| |
| /* System module */ |
| |
| /* |
| Various bits of information used by the interpreter are collected in |
| module 'sys'. |
| Function member: |
| - exit(sts): raise SystemExit |
| Data members: |
| - stdin, stdout, stderr: standard file objects |
| - modules: the table of modules (dictionary) |
| - path: module search path (list of strings) |
| - argv: script arguments (list of strings) |
| - ps1, ps2: optional primary and secondary prompts (strings) |
| */ |
| |
| #include "Python.h" |
| #include "code.h" |
| #include "frameobject.h" |
| #include "pythread.h" |
| |
| #include "osdefs.h" |
| #include <locale.h> |
| |
| #ifdef MS_WINDOWS |
| #define WIN32_LEAN_AND_MEAN |
| #include <windows.h> |
| #endif /* MS_WINDOWS */ |
| |
| #ifdef MS_COREDLL |
| extern void *PyWin_DLLhModule; |
| /* A string loaded from the DLL at startup: */ |
| extern const char *PyWin_DLLVersionString; |
| #endif |
| |
| #ifdef HAVE_LANGINFO_H |
| #include <langinfo.h> |
| #endif |
| |
| _Py_IDENTIFIER(_); |
| _Py_IDENTIFIER(__sizeof__); |
| _Py_IDENTIFIER(buffer); |
| _Py_IDENTIFIER(builtins); |
| _Py_IDENTIFIER(encoding); |
| _Py_IDENTIFIER(path); |
| _Py_IDENTIFIER(stdout); |
| _Py_IDENTIFIER(stderr); |
| _Py_IDENTIFIER(write); |
| |
| PyObject * |
| _PySys_GetObjectId(_Py_Identifier *key) |
| { |
| PyThreadState *tstate = PyThreadState_GET(); |
| PyObject *sd = tstate->interp->sysdict; |
| if (sd == NULL) |
| return NULL; |
| return _PyDict_GetItemId(sd, key); |
| } |
| |
| PyObject * |
| PySys_GetObject(const char *name) |
| { |
| PyThreadState *tstate = PyThreadState_GET(); |
| PyObject *sd = tstate->interp->sysdict; |
| if (sd == NULL) |
| return NULL; |
| return PyDict_GetItemString(sd, name); |
| } |
| |
| int |
| _PySys_SetObjectId(_Py_Identifier *key, PyObject *v) |
| { |
| PyThreadState *tstate = PyThreadState_GET(); |
| PyObject *sd = tstate->interp->sysdict; |
| if (v == NULL) { |
| if (_PyDict_GetItemId(sd, key) == NULL) |
| return 0; |
| else |
| return _PyDict_DelItemId(sd, key); |
| } |
| else |
| return _PyDict_SetItemId(sd, key, v); |
| } |
| |
| int |
| PySys_SetObject(const char *name, PyObject *v) |
| { |
| PyThreadState *tstate = PyThreadState_GET(); |
| PyObject *sd = tstate->interp->sysdict; |
| if (v == NULL) { |
| if (PyDict_GetItemString(sd, name) == NULL) |
| return 0; |
| else |
| return PyDict_DelItemString(sd, name); |
| } |
| else |
| return PyDict_SetItemString(sd, name, v); |
| } |
| |
| /* Write repr(o) to sys.stdout using sys.stdout.encoding and 'backslashreplace' |
| error handler. If sys.stdout has a buffer attribute, use |
| sys.stdout.buffer.write(encoded), otherwise redecode the string and use |
| sys.stdout.write(redecoded). |
| |
| Helper function for sys_displayhook(). */ |
| static int |
| sys_displayhook_unencodable(PyObject *outf, PyObject *o) |
| { |
| PyObject *stdout_encoding = NULL; |
| PyObject *encoded, *escaped_str, *repr_str, *buffer, *result; |
| char *stdout_encoding_str; |
| int ret; |
| |
| stdout_encoding = _PyObject_GetAttrId(outf, &PyId_encoding); |
| if (stdout_encoding == NULL) |
| goto error; |
| stdout_encoding_str = _PyUnicode_AsString(stdout_encoding); |
| if (stdout_encoding_str == NULL) |
| goto error; |
| |
| repr_str = PyObject_Repr(o); |
| if (repr_str == NULL) |
| goto error; |
| encoded = PyUnicode_AsEncodedString(repr_str, |
| stdout_encoding_str, |
| "backslashreplace"); |
| Py_DECREF(repr_str); |
| if (encoded == NULL) |
| goto error; |
| |
| buffer = _PyObject_GetAttrId(outf, &PyId_buffer); |
| if (buffer) { |
| result = _PyObject_CallMethodId(buffer, &PyId_write, "(O)", encoded); |
| Py_DECREF(buffer); |
| Py_DECREF(encoded); |
| if (result == NULL) |
| goto error; |
| Py_DECREF(result); |
| } |
| else { |
| PyErr_Clear(); |
| escaped_str = PyUnicode_FromEncodedObject(encoded, |
| stdout_encoding_str, |
| "strict"); |
| Py_DECREF(encoded); |
| if (PyFile_WriteObject(escaped_str, outf, Py_PRINT_RAW) != 0) { |
| Py_DECREF(escaped_str); |
| goto error; |
| } |
| Py_DECREF(escaped_str); |
| } |
| ret = 0; |
| goto finally; |
| |
| error: |
| ret = -1; |
| finally: |
| Py_XDECREF(stdout_encoding); |
| return ret; |
| } |
| |
| static PyObject * |
| sys_displayhook(PyObject *self, PyObject *o) |
| { |
| PyObject *outf; |
| PyInterpreterState *interp = PyThreadState_GET()->interp; |
| PyObject *modules = interp->modules; |
| PyObject *builtins; |
| static PyObject *newline = NULL; |
| int err; |
| |
| builtins = _PyDict_GetItemId(modules, &PyId_builtins); |
| if (builtins == NULL) { |
| PyErr_SetString(PyExc_RuntimeError, "lost builtins module"); |
| return NULL; |
| } |
| |
| /* Print value except if None */ |
| /* After printing, also assign to '_' */ |
| /* Before, set '_' to None to avoid recursion */ |
| if (o == Py_None) { |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| if (_PyObject_SetAttrId(builtins, &PyId__, Py_None) != 0) |
| return NULL; |
| outf = _PySys_GetObjectId(&PyId_stdout); |
| if (outf == NULL || outf == Py_None) { |
| PyErr_SetString(PyExc_RuntimeError, "lost sys.stdout"); |
| return NULL; |
| } |
| if (PyFile_WriteObject(o, outf, 0) != 0) { |
| if (PyErr_ExceptionMatches(PyExc_UnicodeEncodeError)) { |
| /* repr(o) is not encodable to sys.stdout.encoding with |
| * sys.stdout.errors error handler (which is probably 'strict') */ |
| PyErr_Clear(); |
| err = sys_displayhook_unencodable(outf, o); |
| if (err) |
| return NULL; |
| } |
| else { |
| return NULL; |
| } |
| } |
| if (newline == NULL) { |
| newline = PyUnicode_FromString("\n"); |
| if (newline == NULL) |
| return NULL; |
| } |
| if (PyFile_WriteObject(newline, outf, Py_PRINT_RAW) != 0) |
| return NULL; |
| if (_PyObject_SetAttrId(builtins, &PyId__, o) != 0) |
| return NULL; |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(displayhook_doc, |
| "displayhook(object) -> None\n" |
| "\n" |
| "Print an object to sys.stdout and also save it in builtins._\n" |
| ); |
| |
| static PyObject * |
| sys_excepthook(PyObject* self, PyObject* args) |
| { |
| PyObject *exc, *value, *tb; |
| if (!PyArg_UnpackTuple(args, "excepthook", 3, 3, &exc, &value, &tb)) |
| return NULL; |
| PyErr_Display(exc, value, tb); |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(excepthook_doc, |
| "excepthook(exctype, value, traceback) -> None\n" |
| "\n" |
| "Handle an exception by displaying it with a traceback on sys.stderr.\n" |
| ); |
| |
| static PyObject * |
| sys_exc_info(PyObject *self, PyObject *noargs) |
| { |
| PyThreadState *tstate; |
| tstate = PyThreadState_GET(); |
| return Py_BuildValue( |
| "(OOO)", |
| tstate->exc_type != NULL ? tstate->exc_type : Py_None, |
| tstate->exc_value != NULL ? tstate->exc_value : Py_None, |
| tstate->exc_traceback != NULL ? |
| tstate->exc_traceback : Py_None); |
| } |
| |
| PyDoc_STRVAR(exc_info_doc, |
| "exc_info() -> (type, value, traceback)\n\ |
| \n\ |
| Return information about the most recent exception caught by an except\n\ |
| clause in the current stack frame or in an older stack frame." |
| ); |
| |
| static PyObject * |
| sys_exit(PyObject *self, PyObject *args) |
| { |
| PyObject *exit_code = 0; |
| if (!PyArg_UnpackTuple(args, "exit", 0, 1, &exit_code)) |
| return NULL; |
| /* Raise SystemExit so callers may catch it or clean up. */ |
| PyErr_SetObject(PyExc_SystemExit, exit_code); |
| return NULL; |
| } |
| |
| PyDoc_STRVAR(exit_doc, |
| "exit([status])\n\ |
| \n\ |
| Exit the interpreter by raising SystemExit(status).\n\ |
| If the status is omitted or None, it defaults to zero (i.e., success).\n\ |
| If the status is an integer, it will be used as the system exit status.\n\ |
| If it is another kind of object, it will be printed and the system\n\ |
| exit status will be one (i.e., failure)." |
| ); |
| |
| |
| static PyObject * |
| sys_getdefaultencoding(PyObject *self) |
| { |
| return PyUnicode_FromString(PyUnicode_GetDefaultEncoding()); |
| } |
| |
| PyDoc_STRVAR(getdefaultencoding_doc, |
| "getdefaultencoding() -> string\n\ |
| \n\ |
| Return the current default string encoding used by the Unicode \n\ |
| implementation." |
| ); |
| |
| static PyObject * |
| sys_getfilesystemencoding(PyObject *self) |
| { |
| if (Py_FileSystemDefaultEncoding) |
| return PyUnicode_FromString(Py_FileSystemDefaultEncoding); |
| PyErr_SetString(PyExc_RuntimeError, |
| "filesystem encoding is not initialized"); |
| return NULL; |
| } |
| |
| PyDoc_STRVAR(getfilesystemencoding_doc, |
