From 1e3794c476caf5c41360c36cc13c8425ec0dd26c Mon Sep 17 00:00:00 2001
From: Javier <dev.git@javispedro.com>
Date: Mon, 1 Dec 2014 02:21:30 +0100
Subject: implement message passing around jskit apps and watch

---
 daemon/packer.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 daemon/packer.h

(limited to 'daemon/packer.h')

diff --git a/daemon/packer.h b/daemon/packer.h
new file mode 100644
index 0000000..d22072c
--- /dev/null
+++ b/daemon/packer.h
@@ -0,0 +1,67 @@
+#ifndef PACKER_H
+#define PACKER_H
+
+#include <QtEndian>
+#include <QByteArray>
+#include <QString>
+#include <QUuid>
+#include <QVariantMap>
+#include <Log4Qt/Logger>
+
+class Packer
+{
+    LOG4QT_DECLARE_STATIC_LOGGER(logger, Packer)
+
+public:
+    Packer(QByteArray *buf);
+
+    template <typename T>
+    void write(T v);
+
+    template <typename T>
+    void writeLE(T v);
+
+    void writeBytes(int n, const QByteArray &b);
+
+    void writeFixedString(int n, const QString &s);
+
+    void writeUuid(const QUuid &uuid);
+
+    void writeDict(const QMap<int, QVariant> &d);
+
+private:
+    char *p(int n);
+    uchar *up(int n);
+    QByteArray *_buf;
+};
+
+inline Packer::Packer(QByteArray *buf)
+    : _buf(buf)
+{
+}
+
+template <typename T>
+void Packer::write(T v)
+{
+    qToBigEndian(v, up(sizeof(T)));
+}
+
+template <typename T>
+void Packer::writeLE(T v)
+{
+    qToLittleEndian(v, up(sizeof(T)));
+}
+
+inline char * Packer::p(int n)
+{
+    int size = _buf->size();
+    _buf->resize(size + n);
+    return &_buf->data()[size];
+}
+
+inline uchar * Packer::up(int n)
+{
+    return reinterpret_cast<uchar *>(p(n));
+}
+
+#endif // PACKER_H
-- 
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