close fd in destructor

Author: dmehala

src/datadog/platform_util.cpp

@@ -102,7 +102,7 @@ std::tuple<std::string, std::string> get_windows_info() {
   // application manifest, which is the lowest version supported by the
   // application. Use `RtlGetVersion` to obtain the accurate OS version
   // regardless of the manifest.
-  using RtlGetVersion = auto(*)(LPOSVERSIONINFOEXW)->NTSTATUS;
+  using RtlGetVersion = auto (*)(LPOSVERSIONINFOEXW)->NTSTATUS;
 
   RtlGetVersion func =
       (RtlGetVersion)GetProcAddress(GetModuleHandleA("ntdll"), "RtlGetVersion");
@@ -246,6 +246,7 @@ InMemoryFile::~InMemoryFile() {
   /// by `MFD_CLOEXEC`.
   if (handle_ == nullptr) return;
   int* data = static_cast<int*>(handle_);
+  close(*data);
   delete (data);
 }