add dll class

bin/jwrapper.xml

@@ -19,6 +19,7 @@
  <classpaths>
  <path>cp1</path>
  <path>cp2</path>
+ <path>${cwd}/../lib</path>
  <jars>cp3</jars>
  </classpaths>
 

src/DLL.cpp

@@ -0,0 +1,57 @@
+/**
+ * Copyright 2012 Wangxr, [email protected]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "DLL.h"
+#include <assert.h>
+
+DLL::DLL(const char* file) : dll(NULL)
+{
+ assert(NULL != file);
+
+#ifdef
+ this->dll = ::LoadLibraryA(file);
+#else
+ this->dll = dlopen(file, RTLD_NOW + RTLD_GLOBAL);
+ if(NULL == this->dll) {
+ fprintf(stderr, "dllopen error %s\n", dlerror());
+ }
+#endif
+}
+
+DLL::~DLL()
+{
+ if(NULL != this->dll) {
+#ifdef
+ ::FreeLibrary(this->dll);
+#else
+ ::dlclose(this->dll);
+#endif
+ }
+}
+
+void* DLL::getFunction(const char* functionName)
+{
+ assert(NULL != functionName);
+
+ if(NULL != this->dll) {
+#ifdef WIN32
+ return (void*)::GetProcAddress(this->dll, functionName);
+#else
+ return (void*)::dlsym(this->dll, functionName);
+#endif
+ }
+
+ return NULL;
+}

src/DLL.h

@@ -0,0 +1,37 @@
+/**
+ * Copyright 2012 Wangxr, [email protected]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef _JW_DLL_H__
+#define _JW_DLL_H__
+#ifdef WIN32
+#include <Windows.h>
+#include <WinBase.h>
+typedef HINSTANCE DLL_T;
+#else
+#include <dlfcn.h>
+typedef void* DLL_T;
+#endif
+
+class DLL
+{
+ DLL_T dll;
+
+public:
+ DLL(const char* file);
+ ~DLL();
+ void* getFunction(const char* functionName);
+};
+
+#endif // end of _JW_DLL_H__