feat: rework config to use builder pattern

glue/src/e2e.rs

@@ -4,6 +4,7 @@ use std::time::Duration;
 
 use jni::objects::GlobalRef;
 use no_std_net::SocketAddr;
+use toad::config::Config;
 use toad::net::Addrd;
 use toad::platform::Platform;
 use toad_jni::java::lang::System;
@@ -28,7 +29,7 @@ fn init() -> State {
   let mut _env = crate::test::init();
   let env = &mut _env;
 
-  let cfg = RuntimeConfig::new(env);
+  let cfg = RuntimeConfig::new(env, Config::default(), 5683);
   let runtime = Runtime::get_or_init(env, cfg);
   let client = crate::Runtime::try_new("0.0.0.0:5684", Default::default()).unwrap();
 

glue/src/lib.rs

@@ -45,6 +45,7 @@ pub mod test {
   use std::sync::Once;
 
   use jni::{InitArgsBuilder, JavaVM};
+  use toad::config::Config;
   use toad::retry::Strategy;
   use toad::time::Millis;
   use toad_jni::java;
@@ -80,8 +81,8 @@ pub mod test {
     let mut e = init();
     let e = &mut e;
 
-    let r = RuntimeConfig::new(e);
-    assert_eq!(r.to_toad(e), Default::default());
+    let r = RuntimeConfig::new(e, Config::default(), 5683);
+    assert_eq!(r.to_toad(e), Config::default());
   }
 
   #[test]

glue/src/mem.rs

@@ -53,7 +53,9 @@ struct Mem {
 pub struct GlobalStatic;
 impl SharedMemoryRegion for GlobalStatic {
   unsafe fn dealloc() {
-    drop(Box::from_raw(MEM));
+    if !MEM.is_null() {
+      drop(Box::from_raw(MEM));
+    }
   }
 
   unsafe fn init(r: impl FnOnce() -> crate::Runtime) -> *mut crate::Runtime {

glue/src/runtime.rs

@@ -36,8 +36,7 @@ impl Runtime {
   }
 
   fn init_impl(e: &mut java::Env, cfg: RuntimeConfig) -> i64 {
-    let r =
-      || ToadRuntime::try_new(format!("0.0.0.0:{}", cfg.net(e).port(e)), cfg.to_toad(e)).unwrap();
+    let r = || ToadRuntime::try_new(format!("0.0.0.0:{}", cfg.port(e)), cfg.to_toad(e)).unwrap();
     unsafe { crate::mem::Shared::init(r).addr() as i64 }
   }
 

glue/src/runtime_config.rs

@@ -1,7 +1,9 @@
-use toad::config::{self, BytesPerSecond};
+use jni::objects::JClass;
+use jni::sys::jobject;
+use toad::config::{self, BytesPerSecond, Config};
 use toad::retry::{Attempts, Strategy};
 use toad::time::Millis;
-use toad_jni::java;
+use toad_jni::java::{self, Class, Object};
 
 use crate::retry_strategy::RetryStrategy;
 use crate::uint;
@@ -10,91 +12,69 @@ pub struct RuntimeConfig(java::lang::Object);
 
 java::object_newtype!(RuntimeConfig);
 impl java::Class for RuntimeConfig {
-  const PATH: &'static str = package!(dev.toad.RuntimeOptions);
+  const PATH: &'static str = concat!(package!(dev.toad.Runtime), "$Config");
 }
 
