Finishing basic implementation
This commit is contained in:
commit
43278f09c8
2
.gitignore
vendored
Normal file
2
.gitignore
vendored
Normal file
@ -0,0 +1,2 @@
|
||||
/target
|
||||
config.json
|
||||
468
Cargo.lock
generated
Normal file
468
Cargo.lock
generated
Normal file
@ -0,0 +1,468 @@
|
||||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
|
||||
|
||||
[[package]]
|
||||
name = "bitflags"
|
||||
version = "1.3.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
|
||||
|
||||
[[package]]
|
||||
name = "bytes"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "1.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
|
||||
|
||||
[[package]]
|
||||
name = "futures"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f73fe65f54d1e12b726f517d3e2135ca3125a437b6d998caf1962961f7172d9e"
|
||||
dependencies = [
|
||||
"futures-channel",
|
||||
"futures-core",
|
||||
"futures-executor",
|
||||
"futures-io",
|
||||
"futures-sink",
|
||||
"futures-task",
|
||||
"futures-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "futures-channel"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c3083ce4b914124575708913bca19bfe887522d6e2e6d0952943f5eac4a74010"
|
||||
dependencies = [
|
||||
"futures-core",
|
||||
"futures-sink",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "futures-core"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
|
||||
|
||||
[[package]]
|
||||
name = "futures-executor"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9420b90cfa29e327d0429f19be13e7ddb68fa1cccb09d65e5706b8c7a749b8a6"
|
||||
dependencies = [
|
||||
"futures-core",
|
||||
"futures-task",
|
||||
"futures-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "futures-io"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
|
||||
|
||||
[[package]]
|
||||
name = "futures-macro"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "futures-sink"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
|
||||
|
||||
[[package]]
|
||||
name = "futures-task"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "57c66a976bf5909d801bbef33416c41372779507e7a6b3a5e25e4749c58f776a"
|
||||
|
||||
[[package]]
|
||||
name = "futures-util"
|
||||
version = "0.3.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d8b7abd5d659d9b90c8cba917f6ec750a74e2dc23902ef9cd4cc8c8b22e6036a"
|
||||
dependencies = [
|
||||
"futures-channel",
|
||||
"futures-core",
|
||||
"futures-io",
|
||||
"futures-macro",
|
||||
"futures-sink",
|
||||
"futures-task",
|
||||
"memchr",
|
||||
"pin-project-lite",
|
||||
"pin-utils",
|
||||
"slab",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "hermit-abi"
|
||||
version = "0.1.19"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
|
||||
dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "itoa"
|
||||
version = "1.0.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1aab8fc367588b89dcee83ab0fd66b72b50b72fa1904d7095045ace2b0c81c35"
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.121"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "efaa7b300f3b5fe8eb6bf21ce3895e1751d9665086af2d64b42f19701015ff4f"
|
||||
|
||||
[[package]]
|
||||
name = "lock_api"
|
||||
version = "0.4.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "88943dd7ef4a2e5a4bfa2753aaab3013e34ce2533d1996fb18ef591e315e2b3b"
|
||||
dependencies = [
|
||||
"scopeguard",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "log"
|
||||
version = "0.4.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "memchr"
|
||||
version = "2.4.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
|
||||
|
||||
[[package]]
|
||||
name = "mio"
|
||||
version = "0.8.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "52da4364ffb0e4fe33a9841a98a3f3014fb964045ce4f7a45a398243c8d6b0c9"
|
||||
dependencies = [
|
||||
"libc",
|
||||
"log",
|
||||
"miow",
|
||||
"ntapi",
|
||||
"wasi",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "miow"
|
||||
version = "0.3.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"
|
||||
dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "ntapi"
|
||||
version = "0.3.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c28774a7fd2fbb4f0babd8237ce554b73af68021b5f695a3cebd6c59bac0980f"
|
||||
dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "num_cpus"
|
||||
version = "1.13.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
|
||||
dependencies = [
|
||||
