1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
import os
import genapi
types = ['Generic','Number','Integer','SignedInteger','UnsignedInteger',
'Inexact',
'Floating', 'ComplexFloating', 'Flexible', 'Character',
'Byte','Short','Int', 'Long', 'LongLong', 'UByte', 'UShort',
'UInt', 'ULong', 'ULongLong', 'Float', 'Double', 'LongDouble',
'CFloat', 'CDouble', 'CLongDouble', 'Object', 'String', 'Unicode',
'Void']
h_template = r"""
#ifdef _MULTIARRAYMODULE
typedef struct {
PyObject_HEAD
npy_bool obval;
} PyBoolScalarObject;
static unsigned int PyArray_GetNDArrayCVersion (void);
static PyTypeObject PyBigArray_Type;
static PyTypeObject PyArray_Type;
static PyTypeObject PyArrayDescr_Type;
static PyTypeObject PyArrayFlags_Type;
static PyTypeObject PyArrayIter_Type;
static PyTypeObject PyArrayMapIter_Type;
static PyTypeObject PyArrayMultiIter_Type;
static int NPY_NUMUSERTYPES=0;
static PyTypeObject PyBoolArrType_Type;
static PyBoolScalarObject _PyArrayScalar_BoolValues[2];
%s
#else
#if defined(PY_ARRAY_UNIQUE_SYMBOL)
#define PyArray_API PY_ARRAY_UNIQUE_SYMBOL
#endif
#if defined(NO_IMPORT) || defined(NO_IMPORT_ARRAY)
extern void **PyArray_API;
#else
#if defined(PY_ARRAY_UNIQUE_SYMBOL)
void **PyArray_API;
#else
static void **PyArray_API=NULL;
#endif
#endif
#define PyArray_GetNDArrayCVersion (*(unsigned int (*)(void)) PyArray_API[0])
#define PyBigArray_Type (*(PyTypeObject *)PyArray_API[1])
#define PyArray_Type (*(PyTypeObject *)PyArray_API[2])
#define PyArrayDescr_Type (*(PyTypeObject *)PyArray_API[3])
#define PyArrayFlags_Type (*(PyTypeObject *)PyArray_API[4])
#define PyArrayIter_Type (*(PyTypeObject *)PyArray_API[5])
#define PyArrayMultiIter_Type (*(PyTypeObject *)PyArray_API[6])
#define NPY_NUMUSERTYPES (*(int *)PyArray_API[7])
#define PyBoolArrType_Type (*(PyTypeObject *)PyArray_API[8])
#define _PyArrayScalar_BoolValues ((PyBoolScalarObject *)PyArray_API[9])
%s
#if !defined(NO_IMPORT_ARRAY) && !defined(NO_IMPORT)
static int
_import_array(void)
{
PyObject *numpy = PyImport_ImportModule("numpy.core.multiarray");
PyObject *c_api = NULL;
if (numpy == NULL) return -1;
c_api = PyObject_GetAttrString(numpy, "_ARRAY_API");
if (c_api == NULL) {Py_DECREF(numpy); return -1;}
if (PyCObject_Check(c_api)) {
PyArray_API = (void **)PyCObject_AsVoidPtr(c_api);
}
Py_DECREF(c_api);
Py_DECREF(numpy);
if (PyArray_API == NULL) return -1;
/* Perform runtime check of C API version */
if (NPY_VERSION != PyArray_GetNDArrayCVersion()) {
PyErr_Format(PyExc_RuntimeError, "module compiled against "\
"version %%x of C-API but this version of numpy is %%x", \
(int) NPY_VERSION, (int) PyArray_GetNDArrayCVersion());
return -1;
}
return 0;
}
#define import_array() {if (_import_array() < 0) {PyErr_Print(); PyErr_SetString(PyExc_ImportError, "numpy.core.multiarray failed to import"); return; } }
#define import_array1(ret) {if (_import_array() < 0) {PyErr_Print(); PyErr_SetString(PyExc_ImportError, "numpy.core.multiarray failed to import"); return ret; } }
#define import_array2(msg, ret) {if (_import_array() < 0) {PyErr_Print(); PyErr_SetString(PyExc_ImportError, msg); return ret; } }
#endif
#endif
"""
c_template = r"""
/* These pointers will be stored in the C-object for use in other
extension modules
*/
void *PyArray_API[] = {
(void *) PyArray_GetNDArrayCVersion,
(void *) &PyBigArray_Type,
(void *) &PyArray_Type,
(void *) &PyArrayDescr_Type,
(void *) &PyArrayFlags_Type,
(void *) &PyArrayIter_Type,
(void *) &PyArrayMultiIter_Type,
(int *) &NPY_NUMUSERTYPES,
(void *) &PyBoolArrType_Type,
(void *) &_PyArrayScalar_BoolValues,
%s
};
"""
def generate_api(output_dir, force=False):
basename = 'multiarray_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 = ['array_api_order.txt', 'multiarray_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]
objectapi_list = genapi.get_api_functions('OBJECT_API',
sources[0])
multiapi_list = genapi.get_api_functions('MULTIARRAY_API',
sources[1])
# API fixes for __arrayobject_api.h
fixed = 10
numtypes = len(types) + fixed
numobject = len(objectapi_list) + numtypes
nummulti = len(multiapi_list)
numtotal = numobject + nummulti
module_list = []
extension_list = []
init_list = []
# setup types
for k, atype in enumerate(types):
num = fixed + k
astr = " (void *) &Py%sArrType_Type," % types[k]
init_list.append(astr)
astr = "static PyTypeObject Py%sArrType_Type;" % types[k]
module_list.append(astr)
astr = "#define Py%sArrType_Type (*(PyTypeObject *)PyArray_API[%d])" % \
(types[k], num)
extension_list.append(astr)
# set up object API
genapi.add_api_list(numtypes, 'PyArray_API', objectapi_list,
module_list, extension_list, init_list)
# set up multiarray module API
genapi.add_api_list(numobject, 'PyArray_API', multiapi_list,
module_list, extension_list, init_list)
# 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 C-API
===========
Object API
==========
''')
for func in objectapi_list:
fid.write(func.to_ReST())
fid.write('\n\n')
fid.write('''
Multiarray API
==============
''')
for func in multiapi_list:
fid.write(func.to_ReST())
fid.write('\n\n')
fid.close()
return targets
|
