+++ /dev/null
-#!/usr/bin/python
-
-import sys,os
-
-import idl
-
-(TYPE_DEFBOOL, TYPE_BOOL, TYPE_INT, TYPE_UINT, TYPE_STRING, TYPE_ARRAY, TYPE_AGGREGATE) = range(7)
-
-def py_type(ty):
- if ty == idl.bool:
- return TYPE_BOOL
- if ty.typename == "libxl_defbool":
- return TYPE_DEFBOOL
- if isinstance(ty, idl.Enumeration):
- return TYPE_UINT
- if isinstance(ty, idl.Number):
- if ty.signed:
- return TYPE_INT
- else:
- return TYPE_UINT
- if isinstance(ty, idl.Array):
- return TYPE_ARRAY
- if isinstance(ty, idl.Aggregate):
- return TYPE_AGGREGATE
- if ty == idl.string:
- return TYPE_STRING
- return None
-
-def py_wrapstruct(ty):
- l = []
- l.append('typedef struct {')
- l.append(' PyObject_HEAD;')
- l.append(' %s obj;'%ty.typename);
- l.append('}Py_%s;'%ty.rawname)
- l.append('')
- return "\n".join(l) + "\n"
-
-def fsanitize(name):
- "Sanitise a function name given a C type"
- ret = '_'.join(name.split())
- return ret.replace('*', 'ptr')
-
-def py_decls(ty):
- l = []
- if isinstance(ty, idl.Aggregate):
- l.append('_hidden Py_%s *Py%s_New(void);\n'%(ty.rawname, ty.rawname))
- l.append('_hidden int Py%s_Check(PyObject *self);\n'%ty.rawname)
- for f in ty.fields:
- if py_type(f.type) is not None:
- continue
- if py_type(f.type) == TYPE_DEFBOOL:
- continue
- if ty.marshal_out():
- l.append('_hidden PyObject *attrib__%s_get(%s *%s);'%(\
- fsanitize(f.type.typename), f.type.typename, f.name))
- if ty.marshal_in():
- l.append('_hidden int attrib__%s_set(PyObject *v, %s *%s);'%(\
- fsanitize(f.type.typename), f.type.typename, f.name))
- return '\n'.join(l) + "\n"
-
-def py_attrib_get(ty, f):
- t = py_type(f.type)
- l = []
- l.append('static PyObject *py_%s_%s_get(Py_%s *self, void *priv)'%(ty.rawname, f.name, ty.rawname))
- l.append('{')
- if t == TYPE_BOOL:
- l.append(' PyObject *ret;')
- l.append(' ret = (self->obj.%s) ? Py_True : Py_False;'%f.name)
- l.append(' Py_INCREF(ret);')
- l.append(' return ret;')
- elif t == TYPE_DEFBOOL:
- l.append(' return genwrap__defbool_get(&self->obj.%s);'%f.name)
- elif t == TYPE_INT:
- l.append(' return genwrap__ll_get(self->obj.%s);'%f.name)
- elif t == TYPE_UINT:
- l.append(' return genwrap__ull_get(self->obj.%s);'%f.name)
- elif t == TYPE_STRING:
- l.append(' return genwrap__string_get(&self->obj.%s);'%f.name)
- elif t == TYPE_AGGREGATE or t == TYPE_ARRAY:
- l.append(' PyErr_SetString(PyExc_NotImplementedError, "Getting %s");'%ty.typename)
- l.append(' return NULL;')
- else:
- tn = f.type.typename
- l.append(' return attrib__%s_get((%s *)&self->obj.%s);'%(fsanitize(tn), tn, f.name))
- l.append('}')
- return '\n'.join(l) + "\n\n"
-
-def py_attrib_set(ty, f):
- t = py_type(f.type)
- l = []
- l.append('static int py_%s_%s_set(Py_%s *self, PyObject *v, void *priv)'%(ty.rawname, f.name, ty.rawname))
- l.append('{')
- if t == TYPE_BOOL:
- l.append(' self->obj.%s = (NULL == v || Py_None == v || Py_False == v) ? 0 : 1;'%f.name)
- l.append(' return 0;')
- elif t == TYPE_DEFBOOL:
- l.append(' return genwrap__defbool_set(v, &self->obj.%s);'%f.name)
- elif t == TYPE_UINT or t == TYPE_INT:
- l.append(' %slong long tmp;'%(t == TYPE_UINT and 'unsigned ' or ''))
- l.append(' int ret;')
- if t == TYPE_UINT:
- l.append(' ret = genwrap__ull_set(v, &tmp, (%s)~0);'%f.type.typename)
