--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Python/modsupport.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,643 @@
+
+/* Module support implementation */
+
+#include "Python.h"
+
+#define FLAG_SIZE_T 1
+typedef double va_double;
+
+static PyObject *va_build_value(const char *, va_list, int);
+
+/* Package context -- the full module name for package imports */
+char *_Py_PackageContext = NULL;
+
+/* Py_InitModule4() parameters:
+ - name is the module name
+ - methods is the list of top-level functions
+ - doc is the documentation string
+ - passthrough is passed as self to functions defined in the module
+ - api_version is the value of PYTHON_API_VERSION at the time the
+ module was compiled
+
+ Return value is a borrowed reference to the module object; or NULL
+ if an error occurred (in Python 1.4 and before, errors were fatal).
+ Errors may still leak memory.
+*/
+
+static char api_version_warning[] =
+"Python C API version mismatch for module %.100s:\
+ This Python has API version %d, module %.100s has version %d.";
+
+PyObject *
+Py_InitModule4(const char *name, PyMethodDef *methods, const char *doc,
+ PyObject *passthrough, int module_api_version)
+{
+ PyObject *m, *d, *v, *n;
+ PyMethodDef *ml;
+ if (!Py_IsInitialized())
+ Py_FatalError("Interpreter not initialized (version mismatch?)");
+ if (module_api_version != PYTHON_API_VERSION) {
+ char message[512];
+ PyOS_snprintf(message, sizeof(message),
+ api_version_warning, name,
+ PYTHON_API_VERSION, name,
+ module_api_version);
+ if (PyErr_Warn(PyExc_RuntimeWarning, message))
+ return NULL;
+ }
+ /* Make sure name is fully qualified.
+
+ This is a bit of a hack: when the shared library is loaded,
+ the module name is "package.module", but the module calls
+ Py_InitModule*() with just "module" for the name. The shared
+ library loader squirrels away the true name of the module in
+ _Py_PackageContext, and Py_InitModule*() will substitute this
+ (if the name actually matches).
+ */
+ if (_Py_PackageContext != NULL) {
+ char *p = strrchr(_Py_PackageContext, '.');
+ if (p != NULL && strcmp(name, p+1) == 0) {
+ name = _Py_PackageContext;
+ _Py_PackageContext = NULL;
+ }
+ }
+ if ((m = PyImport_AddModule(name)) == NULL)
+ return NULL;
+ d = PyModule_GetDict(m);
+ if (methods != NULL) {
+ n = PyString_FromString(name);
+ if (n == NULL)
+ return NULL;
+ for (ml = methods; ml->ml_name != NULL; ml++) {
+ if ((ml->ml_flags & METH_CLASS) ||
+ (ml->ml_flags & METH_STATIC)) {
+ PyErr_SetString(PyExc_ValueError,
+ "module functions cannot set"
+ " METH_CLASS or METH_STATIC");
+ Py_DECREF(n);
+ return NULL;
+ }
+ v = PyCFunction_NewEx(ml, passthrough, n);
+ if (v == NULL) {
+ Py_DECREF(n);
+ return NULL;
+ }
+ if (PyDict_SetItemString(d, ml->ml_name, v) != 0) {
+ Py_DECREF(v);
+ Py_DECREF(n);
+ return NULL;
+ }
+ Py_DECREF(v);
+ }
+ Py_DECREF(n);
+ }
+ if (doc != NULL) {
+ v = PyString_FromString(doc);
+ if (v == NULL || PyDict_SetItemString(d, "__doc__", v) != 0) {
+ Py_XDECREF(v);
+ return NULL;
+ }
+ Py_DECREF(v);
+ }
+ return m;
+}
+
+
+/* Helper for mkvalue() to scan the length of a format */
+
+static int
+countformat(const char *format, int endchar)
+{
+ int count = 0;
+ int level = 0;
+ while (level > 0 || *format != endchar) {
+ switch (*format) {
+ case '\0':
+ /* Premature end */
+ PyErr_SetString(PyExc_SystemError,
+ "unmatched paren in format");
+ return -1;
+ case '(':
+ case '[':
+ case '{':
+ if (level == 0)
+ count++;
+ level++;
+ break;
+ case ')':
+ case ']':
+ case '}':
+ level--;
+ break;
