Renamed internal common to config

3 files changed, 52 insertions, 0 deletions

diff --git a/config/CMakeLists.txt b/config/CMakeLists.txt
new file mode 100644
index 0000000..7fbe117
--- /dev/null
+++ b/config/CMakeLists.txt
@@ -0,0 +1,7 @@
+project(config CXX)
+add_library(${PROJECT_NAME} STATIC
+	src/config.cpp
+	)
+target_include_directories(${PROJECT_NAME}
+	PUBLIC include
+	)
diff --git a/config/include/hwd/config.h b/config/include/hwd/config.h
new file mode 100644
index 0000000..7f42cb5
--- /dev/null
+++ b/config/include/hwd/config.h
@@ -0,0 +1,18 @@
+#pragma once
+
+namespace hwd
+{
+namespace config
+{
+
+constexpr int default_port = 4236;
+constexpr const char * default_host = "127.0.0.1";
+
+constexpr const char * port_variable = "HWDPORT";
+constexpr const char * host_variable = "HWDHOST";
+
+int port();
+const char * host();
+
+}  // namespace config
+}  // namespace hwd
diff --git a/config/src/config.cpp b/config/src/config.cpp
new file mode 100644
index 0000000..8895a24
--- /dev/null
+++ b/config/src/config.cpp
@@ -0,0 +1,27 @@
+#include "hwd/config.h"
+
+#include <cstdlib>
+
+
+namespace hwd
+{
+namespace config
+{
+
+int port()
+{
+	if (const char * from_env = std::getenv(port_variable))
+		if (int port_number = std::atoi(from_env))
+			return port_number;
+	return default_port;
+}
+
+const char * host()
+{
+	if (const char * from_env = std::getenv(host_variable))
+		return from_env;
+	return default_host;
+}
+
+}  // namespace config
+}  // namespace hwd