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stub.c
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stub.c
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#include <Python.h>
#include <dlfcn.h>
#include "emacs-module.h"
int emacs_module_init_py(void *runtime);
void PyInit_emacspy_module(void);
void init_interpreter_list(void);
int emacs_module_init(struct emacs_runtime *runtime) {
// https://www.gnu.org/software/emacs/manual/html_node/elisp/Module-Initialization.html#index-emacs_005fmodule_005finit-1
if ((long unsigned int)runtime->size < sizeof(*runtime)) {
fprintf(stderr, "%s\n",
"ERROR: emacs_module_init: emacspy was compiled for newer version of Emacs.");
return 1;
}
if (Py_IsInitialized()) {
fprintf(stderr, "%s\n",
"ERROR: emacs_module_init: emacspy is already loaded.");
return 2;
}
dlopen(LIBPYTHON_NAME, RTLD_LAZY | RTLD_GLOBAL);
PyConfig config;
PyStatus status;
PyConfig_InitPythonConfig(&config);
status = PyConfig_SetString(&config, &config.home, BASE_PREFIX);
if (PyStatus_Exception(status)) {
return 3;
}
status = Py_InitializeFromConfig(&config);
if (PyStatus_Exception(status)) {
return 4;
}
init_interpreter_list();
PyInit_emacspy_module();
int result = emacs_module_init_py(runtime);
PyEval_SaveThread();
return result;
}