add ydb deps

1 files changed, 363 insertions, 0 deletions

diff --git a/contrib/tools/python/src/Python/structmember.c b/contrib/tools/python/src/Python/structmember.c
new file mode 100644
index 0000000000..e347b51aac
--- /dev/null
+++ b/contrib/tools/python/src/Python/structmember.c
@@ -0,0 +1,363 @@
+
+/* Map C struct members to Python object attributes */
+
+#include "Python.h"
+
+#include "structmember.h"
+
+static PyObject *
+listmembers(struct memberlist *mlist)
+{
+    int i, n;
+    PyObject *v;
+    for (n = 0; mlist[n].name != NULL; n++)
+        ;
+    v = PyList_New(n);
+    if (v != NULL) {
+        for (i = 0; i < n; i++)
+            PyList_SetItem(v, i,
+                           PyString_FromString(mlist[i].name));
+        if (PyErr_Occurred()) {
+            Py_DECREF(v);
+            v = NULL;
+        }
+        else {
+            PyList_Sort(v);
+        }
+    }
+    return v;
+}
+
+PyObject *
+PyMember_Get(const char *addr, struct memberlist *mlist, const char *name)
+{
+    struct memberlist *l;
+
+    if (strcmp(name, "__members__") == 0)
+        return listmembers(mlist);
+    for (l = mlist; l->name != NULL; l++) {
+        if (strcmp(l->name, name) == 0) {
+            PyMemberDef copy;
+            copy.name = l->name;
+            copy.type = l->type;
+            copy.offset = l->offset;
+            copy.flags = l->flags;
+            copy.doc = NULL;
+            return PyMember_GetOne(addr, &copy);
+        }
+    }
+    PyErr_SetString(PyExc_AttributeError, name);
+    return NULL;
+}
+
+PyObject *
+PyMember_GetOne(const char *addr, PyMemberDef *l)
+{
+    PyObject *v;
+    if ((l->flags & READ_RESTRICTED) &&
+        PyEval_GetRestricted()) {
+        PyErr_SetString(PyExc_RuntimeError, "restricted attribute");
+        return NULL;
+    }
+    addr += l->offset;
+    switch (l->type) {
+    case T_BOOL:
+        v = PyBool_FromLong(*(char*)addr);
+        break;
+    case T_BYTE:
+        v = PyInt_FromLong(*(char*)addr);
+        break;
+    case T_UBYTE:
+        v = PyLong_FromUnsignedLong(*(unsigned char*)addr);
+        break;
+    case T_SHORT:
+        v = PyInt_FromLong(*(short*)addr);
+        break;
+    case T_USHORT:
+        v = PyLong_FromUnsignedLong(*(unsigned short*)addr);
+        break;
+    case T_INT:
+        v = PyInt_FromLong(*(int*)addr);
+        break;
+    case T_UINT:
+        v = PyLong_FromUnsignedLong(*(unsigned int*)addr);
+        break;
+    case T_LONG:
+        v = PyInt_FromLong(*(long*)addr);
+        break;
+    case T_ULONG:
+        v = PyLong_FromUnsignedLong(*(unsigned long*)addr);
+        break;
+    case T_PYSSIZET:
+        v = PyInt_FromSsize_t(*(Py_ssize_t*)addr);
+        break;
+    case T_FLOAT:
+        v = PyFloat_FromDouble((double)*(float*)addr);
+        break;
+    case T_DOUBLE:
+        v = PyFloat_FromDouble(*(double*)addr);
+        break;
+    case T_STRING:
+        if (*(char**)addr == NULL) {
+            Py_INCREF(Py_None);
+            v = Py_None;
+        }
+        else
+            v = PyString_FromString(*(char**)addr);
+        break;
+    case T_STRING_INPLACE:
+        v = PyString_FromString((char*)addr);
+        break;
+    case T_CHAR:
+        v = PyString_FromStringAndSize((char*)addr, 1);
+        break;
+    case T_OBJECT:
+        v = *(PyObject **)addr;
+        if (v == NULL)
+            v = Py_None;
+        Py_INCREF(v);
+        break;
+    case T_OBJECT_EX:
+        v = *(PyObject **)addr;
+        if (v == NULL)
+            PyErr_SetString(PyExc_AttributeError, l->name);
+        Py_XINCREF(v);
+        break;
+#ifdef HAVE_LONG_LONG
+    case T_LONGLONG:
+        v = PyLong_FromLongLong(*(PY_LONG_LONG *)addr);
+        break;
+    case T_ULONGLONG:
+        v = PyLong_FromUnsignedLongLong(*(unsigned PY_LONG_LONG *)addr);
+        break;
+#endif /* HAVE_LONG_LONG */
+    default:
+        PyErr_SetString(PyExc_SystemError, "bad memberdescr type");
+        v = NULL;
+    }
+    return v;
+}
+
+int
+PyMember_Set(char *addr, struct memberlist *mlist, const char *name, PyObject *v)
+{
+    struct memberlist *l;
+
+    for (l = mlist; l->name != NULL; l++) {
+        if (strcmp(l->name, name) == 0) {
+            PyMemberDef copy;
+            copy.name = l->name;
+            copy.type = l->type;
+            copy.offset = l->offset;
+            copy.flags = l->flags;
+            copy.doc = NULL;
+            return PyMember_SetOne(addr, &copy, v);
+        }
+    }
+
+    PyErr_SetString(PyExc_AttributeError, name);
+    return -1;
+}
+
+#define WARN(msg)                                       \
+    do {                                                \
+    if (PyErr_Warn(PyExc_RuntimeWarning, msg) < 0)      \
+        return -1;                                      \
+    } while (0)
+
+int
+PyMember_SetOne(char *addr, PyMemberDef *l, PyObject *v)
+{
+    PyObject *oldv;
+
+    addr += l->offset;
+
+    if ((l->flags & READONLY))
+    {
+        PyErr_SetString(PyExc_TypeError, "readonly attribute");
+        return -1;
+    }
+    if ((l->flags & PY_WRITE_RESTRICTED) && PyEval_GetRestricted()) {
+        PyErr_SetString(PyExc_RuntimeError, "restricted attribute");
+        return -1;
+    }
+    if (v == NULL) {
+        if (l->type == T_OBJECT_EX) {
+            /* Check if the attribute is set. */
+            if (*(PyObject **)addr == NULL) {
+                PyErr_SetString(PyExc_AttributeError, l->name);
+                return -1;
+            }
+        }
+        else if (l->type != T_OBJECT) {
+            PyErr_SetString(PyExc_TypeError,
+                            "can't delete numeric/char attribute");
+            return -1;
+        }
+    }
+    switch (l->type) {
+    case T_BOOL:{
+        if (!PyBool_Check(v)) {
+            PyErr_SetString(PyExc_TypeError,
+                            "attribute value type must be bool");
+            return -1;
+        }
+        if (v == Py_True)
+            *(char*)addr = (char) 1;
+        else
+            *(char*)addr = (char) 0;
+        break;
+        }
+    case T_BYTE:{
+        long long_val = PyInt_AsLong(v);
+        if ((long_val == -1) && PyErr_Occurred())
+            return -1;
+        *(char*)addr = (char)long_val;
+        /* XXX: For compatibility, only warn about truncations
+           for now. */
+        if ((long_val > CHAR_MAX) || (long_val < CHAR_MIN))
+            WARN("Truncation of value to char");
+        break;
+        }
+    case T_UBYTE:{
+        long long_val = PyInt_AsLong(v);
+        if ((long_val == -1) && PyErr_Occurred())
+            return -1;
+        *(unsigned char*)addr = (unsigned char)long_val;
+        if ((long_val > UCHAR_MAX) || (long_val < 0))
+            WARN("Truncation of value to unsigned char");
+        break;
+        }
+    case T_SHORT:{
+        long long_val = PyInt_AsLong(v);
+        if ((long_val == -1) && PyErr_Occurred())
+            return -1;
+        *(short*)addr = (short)long_val;
+        if ((long_val > SHRT_MAX) || (long_val < SHRT_MIN))
+            WARN("Truncation of value to short");
+        break;
+        }
+    case T_USHORT:{
+        long long_val = PyInt_AsLong(v);
+        if ((long_val == -1) && PyErr_Occurred())
+            return -1;
+        *(unsigned short*)addr = (unsigned short)long_val;
+        if ((long_val > USHRT_MAX) || (long_val < 0))
+            WARN("Truncation of value to unsigned short");
+        break;
+        }
+    case T_INT:{
+        long long_val = PyInt_AsLong(v);
+        if ((long_val == -1) && PyErr_Occurred())
