Mercurial > hg > orthanc
view Plugins/Engine/SharedLibrary.cpp @ 2259:8233c92b8226
added hgignore
author | amazy |
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date | Thu, 02 Feb 2017 21:12:16 +0100 |
parents | a3a65de1840f |
children | ae50eccd41b7 |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017 Osimis, Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * In addition, as a special exception, the copyright holders of this * program give permission to link the code of its release with the * OpenSSL project's "OpenSSL" library (or with modified versions of it * that use the same license as the "OpenSSL" library), and distribute * the linked executables. You must obey the GNU General Public License * in all respects for all of the code used other than "OpenSSL". If you * modify file(s) with this exception, you may extend this exception to * your version of the file(s), but you are not obligated to do so. If * you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files * in the program, then also delete it here. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "../../OrthancServer/PrecompiledHeadersServer.h" #include "SharedLibrary.h" #if ORTHANC_ENABLE_PLUGINS != 1 #error The plugin support is disabled #endif #include "../../Core/Logging.h" #include "../../Core/Toolbox.h" #include <boost/filesystem.hpp> #if defined(_WIN32) #include <windows.h> #elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) #include <dlfcn.h> #else #error Support your platform here #endif namespace Orthanc { SharedLibrary::SharedLibrary(const std::string& path) : path_(path), handle_(NULL) { #if defined(_WIN32) handle_ = ::LoadLibraryA(path_.c_str()); if (handle_ == NULL) { LOG(ERROR) << "LoadLibrary(" << path_ << ") failed: Error " << ::GetLastError(); throw OrthancException(ErrorCode_SharedLibrary); } #elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) handle_ = ::dlopen(path_.c_str(), RTLD_NOW); if (handle_ == NULL) { std::string explanation; const char *tmp = ::dlerror(); if (tmp) { explanation = ": Error " + std::string(tmp); } LOG(ERROR) << "dlopen(" << path_ << ") failed" << explanation; throw OrthancException(ErrorCode_SharedLibrary); } #else #error Support your platform here #endif } SharedLibrary::~SharedLibrary() { if (handle_) { #if defined(_WIN32) ::FreeLibrary((HMODULE)handle_); #elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) ::dlclose(handle_); #else #error Support your platform here #endif } } SharedLibrary::FunctionPointer SharedLibrary::GetFunctionInternal(const std::string& name) { if (!handle_) { throw OrthancException(ErrorCode_InternalError); } #if defined(_WIN32) return ::GetProcAddress((HMODULE)handle_, name.c_str()); #elif defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) return ::dlsym(handle_, name.c_str()); #else #error Support your platform here #endif } SharedLibrary::FunctionPointer SharedLibrary::GetFunction(const std::string& name) { SharedLibrary::FunctionPointer result = GetFunctionInternal(name); if (result == NULL) { LOG(ERROR) << "Shared library does not expose function \"" << name << "\""; throw OrthancException(ErrorCode_SharedLibrary); } else { return result; } } bool SharedLibrary::HasFunction(const std::string& name) { return GetFunctionInternal(name) != NULL; } }