+ case '#':
+ case '&':
+ case ',':
+ case ':':
+ case ' ':
+ case '\t':
+ break;
+ default:
+ if (level == 0)
+ count++;
+ }
+ format++;
+ }
+ return count;
+}
+
+
+/* Generic function to create a value -- the inverse of getargs() */
+/* After an original idea and first implementation by Steven Miale */
+
+static PyObject *do_mktuple(const char**, va_list *, int, int, int);
+static PyObject *do_mklist(const char**, va_list *, int, int, int);
+static PyObject *do_mkdict(const char**, va_list *, int, int, int);
+static PyObject *do_mkvalue(const char**, va_list *, int);
+
+
+static PyObject *
+do_mkdict(const char **p_format, va_list *p_va, int endchar, int n, int flags)
+{
+ PyObject *d;
+ int i;
+ int itemfailed = 0;
+ if (n < 0)
+ return NULL;
+ if ((d = PyDict_New()) == NULL)
+ return NULL;
+ /* Note that we can't bail immediately on error as this will leak
+ refcounts on any 'N' arguments. */
+ for (i = 0; i < n; i+= 2) {
+ PyObject *k, *v;
+ int err;
+ k = do_mkvalue(p_format, p_va, flags);
+ if (k == NULL) {
+ itemfailed = 1;
+ Py_INCREF(Py_None);
+ k = Py_None;
+ }
+ v = do_mkvalue(p_format, p_va, flags);
+ if (v == NULL) {
+ itemfailed = 1;
+ Py_INCREF(Py_None);
+ v = Py_None;
+ }
+ err = PyDict_SetItem(d, k, v);
+ Py_DECREF(k);
+ Py_DECREF(v);
+ if (err < 0 || itemfailed) {
+ Py_DECREF(d);
+ return NULL;
+ }
+ }
+ if (d != NULL && **p_format != endchar) {
+ Py_DECREF(d);
+ d = NULL;
+ PyErr_SetString(PyExc_SystemError,
+ "Unmatched paren in format");
+ }
+ else if (endchar)
+ ++*p_format;
+ return d;
+}
+
+static PyObject *
+do_mklist(const char **p_format, va_list *p_va, int endchar, int n, int flags)
+{
+ PyObject *v;
+ int i;
+ int itemfailed = 0;
+ if (n < 0)
+ return NULL;
+ v = PyList_New(n);
+ if (v == NULL)
+ return NULL;
+ /* Note that we can't bail immediately on error as this will leak
+ refcounts on any 'N' arguments. */
+ for (i = 0; i < n; i++) {
+ PyObject *w = do_mkvalue(p_format, p_va, flags);
+ if (w == NULL) {
+ itemfailed = 1;
+ Py_INCREF(Py_None);
+ w = Py_None;
+ }
+ PyList_SET_ITEM(v, i, w);
+ }
+
+ if (itemfailed) {
+ /* do_mkvalue() should have already set an error */
+ Py_DECREF(v);
+ return NULL;
+ }
+ if (**p_format != endchar) {
+ Py_DECREF(v);
+ PyErr_SetString(PyExc_SystemError,
+ "Unmatched paren in format");
+ return NULL;
+ }
+ if (endchar)
+ ++*p_format;
+ return v;
+}
+
+#ifdef Py_USING_UNICODE
+static int
+_ustrlen(Py_UNICODE *u)
+{
+ int i = 0;
+ Py_UNICODE *v = u;
+ while (*v != 0) { i++; v++; }
+ return i;
+}
+#endif
+
+static PyObject *
+do_mktuple(const char **p_format, va_list *p_va, int endchar, int n, int flags)
+{
+ PyObject *v;
+ int i;
+ int itemfailed = 0;
+ if (n < 0)
+ return NULL;
+ if ((v = PyTuple_New(n)) == NULL)
+ return NULL;
+ /* Note that we can't bail immediately on error as this will leak
+ refcounts on any 'N' arguments. */
+ for (i = 0; i < n; i++) {
+ PyObject *w = do_mkvalue(p_format, p_va, flags);
+ if (w == NULL) {
+ itemfailed = 1;
+ Py_INCREF(Py_None);
+ w = Py_None;
+ }
+ PyTuple_SET_ITEM(v, i, w);
+ }
+ if (itemfailed) {
+ /* do_mkvalue() should have already set an error */
+ Py_DECREF(v);
+ return NULL;
+ }
+ if (**p_format != endchar) {
+ Py_DECREF(v);
+ PyErr_SetString(PyExc_SystemError,
+ "Unmatched paren in format");
+ return NULL;
+ }
+ if (endchar)
+ ++*p_format;
+ return v;
+}
+
+static PyObject *
+do_mkvalue(const char **p_format, va_list *p_va, int flags)
+{
+ for (;;) {
+ switch (*(*p_format)++) {
+ case '(':
+ return do_mktuple(p_format, p_va, ')',
+ countformat(*p_format, ')'), flags);
