src: port coverage serialization to C++

This patch moves the serialization of coverage profiles into
C++. With this we no longer need to patch `process.reallyExit`
and hook into the exit events, but instead hook into relevant
places in C++ which are safe from user manipulation. This also
makes the code easier to reuse for other types of profiles.

PR-URL: https://github.com/nodejs/node/pull/26874
Reviewed-By: Ben Coe <bencoe@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/node_internals.h b/src/node_internals.h
index e299d87730..7452dc05e9 100644
--- a/src/node_internals.h
+++ b/src/node_internals.h
@@ -308,15 +308,26 @@ v8::MaybeLocal<v8::Value> ExecuteBootstrapper(
     std::vector<v8::Local<v8::String>>* parameters,
     std::vector<v8::Local<v8::Value>>* arguments);
 void MarkBootstrapComplete(const v8::FunctionCallbackInfo<v8::Value>& args);
+
+#if HAVE_INSPECTOR
 namespace profiler {
 void StartCoverageCollection(Environment* env);
+void EndStartedProfilers(Environment* env);
 }
+#endif  // HAVE_INSPECTOR
+
 #ifdef _WIN32
 typedef SYSTEMTIME TIME_TYPE;
 #else  // UNIX, OSX
 typedef struct tm TIME_TYPE;
 #endif
 
+double GetCurrentTimeInMicroseconds();
+int WriteFileSync(const char* path, uv_buf_t buf);
+int WriteFileSync(v8::Isolate* isolate,
+                  const char* path,
+                  v8::Local<v8::String> string);
+
 class DiagnosticFilename {
  public:
   static void LocalTime(TIME_TYPE* tm_struct);