83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
#if defined(DYNAMIC_MODULES) && defined(__PS2__)
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#include "backends/plugins/ps2/ps2-provider.h"
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#include "backends/plugins/dynamic-plugin.h"
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#include "common/fs.h"
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#include "backends/platform/ps2/ps2loader.h"
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class PS2Plugin : public DynamicPlugin {
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protected:
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void *_dlHandle;
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Common::String _filename;
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virtual VoidFunc findSymbol(const char *symbol) {
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void *func = dlsym(_dlHandle, symbol);
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if (!func)
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warning("Failed loading symbol '%s' from plugin '%s' (%s)", symbol, _filename.c_str(), dlerror());
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// FIXME HACK: This is a HACK to circumvent a clash between the ISO C++
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// standard and POSIX: ISO C++ disallows casting between function pointers
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// and data pointers, but dlsym always returns a void pointer. For details,
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// see e.g. <http://www.trilithium.com/johan/2004/12/problem-with-dlsym/>.
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assert(sizeof(VoidFunc) == sizeof(func));
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VoidFunc tmp;
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memcpy(&tmp, &func, sizeof(VoidFunc));
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return tmp;
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}
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public:
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PS2Plugin(const Common::String &filename)
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: _dlHandle(0), _filename(filename) {}
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~PS2Plugin() {
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if (_dlHandle) unloadPlugin();
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}
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bool loadPlugin() {
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assert(!_dlHandle);
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_dlHandle = dlopen(_filename.c_str(), RTLD_LAZY);
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if (!_dlHandle) {
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warning("Failed loading plugin '%s' (%s)", _filename.c_str(), dlerror());
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return false;
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}
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bool ret = DynamicPlugin::loadPlugin();
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if (ret)
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dlforgetsyms(_dlHandle);
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return ret;
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}
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void unloadPlugin() {
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DynamicPlugin::unloadPlugin();
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if (_dlHandle) {
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if (dlclose(_dlHandle) != 0)
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warning("Failed unloading plugin '%s' (%s)", _filename.c_str(), dlerror());
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_dlHandle = 0;
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}
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}
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};
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Plugin* PS2PluginProvider::createPlugin(const Common::FSNode &node) const {
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return new PS2Plugin(node.getPath());
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}
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bool PS2PluginProvider::isPluginFilename(const Common::FSNode &node) const {
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// Check the plugin suffix
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Common::String filename = node.getName();
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fprintf(stderr, "Testing name %s", filename.c_str());
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if (!filename.hasSuffix(".PLG") && !filename.hasSuffix(".plg")) {
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fprintf(stderr," fail.\n");
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return false;
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}
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fprintf(stderr," success!\n");
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return true;
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}
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#endif // defined(DYNAMIC_MODULES) && defined(__PS2__)
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