+
+ case '[':
+ return do_mklist(p_format, p_va, ']',
+ countformat(*p_format, ']'), flags);
+
+ case '{':
+ return do_mkdict(p_format, p_va, '}',
+ countformat(*p_format, '}'), flags);
+
+ case 'b':
+ case 'B':
+ case 'h':
+ case 'i':
+ return PyInt_FromLong((long)va_arg(*p_va, int));
+
+ case 'H':
+ return PyInt_FromLong((long)va_arg(*p_va, unsigned int));
+
+ case 'I':
+ {
+ unsigned int n;
+ n = va_arg(*p_va, unsigned int);
+ if (n > (unsigned long)PyInt_GetMax())
+ return PyLong_FromUnsignedLong((unsigned long)n);
+ else
+ return PyInt_FromLong(n);
+ }
+
+ case 'n':
+#if SIZEOF_SIZE_T!=SIZEOF_LONG
+ return PyInt_FromSsize_t(va_arg(*p_va, Py_ssize_t));
+#endif
+ /* Fall through from 'n' to 'l' if Py_ssize_t is long */
+ case 'l':
+ return PyInt_FromLong(va_arg(*p_va, long));
+
+ case 'k':
+ {
+ unsigned long n;
+ n = va_arg(*p_va, unsigned long);
+ if (n > (unsigned long)PyInt_GetMax())
+ return PyLong_FromUnsignedLong(n);
+ else
+ return PyInt_FromLong(n);
+ }
+
+#ifdef HAVE_LONG_LONG
+ case 'L':
+ return PyLong_FromLongLong((PY_LONG_LONG)va_arg(*p_va, PY_LONG_LONG));
+
+ case 'K':
+ return PyLong_FromUnsignedLongLong((PY_LONG_LONG)va_arg(*p_va, unsigned PY_LONG_LONG));
+#endif
+#ifdef Py_USING_UNICODE
+ case 'u':
+ {
+ PyObject *v;
+ Py_UNICODE *u = va_arg(*p_va, Py_UNICODE *);
+ Py_ssize_t n;
+ if (**p_format == '#') {
+ ++*p_format;
+ if (flags & FLAG_SIZE_T)
+ n = va_arg(*p_va, Py_ssize_t);
+ else
+ n = va_arg(*p_va, int);
+ }
+ else
+ n = -1;
+ if (u == NULL) {
+ v = Py_None;
+ Py_INCREF(v);
+ }
+ else {
+ if (n < 0)
+ n = _ustrlen(u);
+ v = PyUnicode_FromUnicode(u, n);
+ }
+ return v;
+ }
+#endif
+ case 'f':
+ case 'd':
+ return PyFloat_FromDouble(
+ (double)va_arg(*p_va, va_double));
+
+#ifndef WITHOUT_COMPLEX
+ case 'D':
+ return PyComplex_FromCComplex(
+ *((Py_complex *)va_arg(*p_va, Py_complex *)));
+#endif /* WITHOUT_COMPLEX */
+
+ case 'c':
+ {
+ char p[1];
+ p[0] = (char)va_arg(*p_va, int);
+ return PyString_FromStringAndSize(p, 1);
+ }
+
+ case 's':
+ case 'z':
+ {
+ PyObject *v;
+ char *str = va_arg(*p_va, char *);
+ Py_ssize_t n;
+ if (**p_format == '#') {
+ ++*p_format;
+ if (flags & FLAG_SIZE_T)
+ n = va_arg(*p_va, Py_ssize_t);
+ else
+ n = va_arg(*p_va, int);
+ }
+ else
+ n = -1;
+ if (str == NULL) {
+ v = Py_None;
+ Py_INCREF(v);
+ }
+ else {
+ if (n < 0) {
+ size_t m = strlen(str);
+ if (m > PY_SSIZE_T_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "string too long for Python string");
+ return NULL;
+ }
+ n = (Py_ssize_t)m;
+ }
+ v = PyString_FromStringAndSize(str, n);
+ }
+ return v;
+ }
+
+ case 'N':
+ case 'S':
+ case 'O':
+ if (**p_format == '&') {
+ typedef PyObject *(*converter)(void *);
+ converter func = va_arg(*p_va, converter);
+ void *arg = va_arg(*p_va, void *);
+ ++*p_format;
+ return (*func)(arg);
+ }
+ else {
+ PyObject *v;
+ v = va_arg(*p_va, PyObject *);
+ if (v != NULL) {
+ if (*(*p_format - 1) != 'N')
+ Py_INCREF(v);
+ }
+ else if (!PyErr_Occurred())
+ /* If a NULL was passed
+ * because a call that should
+ * have constructed a value
+ * failed, that's OK, and we
+ * pass the error on; but if
+ * no error occurred it's not
+ * clear that the caller knew
+ * what she was doing. */
+ PyErr_SetString(PyExc_SystemError,
+ "NULL object passed to Py_BuildValue");
+ return v;
+ }
+
+ case ':':
+ case ',':
+ case ' ':
+ case '\t':
+ break;
+
+ default:
+ PyErr_SetString(PyExc_SystemError,
+ "bad format char passed to Py_BuildValue");
+ return NULL;
+
+ }
+ }
+}
+
+
+PyObject *
+Py_BuildValue(const char *format, ...)
