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plugged memory leak

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This commit is contained in:
jand 2003-05-30 16:37:58 +00:00
parent 13ede7255e
commit 511b425503
3 changed files with 46 additions and 8 deletions
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3
myhdl/Signal.py
View File

@ -42,7 +42,8 @@ _schedule = _futureEvents.append
class _WaiterList(list):
def purge(self):
self[:] = [w for w in self if not w.hasRun]
if self:
self[:] = [w for w in self if not w.hasRun]
def posedge(sig):

2
myhdl/Simulation.py
View File

@ -89,7 +89,7 @@ class Simulation(object):
def run(self, duration=0, quiet=0):
simrunc.run(sim=self, duration=duration, quiet=quiet)
runpy = simrun.run

49
myhdl/simrunc.c
View File

@ -23,14 +23,16 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
int quiet = 0;
static char *argnames[] = {"sim", "duration", "quiet", NULL};
PyObject *waiters, *waiter, *clauses, *clone, *clause, *type, *newtO, *event;
PyObject *waiters, *waiter, *clauses, *clone, *clause;
PyObject *type, *newtO, *event, *id;
PyObject *actives, *values;
long long int maxTime = -1;
long long int t = 0;
long long int ct = 0;
long long int newt = 0;
int nr;
int len, i, j;
PyObject *tO, *extl, *s, *hr, *hgl, *nt, *c, *wl, *ev, *ctO, *r;
PyObject *tO, *extl, *s, *hr, *hgl, *nt, *c, *wl, *ev, *ctO, *r, *it;
@ -42,6 +44,7 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
tO = PyObject_GetAttrString(_simulator, "_time");
t = PyLong_AsLongLong(tO);
Py_DECREF(tO);
actives = PyDict_New();
for (;;) {
@ -49,7 +52,7 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
for (i = 0; i < len; i++) {
s = PyList_GetItem(_siglist, i);
extl = PyObject_CallMethod(s, "_update", NULL);
for (j = 0; j < PyList_Size(extl); j++) {
for (j = 0; j < PyList_Size(extl) ; j++) {
PyList_Append(waiters, PyList_GetItem(extl, j));
}
Py_DECREF(extl);
@ -79,15 +82,17 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
if (PyErr_ExceptionMatches(PyExc_StopIteration)) {
c = PyObject_GetAttrString(waiter, "caller");
if (c != Py_None) {
PyList_Append(waiters, c);
PyList_Append(waiters, c);
}
Py_DECREF(waiter);
Py_DECREF(c);
continue;
} else {
Py_DECREF(waiter);
goto exception;
}
}
Py_DECREF(waiter);
clauses = PyTuple_GetItem(nt, 0);
clone = PyTuple_GetItem(nt, 1);
nr = PyTuple_Size(clauses);
@ -95,10 +100,21 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
clause = PySequence_GetItem(clauses, i);
type = PyObject_Type(clause);
if (type == _WaiterList) {
// PyObject_Print(clause, stdout, 0);
PyList_Append(clause, clone);
if (nr > 1) {
id = PyLong_FromVoidPtr(clause);
PyDict_SetItem(actives, id, clause);
Py_DECREF(id);
}
} else if (PyObject_IsInstance(clause, Signal)) {
wl = PyObject_GetAttrString(clause, "_eventWaiters");
PyList_Append(wl, clone);
if (nr > 1) {
id = PyLong_FromVoidPtr(wl);
PyDict_SetItem(actives, id, wl);
Py_DECREF(id);
}
Py_DECREF(wl);
} else if (type == delay) {
ctO = PyObject_GetAttrString(clause, "_time");
@ -114,6 +130,8 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
} else {
assert(0);
}
// Py_DECREF(clone);
Py_DECREF(type);
Py_DECREF(clause);
}
Py_DECREF(nt);
@ -124,8 +142,21 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
continue;
}
if (PyDict_Size(actives) > 0) {
values = PyDict_Values(actives);
for (i = 0; i < PyList_Size(values); i++) {
wl = PyList_GetItem(values, i);
r = PyObject_CallMethod(wl, "purge", NULL);
Py_DECREF(r);
}
Py_DECREF(values);
PyDict_Clear(actives);
}
// PyObject_Print(actives, stdout, 0);
if (PyList_Size(_futureEvents) > 0) {
PyObject_CallMethod(_futureEvents, "sort", NULL);
r = PyObject_CallMethod(_futureEvents, "sort", NULL);
Py_DECREF(r);
newtO = PyTuple_GetItem(PyList_GetItem(_futureEvents, 0), 0);
PyObject_SetAttrString(_simulator, "_time", newtO);
t = PyLong_AsLongLong(newtO);
@ -135,7 +166,8 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
newt = PyLong_AsLongLong(newtO);
event = PyTuple_GetItem(ev, 1);
if (newt == t) {
if (PyObject_Type(event) == _Waiter) {
type = PyObject_Type(event);
if (type == _Waiter) {
PyList_Append(waiters, event);
} else {
extl = PyObject_CallMethod(event, "apply", NULL);
@ -144,6 +176,7 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
}
Py_DECREF(extl);
}
Py_DECREF(type);
PySequence_DelItem(_futureEvents, 0);
} else {
break;
@ -165,8 +198,12 @@ run(PyObject *self, PyObject *args, PyObject *kwargs)
PyErr_Clear();
r = PyObject_CallMethod(sim, "_finalize", NULL);
Py_DECREF(r);
Py_DECREF(actives);
Py_DECREF(waiters);
return PyInt_FromLong(0);
}
Py_DECREF(actives);
Py_DECREF(waiters);
return Py_BuildValue("");
}