From 9c689f2f8bb78d69b4254424ad4c111c19965104 Mon Sep 17 00:00:00 2001
From: ArcueidType <981354012@qq.com>
Date: Thu, 7 Nov 2024 01:32:30 +0800
Subject: [PATCH] naive version which fails TEST LastLevelCompaction

---
 db/db_impl.cc     | 4 ++++
 db/dbformat.h     | 2 +-
 db/version_set.cc | 8 +++-----
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/db/db_impl.cc b/db/db_impl.cc
index 6d7af36..8a08424 100644
--- a/db/db_impl.cc
+++ b/db/db_impl.cc
@@ -606,6 +606,10 @@ void DBImpl::TEST_CompactRange(int level, const Slice* begin,
 
   InternalKey begin_storage, end_storage;
 
+  if (level == config::kNumLevels - 1) {
+    return;
+  }
+
   ManualCompaction manual;
   manual.level = level;
   manual.done = false;
diff --git a/db/dbformat.h b/db/dbformat.h
index a1c30ed..6dc0ba8 100644
--- a/db/dbformat.h
+++ b/db/dbformat.h
@@ -22,7 +22,7 @@ namespace leveldb {
 // Grouping of constants.  We may want to make some of these
 // parameters set via options.
 namespace config {
-static const int kNumLevels = 7;
+static const int kNumLevels = 3;
 
 // Level-0 compaction is started when we hit this many files.
 static const int kL0_CompactionTrigger = 4;
diff --git a/db/version_set.cc b/db/version_set.cc
index a9d80e2..b147e08 100644
--- a/db/version_set.cc
+++ b/db/version_set.cc
@@ -1104,13 +1104,11 @@ int VersionSet::NumLevelFiles(int level) const {
 
 const char* VersionSet::LevelSummary(LevelSummaryStorage* scratch) const {
   // Update code if kNumLevels changes
-  static_assert(config::kNumLevels == 7, "");
+  static_assert(config::kNumLevels == 3, "");
   std::snprintf(
-      scratch->buffer, sizeof(scratch->buffer), "files[ %d %d %d %d %d %d %d ]",
+      scratch->buffer, sizeof(scratch->buffer), "files[ %d %d %d ]",
       int(current_->files_[0].size()), int(current_->files_[1].size()),
-      int(current_->files_[2].size()), int(current_->files_[3].size()),
-      int(current_->files_[4].size()), int(current_->files_[5].size()),
-      int(current_->files_[6].size()));
+      int(current_->files_[2].size()));
   return scratch->buffer;
 }