+{
+ va_list va;
+ PyObject* retval;
+ va_start(va, format);
+ retval = va_build_value(format, va, 0);
+ va_end(va);
+ return retval;
+}
+
+PyObject *
+_Py_BuildValue_SizeT(const char *format, ...)
+{
+ va_list va;
+ PyObject* retval;
+ va_start(va, format);
+ retval = va_build_value(format, va, FLAG_SIZE_T);
+ va_end(va);
+ return retval;
+}
+
+PyObject *
+Py_VaBuildValue(const char *format, va_list va)
+{
+ return va_build_value(format, va, 0);
+}
+
+PyObject *
+_Py_VaBuildValue_SizeT(const char *format, va_list va)
+{
+ return va_build_value(format, va, FLAG_SIZE_T);
+}
+
+static PyObject *
+va_build_value(const char *format, va_list va, int flags)
+{
+ const char *f = format;
+ int n = countformat(f, '\0');
+ va_list lva;
+
+#ifdef VA_LIST_IS_ARRAY
+ memcpy(lva, va, sizeof(va_list));
+#else
+#ifdef __va_copy
+ __va_copy(lva, va);
+#else
+ lva = va;
+#endif
+#endif
+
+ if (n < 0)
+ return NULL;
+ if (n == 0) {
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+ if (n == 1)
+ return do_mkvalue(&f, &lva, flags);
+ return do_mktuple(&f, &lva, '\0', n, flags);
+}
+
+
+PyObject *
+PyEval_CallFunction(PyObject *obj, const char *format, ...)
+{
+ va_list vargs;
+ PyObject *args;
+ PyObject *res;
+
+ va_start(vargs, format);
+
+ args = Py_VaBuildValue(format, vargs);
+ va_end(vargs);
+
+ if (args == NULL)
+ return NULL;
+
+ res = PyEval_CallObject(obj, args);
+ Py_DECREF(args);
+
+ return res;
+}
+
+
+PyObject *
+PyEval_CallMethod(PyObject *obj, const char *methodname, const char *format, ...)
+{
+ va_list vargs;
+ PyObject *meth;
+ PyObject *args;
+ PyObject *res;
+
+ meth = PyObject_GetAttrString(obj, methodname);
+ if (meth == NULL)
+ return NULL;
+
+ va_start(vargs, format);
+
+ args = Py_VaBuildValue(format, vargs);
+ va_end(vargs);
+
+ if (args == NULL) {
+ Py_DECREF(meth);
+ return NULL;
+ }
+
+ res = PyEval_CallObject(meth, args);
+ Py_DECREF(meth);
+ Py_DECREF(args);
+
+ return res;
+}
+
+int
+PyModule_AddObject(PyObject *m, const char *name, PyObject *o)
+{
+ PyObject *dict;
+ if (!PyModule_Check(m)) {
+ PyErr_SetString(PyExc_TypeError,
+ "PyModule_AddObject() needs module as first arg");
+ return -1;
+ }
+ if (!o) {
+ if (!PyErr_Occurred())
+ PyErr_SetString(PyExc_TypeError,
+ "PyModule_AddObject() needs non-NULL value");
+ return -1;
+ }
+
+ dict = PyModule_GetDict(m);
+ if (dict == NULL) {
+ /* Internal error -- modules must have a dict! */
+ PyErr_Format(PyExc_SystemError, "module '%s' has no __dict__",
+ PyModule_GetName(m));
+ return -1;
+ }
+ if (PyDict_SetItemString(dict, name, o))
+ return -1;
+ Py_DECREF(o);
+ return 0;
+}
+
+int
+PyModule_AddIntConstant(PyObject *m, const char *name, long value)
+{
+ PyObject *o = PyInt_FromLong(value);
+ if (!o)
+ return -1;
+ if (PyModule_AddObject(m, name, o) == 0)
+ return 0;
+ Py_DECREF(o);
+ return -1;
+}
+
+int
+PyModule_AddStringConstant(PyObject *m, const char *name, const char *value)
+{
+ PyObject *o = PyString_FromString(value);
+ if (!o)
+ return -1;
+ if (PyModule_AddObject(m, name, o) == 0)
+ return 0;
+ Py_DECREF(o);
+ return -1;
+}