diff options
Diffstat (limited to 'Python/sysmodule.c')
| -rw-r--r-- | Python/sysmodule.c | 230 |
1 files changed, 149 insertions, 81 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c index c4f27d0868..2f700e6507 100644 --- a/Python/sysmodule.c +++ b/Python/sysmodule.c @@ -17,6 +17,7 @@ Data members: #include "Python.h" #include "code.h" #include "frameobject.h" +#include "pythread.h" #include "osdefs.h" @@ -78,8 +79,10 @@ sys_displayhook_unencodable(PyObject *outf, PyObject *o) PyObject *encoded, *escaped_str, *repr_str, *buffer, *result; char *stdout_encoding_str; int ret; + _Py_IDENTIFIER(encoding); + _Py_IDENTIFIER(buffer); - stdout_encoding = PyObject_GetAttrString(outf, "encoding"); + stdout_encoding = _PyObject_GetAttrId(outf, &PyId_encoding); if (stdout_encoding == NULL) goto error; stdout_encoding_str = _PyUnicode_AsString(stdout_encoding); @@ -96,9 +99,10 @@ sys_displayhook_unencodable(PyObject *outf, PyObject *o) if (encoded == NULL) goto error; - buffer = PyObject_GetAttrString(outf, "buffer"); + buffer = _PyObject_GetAttrId(outf, &PyId_buffer); if (buffer) { - result = PyObject_CallMethod(buffer, "write", "(O)", encoded); + _Py_IDENTIFIER(write); + result = _PyObject_CallMethodId(buffer, &PyId_write, "(O)", encoded); Py_DECREF(buffer); Py_DECREF(encoded); if (result == NULL) @@ -135,6 +139,7 @@ sys_displayhook(PyObject *self, PyObject *o) PyObject *modules = interp->modules; PyObject *builtins = PyDict_GetItemString(modules, "builtins"); int err; + _Py_IDENTIFIER(_); if (builtins == NULL) { PyErr_SetString(PyExc_RuntimeError, "lost builtins module"); @@ -148,7 +153,7 @@ sys_displayhook(PyObject *self, PyObject *o) Py_INCREF(Py_None); return Py_None; } - if (PyObject_SetAttrString(builtins, "_", Py_None) != 0) + if (_PyObject_SetAttrId(builtins, &PyId__, Py_None) != 0) return NULL; outf = PySys_GetObject("stdout"); if (outf == NULL || outf == Py_None) { @@ -170,7 +175,7 @@ sys_displayhook(PyObject *self, PyObject *o) } if (PyFile_WriteString("\n", outf) != 0) return NULL; - if (PyObject_SetAttrString(builtins, "_", o) != 0) + if (_PyObject_SetAttrId(builtins, &PyId__, o) != 0) return NULL; Py_INCREF(Py_None); return Py_None; @@ -235,7 +240,7 @@ PyDoc_STRVAR(exit_doc, \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 numeric, it will be used as the system exit status.\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)." ); @@ -390,8 +395,7 @@ trace_trampoline(PyObject *self, PyFrameObject *frame, result = call_trampoline(tstate, callback, frame, what, arg); if (result == NULL) { PyEval_SetTrace(NULL, NULL); - Py_XDECREF(frame->f_trace); - frame->f_trace = NULL; + Py_CLEAR(frame->f_trace); return -1; } if (result != Py_None) { @@ -742,6 +746,10 @@ sys_getwindowsversion(PyObject *self) 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; } @@ -770,9 +778,7 @@ 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(ctypes.RTLD_GLOBAL). Symbolic names for the flag modules\n\ -can be either found in the ctypes module, or in the DLFCN module. If DLFCN\n\ -is not available, it can be generated from /usr/include/dlfcn.h using the\n\ -h2py script."); +can be found in the os module (RTLD_xxx constants, e.g. os.RTLD_LAZY)."); static PyObject * sys_getdlopenflags(PyObject *self, PyObject *args) @@ -811,10 +817,11 @@ static PyObject * sys_getsizeof(PyObject *self, PyObject *args, PyObject *kwds) { PyObject *res = NULL; - static PyObject *str__sizeof__ = NULL, *gc_head_size = NULL; + static PyObject *gc_head_size = NULL; static char *kwlist[] = {"object", "default", 0}; PyObject *o, *dflt = NULL; PyObject *method; + _Py_IDENTIFIER(__sizeof__); if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:getsizeof", kwlist, &o, &dflt)) @@ -831,8 +838,7 @@ sys_getsizeof(PyObject *self, PyObject *args, PyObject *kwds) if (PyType_Ready(Py_TYPE(o)) < 0) return NULL; - method = _PyObject_LookupSpecial(o, "__sizeof__", - &str__sizeof__); + method = _PyObject_LookupSpecial(o, &PyId___sizeof__); if (method == NULL) { if (!PyErr_Occurred()) PyErr_Format(PyExc_TypeError, @@ -994,6 +1000,27 @@ a 11-tuple where the entries in the tuple are counts of:\n\ extern "C" { #endif +static PyObject * +sys_debugmallocstats(PyObject *self, PyObject *args) +{ +#ifdef WITH_PYMALLOC + _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 *); @@ -1090,6 +1117,8 @@ static PyMethodDef sys_methods[] = { {"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_VARARGS, + debugmallocstats_doc}, {NULL, NULL} /* sentinel */ }; @@ -1177,7 +1206,6 @@ PySys_AddXOption(const wchar_t *s) PyObject *opts; PyObject *name = NULL, *value = NULL; const wchar_t *name_end; - int r; opts = get_xoptions(); if (opts == NULL) @@ -1195,7 +1223,7 @@ PySys_AddXOption(const wchar_t *s) } if (name == NULL || value == NULL) goto error; - r = PyDict_SetItem(opts, name, value); + PyDict_SetItem(opts, name, value); Py_DECREF(name); Py_DECREF(value); return; @@ -1252,21 +1280,22 @@ PyDoc_STR( "\n\ Static objects:\n\ \n\ -float_info -- a dict with information about the float implementation.\n\ -int_info -- a struct sequence with information about the int implementation.\n\ -maxsize -- the largest supported length of containers.\n\ -maxunicode -- the largest supported character\n\ builtin_module_names -- tuple of module names built into this interpreter\n\ -subversion -- subversion information of the build as tuple\n\ -version -- the version of this interpreter as a string\n\ -version_info -- version information as a named tuple\n\ -hexversion -- version information encoded as a single integer\n\ copyright -- copyright notice pertaining to this interpreter\n\ -platform -- platform identifier\n\ -executable -- absolute path of the executable binary of the Python interpreter\n\ -prefix -- prefix used to find the Python library\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\ +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 codepoint\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_WINDOWS @@ -1305,43 +1334,6 @@ settrace() -- set the global debug tracing function\n\ ) /* end of sys_doc */ ; -/* Subversion branch and revision management */ -static int svn_initialized; -static char patchlevel_revision[50]; /* Just the number */ -static char branch[50]; -static char shortbranch[50]; -static const char *svn_revision; - -static void -svnversion_init(void) -{ - if (svn_initialized) - return; - - svn_initialized = 1; - *patchlevel_revision = '\0'; - strcpy(branch, ""); - strcpy(shortbranch, "unknown"); - svn_revision = ""; -} - -/* Return svnversion output if available. - Else return Revision of patchlevel.h if on branch. - Else return empty string */ -const char* -Py_SubversionRevision() -{ - svnversion_init(); - return svn_revision; -} - -const char* -Py_SubversionShortBranch() -{ - svnversion_init(); - return shortbranch; -} - PyDoc_STRVAR(flags__doc__, "sys.flags\n\ @@ -1352,7 +1344,6 @@ static PyTypeObject FlagsType; static PyStructSequence_Field flags_fields[] = { {"debug", "-d"}, - {"division_warning", "-Q"}, {"inspect", "-i"}, {"interactive", "-i"}, {"optimize", "-O or -OO"}, @@ -1377,9 +1368,9 @@ static PyStructSequence_Desc flags_desc = { flags__doc__, /* doc */ flags_fields, /* fields */ #ifdef RISCOS - 14 -#else 13 +#else + 12 #endif }; @@ -1397,7 +1388,6 @@ make_flags(void) PyStructSequence_SET_ITEM(seq, pos++, PyLong_FromLong(flag)) SetFlag(Py_DebugFlag); - SetFlag(Py_DivisionWarningFlag); SetFlag(Py_InspectFlag); SetFlag(Py_InteractiveFlag); SetFlag(Py_OptimizeFlag); @@ -1417,6 +1407,7 @@ make_flags(void) #undef SetFlag if (PyErr_Occurred()) { + Py_DECREF(seq); return NULL; } return seq; @@ -1491,6 +1482,73 @@ make_version_info(void) return version_info; } +/* sys.implementation values */ +#define NAME "cpython" +const char *_PySys_ImplName = NAME; +#define QUOTE(arg) #arg +#define STRIFY(name) QUOTE(name) +#define MAJOR STRIFY(PY_MAJOR_VERSION) +#define MINOR STRIFY(PY_MINOR_VERSION) +#define TAG NAME "-" MAJOR MINOR; +const char *_PySys_ImplCacheTag = TAG; +#undef NAME +#undef QUOTE +#undef STRIFY +#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; + + /* 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", @@ -1506,7 +1564,7 @@ static struct PyModuleDef sysmodule = { PyObject * _PySys_Init(void) { - PyObject *m, *v, *sysdict; + PyObject *m, *v, *sysdict, *version_info; char *s; m = PyModule_Create(&sysmodule); @@ -1547,10 +1605,6 @@ _PySys_Init(void) PyUnicode_FromString(Py_GetVersion())); SET_SYS_FROM_STRING("hexversion", PyLong_FromLong(PY_VERSION_HEX)); - svnversion_init(); - SET_SYS_FROM_STRING("subversion", - Py_BuildValue("(sss)", "CPython", branch, - svn_revision)); SET_SYS_FROM_STRING("_mercurial", Py_BuildValue("(szz)", "CPython", _Py_hgidentifier(), _Py_hgversion())); @@ -1569,6 +1623,10 @@ _PySys_Init(void) 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", @@ -1581,7 +1639,7 @@ _PySys_Init(void) SET_SYS_FROM_STRING("hash_info", get_hash_info()); SET_SYS_FROM_STRING("maxunicode", - PyLong_FromLong(PyUnicode_GetMax())); + PyLong_FromLong(0x10FFFF)); SET_SYS_FROM_STRING("builtin_module_names", list_builtin_module_names()); { @@ -1626,11 +1684,15 @@ _PySys_Init(void) /* version_info */ if (VersionInfoType.tp_name == 0) PyStructSequence_InitType(&VersionInfoType, &version_info_desc); - SET_SYS_FROM_STRING("version_info", make_version_info()); + 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; + /* implementation */ + SET_SYS_FROM_STRING("implementation", make_impl_info(version_info)); + /* flags */ if (FlagsType.tp_name == 0) PyStructSequence_InitType(&FlagsType, &flags_desc); @@ -1658,6 +1720,10 @@ _PySys_Init(void) PyUnicode_FromString("legacy")); #endif +#ifdef WITH_THREAD + SET_SYS_FROM_STRING("thread_info", PyThread_GetInfo()); +#endif + #undef SET_SYS_FROM_STRING if (PyErr_Occurred()) return NULL; @@ -1794,10 +1860,11 @@ sys_update_path(int argc, wchar_t **argv) if (q == NULL) argv0 = link; /* argv0 without path */ else { - /* Must make a copy */ - wcscpy(argv0copy, argv0); + /* Must make a copy, argv0copy has room for 2 * MAXPATHLEN */ + wcsncpy(argv0copy, argv0, MAXPATHLEN); q = wcsrchr(argv0copy, SEP); - wcscpy(q+1, link); + wcsncpy(q+1, link, MAXPATHLEN); + q[MAXPATHLEN + 1] = L'\0'; argv0 = argv0copy; } } @@ -1812,7 +1879,7 @@ sys_update_path(int argc, wchar_t **argv) the argument must be the full path anyway. */ wchar_t *ptemp; if (GetFullPathNameW(argv0, - sizeof(fullpath)/sizeof(fullpath[0]), + Py_ARRAY_LENGTH(fullpath), fullpath, &ptemp)) { argv0 = fullpath; @@ -1832,7 +1899,7 @@ sys_update_path(int argc, wchar_t **argv) #else /* All other filename syntaxes */ if (_HAVE_SCRIPT_ARGUMENT(argc, argv)) { #if defined(HAVE_REALPATH) - if (_Py_wrealpath(argv0, fullpath, PATH_MAX)) { + if (_Py_wrealpath(argv0, fullpath, Py_ARRAY_LENGTH(fullpath))) { argv0 = fullpath; } #endif @@ -1881,11 +1948,12 @@ sys_pyfile_write_unicode(PyObject *unicode, PyObject *file) { PyObject *writer = NULL, *args = NULL, *result = NULL; int err; + _Py_IDENTIFIER(write); if (file == NULL) return -1; - writer = PyObject_GetAttrString(file, "write"); + writer = _PyObject_GetAttrId(file, &PyId_write); if (writer == NULL) goto error; |