diff options
Diffstat (limited to 'Python/pystate.c')
| -rw-r--r-- | Python/pystate.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/Python/pystate.c b/Python/pystate.c index 3c655bf..28606e4 100644 --- a/Python/pystate.c +++ b/Python/pystate.c @@ -3,7 +3,8 @@ #include "Python.h" #include "pycore_ceval.h" -#include "pycore_code.h" // stats +#include "pycore_code.h" // stats +#include "pycore_dtoa.h" // _dtoa_state_INIT() #include "pycore_frame.h" #include "pycore_initconfig.h" #include "pycore_object.h" // _PyType_InitCache() @@ -618,6 +619,18 @@ free_interpreter(PyInterpreterState *interp) e.g. by PyMem_RawCalloc() or memset(), or otherwise pre-initialized. The runtime state is not manipulated. Instead it is assumed that the interpreter is getting added to the runtime. + + Note that the main interpreter was statically initialized as part + of the runtime and most state is already set properly. That leaves + a small number of fields to initialize dynamically, as well as some + that are initialized lazily. + + For subinterpreters we memcpy() the main interpreter in + PyInterpreterState_New(), leaving it in the same mostly-initialized + state. The only difference is that the interpreter has some + self-referential state that is statically initializexd to the + main interpreter. We fix those fields here, in addition + to the other dynamically initialized fields. */ static void @@ -645,6 +658,11 @@ init_interpreter(PyInterpreterState *interp, PyConfig_InitPythonConfig(&interp->config); _PyType_InitCache(interp); + if (interp != &runtime->_main_interpreter) { + /* Fix the self-referential, statically initialized fields. */ + interp->dtoa = (struct _dtoa_state)_dtoa_state_INIT(interp); + } + interp->_initialized = 1; } |