- else:
- l.append(' ret = genwrap__ll_set(v, &tmp, (%s)~0);'%f.type.typename)
- l.append(' if ( ret >= 0 )')
- l.append(' self->obj.%s = tmp;'%f.name)
- l.append(' return ret;')
- elif t == TYPE_STRING:
- l.append(' return genwrap__string_set(v, &self->obj.%s);'%f.name)
- elif t == TYPE_AGGREGATE or t == TYPE_ARRAY:
- l.append(' PyErr_SetString(PyExc_NotImplementedError, "Setting %s");'%ty.typename)
- l.append(' return -1;')
- else:
- tn = f.type.typename
- l.append(' return attrib__%s_set(v, (%s *)&self->obj.%s);'%(fsanitize(tn), tn, f.name))
- l.append('}')
- return '\n'.join(l) + "\n\n"
-
-def py_object_def(ty):
- l = []
- if ty.dispose_fn is not None:
- dtor = ' %s(&self->obj);\n'%ty.dispose_fn
- else:
- dtor = ''
-
- funcs="""static void Py%(rawname)s_dealloc(Py_%(rawname)s *self)
-{
-%(dtor)s self->ob_type->tp_free((PyObject *)self);
-}
-
-static int Py%(rawname)s_init(Py_%(rawname)s *self, PyObject *args, PyObject *kwds)
-{
- memset(&self->obj, 0, sizeof(self->obj));
- return genwrap__obj_init((PyObject *)self, args, kwds);
-}
-
-static PyObject *Py%(rawname)s_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
-{
- Py_%(rawname)s *self = (Py_%(rawname)s *)type->tp_alloc(type, 0);
- if (self == NULL)
- return NULL;
- memset(&self->obj, 0, sizeof(self->obj));
- return (PyObject *)self;
-}
-
-"""%{'rawname': ty.rawname, 'dtor': dtor}
-
- l.append('static PyGetSetDef Py%s_getset[] = {'%ty.rawname)
- for f in ty.fields:
- if f.type.private:
- continue
- l.append(' { .name = "%s", '%f.name)
- if ty.marshal_out():
- l.append(' .get = (getter)py_%s_%s_get, '%(ty.rawname, f.name))
- else:
- l.append(' .get = (getter)NULL, ')
- if ty.marshal_in():
- l.append(' .set = (setter)py_%s_%s_set,'%(ty.rawname, f.name))
- else:
- l.append(' .set = (setter)NULL,')
- l.append(' },')
- l.append(' { .name = NULL }')
- l.append('};')
- struct="""
-static PyTypeObject Py%s_Type= {
- PyObject_HEAD_INIT(NULL)
- 0,
- PKG ".%s",
- sizeof(Py_%s),
- 0,
- (destructor)Py%s_dealloc, /* tp_dealloc */
- NULL, /* tp_print */
- NULL, /* tp_getattr */
- NULL, /* tp_setattr */
- NULL, /* tp_compare */
- NULL, /* tp_repr */
- NULL, /* tp_as_number */
- NULL, /* tp_as_sequence */
- NULL, /* tp_as_mapping */
- NULL, /* tp_hash */
- NULL, /* tp_call */
- NULL, /* tp_str */
- NULL, /* tp_getattro */
- NULL, /* tp_setattro */
- NULL, /* tp_as_buffer */
- Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */
- "%s", /* tp_doc */
- NULL, /* tp_traverse */
- NULL, /* tp_clear */
- NULL, /* tp_richcompare */
- 0, /* tp_weaklistoffset */
- NULL, /* tp_iter */
- NULL, /* tp_iternext */
- NULL, /* tp_methods */
- NULL, /* tp_members */
- Py%s_getset, /* tp_getset */
- NULL, /* tp_base */
- NULL, /* tp_dict */
- NULL, /* tp_descr_get */
- NULL, /* tp_descr_set */
- 0, /* tp_dictoffset */
- (initproc)Py%s_init, /* tp_init */
- NULL, /* tp_alloc */
- Py%s_new, /* tp_new */
-};
-
-Py_%s *Py%s_New(void)
-{
- return (Py_%s *)Py%s_new(&Py%s_Type, NULL, NULL);
-}
-
-int Py%s_Check(PyObject *self)
-{
- return (self->ob_type == &Py%s_Type);
-}
-"""%tuple(ty.rawname for x in range(15))
- return funcs + '\n'.join(l) + "\n" + struct
-
-def py_initfuncs(types):
- l = []
- l.append('void genwrap__init(PyObject *m)')
- l.append('{')
