Files
yaze/src/ext/extension.cc
2024-08-08 22:40:09 -04:00

89 lines
2.2 KiB
C++

#include "extension.h"
#include <Python.h>
#include <dlfcn.h>
#include <iostream>
static void* handle = nullptr;
static yaze_extension* extension = nullptr;
yaze_extension* get_yaze_extension() { return extension; }
void yaze_load_c_extension(const char* extension_path) {
handle = dlopen(extension_path, RTLD_LAZY);
if (!handle) {
std::cerr << "Cannot open extension: " << dlerror() << std::endl;
return;
}
dlerror(); // Clear any existing error
// Load the symbol to retrieve the extension
auto get_extension = reinterpret_cast<yaze_extension* (*)()>(
dlsym(handle, "get_yaze_extension"));
const char* dlsym_error = dlerror();
if (dlsym_error) {
std::cerr << "Cannot load symbol 'get_yaze_extension': " << dlsym_error
<< std::endl;
dlclose(handle);
return;
}
extension = get_extension();
if (extension && extension->initialize) {
extension->initialize();
} else {
std::cerr << "Failed to initialize the extension." << std::endl;
dlclose(handle);
handle = nullptr;
extension = nullptr;
}
}
void yaze_load_py_extension(const char* script_path) {
Py_Initialize();
FILE* fp = fopen(script_path, "r");
if (fp) {
PyRun_SimpleFile(fp, script_path);
fclose(fp);
} else {
std::cerr << "Cannot open Python script: " << script_path << std::endl;
return;
}
PyObject* pModule = PyImport_AddModule("__main__");
PyObject* pFunc = PyObject_GetAttrString(pModule, "get_yaze_extension");
if (pFunc && PyCallable_Check(pFunc)) {
PyObject* pExtension = PyObject_CallObject(pFunc, nullptr);
if (pExtension) {
extension =
reinterpret_cast<yaze_extension*>(PyLong_AsVoidPtr(pExtension));
if (extension && extension->initialize) {
extension->initialize();
}
} else {
std::cerr << "Failed to get extension from Python script." << std::endl;
}
Py_XDECREF(pExtension);
} else {
std::cerr
<< "Python function 'get_yaze_extension' not found or not callable."
<< std::endl;
}
Py_XDECREF(pFunc);
Py_Finalize();
}
void yaze_cleanup_extension() {
if (extension && extension->cleanup) {
extension->cleanup();
}
if (handle) {
dlclose(handle);
handle = nullptr;
extension = nullptr;
}
}