move p2 impl to sys/p2

Author: yoshuawuyts

Cargo.toml

@@ -16,10 +16,14 @@ rust-version.workspace = true
 default = ["json"]
 json = ["dep:serde", "dep:serde_json"]
 
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(feature, values("wasip3"))'] }
+
 [dependencies]
 anyhow.workspace = true
 async-task.workspace = true
 bytes.workspace = true
+cfg-if.workspace = true
 futures-lite.workspace = true
 http-body-util.workspace = true
 http-body.workspace = true
@@ -72,6 +76,7 @@ async-task = "4.7"
 axum = { version = "0.8.6", default-features = false }
 bytes = "1.10.1"
 cargo_metadata = "0.22"
+cfg-if = "1"
 clap = { version = "4.5.26", features = ["derive"] }
 futures-core = "0.3.19"
 futures-lite = "1.12.0"