 impl RuntimeConfig {
-  pub fn new(e: &mut java::Env) -> Self {
-    static CTOR: java::Constructor<RuntimeConfig, fn()> = java::Constructor::new();
-    CTOR.invoke(e)
-  }
-
-  pub fn net(&self, e: &mut java::Env) -> Net {
-    static NET: java::Method<RuntimeConfig, fn() -> Net> = java::Method::new("net");
-    NET.invoke(e, self)
-  }
-
-  pub fn to_toad(&self, e: &mut java::Env) -> config::Config {
-    let def = config::Config::default();
-
-    let net = self.net(e);
-    let msg = net.msg(e);
-    let con = msg.con(e);
-    let non = msg.non(e);
-
-    config::Config { max_concurrent_requests: net.concurrency(e) as u8,
-                     msg: config::Msg { token_seed: msg.token_seed(e)
-                                                       .map(|i| i as u16)
-                                                       .unwrap_or(def.msg.token_seed),
-                                        probing_rate: msg.probing_rate(e)
-                                                         .map(|i| BytesPerSecond(i as u16))
-                                                         .unwrap_or(def.msg.probing_rate),
-                                        multicast_response_leisure:
-                                          msg.multicast_response_leisure(e)
-                                             .unwrap_or(def.msg.multicast_response_leisure),
-                                        con:
-                                          config::Con { unacked_retry_strategy:
-                                                          con.unacked_retry_strategy(e)
-                                                             .unwrap_or(def.msg
-                                                                           .con
-                                                                           .unacked_retry_strategy),
-                                                        acked_retry_strategy:
-                                                          con.acked_retry_strategy(e)
-                                                             .unwrap_or(def.msg
-                                                                           .con
-                                                                           .acked_retry_strategy),
-                                                        max_attempts:
-                                                          con.max_attempts(e)
-                                                             .map(|i| Attempts(i as u16))
-                                                             .unwrap_or(def.msg.con.max_attempts) },
-                                        non: config::Non { retry_strategy:
-                                                             non.retry_strategy(e)
-                                                                .unwrap_or(def.msg
-                                                                              .non
-                                                                              .retry_strategy),
-                                                           max_attempts:
-                                                             non.max_attempts(e)
-                                                                .map(|i| Attempts(i as u16))
-                                                                .unwrap_or(def.msg.non.max_attempts) } } }
-  }
-}
-
-pub struct Net(java::lang::Object);
-java::object_newtype!(Net);
-impl java::Class for Net {
-  const PATH: &'static str = concat!(package!(dev.toad.RuntimeOptions), "$Net");
-}
-
-static NET_PORT: java::Field<Net, uint::u16> = java::Field::new("port");
-
-impl Net {
   pub fn port(&self, e: &mut java::Env) -> u16 {
-    NET_PORT.get(e, self).to_rust(e)
-  }
-
-  pub fn set_port(&self, e: &mut java::Env, new: u16) {
-    let new = uint::u16::from_rust(e, new);
-    NET_PORT.set(e, self, new)
+    static RUNTIME_CONFIG_PORT: java::Field<RuntimeConfig, uint::u16> = java::Field::new("port");
+    RUNTIME_CONFIG_PORT.get(e, self).to_rust(e)
   }
 
   pub fn concurrency(&self, e: &mut java::Env) -> u8 {
-    static CONCURRENCY: java::Field<Net, uint::u8> = java::Field::new("concurrency");
-    CONCURRENCY.get(e, self).to_rust(e)
+    static RUNTIME_CONFIG_CONCURRENCY: java::Field<RuntimeConfig, uint::u8> =
+      java::Field::new("concurrency");
+    RUNTIME_CONFIG_CONCURRENCY.get(e, self).to_rust(e)
   }
 
   pub fn msg(&self, e: &mut java::Env) -> Msg {
-    static MSG: java::Method<Net, fn() -> Msg> = java::Method::new("msg");
-    MSG.invoke(e, self)
+    static RUNTIME_CONFIG_MSG: java::Method<RuntimeConfig, fn() -> Msg> = java::Method::new("msg");
+    RUNTIME_CONFIG_MSG.invoke(e, self)
+  }
+
+  pub fn new(e: &mut java::Env, c: Config, port: u16) -> Self {
+    static CTOR: java::Constructor<RuntimeConfig, fn(uint::u16, uint::u8, Msg)> =
+      java::Constructor::new();
+
+    let con = Con::new(e,
+                       c.msg.con.unacked_retry_strategy,
+                       c.msg.con.acked_retry_strategy,
+                       c.msg.con.max_attempts);
+    let non = Non::new(e, c.msg.non.retry_strategy, c.msg.non.max_attempts);
+    let msg = Msg::new(e,
+                       c.msg.token_seed,
+                       c.msg.probing_rate.0,
+                       c.msg.multicast_response_leisure,
+                       con,
+                       non);
+
+    let port = uint::u16::from_rust(e, port);
+    let concurrency = uint::u8::from_rust(e, c.max_concurrent_requests);
+
+    let jcfg = CTOR.invoke(e, port, concurrency, msg);
+    jcfg
+  }
+
+  pub fn to_toad(&self, e: &mut java::Env) -> config::Config {
+    let msg = self.msg(e);
+    let con = msg.con(e);
+    let non = msg.non(e);
+
+    config::Config { max_concurrent_requests: self.concurrency(e) as u8,
+                     msg: config::Msg { token_seed: msg.token_seed(e) as _,
+                                        probing_rate: BytesPerSecond(msg.probing_rate(e) as _),
+                                        multicast_response_leisure:
+                                          msg.multicast_response_leisure(e),
+                                        con: config::Con { unacked_retry_strategy:
+                                                             con.unacked_retry_strategy(e),
+                                                           acked_retry_strategy:
+                                                             con.acked_retry_strategy(e),
+                                                           max_attempts:
+                                                             Attempts(con.max_attempts(e) as _) },
+                                        non: config::Non { retry_strategy:
+                                                             non.retry_strategy(e),
+                                                           max_attempts:
+                                                             Attempts(non.max_attempts(e) as _) } } }
   }
 }
 
