summaryrefslogtreecommitdiffstats
path: root/Python/sysmodule.c
diff options
context:
space:
mode:
Diffstat (limited to 'Python/sysmodule.c')
-rw-r--r--Python/sysmodule.c229
1 files changed, 154 insertions, 75 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index df9dfb1..4028a01 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -41,6 +41,26 @@ extern const char *PyWin_DLLVersionString;
#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)
{
@@ -52,6 +72,21 @@ PySys_GetObject(const char *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();
@@ -79,8 +114,6 @@ 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_GetAttrId(outf, &PyId_encoding);
if (stdout_encoding == NULL)
@@ -101,7 +134,6 @@ sys_displayhook_unencodable(PyObject *outf, PyObject *o)
buffer = _PyObject_GetAttrId(outf, &PyId_buffer);
if (buffer) {
- _Py_IDENTIFIER(write);
result = _PyObject_CallMethodId(buffer, &PyId_write, "(O)", encoded);
Py_DECREF(buffer);
Py_DECREF(encoded);
@@ -137,10 +169,11 @@ sys_displayhook(PyObject *self, PyObject *o)
PyObject *outf;
PyInterpreterState *interp = PyThreadState_GET()->interp;
PyObject *modules = interp->modules;
- PyObject *builtins = PyDict_GetItemString(modules, "builtins");
+ PyObject *builtins;
+ static PyObject *newline = NULL;
int err;
- _Py_IDENTIFIER(_);
+ builtins = _PyDict_GetItemId(modules, &PyId_builtins);
if (builtins == NULL) {
PyErr_SetString(PyExc_RuntimeError, "lost builtins module");
return NULL;
@@ -155,7 +188,7 @@ sys_displayhook(PyObject *self, PyObject *o)
}
if (_PyObject_SetAttrId(builtins, &PyId__, Py_None) != 0)
return NULL;
- outf = PySys_GetObject("stdout");
+ outf = _PySys_GetObjectId(&PyId_stdout);
if (outf == NULL || outf == Py_None) {
PyErr_SetString(PyExc_RuntimeError, "lost sys.stdout");
return NULL;
@@ -173,7 +206,12 @@ sys_displayhook(PyObject *self, PyObject *o)
return NULL;
}
}
- if (PyFile_WriteString("\n", outf) != 0)
+ 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;
@@ -332,12 +370,16 @@ static PyObject *
call_trampoline(PyThreadState *tstate, PyObject* callback,
PyFrameObject *frame, int what, PyObject *arg)
{
- PyObject *args = PyTuple_New(3);
+ PyObject *args;
PyObject *whatstr;
PyObject *result;
+ args = PyTuple_New(3);
if (args == NULL)
return NULL;
+ if (PyFrame_FastToLocalsWithError(frame) < 0)
+ return NULL;
+
Py_INCREF(frame);
whatstr = whatstrings[what];
Py_INCREF(whatstr);
@@ -349,7 +391,6 @@ call_trampoline(PyThreadState *tstate, PyObject* callback,
PyTuple_SET_ITEM(args, 2, arg);
/* call the Python-level function */
- PyFrame_FastToLocals(frame);
result = PyEval_CallObject(callback, args);
PyFrame_LocalsToFast(frame, 1);
if (result == NULL)
@@ -617,7 +658,7 @@ PyDoc_STRVAR(hash_info_doc,
"hash_info\n\
\n\
A struct sequence providing parameters used for computing\n\
-numeric hashes. The attributes are read only.");
+hashes. The attributes are read only.");
static PyStructSequence_Field hash_info_fields[] = {
{"width", "width of the type used for hashing, in bits"},
@@ -626,6 +667,11 @@ static PyStructSequence_Field hash_info_fields[] = {
{"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}
};
@@ -633,7 +679,7 @@ static PyStructSequence_Desc hash_info_desc = {
"sys.hash_info",
hash_info_doc,
