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from __future__ import division, print_function
import os
import genapi
import numpy_api
from genapi import \
TypeApi, GlobalVarApi, FunctionApi, BoolValuesApi
h_template = r"""
#ifdef _UMATHMODULE
extern NPY_NO_EXPORT PyTypeObject PyUFunc_Type;
%s
#else
#if defined(PY_UFUNC_UNIQUE_SYMBOL)
#define PyUFunc_API PY_UFUNC_UNIQUE_SYMBOL
#endif
#if defined(NO_IMPORT) || defined(NO_IMPORT_UFUNC)
extern void **PyUFunc_API;
#else
#if defined(PY_UFUNC_UNIQUE_SYMBOL)
void **PyUFunc_API;
#else
static void **PyUFunc_API=NULL;
#endif
#endif
%s
static NPY_INLINE int
_import_umath(void)
{
PyObject *numpy = PyImport_ImportModule("numpy.core.umath");
PyObject *c_api = NULL;
if (numpy == NULL) {
PyErr_SetString(PyExc_ImportError, "numpy.core.umath failed to import");
return -1;
}
c_api = PyObject_GetAttrString(numpy, "_UFUNC_API");
Py_DECREF(numpy);
if (c_api == NULL) {
PyErr_SetString(PyExc_AttributeError, "_UFUNC_API not found");
return -1;
}
#if PY_VERSION_HEX >= 0x03000000
if (!PyCapsule_CheckExact(c_api)) {
PyErr_SetString(PyExc_RuntimeError, "_UFUNC_API is not PyCapsule object");
Py_DECREF(c_api);
return -1;
}
PyUFunc_API = (void **)PyCapsule_GetPointer(c_api, NULL);
#else
if (!PyCObject_Check(c_api)) {
PyErr_SetString(PyExc_RuntimeError, "_UFUNC_API is not PyCObject object");
Py_DECREF(c_api);
return -1;
}
PyUFunc_API = (void **)PyCObject_AsVoidPtr(c_api);
#endif
Py_DECREF(c_api);
if (PyUFunc_API == NULL) {
PyErr_SetString(PyExc_RuntimeError, "_UFUNC_API is NULL pointer");
return -1;
}
return 0;
}
#if PY_VERSION_HEX >= 0x03000000
#define NUMPY_IMPORT_UMATH_RETVAL NULL
#else
#define NUMPY_IMPORT_UMATH_RETVAL
#endif
#define import_umath() \
do {\
UFUNC_NOFPE\
if (_import_umath() < 0) {\
PyErr_Print();\
PyErr_SetString(PyExc_ImportError,\
"numpy.core.umath failed to import");\
return NUMPY_IMPORT_UMATH_RETVAL;\
}\
} while(0)
#define import_umath1(ret) \
do {\
UFUNC_NOFPE\
if (_import_umath() < 0) {\
PyErr_Print();\
PyErr_SetString(PyExc_ImportError,\
"numpy.core.umath failed to import");\
return ret;\
}\
} while(0)
#define import_umath2(ret, msg) \
do {\
UFUNC_NOFPE\
if (_import_umath() < 0) {\
PyErr_Print();\
PyErr_SetString(PyExc_ImportError, msg);\
return ret;\
}\
} while(0)
#define import_ufunc() \
do {\
UFUNC_NOFPE\
if (_import_umath() < 0) {\
PyErr_Print();\
PyErr_SetString(PyExc_ImportError,\
"numpy.core.umath failed to import");\
}\
} while(0)
#endif
"""
c_template = r"""
/* These pointers will be stored in the C-object for use in other
extension modules
*/
void *PyUFunc_API[] = {
%s
};
"""
def generate_api(output_dir, force=False):
basename = 'ufunc_api'
h_file = os.path.join(output_dir, '__%s.h' % basename)
c_file = os.path.join(output_dir, '__%s.c' % basename)
d_file = os.path.join(output_dir, '%s.txt' % basename)
targets = (h_file, c_file, d_file)
sources = ['ufunc_api_order.txt']
if (not force and not genapi.should_rebuild(targets, sources + [__file__])):
return targets
else:
do_generate_api(targets, sources)
return targets
def do_generate_api(targets, sources):
header_file = targets[0]
c_file = targets[1]
doc_file = targets[2]
ufunc_api_index = genapi.merge_api_dicts((
numpy_api.ufunc_funcs_api,
numpy_api.ufunc_types_api))
genapi.check_api_dict(ufunc_api_index)
ufunc_api_list = genapi.get_api_functions('UFUNC_API', numpy_api.ufunc_funcs_api)
# Create dict name -> *Api instance
ufunc_api_dict = {}
api_name = 'PyUFunc_API'
for f in ufunc_api_list:
name = f.name
index = ufunc_api_index[name][0]
annotations = ufunc_api_index[name][1:]
ufunc_api_dict[name] = FunctionApi(f.name, index, annotations,
f.return_type, f.args, api_name)
for name, val in numpy_api.ufunc_types_api.items():
index = val[0]
ufunc_api_dict[name] = TypeApi(name, index, 'PyTypeObject', api_name)
# set up object API
module_list = []
extension_list = []
init_list = []
for name, index in genapi.order_dict(ufunc_api_index):
api_item = ufunc_api_dict[name]
extension_list.append(api_item.define_from_array_api_string())
init_list.append(api_item.array_api_define())
module_list.append(api_item.internal_define())
# Write to header
fid = open(header_file, 'w')
s = h_template % ('\n'.join(module_list), '\n'.join(extension_list))
fid.write(s)
fid.close()
# Write to c-code
fid = open(c_file, 'w')
s = c_template % ',\n'.join(init_list)
fid.write(s)
fid.close()
# Write to documentation
fid = open(doc_file, 'w')
fid.write('''
=================
NumPy Ufunc C-API
=================
''')
for func in ufunc_api_list:
fid.write(func.to_ReST())
fid.write('\n\n')
fid.close()
return targets
|