"hermit-abi",
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "once_cell"
|
||||
version = "1.10.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
|
||||
|
||||
[[package]]
|
||||
name = "parking_lot"
|
||||
version = "0.12.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "87f5ec2493a61ac0506c0f4199f99070cbe83857b0337006a30f3e6719b8ef58"
|
||||
dependencies = [
|
||||
"lock_api",
|
||||
"parking_lot_core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "parking_lot_core"
|
||||
version = "0.9.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "28141e0cc4143da2443301914478dc976a61ffdb3f043058310c70df2fed8954"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"libc",
|
||||
"redox_syscall",
|
||||
"smallvec",
|
||||
"windows-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "pin-project-lite"
|
||||
version = "0.2.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e280fbe77cc62c91527259e9442153f4688736748d24660126286329742b4c6c"
|
||||
|
||||
[[package]]
|
||||
name = "pin-utils"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
|
||||
|
||||
[[package]]
|
||||
name = "proc-macro2"
|
||||
version = "1.0.36"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c7342d5883fbccae1cc37a2353b09c87c9b0f3afd73f5fb9bba687a1f733b029"
|
||||
dependencies = [
|
||||
"unicode-xid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quote"
|
||||
version = "1.0.16"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b4af2ec4714533fcdf07e886f17025ace8b997b9ce51204ee69b6da831c3da57"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "redox_syscall"
|
||||
version = "0.2.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8380fe0152551244f0747b1bf41737e0f8a74f97a14ccefd1148187271634f3c"
|
||||
dependencies = [
|
||||
"bitflags",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rustocat"
|
||||
version = "0.0.1"
|
||||
dependencies = [
|
||||
"futures",
|
||||
"serde",
|
||||
"serde_json",
|
||||
"tokio",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "ryu"
|
||||
version = "1.0.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "73b4b750c782965c211b42f022f59af1fbceabdd026623714f104152f1ec149f"
|
||||
|
||||
[[package]]
|
||||
name = "scopeguard"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
|
||||
|
||||
[[package]]
|
||||
name = "serde"
|
||||
version = "1.0.136"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ce31e24b01e1e524df96f1c2fdd054405f8d7376249a5110886fb4b658484789"
|
||||
dependencies = [
|
||||
"serde_derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_derive"
|
||||
version = "1.0.136"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "08597e7152fcd306f41838ed3e37be9eaeed2b61c42e2117266a554fab4662f9"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_json"
|
||||
version = "1.0.79"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8e8d9fa5c3b304765ce1fd9c4c8a3de2c8db365a5b91be52f186efc675681d95"
|
||||
dependencies = [
|
||||
"itoa",
|
||||
"ryu",
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "signal-hook-registry"
|
||||
version = "1.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e51e73328dc4ac0c7ccbda3a494dfa03df1de2f46018127f60c693f2648455b0"
|
||||
dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "slab"
|
||||
version = "0.4.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9def91fd1e018fe007022791f865d0ccc9b3a0d5001e01aabb8b40e46000afb5"
|
||||
|
||||
[[package]]
|
||||
name = "smallvec"
|
||||
version = "1.8.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
|
||||
|
||||
[[package]]
|
||||
name = "socket2"
|
||||
version = "0.4.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "66d72b759436ae32898a2af0a14218dbf55efde3feeb170eb623637db85ee1e0"
|
||||
dependencies = [
|
||||
"libc",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.89"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ea297be220d52398dcc07ce15a209fce436d361735ac1db700cab3b6cdfb9f54"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-xid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tokio"
|
||||
version = "1.17.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2af73ac49756f3f7c01172e34a23e5d0216f6c32333757c2c61feb2bbff5a5ee"
|
||||
dependencies = [
|
||||
"bytes",
|
||||
"libc",
|
||||
"memchr",
|
||||
"mio",
|
||||
"num_cpus",
|
||||
"once_cell",
|
||||
"parking_lot",
|
||||
"pin-project-lite",
|
