mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
b420ed8248
This change gets the Python codebase into a state where it conforms to the conventions of this codebase. It's now possible to include headers from Python, without worrying about ordering. Python has traditionally solved that problem by "diamonding" everything in Python.h, but that's problematic since it means any change to any Python header invalidates all the build artifacts. Lastly it makes tooling not work. Since it is hard to explain to Emacs when I press C-c C-h to add an import line it shouldn't add the header that actually defines the symbol, and instead do follow the nonstandard Python convention. Progress has been made on letting Python load source code from the zip executable structure via the standard C library APIs. System calss now recognizes zip!FILENAME alternative URIs as equivalent to zip:FILENAME since Python uses colon as its delimiter. Some progress has been made on embedding the notice license terms into the Python object code. This is easier said than done since Python has an extremely complicated ownership story. - Some termios APIs have been added - Implement rewinddir() dirstream API - GetCpuCount() API added to Cosmopolitan Libc - More bugs in Cosmopolitan Libc have been fixed - zipobj.com now has flags for mangling the path - Fixed bug a priori with sendfile() on certain BSDs - Polyfill F_DUPFD and F_DUPFD_CLOEXEC across platforms - FIOCLEX / FIONCLEX now polyfilled for fast O_CLOEXEC changes - APE now supports a hybrid solution to no-self-modify for builds - Many BSD-only magnums added, e.g. O_SEARCH, O_SHLOCK, SF_NODISKIO
407 lines
12 KiB
C
407 lines
12 KiB
C
#include "third_party/python/Include/dictobject.h"
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#include "third_party/python/Include/listobject.h"
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#include "third_party/python/Include/longobject.h"
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#include "third_party/python/Include/methodobject.h"
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#include "third_party/python/Include/modsupport.h"
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#include "third_party/python/Include/object.h"
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#include "third_party/python/Include/objimpl.h"
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/* clang-format off */
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/* Use this file as a template to start implementing a module that
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also declares object types. All occurrences of 'Xxo' should be changed
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to something reasonable for your objects. After that, all other
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occurrences of 'xx' should be changed to something reasonable for your
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module. If your module is named foo your sourcefile should be named
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foomodule.c.
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You will probably want to delete all references to 'x_attr' and add
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your own types of attributes instead. Maybe you want to name your
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local variables other than 'self'. If your object type is needed in
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other files, you'll have to create a file "foobarobject.h"; see
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floatobject.h for an example. */
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/* Xxo objects */
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static PyObject *ErrorObject;
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typedef struct {
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PyObject_HEAD
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PyObject *x_attr; /* Attributes dictionary */
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} XxoObject;
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static PyTypeObject Xxo_Type;
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#define XxoObject_Check(v) (Py_TYPE(v) == &Xxo_Type)
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static XxoObject *
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newXxoObject(PyObject *arg)
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{
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XxoObject *self;
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self = PyObject_New(XxoObject, &Xxo_Type);
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if (self == NULL)
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return NULL;
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self->x_attr = NULL;
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return self;
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}
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/* Xxo methods */
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static void
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Xxo_dealloc(XxoObject *self)
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{
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Py_XDECREF(self->x_attr);
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PyObject_Del(self);
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}
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static PyObject *
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Xxo_demo(XxoObject *self, PyObject *args)
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{
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if (!PyArg_ParseTuple(args, ":demo"))
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return NULL;
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyMethodDef Xxo_methods[] = {
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{"demo", (PyCFunction)Xxo_demo, METH_VARARGS,
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PyDoc_STR("demo() -> None")},
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{NULL, NULL} /* sentinel */
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};
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static PyObject *
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Xxo_getattro(XxoObject *self, PyObject *name)
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{
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if (self->x_attr != NULL) {
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PyObject *v = PyDict_GetItem(self->x_attr, name);
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if (v != NULL) {
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Py_INCREF(v);
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return v;
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}
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}
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return PyObject_GenericGetAttr((PyObject *)self, name);
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}
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static int
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Xxo_setattr(XxoObject *self, const char *name, PyObject *v)
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{
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if (self->x_attr == NULL) {
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self->x_attr = PyDict_New();
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if (self->x_attr == NULL)
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return -1;
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}
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if (v == NULL) {
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int rv = PyDict_DelItemString(self->x_attr, name);
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if (rv < 0)
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PyErr_SetString(PyExc_AttributeError,
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"delete non-existing Xxo attribute");
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return rv;
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}
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else
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return PyDict_SetItemString(self->x_attr, name, v);
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}
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static PyTypeObject Xxo_Type = {
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/* The ob_type field must be initialized in the module init function
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* to be portable to Windows without using C++. */
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PyVarObject_HEAD_INIT(NULL, 0)
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"xxmodule.Xxo", /*tp_name*/
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sizeof(XxoObject), /*tp_basicsize*/
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0, /*tp_itemsize*/
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/* methods */
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(destructor)Xxo_dealloc, /*tp_dealloc*/
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0, /*tp_print*/
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(getattrfunc)0, /*tp_getattr*/
