/*
* Copyright ( c ) 2020 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation . Oracle designates this
* particular file as subject to the " Classpath " exception as provided
* by Oracle in the LICENSE file that accompanied this code .
*
* This code 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
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
#include "Dll.h"
#include "SysInfo.h"
#include "FileUtils.h"
#include "WinSysInfo.h"
#include "WinErrorHandling.h"
namespace {
Dll::Handle loadLibrary(const std::wstring& path) {
HMODULE h = LoadLibraryW(path.c_str());
if (!h) {
JP_THROW(SysError(tstrings::any() << "LoadLibraryW(" <<
path << ") failed" , LoadLibraryW));
}
return Dll::Handle(h);
}
} // namesace
Dll::Dll(const tstrings::any &libPath): thePath(libPath.tstr()),
handle(loadLibrary(libPath.wstr())) {
}
Dll::Dll(const tstrings::any &libName, const System &tag):
thePath(FileUtils::combinePath(SysInfo::getSystem32Dir(),
libName.tstr())),
handle(loadLibrary(tstrings::any(thePath).wstr())) {
}
Dll::Dll(const Dll& other): thePath(other.thePath) {
HMODULE h = NULL;
if (!GetModuleHandleExW(0 , thePath.c_str(), &h)) {
JP_THROW(SysError(tstrings::any() << "GetModuleHandleExW("
<< thePath << ") failed" , GetModuleHandleExW));
}
handle = Handle(h);
}
void * Dll::getFunction(const std::string &name, bool throwIfNotFound) const {
void *ptr = GetProcAddress(handle.get(), name.c_str());
if (throwIfNotFound && ptr == NULL) {
JP_THROW(SysError(tstrings::any() << "GetProcAddress(" << thePath
<< ", " << name << ") failed" , GetProcAddress));
}
return ptr;
}
/*static*/
void Dll::freeLibrary(HMODULE h) {
if (h) {
FreeLibrary(h);
}
}
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