| "getfilesystemencoding() -> string\n\ |
| \n\ |
| Return the encoding used to convert Unicode filenames in\n\ |
| operating system filenames." |
| ); |
| |
| static PyObject * |
| sys_getfilesystemencodeerrors(PyObject *self) |
| { |
| if (Py_FileSystemDefaultEncodeErrors) |
| return PyUnicode_FromString(Py_FileSystemDefaultEncodeErrors); |
| PyErr_SetString(PyExc_RuntimeError, |
| "filesystem encoding is not initialized"); |
| return NULL; |
| } |
| |
| PyDoc_STRVAR(getfilesystemencodeerrors_doc, |
| "getfilesystemencodeerrors() -> string\n\ |
| \n\ |
| Return the error mode used to convert Unicode filenames in\n\ |
| operating system filenames." |
| ); |
| |
| static PyObject * |
| sys_intern(PyObject *self, PyObject *args) |
| { |
| PyObject *s; |
| if (!PyArg_ParseTuple(args, "U:intern", &s)) |
| return NULL; |
| if (PyUnicode_CheckExact(s)) { |
| Py_INCREF(s); |
| PyUnicode_InternInPlace(&s); |
| return s; |
| } |
| else { |
| PyErr_Format(PyExc_TypeError, |
| "can't intern %.400s", s->ob_type->tp_name); |
| return NULL; |
| } |
| } |
| |
| PyDoc_STRVAR(intern_doc, |
| "intern(string) -> string\n\ |
| \n\ |
| ``Intern'' the given string. This enters the string in the (global)\n\ |
| table of interned strings whose purpose is to speed up dictionary lookups.\n\ |
| Return the string itself or the previously interned string object with the\n\ |
| same value."); |
| |
| |
| /* |
| * Cached interned string objects used for calling the profile and |
| * trace functions. Initialized by trace_init(). |
| */ |
| static PyObject *whatstrings[7] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL}; |
| |
| static int |
| trace_init(void) |
| { |
| static const char * const whatnames[7] = { |
| "call", "exception", "line", "return", |
| "c_call", "c_exception", "c_return" |
| }; |
| PyObject *name; |
| int i; |
| for (i = 0; i < 7; ++i) { |
| if (whatstrings[i] == NULL) { |
| name = PyUnicode_InternFromString(whatnames[i]); |
| if (name == NULL) |
| return -1; |
| whatstrings[i] = name; |
| } |
| } |
| return 0; |
| } |
| |
| |
| static PyObject * |
| call_trampoline(PyObject* callback, |
| PyFrameObject *frame, int what, PyObject *arg) |
| { |
| PyObject *result; |
| PyObject *stack[3]; |
| |
| if (PyFrame_FastToLocalsWithError(frame) < 0) { |
| return NULL; |
| } |
| |
| stack[0] = (PyObject *)frame; |
| stack[1] = whatstrings[what]; |
| stack[2] = (arg != NULL) ? arg : Py_None; |
| |
| /* call the Python-level function */ |
| result = _PyObject_FastCall(callback, stack, 3); |
| |
| PyFrame_LocalsToFast(frame, 1); |
| if (result == NULL) { |
| PyTraceBack_Here(frame); |
| } |
| |
| return result; |
| } |
| |
| static int |
| profile_trampoline(PyObject *self, PyFrameObject *frame, |
| int what, PyObject *arg) |
| { |
| PyObject *result; |
| |
| if (arg == NULL) |
| arg = Py_None; |
| result = call_trampoline(self, frame, what, arg); |
| if (result == NULL) { |
| PyEval_SetProfile(NULL, NULL); |
| return -1; |
| } |
| Py_DECREF(result); |
| return 0; |
| } |
| |
| static int |
| trace_trampoline(PyObject *self, PyFrameObject *frame, |
| int what, PyObject *arg) |
| { |
| PyObject *callback; |
| PyObject *result; |
| |
| if (what == PyTrace_CALL) |
| callback = self; |
| else |
| callback = frame->f_trace; |
| if (callback == NULL) |
| return 0; |
| result = call_trampoline(callback, frame, what, arg); |
| if (result == NULL) { |
| PyEval_SetTrace(NULL, NULL); |
| Py_CLEAR(frame->f_trace); |
| return -1; |
| } |
| if (result != Py_None) { |
| Py_XSETREF(frame->f_trace, result); |
| } |
| else { |
| Py_DECREF(result); |
| } |
| return 0; |
| } |
| |
| static PyObject * |
| sys_settrace(PyObject *self, PyObject *args) |
| { |
| if (trace_init() == -1) |
| return NULL; |
| if (args == Py_None) |
| PyEval_SetTrace(NULL, NULL); |
| else |
| PyEval_SetTrace(trace_trampoline, args); |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(settrace_doc, |
| "settrace(function)\n\ |
| \n\ |
| Set the global debug tracing function. It will be called on each\n\ |
| function call. See the debugger chapter in the library manual." |
| ); |
| |
| static PyObject * |
| sys_gettrace(PyObject *self, PyObject *args) |
| { |
| PyThreadState *tstate = PyThreadState_GET(); |
| PyObject *temp = tstate->c_traceobj; |
| |
| if (temp == NULL) |
| temp = Py_None; |
| Py_INCREF(temp); |
| return temp; |
| } |
| |
| PyDoc_STRVAR(gettrace_doc, |
| "gettrace()\n\ |
| \n\ |
| Return the global debug tracing function set with sys.settrace.\n\ |
| See the debugger chapter in the library manual." |
| ); |
| |
| static PyObject * |
| sys_setprofile(PyObject *self, PyObject *args) |
| { |
| if (trace_init() == -1) |
| return NULL; |
| if (args == Py_None) |
| PyEval_SetProfile(NULL, NULL); |
| else |
| PyEval_SetProfile(profile_trampoline, args); |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(setprofile_doc, |
| "setprofile(function)\n\ |
| \n\ |
| Set the profiling function. It will be called on each function call\n\ |
| and return. See the profiler chapter in the library manual." |
| ); |
| |
| static PyObject * |
| sys_getprofile(PyObject *self, PyObject *args) |
| { |
| PyThreadState *tstate = PyThreadState_GET(); |
| PyObject *temp = tstate->c_profileobj; |
| |
| if (temp == NULL) |
| temp = Py_None; |
| Py_INCREF(temp); |
| return temp; |
| } |
| |
| PyDoc_STRVAR(getprofile_doc, |
| "getprofile()\n\ |
| \n\ |
| Return the profiling function set with sys.setprofile.\n\ |
| See the profiler chapter in the library manual." |
| ); |
| |
| static int _check_interval = 100; |
| |
| static PyObject * |
| sys_setcheckinterval(PyObject *self, PyObject *args) |
| { |
| if (PyErr_WarnEx(PyExc_DeprecationWarning, |
| "sys.getcheckinterval() and sys.setcheckinterval() " |
| "are deprecated. Use sys.setswitchinterval() " |
| "instead.", 1) < 0) |
| return NULL; |
| if (!PyArg_ParseTuple(args, "i:setcheckinterval", &_check_interval)) |
| return NULL; |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(setcheckinterval_doc, |
| "setcheckinterval(n)\n\ |
| \n\ |
| Tell the Python interpreter to check for asynchronous events every\n\ |
| n instructions. This also affects how often thread switches occur." |
| ); |
| |
| static PyObject * |
| sys_getcheckinterval(PyObject *self, PyObject *args) |
| { |
| if (PyErr_WarnEx(PyExc_DeprecationWarning, |
| "sys.getcheckinterval() and sys.setcheckinterval() " |
| "are deprecated. Use sys.getswitchinterval() " |
| "instead.", 1) < 0) |
| return NULL; |
| return PyLong_FromLong(_check_interval); |
| } |
| |
| PyDoc_STRVAR(getcheckinterval_doc, |
| "getcheckinterval() -> current check interval; see setcheckinterval()." |
| ); |
| |
| #ifdef WITH_THREAD |
| static PyObject * |
| sys_setswitchinterval(PyObject *self, PyObject *args) |
| { |
| double d; |
| if (!PyArg_ParseTuple(args, "d:setswitchinterval", &d)) |
| return NULL; |
| if (d <= 0.0) { |
| PyErr_SetString(PyExc_ValueError, |
| "switch interval must be strictly positive"); |
| return NULL; |
| } |
| _PyEval_SetSwitchInterval((unsigned long) (1e6 * d)); |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(setswitchinterval_doc, |
| "setswitchinterval(n)\n\ |
| \n\ |
| Set the ideal thread switching delay inside the Python interpreter\n\ |
| The actual frequency of switching threads can be lower if the\n\ |
| interpreter executes long sequences of uninterruptible code\n\ |
| (this is implementation-specific and workload-dependent).\n\ |
| \n\ |
| The parameter must represent the desired switching delay in seconds\n\ |
| A typical value is 0.005 (5 milliseconds)." |
| ); |
| |
| static PyObject * |
| sys_getswitchinterval(PyObject *self, PyObject *args) |
| { |
| return PyFloat_FromDouble(1e-6 * _PyEval_GetSwitchInterval()); |
| } |
| |
| PyDoc_STRVAR(getswitchinterval_doc, |
| "getswitchinterval() -> current thread switch interval; see setswitchinterval()." |
| ); |
| |
| #endif /* WITH_THREAD */ |
| |
| #ifdef WITH_TSC |
| static PyObject * |
| sys_settscdump(PyObject *self, PyObject *args) |
| { |
| int bool; |
| PyThreadState *tstate = PyThreadState_Get(); |
| |
| if (!PyArg_ParseTuple(args, "i:settscdump", &bool)) |
| return NULL; |
| if (bool) |
| tstate->interp->tscdump = 1; |
| else |
| tstate->interp->tscdump = 0; |
| Py_INCREF(Py_None); |
| return Py_None; |
| |
| } |
| |
| PyDoc_STRVAR(settscdump_doc, |
| "settscdump(bool)\n\ |
| \n\ |
