From 5fbb9c7a5e927ad7cd3f3f14593104855499101a Mon Sep 17 00:00:00 2001
From: Aaron Seigo <aseigo@kde.org>
Date: Tue, 16 Dec 2014 12:05:54 +0100
Subject: support writing commands without buffers and with pre-allocated
 buffers

---
 common/commands.cpp | 18 ++++++++++++++++++
 common/commands.h   |  3 +++
 2 files changed, 21 insertions(+)

diff --git a/common/commands.cpp b/common/commands.cpp
index abed8b9..ecbbfdb 100644
--- a/common/commands.cpp
+++ b/common/commands.cpp
@@ -28,6 +28,24 @@ namespace Akonadi2
 namespace Commands
 {
 
+void write(QIODevice *device, int commandId)
+{
+    write(device, commandId, 0, 0);
+}
+
+void write(QIODevice *device, int commandId, const char *buffer, uint size)
+{
+    if (size > 0 && !buffer) {
+        size = 0;
+    }
+
+    device->write((const char*)&commandId, sizeof(int));
+    device->write((const char*)&size, sizeof(uint));
+    if (buffer) {
+        device->write(buffer, size);
+    }
+}
+
 void write(QIODevice *device, int commandId, flatbuffers::FlatBufferBuilder &fbb)
 {
     const int dataSize = fbb.GetSize();
diff --git a/common/commands.h b/common/commands.h
index 0a2452f..2e84a2f 100644
--- a/common/commands.h
+++ b/common/commands.h
@@ -35,9 +35,12 @@ enum CommandIds {
     UnknownCommand = 0,
     HandshakeCommand,
     RevisionUpdateCommand,
+    SynchronizeCommand,
     CustomCommand = 0xffff
 };
 
+void AKONADI2COMMON_EXPORT write(QIODevice *device, int commandId);
+void AKONADI2COMMON_EXPORT write(QIODevice *device, int commandId, const char *buffer, uint size);
 void AKONADI2COMMON_EXPORT write(QIODevice *device, int commandId, flatbuffers::FlatBufferBuilder &fbb);
 
 }
-- 
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