feat(ext/ffi): Thread safe callbacks (#14942)

1 files changed, 38 insertions, 2 deletions

diff --git a/test_ffi/tests/integration_tests.rs b/test_ffi/tests/integration_tests.rs
index 77bcc758e..35f37aa14 100644
--- a/test_ffi/tests/integration_tests.rs
+++ b/test_ffi/tests/integration_tests.rs
@@ -77,6 +77,8 @@ fn basic() {
     true\n\
     Before\n\
     true\n\
+    After\n\
+    true\n\
     logCallback\n\
     1 -1 2 -2 3 -3 4n -4n 0.5 -0.5 1 2 3 4 5 6 7 8\n\
     u8: 8\n\
@@ -85,12 +87,14 @@ fn basic() {
     30\n\
     STORED_FUNCTION cleared\n\
     STORED_FUNCTION_2 cleared\n\
+    Thread safe call counter: 0\n\
+    logCallback\n\
+    Thread safe call counter: 1\n\
+    u8: 8\n\
     Static u32: 42\n\
     Static i64: -1242464576485n\n\
     Static ptr: true\n\
     Static ptr value: 42\n\
-    After\n\
-    true\n\
     Correct number of resources\n";
   assert_eq!(stdout, expected);
   assert_eq!(stderr, "");
@@ -118,3 +122,35 @@ fn symbol_types() {
   assert!(output.status.success());
   assert_eq!(stderr, "");
 }
+
+#[test]
+fn thread_safe_callback() {
+  build();
+
+  let output = deno_cmd()
+    .arg("run")
+    .arg("--allow-ffi")
+    .arg("--allow-read")
+    .arg("--unstable")
+    .arg("--quiet")
+    .arg("tests/thread_safe_test.js")
+    .env("NO_COLOR", "1")
+    .output()
+    .unwrap();
+  let stdout = std::str::from_utf8(&output.stdout).unwrap();
+  let stderr = std::str::from_utf8(&output.stderr).unwrap();
+  if !output.status.success() {
+    println!("stdout {}", stdout);
+    println!("stderr {}", stderr);
+  }
+  println!("{:?}", output.status);
+  assert!(output.status.success());
+  let expected = "\
+    Callback on main thread\n\
+    Callback on worker thread\n\
+    Calling callback, isolate should stay asleep until callback is called\n\
+    Callback being called\n\
+    Isolate should now exit\n";
+  assert_eq!(stdout, expected);
+  assert_eq!(stderr, "");
+}