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docs(erlang): add dual-stack IPv4/IPv6 setup and usage guide

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Alice39s 2026-06-28 00:31:17 +09:00
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2 changed files with 65 additions and 10 deletions
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53
binding/erlang/README.md
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@ -15,10 +15,32 @@ The configurable parameters for this application are in `ip2region.app.src`, as
{poolargs, [ {poolargs, [
{size, 1}, %% Default number of worker processes {size, 1}, %% Default number of worker processes
{max_overflow, 5} %% Maximum number of worker processes {max_overflow, 5} %% Maximum number of worker processes
]},
{db, [
{ipv4, "ip2region.xdb"} %% Default IPv4 xdb file
]} ]}
]} ]}
``` ```
### Dual-stack configuration (IPv4 + IPv6)
To enable IPv6 queries, add the `ipv6` entry to the `db` list and place both xdb files under `priv/`:
```erlang
{env,[
{poolargs, [
{size, 1},
{max_overflow, 5}
]},
{db, [
{ipv4, "ip2region.xdb"},
{ipv6, "ip2region_v6.xdb"}
]}
]}
```
The `xdb:search/1` interface automatically detects IPv4 and IPv6 inputs and routes them to the correct worker pool.
### Compile ### Compile
``` ```
@ -37,17 +59,28 @@ Call the `xdb:search/1` interface in the Erlang shell to query IP address inform
``` ```
1> xdb:search("1.0.8.0"). 1> xdb:search("1.0.8.0").
[20013,22269,124,48,124,24191,19996,30465,124,24191,24030, [20013,22269,124,24191,19996,30465,124,24191,24030,24066,
24066,124,30005,20449] 124,20013,22269,30005,20449,124,67,78]
2> 2>
3> io:format("~ts~n", [xdb:search("1.0.8.0")]). 3> io:format("~ts~n", [xdb:search("1.0.8.0")]).
中国|0|广东省|广州市|电信 中国|广东省|广州市|中国电信|CN
io:format("~ts~n", [xdb:search(<<"1.0.8.0">>)]). 4> io:format("~ts~n", [xdb:search(<<"1.0.8.0">>)]).
中国|0|广东省|广州市|电信 中国|广东省|广州市|中国电信|CN
4> io:format("~ts~n", [xdb:search({1,0,8,0})]). 5> io:format("~ts~n", [xdb:search({1,0,8,0})]).
中国|0|广东省|广州市|电信 中国|广东省|广州市|中国电信|CN
6> io:format("~ts~n", [xdb:search(16779264)]). 6> io:format("~ts~n", [xdb:search(16779264)]).
中国|0|广东省|广州市|电信 中国|广东省|广州市|中国电信|CN
```
With dual-stack enabled, IPv6 addresses are supported in the same way:
```
1> io:format("~ts~n", [xdb:search("2001:4860:4860::8888")]).
...
2> io:format("~ts~n", [xdb:search(<<"2001:4860:4860::8888">>)]).
...
3> io:format("~ts~n", [xdb:search({8193,10304,10304,0,0,0,0,34952})]).
...
``` ```
### Usage ### Usage
@ -92,8 +125,8 @@ $ rebar3 eunit
XdbFile:/home/admin/erl-workspace/ip2region/binding/erlang/_build/test/lib/ip2region/priv/ip2region.xdb XdbFile:/home/admin/erl-workspace/ip2region/binding/erlang/_build/test/lib/ip2region/priv/ip2region.xdb
.... ....
Finished in 0.074 seconds Finished in 0.150 seconds
4 tests, 0 failures 34 tests, 0 failures
``` ```
### Benchmark ### Benchmark

22
binding/erlang/README_zh.md
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@ -12,10 +12,32 @@
{poolargs, [ {poolargs, [
{size, 1}, %% 工作进程默认数量 {size, 1}, %% 工作进程默认数量
{max_overflow, 5} %% 工作进程最大数量 {max_overflow, 5} %% 工作进程最大数量
]},
{db, [
{ipv4, "ip2region.xdb"} %% 默认 IPv4 xdb 文件
]} ]}
]} ]}
``` ```
### 双栈配置（IPv4 + IPv6）
如需启用 IPv6 查询，在 `db` 列表中加入 `ipv6` 项，并将两个 xdb 文件放到 `priv/` 目录下：
``` erlang
{env,[
{poolargs, [
{size, 1},
{max_overflow, 5}
]},
{db, [
{ipv4, "ip2region.xdb"},
{ipv6, "ip2region_v6.xdb"}
]}
]}
```
`xdb:search/1` 接口会自动识别 IPv4 与 IPv6 输入，并将其路由到对应的工作进程池。
### 编译 ### 编译
``` ```