7 files changed, 168 insertions, 0 deletions
diff --git a/utils/libtest/CMakeLists.txt b/utils/libtest/CMakeLists.txt
new file mode 100644
index 0000000..8c64ba1
--- /dev/null
+++ b/utils/libtest/CMakeLists.txt
@@ -0,0 +1,9 @@
+file(GLOB_RECURSE libtest_headers "include/*.hpp")
+file(GLOB libtest_sources "src/*.cpp")
+add_library(libtest
+    ${libtest_sources}
+    ${libtest_headers})
+target_link_libraries(libtest libservice)
+target_include_directories(libtest PUBLIC include/)
+
+add_subdirectory(utils)
diff --git a/utils/libtest/README.md b/utils/libtest/README.md
new file mode 100644
index 0000000..dae0cfe
--- /dev/null
+++ b/utils/libtest/README.md
@@ -0,0 +1,37 @@
+# libtest
+
+[test](../../src/test) usage examples.
+
+## Usage
+
+### libtest.lib
+
+Wraps `test`'s virtual device interface using [libservice](../libservice).
+Include the headers by `#include`ing `libtest/all.hpp`, which includes all the
+other header files.
+
+### exchange_ints.exe
+
+    Usage: exchange_ints.exe N
+
+Parses a given `unsigned int` and exchanges it with the value stored in
+driver's memory.
+Usage example (assuming `test` is already loaded):
+
+    > exchange_ints.exe 1
+    42
+
+    > exchange_ints.exe 32
+    1
+
+    > exchange_ints.exe 100500
+    32
+
+## Building
+
+See [Building](../README.md#building).
+
+## Licensing
+
+This project is licensed under the terms of the MIT License.
+See [Licensing](../../README.md#licensing) for details.
diff --git a/utils/libtest/include/libtest/all.hpp b/utils/libtest/include/libtest/all.hpp
new file mode 100644
index 0000000..899fc3d
--- /dev/null
+++ b/utils/libtest/include/libtest/all.hpp
@@ -0,0 +1,11 @@
+/**
+ * \file
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ *            See LICENSE.txt for details.
+ */
+
+#pragma once
+
+#include "device.hpp"
diff --git a/utils/libtest/include/libtest/device.hpp b/utils/libtest/include/libtest/device.hpp
new file mode 100644
index 0000000..365088d
--- /dev/null
+++ b/utils/libtest/include/libtest/device.hpp
@@ -0,0 +1,22 @@
+/**
+ * \file
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ *            See LICENSE.txt for details.
+ */
+
+#pragma once
+
+#include "libservice/all.hpp"
+
+namespace libtest
+{
+    class Device : libservice::Device
+    {
+    public:
+        Device();
+
+        unsigned int exchange_ints(unsigned int) const;
+    };
+}
diff --git a/utils/libtest/src/device.cpp b/utils/libtest/src/device.cpp
new file mode 100644
index 0000000..4093c04
--- /dev/null
+++ b/utils/libtest/src/device.cpp
@@ -0,0 +1,40 @@
+/**
+ * \file
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ *            See LICENSE.txt for details.
+ */
+
+#include "libtest/all.hpp"
+
+#include "libservice/all.hpp"
+
+#include <Windows.h>
+
+namespace libtest
+{
+    namespace
+    {
+        const char* const device_path = "\\\\.\\test_device1";
+        const auto exchange_ints_ctl_code = CTL_CODE(0x8001, 0x800, METHOD_BUFFERED, FILE_ANY_ACCESS);
+    }
+
+    Device::Device()
+        : libservice::Device(libservice::Device::open(device_path))
+    { }
+
+    unsigned int Device::exchange_ints(unsigned int src) const
+    {
+        unsigned int dest;
+
+        send_control_code(
+            exchange_ints_ctl_code,
+            &src,
+            sizeof(src),
+            &dest,
+            sizeof(dest));
+
+        return dest;
+    }
+}
diff --git a/utils/libtest/utils/CMakeLists.txt b/utils/libtest/utils/CMakeLists.txt
new file mode 100644
index 0000000..9b22ab2
--- /dev/null
+++ b/utils/libtest/utils/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_executable(exchange_ints exchange_ints.cpp)
+target_link_libraries(exchange_ints libtest)
diff --git a/utils/libtest/utils/exchange_ints.cpp b/utils/libtest/utils/exchange_ints.cpp
new file mode 100644
index 0000000..0f54879
--- /dev/null
+++ b/utils/libtest/utils/exchange_ints.cpp
@@ -0,0 +1,47 @@
+/**
+ * \file
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ *            See LICENSE.txt for details.
+ */
+
+#include "libtest/all.hpp"
+
+#include <exception>
+#include <iostream>
+#include <sstream>
+#include <string>
+
+namespace
+{
+    bool parse_int(unsigned int& dest, const std::string& src)
+    {
+        std::istringstream iss(src);
+        char c;
+        return iss >> dest && !iss.get(c);
+    }
+}
+
+int main(int argc, char* argv[])
+{
+    try
+    {
+        unsigned int src;
+
+        if (argc != 2 || !parse_int(src, argv[1]))
+        {
+            std::cout << "Usage: " << argv[0] << " N\n";
+            return 1;
+        }
+
+        std::cout << libtest::Device().exchange_ints(src) << "\n";
+    }
+    catch (const std::exception& e)
+    {
+        std::cerr << e.what() << "\n";
+        return 1;
+    }
+
+    return 0;
+}