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Implement Pluggable Name-resolution (#148)

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This defines a new trait `Resolver`, which turns an address into a
Vec<SocketAddr>. It also provides an implementation of Resolver for
`Fn(&str)` so it's easy to define simple resolvers with a closure.


Fixes #82

Co-authored-by: Ulrik <ulrikm@spotify.com>
This commit is contained in:
Ulrik Mikaelsson
2020-09-27 01:35:13 +02:00
committed by GitHub
parent 8bba07a9af
commit 11413726cd
7 changed files with 144 additions and 28 deletions
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14
src/pool.rs
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@@ -74,10 +74,6 @@ impl Default for ConnectionPool {
}
impl ConnectionPool {
pub fn new() -> Self {
Self::default()
}
pub fn set_max_idle_connections(&mut self, max_connections: usize) {
if self.max_idle_connections == max_connections {
return;
@@ -251,7 +247,7 @@ fn pool_connections_limit() {
// Test inserting connections with different keys into the pool,
// filling and draining it. The pool should evict earlier connections
// when the connection limit is reached.
let mut pool = ConnectionPool::new();
let mut pool = ConnectionPool::default();
let hostnames = (0..DEFAULT_MAX_IDLE_CONNECTIONS * 2).map(|i| format!("{}.example", i));
let poolkeys = hostnames.map(|hostname| PoolKey {
scheme: "https".to_string(),
@@ -276,7 +272,7 @@ fn pool_per_host_connections_limit() {
// Test inserting connections with the same key into the pool,
// filling and draining it. The pool should evict earlier connections
// when the per-host connection limit is reached.
let mut pool = ConnectionPool::new();
let mut pool = ConnectionPool::default();
let poolkey = PoolKey {
scheme: "https".to_string(),
hostname: "example.com".to_string(),
@@ -301,7 +297,7 @@ fn pool_per_host_connections_limit() {
#[test]
fn pool_update_connection_limit() {
let mut pool = ConnectionPool::new();
let mut pool = ConnectionPool::default();
pool.set_max_idle_connections(50);
let hostnames = (0..pool.max_idle_connections).map(|i| format!("{}.example", i));
@@ -321,7 +317,7 @@ fn pool_update_connection_limit() {
#[test]
fn pool_update_per_host_connection_limit() {
let mut pool = ConnectionPool::new();
let mut pool = ConnectionPool::default();
pool.set_max_idle_connections(50);
pool.set_max_idle_connections_per_host(50);
@@ -347,7 +343,7 @@ fn pool_update_per_host_connection_limit() {
fn pool_checks_proxy() {
// Test inserting different poolkeys with same address but different proxies.
// Each insertion should result in an additional entry in the pool.
let mut pool = ConnectionPool::new();
let mut pool = ConnectionPool::default();
let url = Url::parse("zzz:///example.com").unwrap();
pool.add(