new trunk (base for 1.5)

windows build only

Foundation/src/SharedLibrary_VX.cpp

@@ -0,0 +1,157 @@
+//
+// SharedLibrary_VX.cpp
+//
+// $Id: //poco/1.4/Foundation/src/SharedLibrary_VX.cpp#2 $
+//
+// Library: Foundation
+// Package: SharedLibrary
+// Module:  SharedLibrary
+//
+// Copyright (c) 2004-2011, 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.
+//
+
+
+#include "Poco/SharedLibrary_VX.h"
+#include "Poco/Exception.h"
+#include "Poco/Format.h"
+#include <loadLib.h>
+#include <unldLib.h>
+#include <ioLib.h>
+#include <symLib.h>
+#include <sysSymTbl.h>
+#include <cstring>
+
+
+struct SymLookup
+{
+	const char* name;
+	int         group;
+	void*       addr;
+};
+
+
+extern "C" bool lookupFunc(char* name, int val, SYM_TYPE type, int arg, UINT16 group)
+{
+	SymLookup* symLookup = reinterpret_cast<SymLookup*>(arg);
+	if (group == symLookup->group && std::strcmp(name, symLookup->name) == 0)
+	{
+		symLookup->addr = reinterpret_cast<void*>(val);
+		return TRUE;
+	}
+	else return FALSE;
+}
+
+
+namespace Poco {
+
+
+FastMutex SharedLibraryImpl::_mutex;
+
+
+SharedLibraryImpl::SharedLibraryImpl():
+	_moduleId(0)
+{
+}
+
+
+SharedLibraryImpl::~SharedLibraryImpl()
+{
+}
+
+
+void SharedLibraryImpl::loadImpl(const std::string& path, int /*flags*/)
+{
+	FastMutex::ScopedLock lock(_mutex);
+
+	if (_moduleId) throw LibraryAlreadyLoadedException(path);
+	int fd = open(const_cast<char*>(path.c_str()), O_RDONLY, 0);
+	if (fd)
+	{
+		_moduleId = loadModule(fd, LOAD_GLOBAL_SYMBOLS);
+		if (!_moduleId)
+		{
+			int err = errno;
+			close(fd);
+			throw LibraryLoadException(Poco::format("error %d", err));
+		}
+	}
+	else
+	{
+		int err = errno;
+		throw LibraryLoadException(Poco::format("cannot open library (error %d)", err));
+	}
+	_path = path;
+}
+
+
+void SharedLibraryImpl::unloadImpl()
+{
+	FastMutex::ScopedLock lock(_mutex);
+
+	if (_moduleId)
+	{
+		unldByModuleId(_moduleId, 0);
+		_moduleId = 0;
+	}
+}
+
+
+bool SharedLibraryImpl::isLoadedImpl() const
+{
+	return _moduleId != 0; 
+}
+
+
+void* SharedLibraryImpl::findSymbolImpl(const std::string& name)
+{
+	poco_assert (_moduleId != 0);
+	
+	FastMutex::ScopedLock lock(_mutex);
+
+	MODULE_INFO mi;
+	if (!moduleInfoGet(_moduleId, &mi)) return 0;
+	SymLookup symLookup;
+	symLookup.name  = name.c_str();
+	symLookup.group = mi.group;
+	symLookup.addr  = 0;
+	symEach(sysSymTbl, reinterpret_cast<FUNCPTR>(lookupFunc), reinterpret_cast<int>(&symLookup));
+	return symLookup.addr;
+}
+
+
+const std::string& SharedLibraryImpl::getPathImpl() const
+{
+	return _path;
+}
+
+
+std::string SharedLibraryImpl::suffixImpl()
+{
+	return ".out";
+}
+
+
+} // namespace Poco