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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 py::func_tbl[] =
{
{ "_send", py::py_send, METH_VARARGS,"Send message to a named object" },
#ifdef FLEXT_THREADS
{ "_priority", py::py_priority, METH_VARARGS,"Set priority of current thread" },
#endif
{ "_samplerate", py::py_samplerate, METH_NOARGS,"Get system sample rate" },
{ "_blocksize", py::py_blocksize, METH_NOARGS,"Get system block size" },
#if FLEXT_SYS == FLEXT_SYS_PD
{ "_getvalue", py::py_getvalue, METH_VARARGS,"Get value of a 'value' object" },
{ "_setvalue", py::py_setvalue, METH_VARARGS,"Set value of a 'value' object" },
#endif
{NULL, NULL, 0, NULL} // sentinel
};
const char *py::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"
;
void py::tick(void *)
{
Lock();
if(!thrcount) {
// all threads have stopped
shouldexit = false;
stoptick = 0;
}
else {
// still active threads
if(!--stoptick) {
post("%s - Threads couldn't be stopped entirely - %i remaining",thisName(),thrcount);
shouldexit = false;
}
else
// continue waiting
stoptmr.Delay(PY_STOP_TICK/1000.);
}
Unlock();
}
void py::m_stop(int argc,const t_atom *argv)
{
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();
}
}
PyObject *py::py_samplerate(PyObject *self,PyObject *args)
{
return PyFloat_FromDouble(sys_getsr());
}
PyObject *py::py_blocksize(PyObject *self,PyObject *args)
{
return PyLong_FromLong(sys_getblksize());
}
PyObject *py::py_send(PyObject *,PyObject *args)
{
// should always be a tuple
FLEXT_ASSERT(PyTuple_Check(args));
PyObject *name = PyTuple_GetItem(args,0); // borrowed reference
if(name && PyString_Check(name)) {
const t_symbol *recv = MakeSymbol(PyString_AsString(name));
int sz = PySequence_Size(args);
PyObject *val;
bool tp =
sz == 2 &&
PySequence_Check(
val = PyTuple_GetItem(args,1) // borrowed ref
);
if(!tp)
val = PySequence_GetSlice(args,1,sz); // new ref
AtomList *lst = GetPyArgs(val);
if(lst) {
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
post("py/pyext - No data to send");
if(lst) delete lst;
if(!tp) Py_DECREF(val);
}
else
post("py/pyext - Send name is invalid");
Py_INCREF(Py_None);
return Py_None;
}
#ifdef FLEXT_THREADS
PyObject *py::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 *py::py_getvalue(PyObject *self,PyObject *args)
{
FLEXT_ASSERT(PyTuple_Check(args));
PyObject *ret;
PyObject *name = PyTuple_GetItem(args,0); // borrowed reference
if(name && PyString_Check(name)) {
const t_symbol *sym = MakeSymbol(PyString_AsString(name));
float f;
if(value_getfloat(const_cast<t_symbol *>(sym),&f)) {
post("py/pyext - Could not get value '%s'",GetString(sym));
Py_INCREF(ret = Py_None);
}
else
ret = PyFloat_FromDouble(f);
}
else {
post("py/pyext - Syntax: _getvalue [name]");
Py_INCREF(ret = Py_None);
}
return ret;
}
PyObject *py::py_setvalue(PyObject *self,PyObject *args)
{
FLEXT_ASSERT(PyTuple_Check(args));
PyObject *name = PyTuple_GetItem(args,0); // borrowed reference
PyObject *val = PyTuple_GetItem(args,1); // borrowed reference
if(name && val && PyString_Check(name) && PyNumber_Check(val)) {
const t_symbol *sym = MakeSymbol(PyString_AsString(name));
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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