From 586c8b850398e91f1da0579f3029802cd824dbc1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Krist=C3=B3f=20T=C3=B3th?= <kristof.toth@avatao.com>
Date: Mon, 8 Apr 2019 15:16:11 +0200
Subject: [PATCH] Implement C++ bindings for pipe io client

---
 clients/c_cpp/pipe_io.hpp | 72 +++++++++++++++++++++++++++++++++++++++
 clients/c_cpp/test.cpp    | 19 +++++++++++
 2 files changed, 91 insertions(+)
 create mode 100644 clients/c_cpp/pipe_io.hpp
 create mode 100644 clients/c_cpp/test.cpp

diff --git a/clients/c_cpp/pipe_io.hpp b/clients/c_cpp/pipe_io.hpp
new file mode 100644
index 0000000..57ffd8d
--- /dev/null
+++ b/clients/c_cpp/pipe_io.hpp
@@ -0,0 +1,72 @@
+extern "C" {
+#include "pipe_io.h"
+}
+#include <string>
+#include <iostream>
+
+
+class PipeReader {
+public:
+    PipeReader(const char* pipe_path)
+    :preader(new_pipe_reader(pipe_path)) {}
+
+    virtual ~PipeReader() {
+        close_pipe_reader(&this->preader);
+    }
+
+    PipeReader(PipeReader&) = delete;
+    PipeReader(PipeReader&&) = delete;
+    PipeReader& operator=(const PipeReader&) = delete;
+    PipeReader& operator=(const PipeReader&&) = delete;
+
+    void run() {
+        while (const char* linebuf = this->recv_message()) {
+            std::string msg(linebuf);
+            this->handle_message(msg);
+        }
+    }
+
+    const char* recv_message() {
+        return recv_msg_pipe_reader(&this->preader);
+    }
+
+    virtual void handle_message(std::string msg) {}
+
+private:
+    pipe_reader preader;
+};
+
+
+class PipeWriter {
+public:
+    PipeWriter(const char* pipe_path)
+    :pwriter(new_pipe_writer(pipe_path)) {}
+
+    virtual ~PipeWriter() {
+        close_pipe_writer(&this->pwriter);
+    }
+
+    PipeWriter(PipeReader&) = delete;
+    PipeWriter(PipeReader&&) = delete;
+    PipeWriter& operator=(const PipeReader&) = delete;
+    PipeWriter& operator=(const PipeReader&&) = delete;
+
+    void send_message(std::string msg) {
+        send_msg_pipe_writer(&this->pwriter, msg.c_str());
+    }
+
+private:
+    pipe_writer pwriter;
+};
+
+
+class PipeIO : public PipeReader, public PipeWriter {
+public:
+    PipeIO(const char* in_pipe_path, const char* out_pipe_path)
+    :PipeReader(in_pipe_path), PipeWriter(out_pipe_path) {}
+
+    PipeIO(PipeReader&) = delete;
+    PipeIO(PipeReader&&) = delete;
+    PipeIO& operator=(const PipeReader&) = delete;
+    PipeIO& operator=(const PipeReader&&) = delete;
+};
diff --git a/clients/c_cpp/test.cpp b/clients/c_cpp/test.cpp
new file mode 100644
index 0000000..4878391
--- /dev/null
+++ b/clients/c_cpp/test.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+#include <string>
+#include <fstream>
+#include "pipe_io.hpp"
+
+
+class EchoPipeIO : public PipeIO {
+    using PipeIO::PipeIO;
+
+    virtual void handle_message(std::string msg) override {
+        this->send_message(msg);
+    }
+};
+
+
+int main() {
+    EchoPipeIO echo_pipe_io("in", "out");
+    echo_pipe_io.run();
+}