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, 20 insertions, 0 deletions

diff --git a/src/env-inl.h b/src/env-inl.h
index ef054be4cb..a489a4001a 100644
--- a/src/env-inl.h
+++ b/src/env-inl.h
@@ -638,6 +638,26 @@ inline const std::vector<std::string>& Environment::exec_argv() {
   return exec_argv_;
 }
 
+#if HAVE_INSPECTOR
+inline void Environment::set_coverage_directory(const char* dir) {
+  coverage_directory_ = std::string(dir);
+}
+
+inline void Environment::set_coverage_connection(
+    std::unique_ptr<profiler::V8CoverageConnection> connection) {
+  CHECK_NULL(coverage_connection_);
+  std::swap(coverage_connection_, connection);
+}
+
+inline profiler::V8CoverageConnection* Environment::coverage_connection() {
+  return coverage_connection_.get();
+}
+
+inline const std::string& Environment::coverage_directory() const {
+  return coverage_directory_;
+}
+#endif  // HAVE_INSPECTOR
+
 inline std::shared_ptr<HostPort> Environment::inspector_host_port() {
   return inspector_host_port_;
 }