hash_info_fields,
- 5,
+ 9,
};
static PyObject *
@@ -641,9 +687,11 @@ 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++,
@@ -654,6 +702,14 @@ get_hash_info(void)
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;
@@ -774,7 +830,7 @@ 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(ctypes.RTLD_GLOBAL). Symbolic names for the flag modules\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 *
@@ -790,7 +846,7 @@ 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 ctypes and DLFCN modules.");
+The flag constants are defined in the os module.");
#endif /* HAVE_DLOPEN */
@@ -818,7 +874,6 @@ sys_getsizeof(PyObject *self, PyObject *args, PyObject *kwds)
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))
@@ -894,6 +949,19 @@ 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)
@@ -1062,6 +1130,8 @@ static PyMethodDef sys_methods[] = {
{"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
@@ -1283,6 +1353,7 @@ 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\
@@ -1349,14 +1420,12 @@ static PyStructSequence_Field flags_fields[] = {
{"no_site", "-S"},
{"ignore_environment", "-E"},
{"verbose", "-v"},
-#ifdef RISCOS
- {"riscos_wimp", "???"},
-#endif
/* {"unbuffered", "-u"}, */
/* {"skip_first", "-x"}, */
{"bytes_warning", "-b"},
{"quiet", "-q"},
{"hash_randomization", "-R"},
+ {"isolated", "-I"},
{0}
};
@@ -1364,11 +1433,7 @@ static PyStructSequence_Desc flags_desc = {
"sys.flags", /* name */
flags__doc__, /* doc */
flags_fields, /* fields */
-#ifdef RISCOS
13
-#else
- 12
-#endif
};
static PyObject*
@@ -1393,14 +1458,12 @@ make_flags(void)
SetFlag(Py_NoSiteFlag);
SetFlag(Py_IgnoreEnvironmentFlag);
SetFlag(Py_VerboseFlag);
-#ifdef RISCOS
- SetFlag(Py_RISCOSWimpFlag);
-#endif
/* SetFlag(saw_unbuffered_flag); */
/* SetFlag(skipfirstline); */
SetFlag(Py_BytesWarningFlag);
SetFlag(Py_QuietFlag);
SetFlag(Py_HashRandomizationFlag);
+ SetFlag(Py_IsolatedFlag);
#undef SetFlag
if (PyErr_Occurred()) {
@@ -1560,18 +1623,35 @@ static struct PyModuleDef sysmodule = {
PyObject *
_PySys_Init(void)
{
- PyObject *m, *v, *sysdict, *version_info;
- char *s;
+ PyObject *m, *sysdict, *version_info;
m = PyModule_Create(&sysmodule);
if (m == NULL)
return NULL;
sysdict = PyModule_GetDict(m);
-#define SET_SYS_FROM_STRING(key, value) \
- v = value; \
- if (v != NULL) \
- PyDict_SetItemString(sysdict, key, v); \
- Py_XDECREF(v)
+#define SET_SYS_FROM_STRING_BORROW(key, value) \
+ do { \
+ int res; \
+ 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 { \
+ int res; \
+ 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,
@@ -1593,10 +1673,10 @@ _PySys_Init(void)
/* stdin/stdout/stderr are now set by pythonrun.c */
- PyDict_SetItemString(sysdict, "__displayhook__",
- PyDict_GetItemString(sysdict, "displayhook"));
- PyDict_SetItemString(sysdict, "__excepthook__",
- PyDict_GetItemString(sysdict, "excepthook"));
+ 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",
@@ -1630,28 +1710,24 @@ _PySys_Init(void)
SET_SYS_FROM_STRING("int_info",
PyLong_GetInfo());
/* initialize hash_info */
- if (Hash_InfoType.tp_name == 0)
- PyStructSequence_InitType(&Hash_InfoType, &hash_info_desc);
+ 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());
- {
- /* Assumes that longs are at least 2 bytes long.
