From b2987ccc32872924355ccc1802963d51a28ad7fe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20Schr=C3=B6ter?=
 <benjamin.schroeter@rhein-spree.com>
Date: Wed, 11 Nov 2015 13:14:04 +0100
Subject: [PATCH] When an exception is thrown during commit() it will execute a
 rollback cmd on the database.

---
 src/SQLite.Net/SQLiteConnection.cs | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/SQLite.Net/SQLiteConnection.cs b/src/SQLite.Net/SQLiteConnection.cs
index 475a9aa8..f0716793 100644
--- a/src/SQLite.Net/SQLiteConnection.cs
+++ b/src/SQLite.Net/SQLiteConnection.cs
@@ -1135,9 +1135,29 @@ public void Commit()
         {
             if (Interlocked.Exchange(ref _transactionDepth, 0) != 0)
             {
-                Execute("commit");
+                // Do nothing on a commit with no open transaction
+
+                try
+                {
+                    Execute("commit");
+                }
+                catch (Exception)
+                {
+                    // something went wrong. at least we should clean up
+                    try
+                    {
+                        Execute("rollback");
+                    }
+                    catch 
+                    {
+                        // if rollback won't work (e.g. commit was already ok) just silent fail
+                        // i did not see this, but just to be safe
+                    }
+                    
+                    // and throw the original exception anyway
+                    throw;
+                }
             }
-            // Do nothing on a commit with no open transaction
         }
 
         /// <summary>