void embed_init_python(void)
{
FENTER;
#ifndef PYTHON_SO_LIB
#error "Python version needs passing in with -DPYTHON_SO_VERSION=libpython<ver>.so"
#else
#define PY_SO_LIB xstr(PYTHON_SO_LIB)
#endif
// Don't initialise python if already running
if (gtstate)
return;
void * ret = utils_dyn_open(PY_SO_LIB);
if (!ret) {
fprintf(stderr, "Failed to find python lib\n");
}
Py_SetProgramName(progname);
Py_Initialize(); /* Initialize the interpreter */
PySys_SetArgvEx(1, argv, 0);
PyEval_InitThreads(); /* Create (and acquire) the interpreter lock */
/* Swap out and return current thread state and release the GIL */
gtstate = PyEval_SaveThread();
FEXIT;
}
void embed_init_python(void)
{
FENTER;
#ifndef PYTHON_SO_LIB
#error "Python version needs passing in with -DPYTHON_SO_VERSION=libpython<ver>.so"
#else
#define PY_SO_LIB xstr(PYTHON_SO_LIB)
#endif
// Don't initialise python if already running
if (gtstate)
return;
void * ret = utils_dyn_open(PY_SO_LIB);
if (!ret) {
fprintf(stderr, "Failed to find python lib\n");
}
Py_SetProgramName(progname);
Py_Initialize(); /* Initialize the interpreter */
PySys_SetArgvEx(1, argv, 0);
PyEval_InitThreads(); /* Create (and acquire) the interpreter lock */
/* Swap out and return current thread state and release the GIL */
gtstate = PyEval_SaveThread();
/* Before returning we check if the user wants pause the simulator thread
such that they can attach */
const char *pause = getenv("COCOTB_ATTACH");
if (pause) {
long sleep_time = strtol(pause, NULL, 10);
if (errno == ERANGE && (sleep_time == LONG_MAX || sleep_time == LONG_MIN)) {
fprintf(stderr, "COCOTB_ATTACH only needs to be set to ~30 seconds");
goto out;
}
if ((errno != 0 && sleep_time == 0) ||
(sleep_time <= 0)) {
fprintf(stderr, "COCOTB_ATTACH must be set to an integer base 10 or omitted");
goto out;
}
fprintf(stderr, "Waiting for %lu seconds - Attach to %d\n", sleep_time, getpid());
sleep(sleep_time);
}
out:
FEXIT;
}
void embed_init_python(void)
{
FENTER;
#ifndef PYTHON_SO_LIB
#error "Python version needs passing in with -DPYTHON_SO_VERSION=libpython<ver>.so"
#else
#define PY_SO_LIB xstr(PYTHON_SO_LIB)
#endif
// Don't initialise python if already running
if (gtstate)
return;
void * ret = utils_dyn_open(PY_SO_LIB);
if (!ret) {
fprintf(stderr, "Failed to find python lib\n");
}
to_python();
// reset Program Name (i.e. argv[0]) if we are in a virtual environment
char *venv_path_home = getenv("VIRTUAL_ENV");
if (venv_path_home) {
char venv_path[strlen(venv_path_home)+64];
strcpy(venv_path, venv_path_home);
strcat(venv_path, "/bin/python"); // this is universal in any VIRTUAL_ENV the python interpreter
#if PY_MAJOR_VERSION >= 3
static wchar_t venv_path_w[1024];
#if PY_MINOR_VERSION >= 5
// Python3.5 + provides the locale decoder
wcscpy(venv_path_w, Py_DecodeLocale(venv_path, NULL));
#else
// for lesser python versions, we just hope the user specified his locales correctly
setlocale (LC_ALL, "");
mbstowcs(venv_path_w, venv_path, sizeof(venv_path_w));
#endif
LOG_INFO("Using virtualenv at %ls.", venv_path_w);
Py_SetProgramName(venv_path_w);
#else
// Python2 case
LOG_INFO("Using virtualenv at %s.", venv_path);
Py_SetProgramName(venv_path);
#endif
} else {
LOG_INFO("Did not detect virtual environment. Using system-wide Python interpreter.");
}
Py_Initialize(); /* Initialize the interpreter */
PySys_SetArgvEx(1, argv, 0);
PyEval_InitThreads(); /* Create (and acquire) the interpreter lock */
/* Swap out and return current thread state and release the GIL */
gtstate = PyEval_SaveThread();
to_simulator();
/* Before returning we check if the user wants pause the simulator thread
such that they can attach */
const char *pause = getenv("COCOTB_ATTACH");
if (pause) {
long sleep_time = strtol(pause, NULL, 10);
if (errno == ERANGE && (sleep_time == LONG_MAX || sleep_time == LONG_MIN)) {
fprintf(stderr, "COCOTB_ATTACH only needs to be set to ~30 seconds");
goto out;
}
if ((errno != 0 && sleep_time == 0) ||
(sleep_time <= 0)) {
fprintf(stderr, "COCOTB_ATTACH must be set to an integer base 10 or omitted");
goto out;
}
fprintf(stderr, "Waiting for %lu seconds - Attach to %d\n", sleep_time, getpid());
sleep(sleep_time);
}
out:
FEXIT;
}
