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#include <cstdio>
#include <cinttypes>
#include "plugin-support.h"
#include <QCoreApplication>
#include <QFile>
#ifndef _WIN32
# include <dlfcn.h>
#endif
SelectedLibraries::~SelectedLibraries()
{
}
template<typename t>
static ptr<t> make_instance(ptr<DynamicLibrary> lib)
{
ptr<t> ret = nullptr;
if (lib && lib->Constructor)
ret = ptr<t>(reinterpret_cast<t*>(reinterpret_cast<CTOR_FUNPTR>(lib->Constructor)()));
qDebug() << "lib" << (lib ? lib->filename : "<null>") << "ptr" << (intptr_t)ret.get();
return ret;
}
SelectedLibraries::SelectedLibraries(QFrame* frame, dylib t, dylib p, dylib f) :
pTracker(nullptr),
pFilter(nullptr),
pProtocol(nullptr),
correct(false)
{
pTracker = make_instance<ITracker>(t);
pProtocol = make_instance<IProtocol>(p);
pFilter = make_instance<IFilter>(f);
if (!pTracker|| !pProtocol)
{
qDebug() << "load failure tracker" << (intptr_t)pTracker.get() << "protocol" << (intptr_t)pProtocol.get();
return;
}
if (pProtocol)
if(!pProtocol->correct())
{
qDebug() << "protocol load failure";
return;
}
pTracker->start_tracker(frame);
correct = true;
}
DynamicLibrary::DynamicLibrary(const QString& filename) :
Dialog(nullptr),
Constructor(nullptr),
Metadata(nullptr)
{
this->filename = filename;
#if defined(_WIN32)
QString fullPath = QCoreApplication::applicationDirPath() + "/" + this->filename;
handle = new QLibrary(fullPath);
struct _foo {
static bool die(QLibrary*& l, bool failp)
{
if (failp)
{
qDebug() << "failed" << l->errorString();
delete l;
l = nullptr;
}
return failp;
}
};
if (_foo::die(handle, !handle->load()))
return;
Dialog = (CTOR_FUNPTR) handle->resolve("GetDialog");
if (_foo::die(handle, !Dialog))
return;
Constructor = (CTOR_FUNPTR) handle->resolve("GetConstructor");
if (_foo::die(handle, !Constructor))
return;
Metadata = (METADATA_FUNPTR) handle->resolve("GetMetadata");
if (_foo::die(handle, !Metadata))
return;
#else
QByteArray latin1 = QFile::encodeName(filename);
handle = dlopen(latin1.constData(), RTLD_NOW |
# ifdef __linux
RTLD_DEEPBIND
# elif defined(__APPLE__)
RTLD_LOCAL|RTLD_FIRST|RTLD_NOW
# else
0
# endif
);
struct _foo {
static bool err(void*& handle)
{
const char* err = dlerror();
if (err)
{
fprintf(stderr, "Error, ignoring: %s\n", err);
fflush(stderr);
dlclose(handle);
handle = nullptr;
return true;
}
return false;
}
};
if (handle)
{
if (_foo::err(handle))
return;
Dialog = (CTOR_FUNPTR) dlsym(handle, "GetDialog");
if (_foo::err(handle))
return;
Constructor = (CTOR_FUNPTR) dlsym(handle, "GetConstructor");
if (_foo::err(handle))
return;
Metadata = (METADATA_FUNPTR) dlsym(handle, "GetMetadata");
if (_foo::err(handle))
return;
} else {
(void) _foo::err(handle);
}
#endif
}
DynamicLibrary::~DynamicLibrary()
{
#if defined(_WIN32)
handle->unload();
#else
if (handle)
(void) dlclose(handle);
#endif
}
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