| If true, tell the Python interpreter to dump VM measurements to\n\ |
| stderr. If false, turn off dump. The measurements are based on the\n\ |
| processor's time-stamp counter." |
| ); |
| #endif /* TSC */ |
| |
| static PyObject * |
| sys_setrecursionlimit(PyObject *self, PyObject *args) |
| { |
| int new_limit, mark; |
| PyThreadState *tstate; |
| |
| if (!PyArg_ParseTuple(args, "i:setrecursionlimit", &new_limit)) |
| return NULL; |
| |
| if (new_limit < 1) { |
| PyErr_SetString(PyExc_ValueError, |
| "recursion limit must be greater or equal than 1"); |
| return NULL; |
| } |
| |
| /* Issue #25274: When the recursion depth hits the recursion limit in |
| _Py_CheckRecursiveCall(), the overflowed flag of the thread state is |
| set to 1 and a RecursionError is raised. The overflowed flag is reset |
| to 0 when the recursion depth goes below the low-water mark: see |
| Py_LeaveRecursiveCall(). |
| |
| Reject too low new limit if the current recursion depth is higher than |
| the new low-water mark. Otherwise it may not be possible anymore to |
| reset the overflowed flag to 0. */ |
| mark = _Py_RecursionLimitLowerWaterMark(new_limit); |
| tstate = PyThreadState_GET(); |
| if (tstate->recursion_depth >= mark) { |
| PyErr_Format(PyExc_RecursionError, |
| "cannot set the recursion limit to %i at " |
| "the recursion depth %i: the limit is too low", |
| new_limit, tstate->recursion_depth); |
| return NULL; |
| } |
| |
| Py_SetRecursionLimit(new_limit); |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| static PyObject * |
| sys_set_coroutine_wrapper(PyObject *self, PyObject *wrapper) |
| { |
| if (wrapper != Py_None) { |
| if (!PyCallable_Check(wrapper)) { |
| PyErr_Format(PyExc_TypeError, |
| "callable expected, got %.50s", |
| Py_TYPE(wrapper)->tp_name); |
| return NULL; |
| } |
| _PyEval_SetCoroutineWrapper(wrapper); |
| } |
| else { |
| _PyEval_SetCoroutineWrapper(NULL); |
| } |
| Py_RETURN_NONE; |
| } |
| |
| PyDoc_STRVAR(set_coroutine_wrapper_doc, |
| "set_coroutine_wrapper(wrapper)\n\ |
| \n\ |
| Set a wrapper for coroutine objects." |
| ); |
| |
| static PyObject * |
| sys_get_coroutine_wrapper(PyObject *self, PyObject *args) |
| { |
| PyObject *wrapper = _PyEval_GetCoroutineWrapper(); |
| if (wrapper == NULL) { |
| wrapper = Py_None; |
| } |
| Py_INCREF(wrapper); |
| return wrapper; |
| } |
| |
| PyDoc_STRVAR(get_coroutine_wrapper_doc, |
| "get_coroutine_wrapper()\n\ |
| \n\ |
| Return the wrapper for coroutine objects set by sys.set_coroutine_wrapper." |
| ); |
| |
| |
| static PyTypeObject Hash_InfoType; |
| |
| PyDoc_STRVAR(hash_info_doc, |
| "hash_info\n\ |
| \n\ |
| A struct sequence providing parameters used for computing\n\ |
| hashes. The attributes are read only."); |
| |
| static PyStructSequence_Field hash_info_fields[] = { |
| {"width", "width of the type used for hashing, in bits"}, |
| {"modulus", "prime number giving the modulus on which the hash " |
| "function is based"}, |
| {"inf", "value to be used for hash of a positive infinity"}, |
| {"nan", "value to be used for hash of a nan"}, |
| {"imag", "multiplier used for the imaginary part of a complex number"}, |
| {"algorithm", "name of the algorithm for hashing of str, bytes and " |
| "memoryviews"}, |
| {"hash_bits", "internal output size of hash algorithm"}, |
| {"seed_bits", "seed size of hash algorithm"}, |
| {"cutoff", "small string optimization cutoff"}, |
| {NULL, NULL} |
| }; |
| |
| static PyStructSequence_Desc hash_info_desc = { |
| "sys.hash_info", |
| hash_info_doc, |
| hash_info_fields, |
| 9, |
| }; |
| |
| static PyObject * |
| get_hash_info(void) |
| { |
| PyObject *hash_info; |
| int field = 0; |
| PyHash_FuncDef *hashfunc; |
| hash_info = PyStructSequence_New(&Hash_InfoType); |
| if (hash_info == NULL) |
| return NULL; |
| hashfunc = PyHash_GetFuncDef(); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyLong_FromLong(8*sizeof(Py_hash_t))); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyLong_FromSsize_t(_PyHASH_MODULUS)); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyLong_FromLong(_PyHASH_INF)); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyLong_FromLong(_PyHASH_NAN)); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyLong_FromLong(_PyHASH_IMAG)); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyUnicode_FromString(hashfunc->name)); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyLong_FromLong(hashfunc->hash_bits)); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyLong_FromLong(hashfunc->seed_bits)); |
| PyStructSequence_SET_ITEM(hash_info, field++, |
| PyLong_FromLong(Py_HASH_CUTOFF)); |
| if (PyErr_Occurred()) { |
| Py_CLEAR(hash_info); |
| return NULL; |
| } |
| return hash_info; |
| } |
| |
| |
| PyDoc_STRVAR(setrecursionlimit_doc, |
| "setrecursionlimit(n)\n\ |
| \n\ |
| Set the maximum depth of the Python interpreter stack to n. This\n\ |
| limit prevents infinite recursion from causing an overflow of the C\n\ |
| stack and crashing Python. The highest possible limit is platform-\n\ |
| dependent." |
| ); |
| |
| static PyObject * |
| sys_getrecursionlimit(PyObject *self) |
| { |
| return PyLong_FromLong(Py_GetRecursionLimit()); |
| } |
| |
| PyDoc_STRVAR(getrecursionlimit_doc, |
| "getrecursionlimit()\n\ |
| \n\ |
| Return the current value of the recursion limit, the maximum depth\n\ |
| of the Python interpreter stack. This limit prevents infinite\n\ |
| recursion from causing an overflow of the C stack and crashing Python." |
| ); |
| |
| #ifdef MS_WINDOWS |
| PyDoc_STRVAR(getwindowsversion_doc, |
| "getwindowsversion()\n\ |
| \n\ |
| Return information about the running version of Windows as a named tuple.\n\ |
| The members are named: major, minor, build, platform, service_pack,\n\ |
| service_pack_major, service_pack_minor, suite_mask, and product_type. For\n\ |
| backward compatibility, only the first 5 items are available by indexing.\n\ |
| All elements are numbers, except service_pack which is a string. Platform\n\ |
| may be 0 for win32s, 1 for Windows 9x/ME, 2 for Windows NT/2000/XP/Vista/7,\n\ |
| 3 for Windows CE. Product_type may be 1 for a workstation, 2 for a domain\n\ |
| controller, 3 for a server." |
| ); |
| |
| static PyTypeObject WindowsVersionType = {0, 0, 0, 0, 0, 0}; |
| |
| static PyStructSequence_Field windows_version_fields[] = { |
| {"major", "Major version number"}, |
| {"minor", "Minor version number"}, |
| {"build", "Build number"}, |
| {"platform", "Operating system platform"}, |
| {"service_pack", "Latest Service Pack installed on the system"}, |
| {"service_pack_major", "Service Pack major version number"}, |
| {"service_pack_minor", "Service Pack minor version number"}, |
| {"suite_mask", "Bit mask identifying available product suites"}, |
| {"product_type", "System product type"}, |
| {0} |
| }; |
| |
| static PyStructSequence_Desc windows_version_desc = { |
| "sys.getwindowsversion", /* name */ |
| getwindowsversion_doc, /* doc */ |
| windows_version_fields, /* fields */ |
| 5 /* For backward compatibility, |
| only the first 5 items are accessible |
| via indexing, the rest are name only */ |
| }; |
| |
| /* Disable deprecation warnings about GetVersionEx as the result is |
| being passed straight through to the caller, who is responsible for |
| using it correctly. */ |
| #pragma warning(push) |
| #pragma warning(disable:4996) |
| |
| static PyObject * |
| sys_getwindowsversion(PyObject *self) |
| { |
| PyObject *version; |
| int pos = 0; |
| OSVERSIONINFOEX ver; |
| ver.dwOSVersionInfoSize = sizeof(ver); |
| if (!GetVersionEx((OSVERSIONINFO*) &ver)) |
| return PyErr_SetFromWindowsErr(0); |
| |
| version = PyStructSequence_New(&WindowsVersionType); |
| if (version == NULL) |
| return NULL; |
| |
| PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.dwMajorVersion)); |
| PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.dwMinorVersion)); |
| PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.dwBuildNumber)); |
| PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.dwPlatformId)); |
| PyStructSequence_SET_ITEM(version, pos++, PyUnicode_FromString(ver.szCSDVersion)); |
| PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wServicePackMajor)); |
| PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wServicePackMinor)); |
| PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wSuiteMask)); |
| PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wProductType)); |
| |
