feat(bridge): add option to configure thread pool size for async calls (#113)

* feat(bridge): add option to configure thread pool size for async calls

* fix(deps): make anyhow not an optional dependency

Author: MarkusJx

Cargo.lock

@@ -262,6 +262,15 @@ await str.length(); // 11
 await str.toString(); // 'Hello World'
 ```
 
+### Setting the number of threads
+
+When using asynchronous functions, by default, the number of threads used by these functions
+is determined by the number of physical CPUs available.
+In order to change this behaviour, set the `JAVA_BRIDGE_THREAD_POOL_SIZE` environment variable
+to the desired amount of threads.
+
+Note: Setting this to a non-numeric value will cause an error to be thrown during startup.
+
 ### Implement a Java interface
 
 You can also implement a Java interface in node.js using the

README.md

@@ -1,13 +1,13 @@
 [package]
 edition = "2021"
 name = "java"
-version = "2.4.0"
+version = "2.8.0"
 
 [lib]
 crate-type = ["cdylib"]
 
 [dependencies]
-napi = { version = "2.16.0", default-features = false, features = [
+napi = { version = "2.16.17", default-features = false, features = [
     "napi2",
     "napi3",
     "napi4",
@@ -18,26 +18,26 @@ napi = { version = "2.16.0", default-features = false, features = [
 ] }
 napi-derive = "2.16.13"
 futures = "0.3.31"
-java-locator = "0.1.8"
+java-locator = "0.1.9"
 lazy_static = "1.5.0"
-rand = "0.8.5"
+rand = "0.9.0"
 glob = "0.3.1"
 java-rs = { path = "../java-rs" }
 app-state = { git = "https://github.com/MarkusJx/app-state" }
 # TODO: remove this once the next version of napi-sys is released
 libloading = "0.8.6"
-anyhow = { version = "1.0.94", optional = true }
-log = { version = "0.4.22", optional = true }
+anyhow = "1.0.97"
+log = { version = "0.4.27", optional = true }
 log4rs = { version = "1.3.0", features = ["json_format"], optional = true }
-serde = { version = "1.0.216", optional = true }
+serde = { version = "1.0.219", optional = true }
 smart-default = "0.7.1"
-spin_sleep = "1.3.0"
+spin_sleep = "1.3.1"
 
 [build-dependencies]
-napi-build = "2.1.4"
+napi-build = "2.1.6"
 
 [features]
 default = []
 all = ["log", "type_check"]
 type_check = ["java-rs/type_check"]
-log = ["dep:log", "dep:log4rs", "dep:serde", "dep:anyhow", "java-rs/log"]
+log = ["dep:log", "dep:log4rs", "dep:serde", "java-rs/log"]

crates/java-bridge/Cargo.toml

@@ -149,7 +149,8 @@ mod logging {
     /// Call {@link logging.setLogCallbacks} to enable the `node` appender again.
     pub fn reset_log_callbacks() -> napi::Result<()> {
         debug!("Resetting log callbacks");
-        Ok(NodeWriter::set_callbacks(None, None))
+        NodeWriter::set_callbacks(None, None);
+        Ok(())
     }
 
     #[napi]