- Should be safe! */
- unsigned long number = 1;
- char *value;
-
- s = (char *) &number;
- if (s[0] == 0)
- value = "big";
- else
- value = "little";
- SET_SYS_FROM_STRING("byteorder",
- PyUnicode_FromString(value));
- }
+#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));
@@ -1664,22 +1740,22 @@ _PySys_Init(void)
#endif
if (warnoptions == NULL) {
warnoptions = PyList_New(0);
+ if (warnoptions == NULL)
+ return NULL;
}
else {
Py_INCREF(warnoptions);
}
- if (warnoptions != NULL) {
- PyDict_SetItemString(sysdict, "warnoptions", warnoptions);
- }
+ SET_SYS_FROM_STRING_BORROW("warnoptions", warnoptions);
- v = get_xoptions();
- if (v != NULL) {
- PyDict_SetItemString(sysdict, "_xoptions", v);
- }
+ SET_SYS_FROM_STRING_BORROW("_xoptions", get_xoptions());
/* version_info */
- if (VersionInfoType.tp_name == 0)
- PyStructSequence_InitType(&VersionInfoType, &version_info_desc);
+ 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 */
@@ -1690,8 +1766,10 @@ _PySys_Init(void)
SET_SYS_FROM_STRING("implementation", make_impl_info(version_info));
/* flags */
- if (FlagsType.tp_name == 0)
- PyStructSequence_InitType(&FlagsType, &flags_desc);
+ 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;
@@ -1701,7 +1779,9 @@ _PySys_Init(void)
#if defined(MS_WINDOWS)
/* getwindowsversion */
if (WindowsVersionType.tp_name == 0)
- PyStructSequence_InitType(&WindowsVersionType, &windows_version_desc);
+ if (PyStructSequence_InitType2(&WindowsVersionType,
+ &windows_version_desc) < 0)
+ return NULL;
/* prevent user from creating new instances */
WindowsVersionType.tp_init = NULL;
WindowsVersionType.tp_new = NULL;
@@ -1765,7 +1845,7 @@ PySys_SetPath(const wchar_t *path)
PyObject *v;
if ((v = makepathobject(path, DELIM)) == NULL)
Py_FatalError("can't create sys.path");
- if (PySys_SetObject("path", v) != 0)
+ if (_PySys_SetObjectId(&PyId_path, v) != 0)
Py_FatalError("can't assign sys.path");
Py_DECREF(v);
}
@@ -1834,7 +1914,7 @@ sys_update_path(int argc, wchar_t **argv)
wchar_t fullpath[MAX_PATH];
#endif
- path = PySys_GetObject("path");
+ path = _PySys_GetObjectId(&PyId_path);
if (path == NULL)
return;
@@ -1933,7 +2013,7 @@ PySys_SetArgvEx(int argc, wchar_t **argv, int updatepath)
void
PySys_SetArgv(int argc, wchar_t **argv)
{
- PySys_SetArgvEx(argc, argv, 1);
+ PySys_SetArgvEx(argc, argv, Py_IsolatedFlag == 0);
}
/* Reimplementation of PyFile_WriteString() no calling indirectly
@@ -1944,7 +2024,6 @@ 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;
@@ -2021,7 +2100,7 @@ sys_pyfile_write(const char *text, PyObject *file)
*/
static void
-sys_write(char *name, FILE *fp, const char *format, va_list va)
+sys_write(_Py_Identifier *key, FILE *fp, const char *format, va_list va)
{
PyObject *file;
PyObject *error_type, *error_value, *error_traceback;
@@ -2029,7 +2108,7 @@ sys_write(char *name, FILE *fp, const char *format, va_list va)
int written;
PyErr_Fetch(&error_type, &error_value, &error_traceback);
- file = PySys_GetObject(name);
+ file = _PySys_GetObjectId(key);
written = PyOS_vsnprintf(buffer, sizeof(buffer), format, va);
if (sys_pyfile_write(buffer, file) != 0) {
PyErr_Clear();
@@ -2049,7 +2128,7 @@ PySys_WriteStdout(const char *format, ...)
va_list va;
va_start(va, format);
- sys_write("stdout", stdout, format, va);
+ sys_write(&PyId_stdout, stdout, format, va);
va_end(va);
}
@@ -2059,19 +2138,19 @@ PySys_WriteStderr(const char *format, ...)
va_list va;
va_start(va, format);
- sys_write("stderr", stderr, format, va);
+ sys_write(&PyId_stderr, stderr, format, va);
va_end(va);
}
static void
-sys_format(char *name, FILE *fp, const char *format, va_list va)
+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_GetObject(name);
+ file = _PySys_GetObjectId(key);
message = PyUnicode_FromFormatV(format, va);
if (message != NULL) {
if (sys_pyfile_write_unicode(message, file) != 0) {
@@ -2091,7 +2170,7 @@ PySys_FormatStdout(const char *format, ...)
va_list va;
va_start(va, format);
- sys_format("stdout", stdout, format, va);
+ sys_format(&PyId_stdout, stdout, format, va);
va_end(va);
}
@@ -2101,6 +2180,6 @@ PySys_FormatStderr(const char *format, ...)
va_list va;
va_start(va, format);
- sys_format("stderr", stderr, format, va);
+ sys_format(&PyId_stderr, stderr, format, va);
va_end(va);
}
generated by cgit v0.12 at 2025-10-31 09:35:12 (GMT)