| if (PyErr_Occurred()) { |
| Py_DECREF(version); |
| return NULL; |
| } |
| return version; |
| } |
| |
| #pragma warning(pop) |
| |
| PyDoc_STRVAR(enablelegacywindowsfsencoding_doc, |
| "_enablelegacywindowsfsencoding()\n\ |
| \n\ |
| Changes the default filesystem encoding to mbcs:replace for consistency\n\ |
| with earlier versions of Python. See PEP 529 for more information.\n\ |
| \n\ |
| This is equivalent to defining the PYTHONLEGACYWINDOWSFSENCODING \n\ |
| environment variable before launching Python." |
| ); |
| |
| static PyObject * |
| sys_enablelegacywindowsfsencoding(PyObject *self) |
| { |
| Py_FileSystemDefaultEncoding = "mbcs"; |
| Py_FileSystemDefaultEncodeErrors = "replace"; |
| Py_RETURN_NONE; |
| } |
| |
| #endif /* MS_WINDOWS */ |
| |
| #ifdef HAVE_DLOPEN |
| static PyObject * |
| sys_setdlopenflags(PyObject *self, PyObject *args) |
| { |
| int new_val; |
| PyThreadState *tstate = PyThreadState_GET(); |
| if (!PyArg_ParseTuple(args, "i:setdlopenflags", &new_val)) |
| return NULL; |
| if (!tstate) |
| return NULL; |
| tstate->interp->dlopenflags = new_val; |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| |
| PyDoc_STRVAR(setdlopenflags_doc, |
| "setdlopenflags(n) -> None\n\ |
| \n\ |
| Set the flags used by the interpreter for dlopen calls, such as when the\n\ |
| interpreter loads extension modules. Among other things, this will enable\n\ |
| a lazy resolving of symbols when importing a module, if called as\n\ |
| sys.setdlopenflags(0). To share symbols across extension modules, call as\n\ |
| sys.setdlopenflags(os.RTLD_GLOBAL). Symbolic names for the flag modules\n\ |
| can be found in the os module (RTLD_xxx constants, e.g. os.RTLD_LAZY)."); |
| |
| static PyObject * |
| sys_getdlopenflags(PyObject *self, PyObject *args) |
| { |
| PyThreadState *tstate = PyThreadState_GET(); |
| if (!tstate) |
| return NULL; |
| return PyLong_FromLong(tstate->interp->dlopenflags); |
| } |
| |
| PyDoc_STRVAR(getdlopenflags_doc, |
| "getdlopenflags() -> int\n\ |
| \n\ |
| Return the current value of the flags that are used for dlopen calls.\n\ |
| The flag constants are defined in the os module."); |
| |
| #endif /* HAVE_DLOPEN */ |
| |
| #ifdef USE_MALLOPT |
| /* Link with -lmalloc (or -lmpc) on an SGI */ |
| #include <malloc.h> |
| |
| static PyObject * |
| sys_mdebug(PyObject *self, PyObject *args) |
| { |
| int flag; |
| if (!PyArg_ParseTuple(args, "i:mdebug", &flag)) |
| return NULL; |
| mallopt(M_DEBUG, flag); |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| #endif /* USE_MALLOPT */ |
| |
| size_t |
| _PySys_GetSizeOf(PyObject *o) |
| { |
| PyObject *res = NULL; |
| PyObject *method; |
| Py_ssize_t size; |
| |
| /* Make sure the type is initialized. float gets initialized late */ |
| if (PyType_Ready(Py_TYPE(o)) < 0) |
| return (size_t)-1; |
| |
| method = _PyObject_LookupSpecial(o, &PyId___sizeof__); |
| if (method == NULL) { |
| if (!PyErr_Occurred()) |
| PyErr_Format(PyExc_TypeError, |
| "Type %.100s doesn't define __sizeof__", |
| Py_TYPE(o)->tp_name); |
| } |
| else { |
| res = PyObject_CallFunctionObjArgs(method, NULL); |
| Py_DECREF(method); |
| } |
| |
| if (res == NULL) |
| return (size_t)-1; |
| |
| size = PyLong_AsSsize_t(res); |
| Py_DECREF(res); |
| if (size == -1 && PyErr_Occurred()) |
| return (size_t)-1; |
| |
| if (size < 0) { |
| PyErr_SetString(PyExc_ValueError, "__sizeof__() should return >= 0"); |
| return (size_t)-1; |
| } |
| |
| /* add gc_head size */ |
| if (PyObject_IS_GC(o)) |
| return ((size_t)size) + sizeof(PyGC_Head); |
| return (size_t)size; |
| } |
| |
| static PyObject * |
| sys_getsizeof(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| static char *kwlist[] = {"object", "default", 0}; |
| size_t size; |
| PyObject *o, *dflt = NULL; |
| |
| if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:getsizeof", |
| kwlist, &o, &dflt)) |
| return NULL; |
| |
| size = _PySys_GetSizeOf(o); |
| |
| if (size == (size_t)-1 && PyErr_Occurred()) { |
| /* Has a default value been given */ |
| if (dflt != NULL && PyErr_ExceptionMatches(PyExc_TypeError)) { |
| PyErr_Clear(); |
| Py_INCREF(dflt); |
| return dflt; |
| } |
| else |
| return NULL; |
| } |
| |
| return PyLong_FromSize_t(size); |
| } |
| |
| PyDoc_STRVAR(getsizeof_doc, |
| "getsizeof(object, default) -> int\n\ |
| \n\ |
| Return the size of object in bytes."); |
| |
| static PyObject * |
| sys_getrefcount(PyObject *self, PyObject *arg) |
| { |
| return PyLong_FromSsize_t(arg->ob_refcnt); |
| } |
| |
| #ifdef Py_REF_DEBUG |
| static PyObject * |
| sys_gettotalrefcount(PyObject *self) |
| { |
| return PyLong_FromSsize_t(_Py_GetRefTotal()); |
| } |
| #endif /* Py_REF_DEBUG */ |
| |
| PyDoc_STRVAR(getrefcount_doc, |
| "getrefcount(object) -> integer\n\ |
| \n\ |
| Return the reference count of object. The count returned is generally\n\ |
| one higher than you might expect, because it includes the (temporary)\n\ |
| reference as an argument to getrefcount()." |
| ); |
| |
| static PyObject * |
| sys_getallocatedblocks(PyObject *self) |
| { |
| return PyLong_FromSsize_t(_Py_GetAllocatedBlocks()); |
| } |
| |
| PyDoc_STRVAR(getallocatedblocks_doc, |
| "getallocatedblocks() -> integer\n\ |
| \n\ |
| Return the number of memory blocks currently allocated, regardless of their\n\ |
| size." |
| ); |
| |
| #ifdef COUNT_ALLOCS |
| static PyObject * |
| sys_getcounts(PyObject *self) |
| { |
| extern PyObject *get_counts(void); |
| |
| return get_counts(); |
| } |
| #endif |
| |
| PyDoc_STRVAR(getframe_doc, |
| "_getframe([depth]) -> frameobject\n\ |
| \n\ |
| Return a frame object from the call stack. If optional integer depth is\n\ |
| given, return the frame object that many calls below the top of the stack.\n\ |
| If that is deeper than the call stack, ValueError is raised. The default\n\ |
| for depth is zero, returning the frame at the top of the call stack.\n\ |
| \n\ |
| This function should be used for internal and specialized\n\ |
| purposes only." |
| ); |
| |
| static PyObject * |
| sys_getframe(PyObject *self, PyObject *args) |
| { |
| PyFrameObject *f = PyThreadState_GET()->frame; |
| int depth = -1; |
| |
| if (!PyArg_ParseTuple(args, "|i:_getframe", &depth)) |
| return NULL; |
| |
| while (depth > 0 && f != NULL) { |
| f = f->f_back; |
| --depth; |
| } |
| if (f == NULL) { |
| PyErr_SetString(PyExc_ValueError, |
| "call stack is not deep enough"); |
| return NULL; |
| } |
| Py_INCREF(f); |
| return (PyObject*)f; |
| } |
| |
| PyDoc_STRVAR(current_frames_doc, |
| "_current_frames() -> dictionary\n\ |
| \n\ |
| Return a dictionary mapping each current thread T's thread id to T's\n\ |
| current stack frame.\n\ |
| \n\ |
| This function should be used for specialized purposes only." |
| ); |
| |
| static PyObject * |
| sys_current_frames(PyObject *self, PyObject *noargs) |
| { |
| return _PyThread_CurrentFrames(); |
| } |
| |
| PyDoc_STRVAR(call_tracing_doc, |
| "call_tracing(func, args) -> object\n\ |
| \n\ |
| Call func(*args), while tracing is enabled. The tracing state is\n\ |
| saved, and restored afterwards. This is intended to be called from\n\ |
| a debugger from a checkpoint, to recursively debug some other code." |
| ); |
| |
| static PyObject * |
| sys_call_tracing(PyObject *self, PyObject *args) |
| { |
| PyObject *func, *funcargs; |
| if (!PyArg_ParseTuple(args, "OO!:call_tracing", &func, &PyTuple_Type, &funcargs)) |
| return NULL; |
| return _PyEval_CallTracing(func, funcargs); |
| } |
| |
| PyDoc_STRVAR(callstats_doc, |
| "callstats() -> tuple of integers\n\ |
| \n\ |
| Return a tuple of function call statistics, if CALL_PROFILE was defined\n\ |
| when Python was built. Otherwise, return None.\n\ |
| \n\ |
| When enabled, this function returns detailed, implementation-specific\n\ |
| details about the number of function calls executed. The return value is\n\ |
| a 11-tuple where the entries in the tuple are counts of:\n\ |
| 0. all function calls\n\ |
| 1. calls to PyFunction_Type objects\n\ |
| 2. PyFunction calls that do not create an argument tuple\n\ |
| 3. PyFunction calls that do not create an argument tuple\n\ |
| and bypass PyEval_EvalCodeEx()\n\ |
| 4. PyMethod calls\n\ |
| 5. PyMethod calls on bound methods\n\ |
| 6. PyType calls\n\ |
| 7. PyCFunction calls\n\ |
| 8. generator calls\n\ |
| 9. All other calls\n\ |
| 10. Number of stack pops performed by call_function()" |