@@ -103,30 +83,49 @@ pub struct Msg(java::lang::Object);
 java::object_newtype!(Msg);
 
 impl java::Class for Msg {
-  const PATH: &'static str = concat!(package!(dev.toad.RuntimeOptions), "$Msg");
+  const PATH: &'static str = concat!(package!(dev.toad.Runtime), "$Config$Msg");
 }
 
 impl Msg {
-  pub fn token_seed(&self, e: &mut java::Env) -> Option<i32> {
-    static TOKEN_SEED: java::Method<Msg, fn() -> java::util::Optional<i32>> =
-      java::Method::new("tokenSeed");
-    TOKEN_SEED.invoke(e, self).to_option(e)
+  pub fn new(e: &mut java::Env,
+             token_seed: u16,
+             probe_rate: u16,
+             multicast_response_leisure: Millis,
+             con: Con,
+             non: Non)
+             -> Self {
+    static CTOR: java::Constructor<Msg, fn(uint::u16, uint::u16, java::time::Duration, Con, Non)> =
+      java::Constructor::new();
+    let token_seed = uint::u16::from_rust(e, token_seed);
+    let probe_rate = uint::u16::from_rust(e, probe_rate);
+    let multicast_response_leisure =
+      java::time::Duration::of_millis(e, multicast_response_leisure.0 as i64);
+
+    CTOR.invoke(e,
+                token_seed,
+                probe_rate,
+                multicast_response_leisure,
+                con,
+                non)
   }
 
-  pub fn probing_rate(&self, e: &mut java::Env) -> Option<i32> {
-    static PROBING_RATE: java::Method<Msg, fn() -> java::util::Optional<i32>> =
+  pub fn token_seed(&self, e: &mut java::Env) -> i32 {
+    static TOKEN_SEED: java::Method<Msg, fn() -> i32> = java::Method::new("tokenSeed");
+    TOKEN_SEED.invoke(e, self)
+  }
+
+  pub fn probing_rate(&self, e: &mut java::Env) -> i32 {
+    static PROBING_RATE: java::Method<Msg, fn() -> i32> =
       java::Method::new("probingRateBytesPerSecond");
-    PROBING_RATE.invoke(e, self).to_option(e)
+    PROBING_RATE.invoke(e, self)
   }
 
-  pub fn multicast_response_leisure(&self, e: &mut java::Env) -> Option<Millis> {
-    static MULTICAST_RESP_LEISURE: java::Method<Msg,
-                                                  fn()
-                                                     -> java::util::Optional<java::time::Duration>> =
+  pub fn multicast_response_leisure(&self, e: &mut java::Env) -> Millis {
+    static MULTICAST_RESP_LEISURE: java::Method<Msg, fn() -> java::time::Duration> =
       java::Method::new("multicastResponseLeisure");
-    MULTICAST_RESP_LEISURE.invoke(e, self)
-                          .to_option(e)
-                          .map(|d| Millis::new(d.to_millis(e) as u64))
+    let d = MULTICAST_RESP_LEISURE.invoke(e, self);
+
+    Millis::new(d.to_millis(e) as u64)
   }
 
   pub fn con(&self, e: &mut java::Env) -> Con {
@@ -144,30 +143,38 @@ pub struct Con(java::lang::Object);
 
 java::object_newtype!(Con);
 impl java::Class for Con {
-  const PATH: &'static str = concat!(package!(dev.toad.RuntimeOptions), "$Msg$Con");
+  const PATH: &'static str = concat!(package!(dev.toad.Runtime), "$Config$Msg$Con");
 }
 