||||
"signal-hook-registry",
|
||||
"socket2",
|
||||
"tokio-macros",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tokio-macros"
|
||||
version = "1.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b557f72f448c511a979e2564e55d74e6c4432fc96ff4f6241bc6bded342643b7"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-xid"
|
||||
version = "0.2.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.11.0+wasi-snapshot-preview1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu",
|
||||
"winapi-x86_64-pc-windows-gnu",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.32.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3df6e476185f92a12c072be4a189a0210dcdcf512a1891d6dff9edb874deadc6"
|
||||
dependencies = [
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_msvc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.32.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d8e92753b1c443191654ec532f14c199742964a061be25d77d7a96f09db20bf5"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.32.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6a711c68811799e017b6038e0922cb27a5e2f43a2ddb609fe0b6f3eeda9de615"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.32.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "146c11bb1a02615db74680b32a68e2d61f553cc24c4eb5b4ca10311740e44172"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.32.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c912b12f7454c6620635bbff3450962753834be2a594819bd5e945af18ec64bc"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.32.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "504a2476202769977a040c6364301a3f65d0cc9e3fb08600b2bda150a0488316"
|
||||
22
Cargo.toml
Normal file
22
Cargo.toml
Normal file
@ -0,0 +1,22 @@
|
||||
[package]
|
||||
name = "rustocat"
|
||||
version = "0.0.1"
|
||||
edition = "2021"
|
||||
description = "Socat in rust with many less features and a configuration file"
|
||||
license = "ISC"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
tokio = { version = "1.17.0", features = ["full"] }
|
||||
futures = "0.3.21"
|
||||
serde = { version = "1.0.136", features = ["derive"] }
|
||||
serde_json = "1.0.79"
|
||||
|
||||
|
||||
[profile.release]
|
||||
opt-level = 'z' # Optimize for size.
|
||||
lto = true # Enable Link Time Optimization
|
||||
codegen-units = 1 # Reduce number of codegen units to increase optimizations.
|
||||
panic = 'abort' # Abort on panic
|
||||
strip = true # Strip symbols from binary*
|
||||
7
src/listener.rs
Normal file
7
src/listener.rs
Normal file
@ -0,0 +1,7 @@
|
||||
use crate::shutdown::Shutdown;
|
||||
|
||||
pub(crate) struct Listener {
|
||||
pub(crate) shutdown: Shutdown,
|
||||
pub(crate) source: String,
|
||||
pub(crate) target: String,
|
||||
}
|
||||
47
src/main.rs
Normal file
47
src/main.rs
Normal file
@ -0,0 +1,47 @@
|
||||
mod listener;
|
||||
mod shutdown;
|
||||
mod tcp;
|
||||
|
||||
use serde::Deserialize;
|
||||
use std::fs::File;
|
||||
use std::path::Path;
|
||||
use tokio::sync::broadcast;
|
||||
|
||||
#[derive(Debug, Deserialize)]
|
||||
struct Target {
|
||||
source: String,
|
||||
target: String,
|
||||
}
|
||||
|
||||
#[derive(Debug, Deserialize)]
|
||||
struct Config {
|
||||
tcp: Vec<Target>,
|
||||
// udp: Vec<Target>,
|
||||
}
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() {
|
||||
let json_file_path = Path::new("./config.json");
|
||||
let file = File::open(json_file_path).expect("file not found");
|
||||
|
||||
let (notify_shutdown, _) = broadcast::channel(1);
|
||||
|
||||
let config: Config = serde_json::from_reader(file).expect("json parse error");
|
||||
for target in config.tcp {
|
||||
let listener = listener::Listener {
|
||||
shutdown: shutdown::Shutdown::new(notify_shutdown.subscribe()),
|
||||
source: target.source,
|
||||
target: target.target,
|
||||
};
|
||||
tokio::spawn(async move {
|
||||
if let Err(err) = tcp::start_tcp_listener(listener).await {
|
||||
println!("listener error: {}", err);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
// _ = notify_shutdown.send(());
|
||||
loop {
|
||||
tokio::time::sleep(tokio::time::Duration::from_millis(1000 * 1000)).await;
|
||||
}
|
||||
}
|
||||
49
src/shutdown.rs
Normal file
49
src/shutdown.rs
Normal file
@ -0,0 +1,49 @@
|
||||
use tokio::sync::broadcast;
|
||||
|
||||
/// Listens for the server shutdown signal.
