From f455979eb1b65c9822b414aa9e6b04b5c43322a0 Mon Sep 17 00:00:00 2001
From: Andrew Chow <achow101-github@achow101.com>
Date: Tue, 20 Feb 2018 15:28:42 -0500
Subject: Add function to close all Db's and reload the databae environment

Adds a ReloadDbEnv function to BerkeleyEnvironment in order to close all Db
instances, closes the environment, resets it, and then reopens
the BerkeleyEnvironment.

Also adds a ReloadDbEnv function to BerkeleyDatabase that calls
BerkeleyEnvironment's ReloadDbEnv.

Github-Pull: #12493
Rebased-From: 5d296ac
---
 src/wallet/db.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/wallet/db.h')

diff --git a/src/wallet/db.h b/src/wallet/db.h
index b078edab7b..467ed13b45 100644
--- a/src/wallet/db.h
+++ b/src/wallet/db.h
@@ -38,6 +38,7 @@ public:
     std::unique_ptr<DbEnv> dbenv;
     std::map<std::string, int> mapFileUseCount;
     std::map<std::string, Db*> mapDb;
+    std::condition_variable_any m_db_in_use;
 
     BerkeleyEnvironment(const fs::path& env_directory);
     ~BerkeleyEnvironment();
@@ -75,6 +76,7 @@ public:
     void CheckpointLSN(const std::string& strFile);
 
     void CloseDb(const std::string& strFile);
+    void ReloadDbEnv();
 
     DbTxn* TxnBegin(int flags = DB_TXN_WRITE_NOSYNC)
     {
@@ -145,6 +147,8 @@ public:
 
     void IncrementUpdateCounter();
 
+    void ReloadDbEnv();
+
     std::atomic<unsigned int> nUpdateCounter;
     unsigned int nLastSeen;
     unsigned int nLastFlushed;
-- 
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