Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
2.1k views
in Technique[技术] by (71.8m points)

rust - Is it possible to populate a large set at compile time?

We have a 'delete all my data' feature. I'd like to delete a set of IPs from many many web log files.

Currently at runtime I open a CSV with the IP addresses to delete, turn it into a set, scan through files, and execute the delete logic if log IPs match.

Is there any way I can load the CSV and turn it into a set at compile time? We're trying to migrate things to AWS lambda, and it's nifty to have only a single static binary to deploy with no dependencies.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

The Rust-PHF crate provides compile-time data structures, including (ordered) maps and sets.

Unfortunately, to date, it does not support initialization of a set of std::net::IpAddr, but can be used with static strings:

static IP_SET: phf::Set<&'static str> = phf_set! {
    "127.0.0.1",
    "::1",
};

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...