
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// Package idgen 提供分布式 ID 生成器
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package idgen
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import (
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"fmt"
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"log"
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"github.com/Rain-kl/Wavelet/pkg/config"
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"github.com/bwmarrin/snowflake"
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)
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// 2025-12-01 00:00:00 UTC 的毫秒时间戳
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const epoch int64 = 1764547200000
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const maxNegativeIDRetries = 3
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var node *snowflake.Node
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func init() {
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snowflake.Epoch = epoch
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nodeID := config.Config.App.NodeID
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var err error
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node, err = snowflake.NewNode(nodeID)
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if err != nil {
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log.Fatalf("[Snowflake] init failed: %v\n", err)
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}
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log.Printf("[Snowflake] initialized with node ID: %d, epoch: 2025-12-01\n", nodeID)
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}
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// NextUint64ID 生成下一个分布式唯一 ID。
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// 理论上不应出现负值；若出现则最多重试 maxNegativeIDRetries 次，仍失败则 panic。
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func NextUint64ID() uint64 {
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for attempt := 1; attempt <= maxNegativeIDRetries; attempt++ {
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id := node.Generate().Int64()
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if id >= 0 {
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return uint64(id)
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}
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log.Printf("[Snowflake] generated negative ID: %d (attempt %d/%d)", id, attempt, maxNegativeIDRetries)
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}
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panic(fmt.Sprintf("[Snowflake] generated negative ID after %d attempts", maxNegativeIDRetries))
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}
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