sources from main repository

NetSSL_OpenSSL/include/Poco/Net/SSLInitializer.h

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+//
+// SSLInitializer.h
+//
+// $Id: //poco/1.3/NetSSL_OpenSSL/include/Poco/Net/SSLInitializer.h#1 $
+//
+// Library: NetSSL_OpenSSL
+// Package: SSLCore
+// Module:  SSLInitializer
+//
+// Definition of the SSLInitializer class.
+//
+// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#ifndef NetSSL_SSLInitializer_INCLUDED
+#define NetSSL_SSLInitializer_INCLUDED
+
+
+#include "Poco/Net/NetSSL.h"
+#include "Poco/Mutex.h"
+
+
+extern "C"
+{
+	struct CRYPTO_dynlock_value
+	{
+		Poco::FastMutex _mutex;
+	};
+}
+
+
+namespace Poco {
+namespace Net {
+
+
+class NetSSL_API SSLInitializer
+	/// Initalizes the OpenSSL library.
+	///
+	/// The class ensures the earliest initialization and the
+	/// latest shutdown of the OpenSSL library.
+{
+public:
+	SSLInitializer();
+		/// Automatically initialize OpenSSL on startup.
+		
+	~SSLInitializer();
+		/// Automatically shut down OpenSSL on exit.
+	
+	static void initialize();
+		/// Initializes the OpenSSL machinery.
+
+	static void uninitialize();
+		/// Shuts down the OpenSSL machinery.
+
+protected:
+	enum
+	{
+		SEEDSIZE = 256
+	};
+	
+	// OpenSSL multithreading support
+	static void lock(int mode, int n, const char* file, int line);
+	static unsigned long id();
+	static struct CRYPTO_dynlock_value* dynlockCreate(const char* file, int line);
+	static void dynlock(int mode, struct CRYPTO_dynlock_value* lock, const char* file, int line);
+	static void dynlockDestroy(struct CRYPTO_dynlock_value* lock, const char* file, int line);
+
+private:
+	static Poco::FastMutex* _mutexes;
+	static int _rc;
+};
+
+
+} } // namespace Poco::Net
+
+
+#endif // NetSSL_SSLInitializer_INCLUDED