diff options
Diffstat (limited to 'sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/core/src/tuscany/sca/util/Library.cpp')
-rw-r--r-- | sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/core/src/tuscany/sca/util/Library.cpp | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/core/src/tuscany/sca/util/Library.cpp b/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/core/src/tuscany/sca/util/Library.cpp new file mode 100644 index 0000000000..a9ff01b293 --- /dev/null +++ b/sca-cpp/tags/cpp-1.0-incubating-M2-final/sca/runtime/core/src/tuscany/sca/util/Library.cpp @@ -0,0 +1,160 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 + * + * http://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. + */ + +/* $Rev$ $Date$ */ + +#if defined(WIN32) || defined (_WINDOWS) +#pragma warning(disable: 4786) +#endif + +#include "tuscany/sca/util/Library.h" +#include "tuscany/sca/util/Utils.h" +#include "tuscany/sca/util/Exceptions.h" +#include "tuscany/sca/util/Logging.h" + +namespace tuscany +{ + namespace sca + { + Library::Library() + : hDLL(NULL) + { + } + + Library::Library(const string& libraryName) + : name(libraryName), hDLL(NULL) + { + LOGINFO_1(3, "Library::construcor : %s", name.c_str()); + load(); + } + + Library::Library(const Library& lib) + : name(lib.name), hDLL(NULL) + { + LOGINFO_1(3, "Library::copy constructor : %s", name.c_str()); + if (lib.hDLL) + { + load(); + } + } + + Library& Library::operator=(const Library& lib) + { + LOGINFO_1(3, "Library::operator= : %s", name.c_str()); + if (&lib != this) + { + unload(); + name = lib.name; + load(); + } + return *this; + } + + Library::~Library() + { + LOGINFO_1(3, "Library::destructor: %s", name.c_str()); + unload(); + } + + + void Library::load() + { + LOGINFO_1(3, "Library::load : %s", name.c_str()); + string msg; +#if defined(WIN32) || defined (_WINDOWS) + int l = name.length(); + string dllName; + if (l>=4 && name.substr(l-4, 4)==".dll") + { + dllName = name; + } + else + { + dllName = name+".dll"; + } + hDLL = LoadLibrary(dllName.c_str()); + if (hDLL == NULL) + { + msg = "Unable to load library: " + dllName; + } +#else + int l = name.length(); + string soName; + if (l>=3 && name.substr(l-3, 3)==".so") + { + soName = name; + } + else + { + int s = name.rfind("/"); + if (s == name.length()) + { + soName = name + ".so"; + } + else + { + s++; + soName = name.substr(0, s) + "lib" + name.substr(s, name.length()-s) + ".so"; + } + } + hDLL = dlopen(soName.c_str(), RTLD_NOW); + if (hDLL == NULL) + { + msg = "Unable to load library: " + soName + ": " + dlerror(); + } +#endif + if (hDLL == NULL) + { + LOGERROR(1, msg.c_str()); + throw SystemConfigurationException(msg.c_str()); + } + } + + void Library::unload() + { + if (hDLL != NULL) + { + LOGINFO_1(3, "Library::unload : %s", name.c_str()); +#if defined(WIN32) || defined (_WINDOWS) + FreeLibrary(hDLL); +#else + dlclose(hDLL); +#endif + hDLL = NULL; + } + } + + void* Library::getSymbol(const string& symbol) + { + LOGINFO_1(3, "Library::getSymbol : %s", symbol.c_str()); + if (!hDLL) + { + return 0; + } +#if defined(WIN32) || defined (_WINDOWS) + return GetProcAddress(hDLL, symbol.c_str()); +#else + return dlsym(hDLL, symbol.c_str()); +#endif + } + + } // End namespace sca +} // End namespace tuscany + + |