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(setattrfunc)Xxo_setattr, /*tp_setattr*/
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0, /*tp_reserved*/
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0, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_hash*/
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0, /*tp_call*/
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0, /*tp_str*/
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(getattrofunc)Xxo_getattro, /*tp_getattro*/
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0, /*tp_setattro*/
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0, /*tp_as_buffer*/
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Py_TPFLAGS_DEFAULT, /*tp_flags*/
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0, /*tp_doc*/
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0, /*tp_traverse*/
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0, /*tp_clear*/
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0, /*tp_richcompare*/
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0, /*tp_weaklistoffset*/
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0, /*tp_iter*/
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0, /*tp_iternext*/
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Xxo_methods, /*tp_methods*/
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0, /*tp_members*/
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0, /*tp_getset*/
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0, /*tp_base*/
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0, /*tp_dict*/
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0, /*tp_descr_get*/
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0, /*tp_descr_set*/
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0, /*tp_dictoffset*/
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0, /*tp_init*/
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0, /*tp_alloc*/
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0, /*tp_new*/
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0, /*tp_free*/
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0, /*tp_is_gc*/
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};
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/* --------------------------------------------------------------------- */
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/* Function of two integers returning integer */
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PyDoc_STRVAR(xx_foo_doc,
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"foo(i,j)\n\
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\n\
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Return the sum of i and j.");
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static PyObject *
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xx_foo(PyObject *self, PyObject *args)
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{
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long i, j;
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long res;
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if (!PyArg_ParseTuple(args, "ll:foo", &i, &j))
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return NULL;
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res = i+j; /* XXX Do something here */
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return PyLong_FromLong(res);
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}
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/* Function of no arguments returning new Xxo object */
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static PyObject *
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xx_new(PyObject *self, PyObject *args)
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{
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XxoObject *rv;
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if (!PyArg_ParseTuple(args, ":new"))
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return NULL;
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rv = newXxoObject(args);
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if (rv == NULL)
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return NULL;
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return (PyObject *)rv;
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}
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/* Example with subtle bug from extensions manual ("Thin Ice"). */
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static PyObject *
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xx_bug(PyObject *self, PyObject *args)
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{
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PyObject *list, *item;
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if (!PyArg_ParseTuple(args, "O:bug", &list))
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return NULL;
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item = PyList_GetItem(list, 0);
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/* Py_INCREF(item); */
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PyList_SetItem(list, 1, PyLong_FromLong(0L));
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PyObject_Print(item, stdout, 0);
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printf("\n");
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/* Py_DECREF(item); */
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Py_INCREF(Py_None);
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return Py_None;
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}
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/* Test bad format character */
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static PyObject *
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xx_roj(PyObject *self, PyObject *args)
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{
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PyObject *a;
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long b;
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if (!PyArg_ParseTuple(args, "O#:roj", &a, &b))
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return NULL;
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Py_INCREF(Py_None);
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return Py_None;
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}
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/* ---------- */
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static PyTypeObject Str_Type = {
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/* The ob_type field must be initialized in the module init function
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* to be portable to Windows without using C++. */
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PyVarObject_HEAD_INIT(NULL, 0)
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"xxmodule.Str", /*tp_name*/
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0, /*tp_basicsize*/
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0, /*tp_itemsize*/
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/* methods */
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0, /*tp_dealloc*/
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0, /*tp_print*/
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0, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_reserved*/
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0, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_hash*/
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0, /*tp_call*/
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0, /*tp_str*/
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0, /*tp_getattro*/
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0, /*tp_setattro*/
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0, /*tp_as_buffer*/
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
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0, /*tp_doc*/
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0, /*tp_traverse*/
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0, /*tp_clear*/
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0, /*tp_richcompare*/
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0, /*tp_weaklistoffset*/
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0, /*tp_iter*/
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0, /*tp_iternext*/
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0, /*tp_methods*/
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0, /*tp_members*/
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0, /*tp_getset*/
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0, /* see PyInit_xx */ /*tp_base*/
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0, /*tp_dict*/
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0, /*tp_descr_get*/
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0, /*tp_descr_set*/
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0, /*tp_dictoffset*/
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0, /*tp_init*/
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0, /*tp_alloc*/
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0, /*tp_new*/
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0, /*tp_free*/
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0, /*tp_is_gc*/
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};