| ); |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| static PyObject * |
| sys_debugmallocstats(PyObject *self, PyObject *args) |
| { |
| #ifdef WITH_PYMALLOC |
| if (_PyMem_PymallocEnabled()) { |
| _PyObject_DebugMallocStats(stderr); |
| fputc('\n', stderr); |
| } |
| #endif |
| _PyObject_DebugTypeStats(stderr); |
| |
| Py_RETURN_NONE; |
| } |
| PyDoc_STRVAR(debugmallocstats_doc, |
| "_debugmallocstats()\n\ |
| \n\ |
| Print summary info to stderr about the state of\n\ |
| pymalloc's structures.\n\ |
| \n\ |
| In Py_DEBUG mode, also perform some expensive internal consistency\n\ |
| checks.\n\ |
| "); |
| |
| #ifdef Py_TRACE_REFS |
| /* Defined in objects.c because it uses static globals if that file */ |
| extern PyObject *_Py_GetObjects(PyObject *, PyObject *); |
| #endif |
| |
| #ifdef DYNAMIC_EXECUTION_PROFILE |
| /* Defined in ceval.c because it uses static globals if that file */ |
| extern PyObject *_Py_GetDXProfile(PyObject *, PyObject *); |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| static PyObject * |
| sys_clear_type_cache(PyObject* self, PyObject* args) |
| { |
| PyType_ClearCache(); |
| Py_RETURN_NONE; |
| } |
| |
| PyDoc_STRVAR(sys_clear_type_cache__doc__, |
| "_clear_type_cache() -> None\n\ |
| Clear the internal type lookup cache."); |
| |
| static PyObject * |
| sys_is_finalizing(PyObject* self, PyObject* args) |
| { |
| return PyBool_FromLong(_Py_Finalizing != NULL); |
| } |
| |
| PyDoc_STRVAR(is_finalizing_doc, |
| "is_finalizing()\n\ |
| Return True if Python is exiting."); |
| |
| |
| static PyMethodDef sys_methods[] = { |
| /* Might as well keep this in alphabetic order */ |
| {"callstats", (PyCFunction)PyEval_GetCallStats, METH_NOARGS, |
| callstats_doc}, |
| {"_clear_type_cache", sys_clear_type_cache, METH_NOARGS, |
| sys_clear_type_cache__doc__}, |
| {"_current_frames", sys_current_frames, METH_NOARGS, |
| current_frames_doc}, |
| {"displayhook", sys_displayhook, METH_O, displayhook_doc}, |
| {"exc_info", sys_exc_info, METH_NOARGS, exc_info_doc}, |
| {"excepthook", sys_excepthook, METH_VARARGS, excepthook_doc}, |
| {"exit", sys_exit, METH_VARARGS, exit_doc}, |
| {"getdefaultencoding", (PyCFunction)sys_getdefaultencoding, |
| METH_NOARGS, getdefaultencoding_doc}, |
| #ifdef HAVE_DLOPEN |
| {"getdlopenflags", (PyCFunction)sys_getdlopenflags, METH_NOARGS, |
| getdlopenflags_doc}, |
| #endif |
| {"getallocatedblocks", (PyCFunction)sys_getallocatedblocks, METH_NOARGS, |
| getallocatedblocks_doc}, |
| #ifdef COUNT_ALLOCS |
| {"getcounts", (PyCFunction)sys_getcounts, METH_NOARGS}, |
| #endif |
| #ifdef DYNAMIC_EXECUTION_PROFILE |
| {"getdxp", _Py_GetDXProfile, METH_VARARGS}, |
| #endif |
| {"getfilesystemencoding", (PyCFunction)sys_getfilesystemencoding, |
| METH_NOARGS, getfilesystemencoding_doc}, |
| { "getfilesystemencodeerrors", (PyCFunction)sys_getfilesystemencodeerrors, |
| METH_NOARGS, getfilesystemencodeerrors_doc }, |
| #ifdef Py_TRACE_REFS |
| {"getobjects", _Py_GetObjects, METH_VARARGS}, |
| #endif |
| #ifdef Py_REF_DEBUG |
| {"gettotalrefcount", (PyCFunction)sys_gettotalrefcount, METH_NOARGS}, |
| #endif |
| {"getrefcount", (PyCFunction)sys_getrefcount, METH_O, getrefcount_doc}, |
| {"getrecursionlimit", (PyCFunction)sys_getrecursionlimit, METH_NOARGS, |
| getrecursionlimit_doc}, |
| {"getsizeof", (PyCFunction)sys_getsizeof, |
| METH_VARARGS | METH_KEYWORDS, getsizeof_doc}, |
| {"_getframe", sys_getframe, METH_VARARGS, getframe_doc}, |
| #ifdef MS_WINDOWS |
| {"getwindowsversion", (PyCFunction)sys_getwindowsversion, METH_NOARGS, |
| getwindowsversion_doc}, |
| {"_enablelegacywindowsfsencoding", (PyCFunction)sys_enablelegacywindowsfsencoding, |
| METH_NOARGS, enablelegacywindowsfsencoding_doc }, |
| #endif /* MS_WINDOWS */ |
| {"intern", sys_intern, METH_VARARGS, intern_doc}, |
| {"is_finalizing", sys_is_finalizing, METH_NOARGS, is_finalizing_doc}, |
| #ifdef USE_MALLOPT |
| {"mdebug", sys_mdebug, METH_VARARGS}, |
| #endif |
| {"setcheckinterval", sys_setcheckinterval, METH_VARARGS, |
| setcheckinterval_doc}, |
| {"getcheckinterval", sys_getcheckinterval, METH_NOARGS, |
| getcheckinterval_doc}, |
| #ifdef WITH_THREAD |
| {"setswitchinterval", sys_setswitchinterval, METH_VARARGS, |
| setswitchinterval_doc}, |
| {"getswitchinterval", sys_getswitchinterval, METH_NOARGS, |
| getswitchinterval_doc}, |
| #endif |
| #ifdef HAVE_DLOPEN |
| {"setdlopenflags", sys_setdlopenflags, METH_VARARGS, |
| setdlopenflags_doc}, |
| #endif |
| {"setprofile", sys_setprofile, METH_O, setprofile_doc}, |
| {"getprofile", sys_getprofile, METH_NOARGS, getprofile_doc}, |
| {"setrecursionlimit", sys_setrecursionlimit, METH_VARARGS, |
| setrecursionlimit_doc}, |
| #ifdef WITH_TSC |
| {"settscdump", sys_settscdump, METH_VARARGS, settscdump_doc}, |
| #endif |
| {"settrace", sys_settrace, METH_O, settrace_doc}, |
| {"gettrace", sys_gettrace, METH_NOARGS, gettrace_doc}, |
| {"call_tracing", sys_call_tracing, METH_VARARGS, call_tracing_doc}, |
| {"_debugmallocstats", sys_debugmallocstats, METH_NOARGS, |
| debugmallocstats_doc}, |
| {"set_coroutine_wrapper", sys_set_coroutine_wrapper, METH_O, |
| set_coroutine_wrapper_doc}, |
| {"get_coroutine_wrapper", sys_get_coroutine_wrapper, METH_NOARGS, |
| get_coroutine_wrapper_doc}, |
| {NULL, NULL} /* sentinel */ |
| }; |
| |
| static PyObject * |
| list_builtin_module_names(void) |
| { |
| PyObject *list = PyList_New(0); |
| int i; |
| if (list == NULL) |
| return NULL; |
| for (i = 0; PyImport_Inittab[i].name != NULL; i++) { |
| PyObject *name = PyUnicode_FromString( |
| PyImport_Inittab[i].name); |
| if (name == NULL) |
| break; |
| PyList_Append(list, name); |
| Py_DECREF(name); |
| } |
| if (PyList_Sort(list) != 0) { |
| Py_DECREF(list); |
| list = NULL; |
| } |
| if (list) { |
| PyObject *v = PyList_AsTuple(list); |
| Py_DECREF(list); |
| list = v; |
| } |
| return list; |
| } |
| |
| static PyObject *warnoptions = NULL; |
| |
| void |
| PySys_ResetWarnOptions(void) |
| { |
| if (warnoptions == NULL || !PyList_Check(warnoptions)) |
| return; |
| PyList_SetSlice(warnoptions, 0, PyList_GET_SIZE(warnoptions), NULL); |
| } |
| |
| void |
| PySys_AddWarnOptionUnicode(PyObject *unicode) |
| { |
| if (warnoptions == NULL || !PyList_Check(warnoptions)) { |
| Py_XDECREF(warnoptions); |
| warnoptions = PyList_New(0); |
| if (warnoptions == NULL) |
| return; |
| } |
| PyList_Append(warnoptions, unicode); |
| } |
| |
| void |
| PySys_AddWarnOption(const wchar_t *s) |
| { |
| PyObject *unicode; |
| unicode = PyUnicode_FromWideChar(s, -1); |
| if (unicode == NULL) |
| return; |
| PySys_AddWarnOptionUnicode(unicode); |
| Py_DECREF(unicode); |
| } |
| |
| int |
| PySys_HasWarnOptions(void) |
| { |
| return (warnoptions != NULL && (PyList_Size(warnoptions) > 0)) ? 1 : 0; |
| } |
| |
| static PyObject *xoptions = NULL; |
| |
| static PyObject * |
| get_xoptions(void) |
| { |
| if (xoptions == NULL || !PyDict_Check(xoptions)) { |
| Py_XDECREF(xoptions); |
| xoptions = PyDict_New(); |
| } |
| return xoptions; |
| } |
| |
| void |
| PySys_AddXOption(const wchar_t *s) |
| { |
| PyObject *opts; |
| PyObject *name = NULL, *value = NULL; |
| const wchar_t *name_end; |
| |
| opts = get_xoptions(); |
| if (opts == NULL) |
| goto error; |
| |
| name_end = wcschr(s, L'='); |
| if (!name_end) { |
| name = PyUnicode_FromWideChar(s, -1); |
| value = Py_True; |
| Py_INCREF(value); |
| } |
| else { |
| name = PyUnicode_FromWideChar(s, name_end - s); |
| value = PyUnicode_FromWideChar(name_end + 1, -1); |
| } |
| if (name == NULL || value == NULL) |
| goto error; |
| PyDict_SetItem(opts, name, value); |
| Py_DECREF(name); |
| Py_DECREF(value); |
| return; |
| |
| error: |
| Py_XDECREF(name); |
| Py_XDECREF(value); |
| /* No return value, therefore clear error state if possible */ |
| if (_PyThreadState_UncheckedGet()) |
| PyErr_Clear(); |
| } |
| |
| PyObject * |
| PySys_GetXOptions(void) |
| { |
| return get_xoptions(); |
| } |
| |
| /* XXX This doc string is too long to be a single string literal in VC++ 5.0. |
| Two literals concatenated works just fine. If you have a K&R compiler |
| or other abomination that however *does* understand longer strings, |
| get rid of the !!! comment in the middle and the quotes that surround it. */ |
| PyDoc_VAR(sys_doc) = |
| PyDoc_STR( |
| "This module provides access to some objects used or maintained by the\n\ |
| interpreter and to functions that interact strongly with the interpreter.\n\ |
| \n\ |
