def index(self, item, begIdx=0, endIdx=sys.maxint):
SHMOBJ.protect(self)
idx = 0
np = py2shmobj.shmlist_getnode(self.addr, begIdx)
while np and idx < endIdx:
(p,datatype,datalen) = py2shmobj.shmlnode_get(np)
obj = typed_ptr(p,datatype)
if obj == item:
return idx
np = py2shmobj.shmlist_next(self.addr,np)
idx += 1
raise ValueError
def __getitem__(self,idx):
SHMOBJ.protect(self)
if idx < 0:
idx += len(self)
if idx < 0 or not type(idx) in [int, SHMINT]:
raise IndexError
np = py2shmobj.shmlist_getnode(self.addr, idx)
if np:
(ep,datatype,datalen) = py2shmobj.shmlnode_get(np)
return typed_ptr(ep,datatype)
else:
raise IndexError
def __setitem__(self,idx,arg):
SHMOBJ.protect(self)
#### RMB: VERIFY THAT ARG IS ALREADY SHMOBJ
if not isinstance(arg, SHMOBJ):
raise TypeError("** invalid type being replaced in shmlist")
datatype, datalen = get_type_and_len(arg)
np = py2shmobj.shmlist_getnode(self.addr, idx)
if np:
ep = arg.get_ptr()
py2shmobj.shmlnode_put(np,ep,datatype,datalen)
return None
else:
raise IndexError
def delitem(self, idx, shallow=False):
SHMOBJ.protect(self)
np = py2shmobj.shmlist_getnode(self.addr, idx)
if not np:
raise IndexError
if not shallow:
(p,datatype,datalen) = py2shmobj.shmlnode_get(np)
if p:
obj = typed_ptr(p,datatype)
if isinstance(obj, SHMLST):
obj.delete(shallow=shallow)
else:
obj.delete()
py2shmobj.shmlist_remove(self.addr,np)
py2shmobj.shmobj_del(np)
def __getslice__(self,idx_a,idx_b):
SHMOBJ.protect(self)
slice = []
if idx_b == sys.maxint:
idx_b = len(self)
if idx_a < 0:
idx_a += len(self)
if idx_a < 0:
idx_a = 0
if idx_a > len(self):
idx_a = len(self)
if idx_b < 0:
idx_b += len(self)
if idx_b < 0:
idx_b = 0
if idx_b > len(self):
idx_b = len(self)
if idx_b <= idx_a:
return slice
if idx_a < 0 or idx_b < 0 or idx_a > len(self) or idx_b > len(self):
raise IndexError
i = idx_a
np = py2shmobj.shmlist_getnode(self.addr, idx_a)
while np and i < idx_b:
(ep,datatype,datalen) = py2shmobj.shmlnode_get(np)
slice.append(typed_ptr(ep,datatype))
np = py2shmobj.shmlist_next(self.addr,np)
i += 1
if i < idx_b:
raise IndexError
return slice
