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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/*
py/pyext - python external object for PD and Max/MSP
Copyright (c)2002-2005 Thomas Grill (gr@grrrr.org)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#include "pybase.h"
// function table for module
PyMethodDef pybase::func_tbl[] =
{
{ "_send", pybase::py_send, METH_VARARGS,"Send message to a named object" },
#ifdef FLEXT_THREADS
{ "_priority", pybase::py_priority, METH_VARARGS,"Set priority of current thread" },
#endif
{ "_arraysupport", pybase::py_arraysupport, METH_NOARGS,"Query Python array support" },
{ "_samplerate", pybase::py_samplerate, METH_NOARGS,"Get system sample rate" },
{ "_blocksize", pybase::py_blocksize, METH_NOARGS,"Get system block size" },
#if FLEXT_SYS == FLEXT_SYS_PD
{ "_getvalue", pybase::py_getvalue, METH_VARARGS,"Get value of a 'value' object" },
{ "_setvalue", pybase::py_setvalue, METH_VARARGS,"Set value of a 'value' object" },
#endif
{NULL, NULL, 0, NULL} // sentinel
};
const char *pybase::py_doc =
"py/pyext - python external object for PD and Max/MSP, (C)2002-2005 Thomas Grill\n"
"\n"
"This is the pyext module. Available function:\n"
"_send(args...): Send a message to a send symbol\n"
#ifdef FLEXT_THREADS
"_priority(int): Raise/lower thread priority\n"
#endif
"_samplerate(): Get system sample rate\n"
"_blocksize(): Get current blocksize\n"
"_getvalue(name): Get value of a 'value' object\n"
"_setvalue(name,float): Set value of a 'value' object\n"
;
#ifdef FLEXT_THREADS
void pybase::tick(void *)
{
Lock();
if(!thrcount) {
// all threads have stopped
shouldexit = false;
stoptick = 0;
}
else {
// still active threads
if(!--stoptick) {
post("py/pyext - Threads couldn't be stopped entirely - %i remaining",thrcount);
shouldexit = false;
}
else
// continue waiting
stoptmr.Delay(PY_STOP_TICK/1000.);
}
Unlock();
}
#endif
void pybase::m_stop(int argc,const t_atom *argv)
{
#ifdef FLEXT_THREADS
if(thrcount) {
Lock();
int wait = PY_STOP_WAIT;
if(argc >= 1 && CanbeInt(argv[0])) wait = GetAInt(argv[0]);
int ticks = wait/PY_STOP_TICK;
if(stoptick) {
// already stopping
if(ticks < stoptick) stoptick = ticks;
}
else
stoptick = ticks;
shouldexit = true;
stoptmr.Delay(PY_STOP_TICK/1000.);
Unlock();
}
#endif
}
PyObject *pybase::py_samplerate(PyObject *self,PyObject *args)
{
return PyFloat_FromDouble(sys_getsr());
}
PyObject *pybase::py_blocksize(PyObject *self,PyObject *args)
{
return PyLong_FromLong(sys_getblksize());
}
PyObject *pybase::py_send(PyObject *,PyObject *args)
{
// should always be a tuple
FLEXT_ASSERT(PyTuple_Check(args));
const int sz = PyTuple_GET_SIZE(args);
const t_symbol *recv;
if(
sz >= 1 &&
(recv = pyObject_AsSymbol(PyTuple_GET_ITEM(args,0))) != NULL
) {
PyObject *val;
#if 0
bool tp =
sz == 2 &&
PySequence_Check(
val = PyTuple_GET_ITEM(args,1) // borrowed ref
);
if(!tp)
val = PySequence_GetSlice(args,1,sz); // new ref
#else
if(sz == 2) {
val = PyTuple_GET_ITEM(args,1); // borrow reference
Py_INCREF(val);
}
else
val = PySequence_GetSlice(args,1,sz); // new ref
#endif
AtomListStatic<16> lst;
const t_symbol *sym = GetPyArgs(lst,val);
Py_DECREF(val);
if(sym) {
bool ok = Forward(recv,sym,lst.Count(),lst.Atoms());
#ifdef FLEXT_DEBUG
if(!ok)
post("py/pyext - Receiver doesn't exist");
#endif
Py_INCREF(Py_None);
return Py_None;
}
/*
else if(PyErr_Occurred())
PyErr_Print();
else
post("py/pyext - No data to send");
*/
else {
FLEXT_ASSERT(PyErr_Occurred());
return NULL;
}
}
/*
else
post("py/pyext - Send name is invalid");
*/
else {
PyErr_SetString(PyExc_ValueError,"py/pyext - Send name is invalid");
return NULL;
}
}
#ifdef FLEXT_THREADS
PyObject *pybase::py_priority(PyObject *self,PyObject *args)
{
int val;
if(!PyArg_ParseTuple(args, "i:py_priority", &val)) {
post("py/pyext - Syntax: _priority [int]");
}
else
RelPriority(val);
Py_INCREF(Py_None);
return Py_None;
}
#endif
#if FLEXT_SYS == FLEXT_SYS_PD
PyObject *pybase::py_getvalue(PyObject *self,PyObject *args)
{
FLEXT_ASSERT(PyTuple_Check(args));
const int sz = PyTuple_GET_SIZE(args);
const t_symbol *sym;
PyObject *ret;
if(
sz == 1 &&
(sym = pyObject_AsSymbol(PyTuple_GET_ITEM(args,0))) != NULL
) {
float f;
if(value_getfloat(const_cast<t_symbol *>(sym),&f)) {
post("py/pyext - Could not get value '%s'",GetString(sym));
Py_INCREF(Py_None);
ret = Py_None;
}
else
ret = PyFloat_FromDouble(f);
}
else {
post("py/pyext - Syntax: _getvalue [name]");
Py_INCREF(Py_None);
ret = Py_None;
}
return ret;
}
PyObject *pybase::py_setvalue(PyObject *self,PyObject *args)
{
FLEXT_ASSERT(PyTuple_Check(args));
const int sz = PyTuple_GET_SIZE(args);
const t_symbol *sym;
PyObject *val; // borrowed reference
if(
sz == 2 &&
(sym = pyObject_AsSymbol(PyTuple_GET_ITEM(args,0))) != NULL &&
PyNumber_Check(val = PyTuple_GET_ITEM(args,1))
) {
float f = (float)PyFloat_AsDouble(val);
if(value_setfloat(const_cast<t_symbol *>(sym),f))
post("py/pyext - Could not set value '%s'",GetString(sym));
}
else
post("py/pyext - Syntax: _setvalue [name] [value]");
Py_INCREF(Py_None);
return Py_None;
}
#endif
|