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/* ---------- */
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static PyObject *
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null_richcompare(PyObject *self, PyObject *other, int op)
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{
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Py_INCREF(Py_NotImplemented);
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return Py_NotImplemented;
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}
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static PyTypeObject Null_Type = {
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/* The ob_type field must be initialized in the module init function
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* to be portable to Windows without using C++. */
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PyVarObject_HEAD_INIT(NULL, 0)
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"xxmodule.Null", /*tp_name*/
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0, /*tp_basicsize*/
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0, /*tp_itemsize*/
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/* methods */
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0, /*tp_dealloc*/
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0, /*tp_print*/
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0, /*tp_getattr*/
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0, /*tp_setattr*/
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0, /*tp_reserved*/
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0, /*tp_repr*/
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0, /*tp_as_number*/
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0, /*tp_as_sequence*/
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0, /*tp_as_mapping*/
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0, /*tp_hash*/
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0, /*tp_call*/
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0, /*tp_str*/
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0, /*tp_getattro*/
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0, /*tp_setattro*/
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0, /*tp_as_buffer*/
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Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
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0, /*tp_doc*/
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0, /*tp_traverse*/
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0, /*tp_clear*/
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null_richcompare, /*tp_richcompare*/
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0, /*tp_weaklistoffset*/
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0, /*tp_iter*/
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0, /*tp_iternext*/
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0, /*tp_methods*/
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0, /*tp_members*/
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0, /*tp_getset*/
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0, /* see PyInit_xx */ /*tp_base*/
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0, /*tp_dict*/
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0, /*tp_descr_get*/
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0, /*tp_descr_set*/
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0, /*tp_dictoffset*/
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0, /*tp_init*/
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0, /*tp_alloc*/
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0, /* see PyInit_xx */ /*tp_new*/
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0, /*tp_free*/
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0, /*tp_is_gc*/
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};
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/* ---------- */
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/* List of functions defined in the module */
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static PyMethodDef xx_methods[] = {
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{"roj", xx_roj, METH_VARARGS,
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PyDoc_STR("roj(a,b) -> None")},
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{"foo", xx_foo, METH_VARARGS,
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xx_foo_doc},
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{"new", xx_new, METH_VARARGS,
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PyDoc_STR("new() -> new Xx object")},
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{"bug", xx_bug, METH_VARARGS,
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PyDoc_STR("bug(o) -> None")},
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{NULL, NULL} /* sentinel */
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};
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PyDoc_STRVAR(module_doc,
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"This is a template module just for instruction.");
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static int
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xx_exec(PyObject *m)
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{
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/* Due to cross platform compiler issues the slots must be filled
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* here. It's required for portability to Windows without requiring
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* C++. */
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Null_Type.tp_base = &PyBaseObject_Type;
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Null_Type.tp_new = PyType_GenericNew;
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Str_Type.tp_base = &PyUnicode_Type;
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/* Finalize the type object including setting type of the new type
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* object; doing it here is required for portability, too. */
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if (PyType_Ready(&Xxo_Type) < 0)
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goto fail;
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/* Add some symbolic constants to the module */
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if (ErrorObject == NULL) {
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ErrorObject = PyErr_NewException("xx.error", NULL, NULL);
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if (ErrorObject == NULL)
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goto fail;
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}
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Py_INCREF(ErrorObject);
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PyModule_AddObject(m, "error", ErrorObject);
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/* Add Str */
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if (PyType_Ready(&Str_Type) < 0)
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goto fail;
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PyModule_AddObject(m, "Str", (PyObject *)&Str_Type);
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/* Add Null */
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if (PyType_Ready(&Null_Type) < 0)
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goto fail;
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PyModule_AddObject(m, "Null", (PyObject *)&Null_Type);
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return 0;
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fail:
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Py_XDECREF(m);
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return -1;
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}
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static struct PyModuleDef_Slot xx_slots[] = {
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{Py_mod_exec, xx_exec},
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{0, NULL},
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};
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static struct PyModuleDef xxmodule = {
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PyModuleDef_HEAD_INIT,
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"xx",
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module_doc,
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0,
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xx_methods,
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xx_slots,
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NULL,
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NULL,
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NULL
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};
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/* Export function for the module (*must* be called PyInit_xx) */
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PyMODINIT_FUNC
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PyInit_xx(void)
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{
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return PyModuleDef_Init(&xxmodule);
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}
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