From 2524a0e749eff6b89523cdd6dbcd90ab0569defc Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Sun, 21 Mar 2021 14:39:43 +0300
Subject: [PATCH] mdbx: output page type from `bad_page()`.

Change-Id: I11e4931de26015204c26c116e91e4a0e02f909b4
---
 src/core.c | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/core.c b/src/core.c
index 59a9e9ba..69f8bd12 100644
--- a/src/core.c
+++ b/src/core.c
@@ -641,8 +641,32 @@ __cold static int MDBX_PRINTF_ARGS(2, 3)
     static const MDBX_page *prev;
     if (prev != mp) {
       prev = mp;
+      const char *type;
+      switch (mp->mp_flags & (P_BRANCH | P_LEAF | P_OVERFLOW | P_META |
+                              P_LEAF2 | P_BAD | P_SUBP)) {
+      case P_BRANCH:
+        type = "branch";
+        break;
+      case P_LEAF:
+        type = "leaf";
+        break;
+      case P_LEAF | P_SUBP:
+        type = "subleaf";
+        break;
+      case P_LEAF | P_LEAF2:
+        type = "dupfixed-leaf";
+        break;
+      case P_LEAF | P_LEAF2 | P_SUBP:
+        type = "dupfixed-subleaf";
+        break;
+      case P_OVERFLOW:
+        type = "large";
+        break;
+      default:
+        type = "broken";
+      }
       mdbx_debug_log(MDBX_LOG_ERROR, "badpage", 0,
-                     "corrupted page #%u, mod-txnid %" PRIaTXN "\n",
+                     "corrupted %s-page #%u, mod-txnid %" PRIaTXN "\n", type,
                      mp->mp_pgno, mp->mp_txnid);
     }