 impl Con {
-  pub fn acked_retry_strategy(&self, e: &mut java::Env) -> Option<Strategy> {
-    static ACKED_RETRY_STRATEGY: java::Method<Con, fn() -> java::util::Optional<RetryStrategy>> =
+  pub fn new(e: &mut java::Env,
+             unacked: toad::retry::Strategy,
+             acked: toad::retry::Strategy,
+             max_attempts: Attempts)
+             -> Self {
+    static CTOR: java::Constructor<Con, fn(RetryStrategy, RetryStrategy, uint::u16)> =
+      java::Constructor::new();
+    let unacked = RetryStrategy::from_toad(e, unacked);
+    let acked = RetryStrategy::from_toad(e, acked);
+    let att = uint::u16::from_rust(e, max_attempts.0);
+    CTOR.invoke(e, unacked, acked, att)
+  }
+
+  pub fn acked_retry_strategy(&self, e: &mut java::Env) -> Strategy {
+    static ACKED_RETRY_STRATEGY: java::Method<Con, fn() -> RetryStrategy> =
       java::Method::new("ackedRetryStrategy");
-    ACKED_RETRY_STRATEGY.invoke(e, self)
-                        .to_option(e)
-                        .map(|s| s.to_toad(e))
+    ACKED_RETRY_STRATEGY.invoke(e, self).to_toad(e)
   }
 
-  pub fn unacked_retry_strategy(&self, e: &mut java::Env) -> Option<Strategy> {
-    static UNACKED_RETRY_STRATEGY: java::Method<Con, fn() -> java::util::Optional<RetryStrategy>> =
+  pub fn unacked_retry_strategy(&self, e: &mut java::Env) -> Strategy {
+    static UNACKED_RETRY_STRATEGY: java::Method<Con, fn() -> RetryStrategy> =
       java::Method::new("unackedRetryStrategy");
-    UNACKED_RETRY_STRATEGY.invoke(e, self)
-                          .to_option(e)
-                          .map(|s| s.to_toad(e))
+    UNACKED_RETRY_STRATEGY.invoke(e, self).to_toad(e)
   }
 
-  pub fn max_attempts(&self, e: &mut java::Env) -> Option<i32> {
-    static MAX_ATTEMPTS: java::Method<Con, fn() -> java::util::Optional<i32>> =
-      java::Method::new("maxAttempts");
-    MAX_ATTEMPTS.invoke(e, self).to_option(e)
+  pub fn max_attempts(&self, e: &mut java::Env) -> i32 {
+    static MAX_ATTEMPTS: java::Method<Con, fn() -> i32> = java::Method::new("maxAttempts");
+    MAX_ATTEMPTS.invoke(e, self)
   }
 }
 
@@ -175,21 +182,32 @@ pub struct Non(java::lang::Object);
 
 java::object_newtype!(Non);
 impl java::Class for Non {
-  const PATH: &'static str = concat!(package!(dev.toad.RuntimeOptions), "$Msg$Non");
+  const PATH: &'static str = concat!(package!(dev.toad.Runtime), "$Config$Msg$Non");
 }
 
 impl Non {
-  pub fn retry_strategy(&self, e: &mut java::Env) -> Option<Strategy> {
-    static RETRY_STRATEGY: java::Method<Non, fn() -> java::util::Optional<RetryStrategy>> =
-      java::Method::new("retryStrategy");
-    RETRY_STRATEGY.invoke(e, self)
-                  .to_option(e)
-                  .map(|s| s.to_toad(e))
+  pub fn new(e: &mut java::Env, strat: toad::retry::Strategy, max_attempts: Attempts) -> Self {
+    static CTOR: java::Constructor<Non, fn(RetryStrategy, uint::u16)> = java::Constructor::new();
+    let strat = RetryStrategy::from_toad(e, strat);
+    let att = uint::u16::from_rust(e, max_attempts.0);
+    CTOR.invoke(e, strat, att)
   }
 
-  pub fn max_attempts(&self, e: &mut java::Env) -> Option<i32> {
-    static MAX_ATTEMPTS: java::Method<Non, fn() -> java::util::Optional<i32>> =
-      java::Method::new("maxAttempts");
-    MAX_ATTEMPTS.invoke(e, self).to_option(e)
+  pub fn retry_strategy(&self, e: &mut java::Env) -> Strategy {
+    static RETRY_STRATEGY: java::Method<Non, fn() -> RetryStrategy> =
+      java::Method::new("retryStrategy");
+    RETRY_STRATEGY.invoke(e, self).to_toad(e)
+  }
+
+  pub fn max_attempts(&self, e: &mut java::Env) -> i32 {
+    static MAX_ATTEMPTS: java::Method<Non, fn() -> i32> = java::Method::new("maxAttempts");
+    MAX_ATTEMPTS.invoke(e, self)
   }
 }
+
+#[no_mangle]
+pub extern "system" fn Java_dev_toad_Runtime_defaultConfigImpl<'local>(mut env: java::Env<'local>,
+                                                                       _: JClass<'local>)
+                                                                       -> jobject {
+  RuntimeConfig::new(&mut env, Config::default(), 5683).yield_to_java(&mut env)
+}

src/main/java/dev.toad/Runtime.java

@@ -1,24 +1,340 @@
 package dev.toad;
 
