From 2260790118358449a18527fcd9e6ff46d2caccf7 Mon Sep 17 00:00:00 2001
From: dec05eba <0xdec05eba@gmail.com>
Date: Mon, 14 May 2018 22:25:26 +0200
Subject: Implement node load/fetch order

---
 include/odhtdb/Database.hpp        |  5 +++--
 include/odhtdb/DatabaseOrder.hpp   | 18 ++++++++++++++++++
 include/odhtdb/DatabaseStorage.hpp |  5 +++--
 3 files changed, 24 insertions(+), 4 deletions(-)
 create mode 100644 include/odhtdb/DatabaseOrder.hpp

(limited to 'include')

diff --git a/include/odhtdb/Database.hpp b/include/odhtdb/Database.hpp
index 332a784..11a6cd4 100644
--- a/include/odhtdb/Database.hpp
+++ b/include/odhtdb/Database.hpp
@@ -12,6 +12,7 @@
 #include "Encryption.hpp"
 #include "OwnedMemory.hpp"
 #include "DatabaseOperation.hpp"
+#include "DatabaseOrder.hpp"
 #include <opendht/dhtrunner.h>
 #include <vector>
 #include <ntp/NtpClient.hpp>
@@ -162,9 +163,9 @@ namespace odhtdb
         ~Database();
 
         // Safe to call multiple times with same node hash, will be ignored if the node is already beeing seeded
-        void seed(const DatabaseNode &nodeToSeed);
+        void seed(const DatabaseNode &nodeToSeed, DatabaseFetchOrder fetchOrder = DatabaseFetchOrder::OLDEST_FIRST);
         void stopSeeding(const Hash &nodeHash);
-        void loadNode(const Hash &nodeHash);
+        void loadNode(const Hash &nodeHash, DatabaseLoadOrder loadOrder = DatabaseLoadOrder::OLDEST_FIRST);
         
         // Throws DatabaseCreateException on failure.
         std::unique_ptr<DatabaseCreateResponse> create();
diff --git a/include/odhtdb/DatabaseOrder.hpp b/include/odhtdb/DatabaseOrder.hpp
new file mode 100644
index 0000000..d9c3906
--- /dev/null
+++ b/include/odhtdb/DatabaseOrder.hpp
@@ -0,0 +1,18 @@
+#pragma once
+
+#include "types.hpp"
+
+namespace odhtdb
+{
+    enum class DatabaseFetchOrder : u8
+    {
+        OLDEST_FIRST,
+        NEWEST_FIRST
+    };
+    
+    enum class DatabaseLoadOrder : u8
+    {
+        OLDEST_FIRST,
+        NEWEST_FIRST
+    };
+}
diff --git a/include/odhtdb/DatabaseStorage.hpp b/include/odhtdb/DatabaseStorage.hpp
index 73b22b9..a004619 100644
--- a/include/odhtdb/DatabaseStorage.hpp
+++ b/include/odhtdb/DatabaseStorage.hpp
@@ -9,6 +9,7 @@
 #include "Permission.hpp"
 #include "OwnedMemory.hpp"
 #include "DatabaseOperation.hpp"
+#include "DatabaseOrder.hpp"
 #include <vector>
 #include <stdexcept>
 #include <boost/filesystem/path.hpp>
@@ -75,7 +76,7 @@ namespace odhtdb
         DatabaseStorage(Database *database, const boost::filesystem::path &storagePath);
         ~DatabaseStorage();
 
-        void loadNode(const Hash &nodeHash);
+        void loadNode(const Hash &nodeHash, DatabaseLoadOrder loadOrder);
         
         bool doesNodeExist(const Hash &nodeHash) const;
         bool doesDataExist(const Hash &requestHash) const;
@@ -96,7 +97,7 @@ namespace odhtdb
         void addUser(const Hash &nodeHash, const Signature::PublicKey &userPublicKey, const DataView &groupId);
         
         void fetchNodeRaw(const Hash &nodeHash, FetchNodeRawCallbackFunc callbackFunc);
-        void fetchNodeAddDataRaw(const Hash &nodeHash, FetchNodeAddDataRawCallbackFunc callbackFunc);
+        void fetchNodeAddDataRaw(const Hash &nodeHash, FetchNodeAddDataRawCallbackFunc callbackFunc, DatabaseFetchOrder fetchOrder);
         
         void fetchNodeUserActionGaps(const Hash &nodeHash, FetchNodeUserActionGapsCallbackFunc callbackFunc);
         void fetchNodeUserLatestActionCounter(const Hash &nodeHash, FetchNodeUserLatestActionCounterCallbackFunc callbackFunc);
-- 
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