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/*
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 "main.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;
bool tp =
sz == 2 &&
PySequence_Check(
val = PyTuple_GET_ITEM(args,1) // borrowed ref
);
if(!tp)
val = PySequence_GetSlice(args,1,sz); // new ref
AtomListStatic<16> lst;
if(GetPyArgs(lst,val)) {
bool ok;
if(lst.Count() && IsSymbol(lst[0]))
ok = Forward(recv,GetSymbol(lst[0]),lst.Count()-1,lst.Atoms()+1);
else
ok = Forward(recv,lst);
#ifdef FLEXT_DEBUG
if(!ok)
post("py/pyext - Receiver doesn't exist");
#endif
}
else if(PyErr_Occurred())
PyErr_Print();
else
post("py/pyext - No data to send");
if(!tp) Py_DECREF(val);
}
else
post("py/pyext - Send name is invalid");
Py_INCREF(Py_None);
return Py_None;
}
#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
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