- for ty in types:
- if isinstance(ty, idl.Enumeration):
- for v in ty.values:
- l.append(' PyModule_AddIntConstant(m, "%s", %s);' % (v.rawname, v.name))
- elif isinstance(ty, idl.Aggregate):
- l.append(' if (PyType_Ready(&Py%s_Type) >= 0) {'%ty.rawname)
- l.append(' Py_INCREF(&Py%s_Type);'%ty.rawname)
- l.append(' PyModule_AddObject(m, "%s", (PyObject *)&Py%s_Type);'%(ty.rawname, ty.rawname))
- l.append(' }')
- else:
- raise NotImplementedError("unknown type %s (%s)" % (ty.typename, type(ty)))
-
- l.append('}')
- return '\n'.join(l) + "\n\n"
-
-def tree_frob(types):
- ret = types[:]
- for ty in [ty for ty in ret if isinstance(ty, idl.Aggregate)]:
- ty.fields = filter(lambda f:f.name is not None and f.type.typename is not None, ty.fields)
- return ret
-
-if __name__ == '__main__':
- if len(sys.argv) < 4:
- print >>sys.stderr, "Usage: genwrap.py <idl> <decls> <defns>"
- sys.exit(1)
-
- (_,types) = idl.parse(sys.argv[1])
-
- types = tree_frob(types)
-
- decls = sys.argv[2]
- f = open(decls, 'w')
- f.write("""#ifndef __PYXL_TYPES_H
-#define __PYXL_TYPES_H
-
-/*
- * DO NOT EDIT.
- *
- * This file is autogenerated by
- * "%s"
- */
-
-#define PKG "xen.lowlevel.xl"
-
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
-#define _hidden __attribute__((visibility("hidden")))
-#define _protected __attribute__((visibility("protected")))
-#else
-#define _hidden
-#define _protected
-#endif
-
-/* Initialise all types */
-_hidden void genwrap__init(PyObject *m);
-
-/* Generic type initialiser */
-_hidden int genwrap__obj_init(PyObject *self, PyObject *args, PyObject *kwds);
-
-/* Auto-generated get/set functions for simple data-types */
-_hidden int genwrap__string_set(PyObject *v, char **str);
-_hidden PyObject *genwrap__string_get(char **str);
-_hidden PyObject *genwrap__ull_get(unsigned long long val);
-_hidden int genwrap__ull_set(PyObject *v, unsigned long long *val, unsigned long long mask);
-_hidden PyObject *genwrap__ll_get(long long val);
-_hidden int genwrap__ll_set(PyObject *v, long long *val, long long mask);
-_hidden PyObject *genwrap__defbool_get(libxl_defbool *db);
-_hidden int genwrap__defbool_set(PyObject *v, libxl_defbool *db);
-
-""" % " ".join(sys.argv))
- for ty in [ty for ty in types if isinstance(ty, idl.Aggregate)]:
- f.write('/* Internal API for %s wrapper */\n'%ty.typename)
- f.write(py_wrapstruct(ty))
- f.write(py_decls(ty))
- f.write('\n')
- f.write('#endif /* __PYXL_TYPES_H */\n')
- f.close()
-
- defns = sys.argv[3]
- f = open(defns, 'w')
- f.write("""/*
- * DO NOT EDIT.
- *
- * This file is autogenerated by
- * "%s"
- */
-
-#include <Python.h>
-#include <string.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include "libxl.h" /* gah */
-#include "%s"
-
-""" % tuple((' '.join(sys.argv),) + (os.path.split(decls)[-1:]),))
- for ty in types:
- if ty.private:
- continue
- if isinstance(ty, idl.Aggregate):
- f.write('/* Attribute get/set functions for %s */\n'%ty.typename)
- for a in ty.fields:
- if a.type.private:
- continue
- if ty.marshal_out():
- f.write(py_attrib_get(ty,a))
- if ty.marshal_in():
- f.write(py_attrib_set(ty,a))
- f.write(py_object_def(ty))
- f.write(py_initfuncs(types))
- f.close()
projects / people / liuw / libxenctrl-split / xen.git / commitdiff