Add APIs for marking the crash as happened during profiler serialization

crates/crashtracker/src/lib.rs

@@ -29,3 +29,17 @@ pub fn update_metadata (env: Env, metadata: JsUnknown) -> napi::Result<()> {
 
     Ok(())
 }
+
+#[napi]
+pub fn begin_profiler_serializing (_env: Env) -> napi::Result<()> {
+    let _ = datadog_crashtracker::begin_op(datadog_crashtracker::OpTypes::ProfilerSerializing);
+
+    Ok(())
+}
+
+#[napi]
+pub fn end_profiler_serializing (_env: Env) -> napi::Result<()> {
+    let _ = datadog_crashtracker::end_op(datadog_crashtracker::OpTypes::ProfilerSerializing);
+
+    Ok(())
+}

test/crashtracker/app.js

@@ -38,4 +38,5 @@ crashtracker.init({
   ]
 })
 
+crashtracker.beginProfilerSerializing()
 require('@datadog/segfaultify').segfaultify()

test/crashtracker/index.js

@@ -45,6 +45,13 @@ app.post('/telemetry/proxy/api/v2/apmtelemetry', (req, res) => {
     } else {
       throw new Error('Could not find a stack frame for the crashing function.')
     }
+
+    const tags = req.body.payload[0].tags.split(',')
+    if (tags.includes('profiler_serializing:1')) {
+      console.log('Stack trace was marked as happened during profile serialization.')
+    } else {
+      throw new Error('Stack trace was not marked as happening during profile serialization.')
+    }
   })
 })