| Dynamic objects:\n\ |
| \n\ |
| argv -- command line arguments; argv[0] is the script pathname if known\n\ |
| path -- module search path; path[0] is the script directory, else ''\n\ |
| modules -- dictionary of loaded modules\n\ |
| \n\ |
| displayhook -- called to show results in an interactive session\n\ |
| excepthook -- called to handle any uncaught exception other than SystemExit\n\ |
| To customize printing in an interactive session or to install a custom\n\ |
| top-level exception handler, assign other functions to replace these.\n\ |
| \n\ |
| stdin -- standard input file object; used by input()\n\ |
| stdout -- standard output file object; used by print()\n\ |
| stderr -- standard error object; used for error messages\n\ |
| By assigning other file objects (or objects that behave like files)\n\ |
| to these, it is possible to redirect all of the interpreter's I/O.\n\ |
| \n\ |
| last_type -- type of last uncaught exception\n\ |
| last_value -- value of last uncaught exception\n\ |
| last_traceback -- traceback of last uncaught exception\n\ |
| These three are only available in an interactive session after a\n\ |
| traceback has been printed.\n\ |
| " |
| ) |
| /* concatenating string here */ |
| PyDoc_STR( |
| "\n\ |
| Static objects:\n\ |
| \n\ |
| builtin_module_names -- tuple of module names built into this interpreter\n\ |
| copyright -- copyright notice pertaining to this interpreter\n\ |
| exec_prefix -- prefix used to find the machine-specific Python library\n\ |
| executable -- absolute path of the executable binary of the Python interpreter\n\ |
| float_info -- a struct sequence with information about the float implementation.\n\ |
| float_repr_style -- string indicating the style of repr() output for floats\n\ |
| hash_info -- a struct sequence with information about the hash algorithm.\n\ |
| hexversion -- version information encoded as a single integer\n\ |
| implementation -- Python implementation information.\n\ |
| int_info -- a struct sequence with information about the int implementation.\n\ |
| maxsize -- the largest supported length of containers.\n\ |
| maxunicode -- the value of the largest Unicode code point\n\ |
| platform -- platform identifier\n\ |
| prefix -- prefix used to find the Python library\n\ |
| thread_info -- a struct sequence with information about the thread implementation.\n\ |
| version -- the version of this interpreter as a string\n\ |
| version_info -- version information as a named tuple\n\ |
| " |
| ) |
| #ifdef MS_COREDLL |
| /* concatenating string here */ |
| PyDoc_STR( |
| "dllhandle -- [Windows only] integer handle of the Python DLL\n\ |
| winver -- [Windows only] version number of the Python DLL\n\ |
| " |
| ) |
| #endif /* MS_COREDLL */ |
| #ifdef MS_WINDOWS |
| /* concatenating string here */ |
| PyDoc_STR( |
| "_enablelegacywindowsfsencoding -- [Windows only] \n\ |
| " |
| ) |
| #endif |
| PyDoc_STR( |
| "__stdin__ -- the original stdin; don't touch!\n\ |
| __stdout__ -- the original stdout; don't touch!\n\ |
| __stderr__ -- the original stderr; don't touch!\n\ |
| __displayhook__ -- the original displayhook; don't touch!\n\ |
| __excepthook__ -- the original excepthook; don't touch!\n\ |
| \n\ |
| Functions:\n\ |
| \n\ |
| displayhook() -- print an object to the screen, and save it in builtins._\n\ |
| excepthook() -- print an exception and its traceback to sys.stderr\n\ |
| exc_info() -- return thread-safe information about the current exception\n\ |
| exit() -- exit the interpreter by raising SystemExit\n\ |
| getdlopenflags() -- returns flags to be used for dlopen() calls\n\ |
| getprofile() -- get the global profiling function\n\ |
| getrefcount() -- return the reference count for an object (plus one :-)\n\ |
| getrecursionlimit() -- return the max recursion depth for the interpreter\n\ |
| getsizeof() -- return the size of an object in bytes\n\ |
| gettrace() -- get the global debug tracing function\n\ |
| setcheckinterval() -- control how often the interpreter checks for events\n\ |
| setdlopenflags() -- set the flags to be used for dlopen() calls\n\ |
| setprofile() -- set the global profiling function\n\ |
| setrecursionlimit() -- set the max recursion depth for the interpreter\n\ |
| settrace() -- set the global debug tracing function\n\ |
| " |
| ) |
| /* end of sys_doc */ ; |
| |
| |
| PyDoc_STRVAR(flags__doc__, |
| "sys.flags\n\ |
| \n\ |
| Flags provided through command line arguments or environment vars."); |
| |
| static PyTypeObject FlagsType; |
| |
| static PyStructSequence_Field flags_fields[] = { |
| {"debug", "-d"}, |
| {"inspect", "-i"}, |
| {"interactive", "-i"}, |
| {"optimize", "-O or -OO"}, |
| {"dont_write_bytecode", "-B"}, |
| {"no_user_site", "-s"}, |
| {"no_site", "-S"}, |
| {"ignore_environment", "-E"}, |
| {"verbose", "-v"}, |
| /* {"unbuffered", "-u"}, */ |
| /* {"skip_first", "-x"}, */ |
| {"bytes_warning", "-b"}, |
| {"quiet", "-q"}, |
| {"hash_randomization", "-R"}, |
| {"isolated", "-I"}, |
| {0} |
| }; |
| |
| static PyStructSequence_Desc flags_desc = { |
| "sys.flags", /* name */ |
| flags__doc__, /* doc */ |
| flags_fields, /* fields */ |
| 13 |
| }; |
| |
| static PyObject* |
| make_flags(void) |
| { |
| int pos = 0; |
| PyObject *seq; |
| |
| seq = PyStructSequence_New(&FlagsType); |
| if (seq == NULL) |
| return NULL; |
| |
| #define SetFlag(flag) \ |
| PyStructSequence_SET_ITEM(seq, pos++, PyLong_FromLong(flag)) |
| |
| SetFlag(Py_DebugFlag); |
| SetFlag(Py_InspectFlag); |
| SetFlag(Py_InteractiveFlag); |
| SetFlag(Py_OptimizeFlag); |
| SetFlag(Py_DontWriteBytecodeFlag); |
| SetFlag(Py_NoUserSiteDirectory); |
| SetFlag(Py_NoSiteFlag); |
| SetFlag(Py_IgnoreEnvironmentFlag); |
| SetFlag(Py_VerboseFlag); |
| /* SetFlag(saw_unbuffered_flag); */ |
| /* SetFlag(skipfirstline); */ |
| SetFlag(Py_BytesWarningFlag); |
| SetFlag(Py_QuietFlag); |
| SetFlag(Py_HashRandomizationFlag); |
| SetFlag(Py_IsolatedFlag); |
| #undef SetFlag |
| |
| if (PyErr_Occurred()) { |
| Py_DECREF(seq); |
| return NULL; |
| } |
| return seq; |
| } |
| |
| PyDoc_STRVAR(version_info__doc__, |
| "sys.version_info\n\ |
| \n\ |
| Version information as a named tuple."); |
| |
| static PyTypeObject VersionInfoType; |
| |
| static PyStructSequence_Field version_info_fields[] = { |
| {"major", "Major release number"}, |
| {"minor", "Minor release number"}, |
| {"micro", "Patch release number"}, |
| {"releaselevel", "'alpha', 'beta', 'candidate', or 'release'"}, |
| {"serial", "Serial release number"}, |
| {0} |
| }; |
| |
| static PyStructSequence_Desc version_info_desc = { |
| "sys.version_info", /* name */ |
| version_info__doc__, /* doc */ |
| version_info_fields, /* fields */ |
| 5 |
| }; |
| |
| static PyObject * |
| make_version_info(void) |
| { |
| PyObject *version_info; |
| char *s; |
| int pos = 0; |
| |
| version_info = PyStructSequence_New(&VersionInfoType); |
| if (version_info == NULL) { |
| return NULL; |
| } |
| |
| /* |
| * These release level checks are mutually exclusive and cover |
| * the field, so don't get too fancy with the pre-processor! |
| */ |
| #if PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_ALPHA |
| s = "alpha"; |
| #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_BETA |
| s = "beta"; |
| #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_GAMMA |
| s = "candidate"; |
| #elif PY_RELEASE_LEVEL == PY_RELEASE_LEVEL_FINAL |
| s = "final"; |
| #endif |
| |
| #define SetIntItem(flag) \ |
| PyStructSequence_SET_ITEM(version_info, pos++, PyLong_FromLong(flag)) |
| #define SetStrItem(flag) \ |
| PyStructSequence_SET_ITEM(version_info, pos++, PyUnicode_FromString(flag)) |
| |
| SetIntItem(PY_MAJOR_VERSION); |
| SetIntItem(PY_MINOR_VERSION); |
| SetIntItem(PY_MICRO_VERSION); |
| SetStrItem(s); |
| SetIntItem(PY_RELEASE_SERIAL); |
| #undef SetIntItem |
| #undef SetStrItem |
| |
| if (PyErr_Occurred()) { |
| Py_CLEAR(version_info); |
| return NULL; |
| } |
| return version_info; |
| } |
| |
| /* sys.implementation values */ |
| #define NAME "cpython" |
| const char *_PySys_ImplName = NAME; |
| #define MAJOR Py_STRINGIFY(PY_MAJOR_VERSION) |
| #define MINOR Py_STRINGIFY(PY_MINOR_VERSION) |
| #define TAG NAME "-" MAJOR MINOR |
| const char *_PySys_ImplCacheTag = TAG; |
| #undef NAME |
| #undef MAJOR |
| #undef MINOR |
| #undef TAG |
| |
| static PyObject * |
| make_impl_info(PyObject *version_info) |
| { |
| int res; |
| PyObject *impl_info, *value, *ns; |
