update to Scala 3.5.0

.github/workflows/workflow.yml

@@ -5,11 +5,11 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/[email protected]
       with:
         fetch-depth: 0
     - uses: coursier/[email protected]
-    - uses: VirtusLab/[email protected].1
+    - uses: VirtusLab/[email protected].3
     - run: scala-cli compile .

project.scala

@@ -1,4 +1,4 @@
-//> using scala 3.4.2
+//> using scala 3.5.0
 //> using platform native
 //> using nativeVersion 0.5.5
 //> using exclude "gatling/*"

scripts/installGatling.sc

@@ -1,5 +1,5 @@
 #!/usr/bin/env -S scala-cli
-//> using dep com.lihaoyi::os-lib:0.10.3
+//> using dep com.lihaoyi::os-lib:0.10.4
 
 // download Gatling Highcharts Bundle
 println("Downloading Gatling 3.10.5 to directory ./gatling")

src/main/scala/ch08/common/FilePipe.scala → src/main/scala/ch08/filePipe/FilePipe.scala

@@ -16,7 +16,7 @@ object FilePipe:
 
   var activeStreams: mutable.Set[Int] = mutable.Set()
   var handlers = mutable.HashMap[Int, Pipe[String, String]]()
-  var serial = 0
+  var serial = 0 // keep mutable state, just like SyncPipe
 
   def apply(path: CString): Pipe[String, String] =
     val req = stdlib.malloc(uv_req_size(UV_FS_REQ_T)).asInstanceOf[FSReq]
@@ -39,13 +39,15 @@ object FilePipe:
     println("about to read")
     uv_fs_read(ch07.EventLoop.loop, req, fd, buf, 1, -1, readCB)
     println("read started")
+
     val pipe = Pipe.source[String]
     handlers(fd) = pipe
+
     println("about to return")
     activeStreams += fd
     pipe
 
-  val readCB: FSCB = CFuncPtr1.fromScalaFunction[FSReq, Unit]: (req: FSReq) =>
+  val readCB: FSCB = CFuncPtr1.fromScalaFunction: (req: FSReq) =>
     println("read callback fired!")
     val res = uv_fs_get_result(req)
     println(s"got result: $res")