+            return -1;
+        *(int *)addr = (int)long_val;
+        if ((long_val > INT_MAX) || (long_val < INT_MIN))
+            WARN("Truncation of value to int");
+        break;
+        }
+    case T_UINT:{
+        unsigned long ulong_val = PyLong_AsUnsignedLong(v);
+        if ((ulong_val == (unsigned long)-1) && PyErr_Occurred()) {
+            /* XXX: For compatibility, accept negative int values
+               as well. */
+            PyErr_Clear();
+            ulong_val = PyLong_AsLong(v);
+            if ((ulong_val == (unsigned long)-1) &&
+                PyErr_Occurred())
+                return -1;
+            *(unsigned int *)addr = (unsigned int)ulong_val;
+            WARN("Writing negative value into unsigned field");
+        } else
+            *(unsigned int *)addr = (unsigned int)ulong_val;
+        if (ulong_val > UINT_MAX)
+            WARN("Truncation of value to unsigned int");
+        break;
+        }
+    case T_LONG:{
+        *(long*)addr = PyLong_AsLong(v);
+        if ((*(long*)addr == -1) && PyErr_Occurred())
+            return -1;
+        break;
+        }
+    case T_ULONG:{
+        *(unsigned long*)addr = PyLong_AsUnsignedLong(v);
+        if ((*(unsigned long*)addr == (unsigned long)-1)
+            && PyErr_Occurred()) {
+            /* XXX: For compatibility, accept negative int values
+               as well. */
+            PyErr_Clear();
+            *(unsigned long*)addr = PyLong_AsLong(v);
+            if ((*(unsigned long*)addr == (unsigned long)-1)
+                && PyErr_Occurred())
+                return -1;
+            WARN("Writing negative value into unsigned field");
+        }
+        break;
+        }
+    case T_PYSSIZET:{
+        *(Py_ssize_t*)addr = PyInt_AsSsize_t(v);
+        if ((*(Py_ssize_t*)addr == (Py_ssize_t)-1)
+            && PyErr_Occurred())
+                        return -1;
+        break;
+        }
+    case T_FLOAT:{
+        double double_val = PyFloat_AsDouble(v);
+        if ((double_val == -1) && PyErr_Occurred())
+            return -1;
+        *(float*)addr = (float)double_val;
+        break;
+        }
+    case T_DOUBLE:
+        *(double*)addr = PyFloat_AsDouble(v);
+        if ((*(double*)addr == -1) && PyErr_Occurred())
+            return -1;
+        break;
+    case T_OBJECT:
+    case T_OBJECT_EX:
+        Py_XINCREF(v);
+        oldv = *(PyObject **)addr;
+        *(PyObject **)addr = v;
+        Py_XDECREF(oldv);
+        break;
+    case T_CHAR:
+        if (PyString_Check(v) && PyString_Size(v) == 1) {
+            *(char*)addr = PyString_AsString(v)[0];
+        }
+        else {
+            PyErr_BadArgument();
+            return -1;
+        }
+        break;
+    case T_STRING:
+    case T_STRING_INPLACE:
+        PyErr_SetString(PyExc_TypeError, "readonly attribute");
+        return -1;
+#ifdef HAVE_LONG_LONG
+    case T_LONGLONG:{
+        PY_LONG_LONG value;
+        *(PY_LONG_LONG*)addr = value = PyLong_AsLongLong(v);
+        if ((value == -1) && PyErr_Occurred())
+            return -1;
+        break;
+        }
+    case T_ULONGLONG:{
+        unsigned PY_LONG_LONG value;
+        /* ??? PyLong_AsLongLong accepts an int, but PyLong_AsUnsignedLongLong
+            doesn't ??? */
+        if (PyLong_Check(v))
+            *(unsigned PY_LONG_LONG*)addr = value = PyLong_AsUnsignedLongLong(v);
+        else
+            *(unsigned PY_LONG_LONG*)addr = value = PyInt_AsLong(v);
+        if ((value == (unsigned PY_LONG_LONG)-1) && PyErr_Occurred())
+            return -1;
+        break;
+        }
+#endif /* HAVE_LONG_LONG */
+    default:
+        PyErr_Format(PyExc_SystemError,
+                     "bad memberdescr type for %s", l->name);
+        return -1;
+    }
+    return 0;
+}