| |
| impl_info = PyDict_New(); |
| if (impl_info == NULL) |
| return NULL; |
| |
| /* populate the dict */ |
| |
| value = PyUnicode_FromString(_PySys_ImplName); |
| if (value == NULL) |
| goto error; |
| res = PyDict_SetItemString(impl_info, "name", value); |
| Py_DECREF(value); |
| if (res < 0) |
| goto error; |
| |
| value = PyUnicode_FromString(_PySys_ImplCacheTag); |
| if (value == NULL) |
| goto error; |
| res = PyDict_SetItemString(impl_info, "cache_tag", value); |
| Py_DECREF(value); |
| if (res < 0) |
| goto error; |
| |
| res = PyDict_SetItemString(impl_info, "version", version_info); |
| if (res < 0) |
| goto error; |
| |
| value = PyLong_FromLong(PY_VERSION_HEX); |
| if (value == NULL) |
| goto error; |
| res = PyDict_SetItemString(impl_info, "hexversion", value); |
| Py_DECREF(value); |
| if (res < 0) |
| goto error; |
| |
| #ifdef MULTIARCH |
| value = PyUnicode_FromString(MULTIARCH); |
| if (value == NULL) |
| goto error; |
| res = PyDict_SetItemString(impl_info, "_multiarch", value); |
| Py_DECREF(value); |
| if (res < 0) |
| goto error; |
| #endif |
| |
| /* dict ready */ |
| |
| ns = _PyNamespace_New(impl_info); |
| Py_DECREF(impl_info); |
| return ns; |
| |
| error: |
| Py_CLEAR(impl_info); |
| return NULL; |
| } |
| |
| static struct PyModuleDef sysmodule = { |
| PyModuleDef_HEAD_INIT, |
| "sys", |
| sys_doc, |
| -1, /* multiple "initialization" just copies the module dict. */ |
| sys_methods, |
| NULL, |
| NULL, |
| NULL, |
| NULL |
| }; |
| |
| PyObject * |
| _PySys_Init(void) |
| { |
| PyObject *m, *sysdict, *version_info; |
| int res; |
| |
| m = PyModule_Create(&sysmodule); |
| if (m == NULL) |
| return NULL; |
| sysdict = PyModule_GetDict(m); |
| #define SET_SYS_FROM_STRING_BORROW(key, value) \ |
| do { \ |
| PyObject *v = (value); \ |
| if (v == NULL) \ |
| return NULL; \ |
| res = PyDict_SetItemString(sysdict, key, v); \ |
| if (res < 0) { \ |
| return NULL; \ |
| } \ |
| } while (0) |
| #define SET_SYS_FROM_STRING(key, value) \ |
| do { \ |
| PyObject *v = (value); \ |
| if (v == NULL) \ |
| return NULL; \ |
| res = PyDict_SetItemString(sysdict, key, v); \ |
| Py_DECREF(v); \ |
| if (res < 0) { \ |
| return NULL; \ |
| } \ |
| } while (0) |
| |
| /* Check that stdin is not a directory |
| Using shell redirection, you can redirect stdin to a directory, |
| crashing the Python interpreter. Catch this common mistake here |
| and output a useful error message. Note that under MS Windows, |
| the shell already prevents that. */ |
| #if !defined(MS_WINDOWS) |
| { |
| struct _Py_stat_struct sb; |
| if (_Py_fstat_noraise(fileno(stdin), &sb) == 0 && |
| S_ISDIR(sb.st_mode)) { |
| /* There's nothing more we can do. */ |
| /* Py_FatalError() will core dump, so just exit. */ |
| PySys_WriteStderr("Python error: <stdin> is a directory, cannot continue\n"); |
| exit(EXIT_FAILURE); |
| } |
| } |
| #endif |
| |
| /* stdin/stdout/stderr are set in pylifecycle.c */ |
| |
| SET_SYS_FROM_STRING_BORROW("__displayhook__", |
| PyDict_GetItemString(sysdict, "displayhook")); |
| SET_SYS_FROM_STRING_BORROW("__excepthook__", |
| PyDict_GetItemString(sysdict, "excepthook")); |
| SET_SYS_FROM_STRING("version", |
| PyUnicode_FromString(Py_GetVersion())); |
| SET_SYS_FROM_STRING("hexversion", |
| PyLong_FromLong(PY_VERSION_HEX)); |
| SET_SYS_FROM_STRING("_mercurial", |
| Py_BuildValue("(szz)", "CPython", _Py_hgidentifier(), |
| _Py_hgversion())); |
| SET_SYS_FROM_STRING("dont_write_bytecode", |
| PyBool_FromLong(Py_DontWriteBytecodeFlag)); |
| SET_SYS_FROM_STRING("api_version", |
| PyLong_FromLong(PYTHON_API_VERSION)); |
| SET_SYS_FROM_STRING("copyright", |
| PyUnicode_FromString(Py_GetCopyright())); |
| SET_SYS_FROM_STRING("platform", |
| PyUnicode_FromString(Py_GetPlatform())); |
| SET_SYS_FROM_STRING("executable", |
| PyUnicode_FromWideChar( |
| Py_GetProgramFullPath(), -1)); |
| SET_SYS_FROM_STRING("prefix", |
| PyUnicode_FromWideChar(Py_GetPrefix(), -1)); |
| SET_SYS_FROM_STRING("exec_prefix", |
| PyUnicode_FromWideChar(Py_GetExecPrefix(), -1)); |
| SET_SYS_FROM_STRING("base_prefix", |
| PyUnicode_FromWideChar(Py_GetPrefix(), -1)); |
| SET_SYS_FROM_STRING("base_exec_prefix", |
| PyUnicode_FromWideChar(Py_GetExecPrefix(), -1)); |
| SET_SYS_FROM_STRING("maxsize", |
| PyLong_FromSsize_t(PY_SSIZE_T_MAX)); |
| SET_SYS_FROM_STRING("float_info", |
| PyFloat_GetInfo()); |
| SET_SYS_FROM_STRING("int_info", |
| PyLong_GetInfo()); |
| /* initialize hash_info */ |
| if (Hash_InfoType.tp_name == NULL) { |
| if (PyStructSequence_InitType2(&Hash_InfoType, &hash_info_desc) < 0) |
| return NULL; |
| } |
| SET_SYS_FROM_STRING("hash_info", |
| get_hash_info()); |
| SET_SYS_FROM_STRING("maxunicode", |
| PyLong_FromLong(0x10FFFF)); |
| SET_SYS_FROM_STRING("builtin_module_names", |
| list_builtin_module_names()); |
| #if PY_BIG_ENDIAN |
| SET_SYS_FROM_STRING("byteorder", |
| PyUnicode_FromString("big")); |
| #else |
| SET_SYS_FROM_STRING("byteorder", |
| PyUnicode_FromString("little")); |
| #endif |
| |
| #ifdef MS_COREDLL |
| SET_SYS_FROM_STRING("dllhandle", |
| PyLong_FromVoidPtr(PyWin_DLLhModule)); |
| SET_SYS_FROM_STRING("winver", |
| PyUnicode_FromString(PyWin_DLLVersionString)); |
| #endif |
| #ifdef ABIFLAGS |
| SET_SYS_FROM_STRING("abiflags", |
| PyUnicode_FromString(ABIFLAGS)); |
| #endif |
| if (warnoptions == NULL) { |
| warnoptions = PyList_New(0); |
| if (warnoptions == NULL) |
| return NULL; |
| } |
| else { |
| Py_INCREF(warnoptions); |
| } |
| SET_SYS_FROM_STRING_BORROW("warnoptions", warnoptions); |
| |
| SET_SYS_FROM_STRING_BORROW("_xoptions", get_xoptions()); |
| |
| /* version_info */ |
| if (VersionInfoType.tp_name == NULL) { |
| if (PyStructSequence_InitType2(&VersionInfoType, |
| &version_info_desc) < 0) |
| return NULL; |
| } |
| version_info = make_version_info(); |
| SET_SYS_FROM_STRING("version_info", version_info); |
| /* prevent user from creating new instances */ |
| VersionInfoType.tp_init = NULL; |
| VersionInfoType.tp_new = NULL; |
| res = PyDict_DelItemString(VersionInfoType.tp_dict, "__new__"); |
| if (res < 0 && PyErr_ExceptionMatches(PyExc_KeyError)) |
| PyErr_Clear(); |
| |
| /* implementation */ |
| SET_SYS_FROM_STRING("implementation", make_impl_info(version_info)); |
| |
| /* flags */ |
| if (FlagsType.tp_name == 0) { |
| if (PyStructSequence_InitType2(&FlagsType, &flags_desc) < 0) |
| return NULL; |
| } |
| SET_SYS_FROM_STRING("flags", make_flags()); |
| /* prevent user from creating new instances */ |
| FlagsType.tp_init = NULL; |
| FlagsType.tp_new = NULL; |
| res = PyDict_DelItemString(FlagsType.tp_dict, "__new__"); |
| if (res < 0 && PyErr_ExceptionMatches(PyExc_KeyError)) |
| PyErr_Clear(); |
| |
| #if defined(MS_WINDOWS) |
| /* getwindowsversion */ |
| if (WindowsVersionType.tp_name == 0) |
| if (PyStructSequence_InitType2(&WindowsVersionType, |
| &windows_version_desc) < 0) |
| return NULL; |
| /* prevent user from creating new instances */ |
| WindowsVersionType.tp_init = NULL; |
| WindowsVersionType.tp_new = NULL; |
| res = PyDict_DelItemString(WindowsVersionType.tp_dict, "__new__"); |
| if (res < 0 && PyErr_ExceptionMatches(PyExc_KeyError)) |
| PyErr_Clear(); |
| #endif |
| |
| /* float repr style: 0.03 (short) vs 0.029999999999999999 (legacy) */ |
| #ifndef PY_NO_SHORT_FLOAT_REPR |
| SET_SYS_FROM_STRING("float_repr_style", |
| PyUnicode_FromString("short")); |
| #else |
| SET_SYS_FROM_STRING("float_repr_style", |
| PyUnicode_FromString("legacy")); |
| #endif |
| |
| #ifdef WITH_THREAD |
| SET_SYS_FROM_STRING("thread_info", PyThread_GetInfo()); |
| #endif |
| |
| #undef SET_SYS_FROM_STRING |
| #undef SET_SYS_FROM_STRING_BORROW |
| if (PyErr_Occurred()) |
| return NULL; |
| return m; |
| } |
| |
| static PyObject * |
| makepathobject(const wchar_t *path, wchar_t delim) |
| { |
| int i, n; |
| const wchar_t *p; |
| PyObject *v, *w; |
| |
| n = 1; |
| p = path; |
| while ((p = wcschr(p, delim)) != NULL) { |
| n++; |
| p++; |
| } |
| v = PyList_New(n); |
| if (v == NULL) |
| return NULL; |
| for (i = 0; ; i++) { |
| p = wcschr(path, delim); |
| if (p == NULL) |
| p = path + wcslen(path); /* End of string */ |
| w = PyUnicode_FromWideChar(path, (Py_ssize_t)(p - path)); |
| if (w == NULL) { |
| Py_DECREF(v); |
| return NULL; |
| } |
| PyList_SetItem(v, i, w); |
| if (*p == '\0') |
| break; |
| path = p+1; |
| } |
| return v; |
| } |
| |
| void |
| PySys_SetPath(const wchar_t *path) |
| { |