+import dev.toad.ffi.*;
 import dev.toad.msg.MessageRef;
+import java.time.Duration;
 import java.util.Optional;
 
+interface BuilderPort {
+  Runtime.Config.Builder port(short port);
+}
+
 public class Runtime {
+
+  protected static native Config defaultConfigImpl();
+
+  protected static Config defaultConfig = null;
+
+  protected static Config defaultConfig() {
+    if (Runtime.defaultConfig == null) {
+      Runtime.defaultConfig = Runtime.defaultConfigImpl();
+    }
+
+    return Runtime.defaultConfig;
+  }
+
   static {
     System.loadLibrary("toad_java_glue");
   }
 
   private final long addr;
 
-  private static native long init(RuntimeOptions o);
+  private static native long init(Config o);
 
   private native Optional<MessageRef> pollReq();
 
-  public static Runtime getOrInit(RuntimeOptions o) {
+  public static Runtime getOrInit(Config o) {
     return new Runtime(o);
   }
 
-  public Runtime(RuntimeOptions o) {
+  public Runtime(Config o) {
     this.addr = Runtime.init(o);
   }
+
+  public static final class Config {
+
+    protected u16 port;
+    protected u8 concurrency;
+    protected Msg msg;
+
+    protected Config(u16 port, u8 concurrency, Msg msg) {
+      this.port = port;
+      this.concurrency = concurrency;
+      this.msg = msg;
+    }
+
+    @Override
+    public boolean equals(Object other) {
+      return switch (other) {
+        case Config o -> o.port == this.port &&
+        o.concurrency == this.concurrency &&
+        o.msg == this.msg;
+        default -> false;
+      };
+    }
+
+    public int port() {
+      return this.port.intValue();
+    }
+
+    public short concurrency() {
+      return this.concurrency.shortValue();
+    }
+
+    public Msg msg() {
+      return this.msg;
+    }
+
+    public static final class Builder implements BuilderPort {
+
+      public final Msg.Builder msg = Msg.builder();
+
+      protected Optional<u16> port = Optional.empty();
+      protected u8 concurrency = Runtime.defaultConfig().concurrency;
+
+      protected Builder() {}
+
+      public Config build() {
+        return new Config(this.port.get(), this.concurrency, this.msg.build());
+      }
+
+      public Builder port(short port) {
+        this.port = Optional.of(new u16(port));
+        return this;
+      }
+
+      public Builder concurrency(byte concurrency) {
+        this.concurrency = new u8(concurrency);
+        return this;
+      }
+    }
+
+    public static final class Msg {
+
+      protected u16 tokenSeed;
+      protected u16 probingRateBytesPerSecond;
+      protected Duration multicastResponseLeisure;
+      protected Con con;
+      protected Non non;
+
+      public static Builder builder() {
+        return new Builder();
+      }
+
+      protected Msg(
+        u16 tokenSeed,
+        u16 probingRateBytesPerSecond,
+        Duration multicastResponseLeisure,
+        Con con,
+        Non non
+      ) {
+        this.tokenSeed = tokenSeed;
+        this.probingRateBytesPerSecond = probingRateBytesPerSecond;
+        this.multicastResponseLeisure = multicastResponseLeisure;
+        this.con = con;
+        this.non = non;
+      }
+
+      @Override
+      public boolean equals(Object other) {
+        return switch (other) {
+          case Msg o -> o.tokenSeed == this.tokenSeed &&
+          o.probingRateBytesPerSecond == this.probingRateBytesPerSecond &&
+          o.multicastResponseLeisure == this.multicastResponseLeisure &&
+          o.con == this.con &&
+          o.non == this.non;
+          default -> false;
+        };
+      }
+
+      public int tokenSeed() {
+        return this.tokenSeed.intValue();
+      }
+
+      public int probingRateBytesPerSecond() {
+        return this.probingRateBytesPerSecond.intValue();
+      }
+
+      public Duration multicastResponseLeisure() {
+        return this.multicastResponseLeisure;
+      }
+
+      public Con con() {
+        return this.con;
+      }
+
+      public Non non() {
+        return this.non;
+      }
+
+      public static final class Builder {
+
+        public final Con.Builder con = Con.builder();
+        public final Non.Builder non = Non.builder();
+
+        protected u16 tokenSeed = Runtime.defaultConfig().msg.tokenSeed;
+        protected u16 probingRateBytesPerSecond = Runtime.defaultConfig()
+          .msg.probingRateBytesPerSecond;
+        protected Duration multicastResponseLeisure = Runtime.defaultConfig()
+          .msg.multicastResponseLeisure;
+
+        public Msg build() {
+          return new Msg(
+            this.tokenSeed,
+            this.probingRateBytesPerSecond,
+            this.multicastResponseLeisure,
+            this.con.build(),
+            this.non.build()
