From 0e22414d042207269f916298b236f1be341ddeea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Fri, 15 Jul 2022 00:39:07 +0200
Subject: Add wrapper for LoadLibrary, FreeLibrary.

---
 c/common.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'c/common.cpp')

diff --git a/c/common.cpp b/c/common.cpp
index 63adb53..93f97eb 100644
--- a/c/common.cpp
+++ b/c/common.cpp
@@ -1,3 +1,4 @@
+#include <memory>
 #include <windows.h>
 #include <SWI-Prolog.h>
 
@@ -27,3 +28,28 @@ TszFromSz(const char *sz, int iCp)
 
 	return tsz;
 }
+
+Library::Library(const TCHAR *tszLibrary)
+{
+	m_hModule = LoadLibrary(tszLibrary);
+}
+
+Library::~Library()
+{
+	if (m_hModule)
+		FreeLibrary(m_hModule);
+}
+
+FARPROC
+Library::GetProcAddress(const char *szProc)
+{
+	return m_hModule? ::GetProcAddress(m_hModule, szProc): NULL;
+}
+
+std::unique_ptr<Library>
+Library::Load(const TCHAR *tszLibrary)
+{
+	auto upLib = std::make_unique<Library>(tszLibrary);
+	if (!upLib->m_hModule) upLib = nullptr;
+	return upLib;
+}
-- 
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