mirror of
https://github.com/netfun2000/ip2region.git
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138 lines
4.3 KiB
Markdown
138 lines
4.3 KiB
Markdown
# `ip2region xdb rust` 查询客户端实现
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# 使用方式
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### 缓存整个 `xdb` 数据
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预先加载整个` ip2region.xdb` 到内存，完全基于内存查询，该方式线程安全，采用`once_cell::sync::OnceCell`，只会加载一次数据，多线程安全，可以自由使用`tokio`异步运行时或者标准库的多线程`std::thread`
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配置`Cargo.toml`如下
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```toml
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[dependencies]
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search = { git = "https://github.com/lionsoul2014/ip2region.git", branch = "master" }
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# 如果要在异步环境下使用，需要加上如下依赖
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tokio = { version = "1", features = ["full"]}
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```
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编写`main.rs`
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**需要使用`XDB_FILEPATH`指定`ip2region.xdb`文件的路径**，该参数可以使用相对路径或者绝对路径，如果使用相对路径报错，请修改为绝对路径
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```rust
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use std::env;
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#[tokio::main]
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async fn main() {
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env::set_var(
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"XDB_FILEPATH",
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"../data/ip2region.xdb",
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);
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// search_by_ip的参数可以是u32类型，字符串IP类型，字符串数字类型
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for i in 1..5 {
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tokio::spawn(async move {
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// u32
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println!("{:?}", search::search_by_ip(i));
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});
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}
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// ip str
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println!("{:?}", search::search_by_ip("1.0.1.0"));
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// u32 str
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let ip_u32 = 1 << 24 | 1 << 8;
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println!("{:?}", search::search_by_ip(ip_u32.to_string().as_str()));
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}
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```
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进行测试
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```shell
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$ cargo run
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init xdb searcher at ../data/ip2region.xdb
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Ok("中国|0|福建省|福州市|电信")
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Ok("中国|0|福建省|福州市|电信")
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Ok("0|0|0|内网IP|内网IP")
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Ok("0|0|0|内网IP|内网IP")
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Ok("0|0|0|内网IP|内网IP")
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Ok("0|0|0|内网IP|内网IP")
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```
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# 编译程序
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通过如下方式编译得到 `ip2region` 可执行程序
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切换到 `rust binding` 根目录，执行如下命令
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```bash
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➜ cargo build -r
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```
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生成的二进制文件会在`./target/release/ip2region`位置
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# 查询测试
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通过 `./target/release/ip2region` 命令来测试查询
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```
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➜ ./target/release/ip2region --help
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you can set environment XDB_FILEPATH=../data/ip2region or just use --xdb in command
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Usage: ip2region [OPTIONS]
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Options:
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--xdb <xdb>
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the xdb filepath, you can set this field like ../data/ip2region.xdb
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-h, --help
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Print help information (use `-h` for a summary)
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-V, --version
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Print version information
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```
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命令行指定参数进行查询测试，输入 `ip` 地址或者一个`u32`类型的数字进行查询即可，输入 `quit` 退出测试程序
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```bash
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➜ ./target/release/ip2region --xdb=../../data/ip2region.xdb
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init xdb searcher at ../../data/ip2region.xdb
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ip2region xdb searcher test program, type `quit` to exit
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ip2region>> 1.1.1.1
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region: Ok("澳大利亚|0|0|0|0"), took: 4.227µs
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ip2region>> 2.2.2.2
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region: Ok("法国|0|0|0|橘子电信"), took: 4.495µs
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ip2region>> 222222222
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region: Ok("美国|0|康涅狄格|0|0"), took: 4.048µs
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```
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或者使用环境变量
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```shell
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➜ XDB_FILEPATH=../../data/ip2region.xdb ./target/release/ip2region
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init xdb searcher at ../../data/ip2region.xdb
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ip2region xdb searcher test program, type `quit` to exit
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ip2region>> 2.2.2.2
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region: Ok("法国|0|0|0|橘子电信"), took: 4.458µs
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ip2region>> 4.4.4.5
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region: Ok("美国|0|0|0|Level3"), took: 4.847µs
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```
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# 单元测试
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```shell
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➜ XDB_FILEPATH=../../../data/ip2region.xdb cargo test
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```
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# `bench` 测试
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通过 `cargo bench` 命令来进行自动 `bench` 测试，一方面确保程序和 `xdb` 文件都没有错误，另一方面通过大量的查询得到平均查询性能
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在不同机器上面的测试性能时间是不一样的，如下是在机器`CPU`是`Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz`，内存`DDR4 32G`下面的测试结果
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```shell
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➜ XDB_FILEPATH=../../../data/ip2region.xdb cargo bench
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// --snip--
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Running benches/search.rs (target/release/deps/search-9614305a566885c4)
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Benchmarking ip_search_bench: Warming up for 3.0000 sinit xdb searcher at ../../../data/ip2region.xdb
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ip_search_bench time: [120.84 ns 122.91 ns 125.20 ns]
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change: [-3.3346% -1.2786% +0.8027%] (p = 0.23 > 0.05)
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No change in performance detected.
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Found 6 outliers among 100 measurements (6.00%)
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6 (6.00%) high mild
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```
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可以看到上面的`ip_search_bench time`一行的参数表示是左右值分别显示置信区间的下限和上限，中间值显示 `Criterion.rs` 对基准程序每次迭代所用时间的最佳估计
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