+          );
+        }
+
+        public Builder tokenSeed(u16 tokenSeed) {
+          this.tokenSeed = tokenSeed;
+          return this;
+        }
+
+        public Builder probingRateBytesPerSecond(
+          u16 probingRateBytesPerSecond
+        ) {
+          this.probingRateBytesPerSecond = probingRateBytesPerSecond;
+          return this;
+        }
+
+        public Builder multicastResponseLeisure(
+          Duration multicastResponseLeisure
+        ) {
+          this.multicastResponseLeisure = multicastResponseLeisure;
+          return this;
+        }
+
+        protected Builder() {}
+      }
+
+      public static final class Con {
+
+        protected RetryStrategy ackedRetryStrategy;
+        protected RetryStrategy unackedRetryStrategy;
+        protected u16 maxAttempts;
+
+        public static Builder builder() {
+          return new Builder();
+        }
+
+        protected Con(
+          RetryStrategy unackedRetryStrategy,
+          RetryStrategy ackedRetryStrategy,
+          u16 maxAttempts
+        ) {
+          this.unackedRetryStrategy = unackedRetryStrategy;
+          this.ackedRetryStrategy = ackedRetryStrategy;
+          this.maxAttempts = maxAttempts;
+        }
+
+        @Override
+        public boolean equals(Object other) {
+          return switch (other) {
+            case Con o -> this.ackedRetryStrategy == o.ackedRetryStrategy &&
+            this.unackedRetryStrategy == o.unackedRetryStrategy &&
+            this.maxAttempts == o.maxAttempts;
+            default -> false;
+          };
+        }
+
+        public RetryStrategy ackedRetryStrategy() {
+          return this.ackedRetryStrategy;
+        }
+
+        public RetryStrategy unackedRetryStrategy() {
+          return this.unackedRetryStrategy;
+        }
+
+        public int maxAttempts() {
+          return this.maxAttempts.intValue();
+        }
+
+        public static final class Builder {
+
+          protected RetryStrategy ackedRetryStrategy = Runtime.defaultConfig()
+            .msg.con.ackedRetryStrategy;
+          protected RetryStrategy unackedRetryStrategy = Runtime.defaultConfig()
+            .msg.con.unackedRetryStrategy;
+          protected u16 maxAttempts = Runtime.defaultConfig()
+            .msg.con.maxAttempts;
+
+          public Con build() {
+            return new Con(
+              this.unackedRetryStrategy,
+              this.ackedRetryStrategy,
+              this.maxAttempts
+            );
+          }
+
+          public Builder ackedRetryStrategy(RetryStrategy ackedRetryStrategy) {
+            this.ackedRetryStrategy = ackedRetryStrategy;
+            return this;
+          }
+
+          public Builder unackedRetryStrategy(
+            RetryStrategy unackedRetryStrategy
+          ) {
+            this.unackedRetryStrategy = unackedRetryStrategy;
+            return this;
+          }
+
+          public Builder maxAttempts(u16 maxAttempts) {
+            this.maxAttempts = maxAttempts;
+            return this;
+          }
+
+          protected Builder() {}
+        }
+      }
+
+      public static final class Non {
+
+        protected RetryStrategy retryStrategy;
+        protected u16 maxAttempts;
+
+        public static Builder builder() {
+          return new Builder();
+        }
+
+        protected Non(RetryStrategy retryStrategy, u16 maxAttempts) {
+          this.retryStrategy = retryStrategy;
+          this.maxAttempts = maxAttempts;
+        }
+
+        @Override
+        public boolean equals(Object other) {
+          return switch (other) {
+            case Non o -> this.retryStrategy == o.retryStrategy &&
+            this.maxAttempts == o.maxAttempts;
+            default -> false;
+          };
+        }
+
+        public RetryStrategy retryStrategy() {
+          return this.retryStrategy;
+        }
+
+        public int maxAttempts() {
+          return this.maxAttempts.intValue();
+        }
+
+        public static final class Builder {
+
+          protected RetryStrategy retryStrategy = Runtime.defaultConfig()
+            .msg.non.retryStrategy;
+          protected u16 maxAttempts = Runtime.defaultConfig()
+            .msg.non.maxAttempts;
+
+          public Non build() {
+            return new Non(this.retryStrategy, this.maxAttempts);
+          }
+
+          public Builder retryStrategy(RetryStrategy retryStrategy) {
+            this.retryStrategy = retryStrategy;
+            return this;
+          }
+
+          public Builder maxAttempts(u16 maxAttempts) {
+            this.maxAttempts = maxAttempts;
+            return this;
+          }
+
+          protected Builder() {}
+        }
+      }
+    }
+  }
 }

