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153 lines
3.3 KiB
C++
153 lines
3.3 KiB
C++
//
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// SharedLibrary_UNIX.cpp
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//
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// $Id: //poco/1.4/Foundation/src/SharedLibrary_UNIX.cpp#3 $
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//
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// Library: Foundation
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// Package: SharedLibrary
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// Module: SharedLibrary
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/SharedLibrary_UNIX.h"
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#include "Poco/Exception.h"
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#include <dlfcn.h>
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// Note: cygwin is missing RTLD_LOCAL, set it to 0
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#if defined(__CYGWIN__) && !defined(RTLD_LOCAL)
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#define RTLD_LOCAL 0
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#endif
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namespace Poco {
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FastMutex SharedLibraryImpl::_mutex;
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SharedLibraryImpl::SharedLibraryImpl()
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{
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_handle = 0;
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}
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SharedLibraryImpl::~SharedLibraryImpl()
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{
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}
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void SharedLibraryImpl::loadImpl(const std::string& path, int flags)
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{
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FastMutex::ScopedLock lock(_mutex);
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if (_handle) throw LibraryAlreadyLoadedException(path);
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int realFlags = RTLD_LAZY;
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if (flags & SHLIB_LOCAL_IMPL)
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realFlags |= RTLD_LOCAL;
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else
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realFlags |= RTLD_GLOBAL;
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_handle = dlopen(path.c_str(), realFlags);
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if (!_handle)
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{
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const char* err = dlerror();
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throw LibraryLoadException(err ? std::string(err) : path);
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}
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_path = path;
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}
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void SharedLibraryImpl::unloadImpl()
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{
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FastMutex::ScopedLock lock(_mutex);
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if (_handle)
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{
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dlclose(_handle);
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_handle = 0;
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}
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}
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bool SharedLibraryImpl::isLoadedImpl() const
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{
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return _handle != 0;
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}
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void* SharedLibraryImpl::findSymbolImpl(const std::string& name)
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{
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FastMutex::ScopedLock lock(_mutex);
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void* result = 0;
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if (_handle)
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{
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result = dlsym(_handle, name.c_str());
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}
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return result;
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}
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const std::string& SharedLibraryImpl::getPathImpl() const
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{
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return _path;
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}
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std::string SharedLibraryImpl::suffixImpl()
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{
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#if defined(__APPLE__)
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#if defined(_DEBUG)
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return "d.dylib";
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#else
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return ".dylib";
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#endif
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#elif defined(hpux) || defined(_hpux)
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#if defined(_DEBUG)
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return "d.sl";
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#else
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return ".sl";
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#endif
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#elif defined(__CYGWIN__)
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#if defined(_DEBUG)
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return "d.dll";
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#else
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return ".dll";
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#endif
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#else
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#if defined(_DEBUG)
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return "d.so";
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#else
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return ".so";
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#endif
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#endif
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}
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} // namespace Poco
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