From 0015f2eead653926d1a2c2df499dc94d81c8c9fd Mon Sep 17 00:00:00 2001
From: Jurriaan Mous <jurmous@jurmo.us>
Date: Sun, 29 Dec 2024 15:30:10 +0100
Subject: [PATCH] Add extra info to C Error so Code and SubCode can be
 deciphered.

---
 db/c.cc | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/db/c.cc b/db/c.cc
index 0858568afef0..06dde26b151d 100644
--- a/db/c.cc
+++ b/db/c.cc
@@ -572,14 +572,20 @@ static bool SaveError(char** errptr, const Status& s) {
   assert(errptr != nullptr);
   if (s.ok()) {
     return false;
-  } else if (*errptr == nullptr) {
-    *errptr = strdup(s.ToString().c_str());
-  } else {
+  }
+
+  if (*errptr != nullptr) {
     // TODO(sanjay): Merge with existing error?
     // This is a bug if *errptr is not created by malloc()
     free(*errptr);
-    *errptr = strdup(s.ToString().c_str());
   }
+
+  std::string combined_error = "[" +
+  	  std::to_string(static_cast<unsigned int>(s.code())) + "|" +
+  	  std::to_string(static_cast<unsigned int>(s.subcode())) + "] " +
+  	  s.ToString();
+
+  *errptr = strdup(combined_error.c_str());
   return true;
 }