src/main/java/dev.toad/RuntimeOptions.java

@@ -1,319 +0,0 @@
-package dev.toad;
-
-import dev.toad.ffi.*;
-import java.time.Duration;
-import java.util.Optional;
-import java.util.function.Function;
-
-public final class RuntimeOptions implements Cloneable {
-
-  private Net net;
-
-  public RuntimeOptions() {
-    this.net = new Net();
-  }
-
-  @Override
-  public boolean equals(Object other) {
-    return switch (other) {
-      case RuntimeOptions o -> o.net == this.net;
-      default -> false;
-    };
-  }
-
-  public Net net() {
-    return this.net;
-  }
-
-  private RuntimeOptions with(Function<RuntimeOptions, RuntimeOptions> f) {
-    return f.apply(this.clone());
-  }
-
-  public RuntimeOptions withNet(Function<Net, Net> f) {
-    return this.with(self -> {
-        self.net = f.apply(self.net);
-        return self;
-      });
-  }
-
-  @Override
-  public RuntimeOptions clone() {
-    RuntimeOptions self = new RuntimeOptions();
-    self.net = this.net.clone();
-    return self;
-  }
-
-  public final class Net implements Cloneable {
-
-    private u16 port;
-    private u8 concurrency;
-    private Msg msg;
-
-    public Net() {
-      this.port = new u16(5683);
-      this.concurrency = new u8((short) 1);
-      this.msg = new Msg();
-    }
-
-    @Override
-    public boolean equals(Object other) {
-      return switch (other) {
-        case Net o -> o.port == this.port &&
-        o.concurrency == this.concurrency &&
-        o.msg == this.msg;
-        default -> false;
-      };
-    }
-
-    private Net with(Function<Net, Net> f) {
-      return f.apply(this.clone());
-    }
-
-    @Override
-    public Net clone() {
-      Net self = new Net();
-      self.port = this.port;
-      self.concurrency = this.concurrency;
-      self.msg = this.msg.clone();
-      return self;
-    }
-
-    public int port() {
-      return this.port.intValue();
-    }
-
-    public short concurrency() {
-      return this.concurrency.shortValue();
-    }
-
-    public Msg msg() {
-      return this.msg;
-    }
-
-    public Net withPort(short port) {
-      return this.with(self -> {
-          self.port = new u16(port);
-          return self;
-        });
-    }
-
-    public Net withConcurrency(short conc) {
-      return this.with(self -> {
-          self.concurrency = new u8(conc);
-          return self;
-        });
-    }
-
-    public Net withMsg(Function<Msg, Msg> f) {
-      return this.with(self -> {
-          self.msg = f.apply(self.msg);
-          return self;
-        });
-    }
-  }
-
-  public final class Msg implements Cloneable {
-
-    private Optional<u16> tokenSeed = Optional.empty();
-    private Optional<u16> probingRateBytesPerSecond = Optional.empty();
-    private Optional<Duration> multicastResponseLeisure = Optional.empty();
-    private Con con;
-    private Non non;
-
-    public Msg() {
-      this.con = new Con();
-      this.non = new Non();
-    }
-
-    private Msg with(Function<Msg, Msg> f) {
-      return f.apply(this.clone());
-    }
-
-    @Override
-    public boolean equals(Object other) {
-      return switch (other) {
-        case Msg o -> o.tokenSeed == this.tokenSeed &&
-        o.probingRateBytesPerSecond == this.probingRateBytesPerSecond &&
-        o.multicastResponseLeisure == this.multicastResponseLeisure &&
-        o.con == this.con &&
-        o.non == this.non;
-        default -> false;
-      };
-    }
-
-    @Override
-    public Msg clone() {
-      Msg self = new Msg();
-      self.tokenSeed = this.tokenSeed;
-      self.probingRateBytesPerSecond = this.probingRateBytesPerSecond;
-      self.multicastResponseLeisure = this.multicastResponseLeisure;
-      self.con = this.con.clone();
-      self.non = this.non.clone();
-      return self;
-    }
-
-    public Optional<Integer> tokenSeed() {
-      return this.tokenSeed.map(u16 -> u16.intValue());
-    }
-
-    public Optional<Integer> probingRateBytesPerSecond() {
-      return this.probingRateBytesPerSecond.map(u16 -> u16.intValue());
-    }
-
-    public Optional<Duration> multicastResponseLeisure() {