| PyObject *v; |
| if ((v = makepathobject(path, DELIM)) == NULL) |
| Py_FatalError("can't create sys.path"); |
| if (_PySys_SetObjectId(&PyId_path, v) != 0) |
| Py_FatalError("can't assign sys.path"); |
| Py_DECREF(v); |
| } |
| |
| static PyObject * |
| makeargvobject(int argc, wchar_t **argv) |
| { |
| PyObject *av; |
| if (argc <= 0 || argv == NULL) { |
| /* Ensure at least one (empty) argument is seen */ |
| static wchar_t *empty_argv[1] = {L""}; |
| argv = empty_argv; |
| argc = 1; |
| } |
| av = PyList_New(argc); |
| if (av != NULL) { |
| int i; |
| for (i = 0; i < argc; i++) { |
| PyObject *v = PyUnicode_FromWideChar(argv[i], -1); |
| if (v == NULL) { |
| Py_DECREF(av); |
| av = NULL; |
| break; |
| } |
| PyList_SetItem(av, i, v); |
| } |
| } |
| return av; |
| } |
| |
| #define _HAVE_SCRIPT_ARGUMENT(argc, argv) \ |
| (argc > 0 && argv0 != NULL && \ |
| wcscmp(argv0, L"-c") != 0 && wcscmp(argv0, L"-m") != 0) |
| |
| static void |
| sys_update_path(int argc, wchar_t **argv) |
| { |
| wchar_t *argv0; |
| wchar_t *p = NULL; |
| Py_ssize_t n = 0; |
| PyObject *a; |
| PyObject *path; |
| #ifdef HAVE_READLINK |
| wchar_t link[MAXPATHLEN+1]; |
| wchar_t argv0copy[2*MAXPATHLEN+1]; |
| int nr = 0; |
| #endif |
| #if defined(HAVE_REALPATH) |
| wchar_t fullpath[MAXPATHLEN]; |
| #elif defined(MS_WINDOWS) |
| wchar_t fullpath[MAX_PATH]; |
| #endif |
| |
| path = _PySys_GetObjectId(&PyId_path); |
| if (path == NULL) |
| return; |
| |
| argv0 = argv[0]; |
| |
| #ifdef HAVE_READLINK |
| if (_HAVE_SCRIPT_ARGUMENT(argc, argv)) |
| nr = _Py_wreadlink(argv0, link, MAXPATHLEN); |
| if (nr > 0) { |
| /* It's a symlink */ |
| link[nr] = '\0'; |
| if (link[0] == SEP) |
| argv0 = link; /* Link to absolute path */ |
| else if (wcschr(link, SEP) == NULL) |
| ; /* Link without path */ |
| else { |
| /* Must join(dirname(argv0), link) */ |
| wchar_t *q = wcsrchr(argv0, SEP); |
| if (q == NULL) |
| argv0 = link; /* argv0 without path */ |
| else { |
| /* Must make a copy, argv0copy has room for 2 * MAXPATHLEN */ |
| wcsncpy(argv0copy, argv0, MAXPATHLEN); |
| q = wcsrchr(argv0copy, SEP); |
| wcsncpy(q+1, link, MAXPATHLEN); |
| q[MAXPATHLEN + 1] = L'\0'; |
| argv0 = argv0copy; |
| } |
| } |
| } |
| #endif /* HAVE_READLINK */ |
| #if SEP == '\\' /* Special case for MS filename syntax */ |
| if (_HAVE_SCRIPT_ARGUMENT(argc, argv)) { |
| wchar_t *q; |
| #if defined(MS_WINDOWS) |
| /* Replace the first element in argv with the full path. */ |
| wchar_t *ptemp; |
| if (GetFullPathNameW(argv0, |
| Py_ARRAY_LENGTH(fullpath), |
| fullpath, |
| &ptemp)) { |
| argv0 = fullpath; |
| } |
| #endif |
| p = wcsrchr(argv0, SEP); |
| /* Test for alternate separator */ |
| q = wcsrchr(p ? p : argv0, '/'); |
| if (q != NULL) |
| p = q; |
| if (p != NULL) { |
| n = p + 1 - argv0; |
| if (n > 1 && p[-1] != ':') |
| n--; /* Drop trailing separator */ |
| } |
| } |
| #else /* All other filename syntaxes */ |
| if (_HAVE_SCRIPT_ARGUMENT(argc, argv)) { |
| #if defined(HAVE_REALPATH) |
| if (_Py_wrealpath(argv0, fullpath, Py_ARRAY_LENGTH(fullpath))) { |
| argv0 = fullpath; |
| } |
| #endif |
| p = wcsrchr(argv0, SEP); |
| } |
| if (p != NULL) { |
| n = p + 1 - argv0; |
| #if SEP == '/' /* Special case for Unix filename syntax */ |
| if (n > 1) |
| n--; /* Drop trailing separator */ |
| #endif /* Unix */ |
| } |
| #endif /* All others */ |
| a = PyUnicode_FromWideChar(argv0, n); |
| if (a == NULL) |
| Py_FatalError("no mem for sys.path insertion"); |
| if (PyList_Insert(path, 0, a) < 0) |
| Py_FatalError("sys.path.insert(0) failed"); |
| Py_DECREF(a); |
| } |
| |
| void |
| PySys_SetArgvEx(int argc, wchar_t **argv, int updatepath) |
| { |
| PyObject *av = makeargvobject(argc, argv); |
| if (av == NULL) |
| Py_FatalError("no mem for sys.argv"); |
| if (PySys_SetObject("argv", av) != 0) |
| Py_FatalError("can't assign sys.argv"); |
| Py_DECREF(av); |
| if (updatepath) |
| sys_update_path(argc, argv); |
| } |
| |
| void |
| PySys_SetArgv(int argc, wchar_t **argv) |
| { |
| PySys_SetArgvEx(argc, argv, Py_IsolatedFlag == 0); |
| } |
| |
| /* Reimplementation of PyFile_WriteString() no calling indirectly |
| PyErr_CheckSignals(): avoid the call to PyObject_Str(). */ |
| |
| static int |
| sys_pyfile_write_unicode(PyObject *unicode, PyObject *file) |
| { |
| PyObject *writer = NULL, *result = NULL; |
| int err; |
| |
| if (file == NULL) |
| return -1; |
| |
| writer = _PyObject_GetAttrId(file, &PyId_write); |
| if (writer == NULL) |
| goto error; |
| |
| result = _PyObject_CallArg1(writer, unicode); |
| if (result == NULL) { |
| goto error; |
| } else { |
| err = 0; |
| goto finally; |
| } |
| |
| error: |
| err = -1; |
| finally: |
| Py_XDECREF(writer); |
| Py_XDECREF(result); |
| return err; |
| } |
| |
| static int |
| sys_pyfile_write(const char *text, PyObject *file) |
| { |
| PyObject *unicode = NULL; |
| int err; |
| |
| if (file == NULL) |
| return -1; |
| |
| unicode = PyUnicode_FromString(text); |
| if (unicode == NULL) |
| return -1; |
| |
| err = sys_pyfile_write_unicode(unicode, file); |
| Py_DECREF(unicode); |
| return err; |
| } |
| |
| /* APIs to write to sys.stdout or sys.stderr using a printf-like interface. |
| Adapted from code submitted by Just van Rossum. |
| |
| PySys_WriteStdout(format, ...) |
| PySys_WriteStderr(format, ...) |
| |
| The first function writes to sys.stdout; the second to sys.stderr. When |
| there is a problem, they write to the real (C level) stdout or stderr; |
| no exceptions are raised. |
| |
| PyErr_CheckSignals() is not called to avoid the execution of the Python |
| signal handlers: they may raise a new exception whereas sys_write() |
| ignores all exceptions. |
| |
| Both take a printf-style format string as their first argument followed |
| by a variable length argument list determined by the format string. |
| |
| *** WARNING *** |
| |
| The format should limit the total size of the formatted output string to |
| 1000 bytes. In particular, this means that no unrestricted "%s" formats |
| should occur; these should be limited using "%.<N>s where <N> is a |
| decimal number calculated so that <N> plus the maximum size of other |
| formatted text does not exceed 1000 bytes. Also watch out for "%f", |
| which can print hundreds of digits for very large numbers. |
| |
| */ |
| |
| static void |
| sys_write(_Py_Identifier *key, FILE *fp, const char *format, va_list va) |
| { |
| PyObject *file; |
| PyObject *error_type, *error_value, *error_traceback; |
| char buffer[1001]; |
| int written; |
| |
| PyErr_Fetch(&error_type, &error_value, &error_traceback); |
| file = _PySys_GetObjectId(key); |
| written = PyOS_vsnprintf(buffer, sizeof(buffer), format, va); |
| if (sys_pyfile_write(buffer, file) != 0) { |
| PyErr_Clear(); |
| fputs(buffer, fp); |
| } |
| if (written < 0 || (size_t)written >= sizeof(buffer)) { |
| const char *truncated = "... truncated"; |
| if (sys_pyfile_write(truncated, file) != 0) |
| fputs(truncated, fp); |
| } |
| PyErr_Restore(error_type, error_value, error_traceback); |
| } |
| |
| void |
| PySys_WriteStdout(const char *format, ...) |
| { |
| va_list va; |
| |
| va_start(va, format); |
| sys_write(&PyId_stdout, stdout, format, va); |
| va_end(va); |
| } |
| |
| void |
| PySys_WriteStderr(const char *format, ...) |
| { |
| va_list va; |
| |
| va_start(va, format); |
| sys_write(&PyId_stderr, stderr, format, va); |
| va_end(va); |
| } |
| |
| static void |
| sys_format(_Py_Identifier *key, FILE *fp, const char *format, va_list va) |
| { |
| PyObject *file, *message; |
| PyObject *error_type, *error_value, *error_traceback; |
| char *utf8; |
| |
| PyErr_Fetch(&error_type, &error_value, &error_traceback); |
| file = _PySys_GetObjectId(key); |
| message = PyUnicode_FromFormatV(format, va); |
| if (message != NULL) { |
| if (sys_pyfile_write_unicode(message, file) != 0) { |
| PyErr_Clear(); |
| utf8 = _PyUnicode_AsString(message); |
| if (utf8 != NULL) |
| fputs(utf8, fp); |
| } |
| Py_DECREF(message); |
| } |
| PyErr_Restore(error_type, error_value, error_traceback); |
| } |
| |
| void |
| PySys_FormatStdout(const char *format, ...) |
| { |
| va_list va; |
| |
| va_start(va, format); |
| sys_format(&PyId_stdout, stdout, format, va); |
| va_end(va); |
| } |
| |
| void |
| PySys_FormatStderr(const char *format, ...) |
| { |
| va_list va; |
| |
| va_start(va, format); |
| sys_format(&PyId_stderr, stderr, format, va); |
| va_end(va); |
| } |