|
||||
///
|
||||
/// Shutdown is signalled using a `broadcast::Receiver`. Only a single value is
|
||||
/// ever sent. Once a value has been sent via the broadcast channel, the server
|
||||
/// should shutdown.
|
||||
///
|
||||
/// The `Shutdown` struct listens for the signal and tracks that the signal has
|
||||
/// been received. Callers may query for whether the shutdown signal has been
|
||||
/// received or not.
|
||||
#[derive(Debug)]
|
||||
pub(crate) struct Shutdown {
|
||||
/// `true` if the shutdown signal has been received
|
||||
shutdown: bool,
|
||||
|
||||
/// The receive half of the channel used to listen for shutdown.
|
||||
notify: broadcast::Receiver<()>,
|
||||
}
|
||||
|
||||
impl Shutdown {
|
||||
/// Create a new `Shutdown` backed by the given `broadcast::Receiver`.
|
||||
pub(crate) fn new(notify: broadcast::Receiver<()>) -> Shutdown {
|
||||
Shutdown {
|
||||
shutdown: false,
|
||||
notify,
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns `true` if the shutdown signal has been received.
|
||||
pub(crate) fn is_shutdown(&self) -> bool {
|
||||
self.shutdown
|
||||
}
|
||||
|
||||
/// Receive the shutdown notice, waiting if necessary.
|
||||
pub(crate) async fn recv(&mut self) {
|
||||
// If the shutdown signal has already been received, then return
|
||||
// immediately.
|
||||
if self.shutdown {
|
||||
return;
|
||||
}
|
||||
|
||||
// Cannot receive a "lag error" as only one value is ever sent.
|
||||
let _ = self.notify.recv().await;
|
||||
|
||||
// Remember that the signal has been received.
|
||||
self.shutdown = true;
|
||||
}
|
||||
}
|
||||
51
src/tcp.rs
Normal file
51
src/tcp.rs
Normal file
@ -0,0 +1,51 @@
|
||||
use crate::listener::Listener;
|
||||
use std::error::Error;
|
||||
use tokio::net::{TcpListener, TcpStream};
|
||||
|
||||
#[derive(Debug)]
|
||||
struct TcpHandler {
|
||||
stream: TcpStream,
|
||||
target: String,
|
||||
}
|
||||
|
||||
impl TcpHandler {
|
||||
async fn run(&mut self) -> Result<(), Box<dyn Error>> {
|
||||
let mut stream = TcpStream::connect(&self.target).await?;
|
||||
|
||||
tokio::io::copy_bidirectional(&mut self.stream, &mut stream).await?;
|
||||
|
||||
return Ok(());
|
||||
}
|
||||
}
|
||||
|
||||
pub(crate) async fn start_tcp_listener(
|
||||
mut listener_config: Listener,
|
||||
) -> Result<(), Box<dyn Error>> {
|
||||
println!("start listening on {}", &listener_config.source);
|
||||
let listener = TcpListener::bind(&listener_config.source).await?;
|
||||
|
||||
loop {
|
||||
let (next_socket, _) = tokio::select! {
|
||||
res = listener.accept() => res?,
|
||||
_ = listener_config.shutdown.recv() => {
|
||||
return Ok(());
|
||||
}
|
||||
};
|
||||
println!(
|
||||
"new connection from {} forwarding to {}",
|
||||
next_socket.peer_addr()?,
|
||||
&listener_config.target
|
||||
);
|
||||
let mut handler = TcpHandler {
|
||||
stream: next_socket,
|
||||
target: listener_config.target.clone(),
|
||||
};
|
||||
|
||||
tokio::spawn(async move {
|
||||
// Process the connection. If an error is encountered, log it.
|
||||
if let Err(err) = handler.run().await {
|
||||
println!("connection error {}", err);
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
2
src/udp.rs
Normal file
2
src/udp.rs
Normal file
@ -0,0 +1,2 @@
|
||||
// For UDP to work, there is some magic required with matches the returning packets
|
||||
// back to the original sender. Idk. how to do that right now, but maybe some day.
|
||||
Loading…
Reference in New Issue
Block a user