-      return this.multicastResponseLeisure;
-    }
-
-    public Con con() {
-      return this.con;
-    }
-
-    public Non non() {
-      return this.non;
-    }
-
-    public Msg withTokenSeed(int tokenSeed) {
-      return this.with(self -> {
-          self.tokenSeed = Optional.of(new u16(tokenSeed));
-          return self;
-        });
-    }
-
-    public Msg withProbingRateBytesBerSecond(int bps) {
-      return this.with(m -> {
-          m.probingRateBytesPerSecond = Optional.of(new u16(bps));
-          return m;
-        });
-    }
-
-    public Msg withMulticastResponseLeisure(Duration dur) {
-      return this.with(m -> {
-          m.multicastResponseLeisure = Optional.of(dur);
-          return m;
-        });
-    }
-
-    public Msg withCon(Function<Con, Con> f) {
-      return this.with(m -> {
-          m.con = f.apply(m.con);
-          return m;
-        });
-    }
-
-    public Msg withNon(Function<Non, Non> f) {
-      return this.with(m -> {
-          m.non = f.apply(m.non);
-          return m;
-        });
-    }
-
-    public final class Con implements Cloneable {
-
-      private Optional<RetryStrategy> ackedRetryStrategy = Optional.empty();
-      private Optional<RetryStrategy> unackedRetryStrategy = Optional.empty();
-      private Optional<u16> maxAttempts = Optional.empty();
-
-      public Con() {}
-
-      private Con with(Function<Con, Con> f) {
-        return f.apply(this.clone());
-      }
-
-      @Override
-      public boolean equals(Object other) {
-        return switch (other) {
-          case Con o -> this.ackedRetryStrategy == o.ackedRetryStrategy &&
-          this.unackedRetryStrategy == o.unackedRetryStrategy &&
-          this.maxAttempts == o.maxAttempts;
-          default -> false;
-        };
-      }
-
-      public Optional<RetryStrategy> ackedRetryStrategy() {
-        return this.ackedRetryStrategy;
-      }
-
-      public Optional<RetryStrategy> unackedRetryStrategy() {
-        return this.unackedRetryStrategy;
-      }
-
-      public Optional<Integer> maxAttempts() {
-        return this.maxAttempts.map(u16 -> u16.intValue());
-      }
-
-      public Con withAckedRetryStrategy(RetryStrategy r) {
-        return this.with(s -> {
-            s.ackedRetryStrategy = Optional.of(r);
-            return s;
-          });
-      }
-
-      public Con withUnackedRetryStrategy(RetryStrategy r) {
-        return this.with(s -> {
-            s.unackedRetryStrategy = Optional.of(r);
-            return s;
-          });
-      }
-
-      public Con withMaxAttempts(int a) {
-        return this.with(s -> {
-            s.maxAttempts = Optional.of(new u16(a));
-            return s;
-          });
-      }
-
-      @Override
-      public Con clone() {
-        return this;
-      }
-    }
-
-    public final class Non implements Cloneable {
-
-      private Optional<RetryStrategy> retryStrategy = Optional.empty();
-      private Optional<u16> maxAttempts = Optional.empty();
-
-      public Non() {}
-
-      @Override
-      public boolean equals(Object other) {
-        return switch (other) {
-          case Non o -> this.retryStrategy == o.retryStrategy &&
-          this.maxAttempts == o.maxAttempts;
-          default -> false;
-        };
-      }
-
-      private Non with(Function<Non, Non> f) {
-        return f.apply(this.clone());
-      }
-
-      public Optional<RetryStrategy> retryStrategy() {
-        return this.retryStrategy;
-      }
-
-      public Optional<Integer> maxAttempts() {
-        return this.maxAttempts.map(u16 -> u16.intValue());
-      }
-
-      public Non withRetryStrategy(RetryStrategy r) {
-        return this.with(s -> {
-            s.retryStrategy = Optional.of(r);
-            return s;
-          });
-      }
-
-      public Non withMaxAttempts(int a) {
-        return this.with(s -> {
-            s.maxAttempts = Optional.of(new u16(a));
-            return s;
-          });
-      }
-
-      @Override
-      public Non clone() {
-        return this;
-      }
-    }
-  }
-}