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authorJohnathan Corgan <johnathan@corganlabs.com>2013-03-26 20:18:53 -0700
committerJohnathan Corgan <johnathan@corganlabs.com>2013-03-26 20:18:53 -0700
commit26dceecc80390f10cedb94bd9e4fd655827d7f17 (patch)
treef88cb2995133048b4a2191bae688fa09b33a19ae /gnuradio-core/src/python/gnuradio/gr/gateway.py
parent9bbbda510c265b211b5b571db79ba259c67ee049 (diff)
runtime: migrate remaining gnuradio-core contents into gnuradio-runtime
Diffstat (limited to 'gnuradio-core/src/python/gnuradio/gr/gateway.py')
-rw-r--r--gnuradio-core/src/python/gnuradio/gr/gateway.py243
1 files changed, 0 insertions, 243 deletions
diff --git a/gnuradio-core/src/python/gnuradio/gr/gateway.py b/gnuradio-core/src/python/gnuradio/gr/gateway.py
deleted file mode 100644
index c25755bb57..0000000000
--- a/gnuradio-core/src/python/gnuradio/gr/gateway.py
+++ /dev/null
@@ -1,243 +0,0 @@
-#
-# Copyright 2011-2012 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-import gnuradio_core as gr_core
-from gnuradio_core import io_signature, io_signaturev
-from gnuradio_core import gr_block_gw_message_type
-from gnuradio_core import block_gateway
-import numpy
-
-########################################################################
-# Magic to turn pointers into numpy arrays
-# http://docs.scipy.org/doc/numpy/reference/arrays.interface.html
-########################################################################
-def pointer_to_ndarray(addr, dtype, nitems):
- class array_like:
- __array_interface__ = {
- 'data' : (int(addr), False),
- 'typestr' : dtype.base.str,
- 'descr' : dtype.base.descr,
- 'shape' : (nitems,) + dtype.shape,
- 'strides' : None,
- 'version' : 3
- }
- return numpy.asarray(array_like()).view(dtype.base)
-
-########################################################################
-# Handler that does callbacks from C++
-########################################################################
-class gateway_handler(gr_core.feval_ll):
-
- #dont put a constructor, it wont work
-
- def init(self, callback):
- self._callback = callback
-
- def eval(self, arg):
- try: self._callback()
- except Exception as ex:
- print("handler caught exception: %s"%ex)
- import traceback; traceback.print_exc()
- raise ex
- return 0
-
-########################################################################
-# Handler that does callbacks from C++
-########################################################################
-class msg_handler(gr_core.feval_p):
-
- #dont put a constructor, it wont work
-
- def init(self, callback):
- self._callback = callback
-
- def eval(self, arg):
- try: self._callback(arg)
- except Exception as ex:
- print("handler caught exception: %s"%ex)
- import traceback; traceback.print_exc()
- raise ex
- return 0
-
-########################################################################
-# The guts that make this into a gr block
-########################################################################
-class gateway_block(object):
-
- def __init__(self, name, in_sig, out_sig, work_type, factor):
-
- #ensure that the sigs are iterable dtypes
- def sig_to_dtype_sig(sig):
- if sig is None: sig = ()
- return map(numpy.dtype, sig)
- self.__in_sig = sig_to_dtype_sig(in_sig)
- self.__out_sig = sig_to_dtype_sig(out_sig)
-
- #cache the ranges to iterate when dispatching work
- self.__in_indexes = range(len(self.__in_sig))
- self.__out_indexes = range(len(self.__out_sig))
-
- #convert the signatures into gr.io_signatures
- def sig_to_gr_io_sigv(sig):
- if not len(sig): return io_signature(0, 0, 0)
- return io_signaturev(len(sig), len(sig), [s.itemsize for s in sig])
- gr_in_sig = sig_to_gr_io_sigv(self.__in_sig)
- gr_out_sig = sig_to_gr_io_sigv(self.__out_sig)
-
- #create internal gateway block
- self.__handler = gateway_handler()
- self.__handler.init(self.__gr_block_handle)
- self.__gateway = block_gateway(
- self.__handler, name, gr_in_sig, gr_out_sig, work_type, factor)
- self.__message = self.__gateway.gr_block_message()
-
- #dict to keep references to all message handlers
- self.__msg_handlers = {}
-
- #register gr_block functions
- prefix = 'gr_block__'
- for attr in [x for x in dir(self.__gateway) if x.startswith(prefix)]:
- setattr(self, attr.replace(prefix, ''), getattr(self.__gateway, attr))
- self.pop_msg_queue = lambda: gr_core.gr_block_gw_pop_msg_queue_safe(self.__gateway)
-
- def to_basic_block(self):
- """
- Makes this block connectable by hier/top block python
- """
- return self.__gateway.to_basic_block()
-
- def __gr_block_handle(self):
- """
- Dispatch tasks according to the action type specified in the message.
- """
- if self.__message.action == gr_block_gw_message_type.ACTION_GENERAL_WORK:
- self.__message.general_work_args_return_value = self.general_work(
-
- input_items=[pointer_to_ndarray(
- self.__message.general_work_args_input_items[i],
- self.__in_sig[i],
- self.__message.general_work_args_ninput_items[i]
- ) for i in self.__in_indexes],
-
- output_items=[pointer_to_ndarray(
- self.__message.general_work_args_output_items[i],
- self.__out_sig[i],
- self.__message.general_work_args_noutput_items
- ) for i in self.__out_indexes],
- )
-
- elif self.__message.action == gr_block_gw_message_type.ACTION_WORK:
- self.__message.work_args_return_value = self.work(
-
- input_items=[pointer_to_ndarray(
- self.__message.work_args_input_items[i],
- self.__in_sig[i],
- self.__message.work_args_ninput_items
- ) for i in self.__in_indexes],
-
- output_items=[pointer_to_ndarray(
- self.__message.work_args_output_items[i],
- self.__out_sig[i],
- self.__message.work_args_noutput_items
- ) for i in self.__out_indexes],
- )
-
- elif self.__message.action == gr_block_gw_message_type.ACTION_FORECAST:
- self.forecast(
- noutput_items=self.__message.forecast_args_noutput_items,
- ninput_items_required=self.__message.forecast_args_ninput_items_required,
- )
-
- elif self.__message.action == gr_block_gw_message_type.ACTION_START:
- self.__message.start_args_return_value = self.start()
-
- elif self.__message.action == gr_block_gw_message_type.ACTION_STOP:
- self.__message.stop_args_return_value = self.stop()
-
- def forecast(self, noutput_items, ninput_items_required):
- """
- forecast is only called from a general block
- this is the default implementation
- """
- for ninput_item in ninput_items_required:
- ninput_item = noutput_items + self.history() - 1;
- return
-
- def general_work(self, *args, **kwargs):
- """general work to be overloaded in a derived class"""
- raise NotImplementedError("general work not implemented")
-
- def work(self, *args, **kwargs):
- """work to be overloaded in a derived class"""
- raise NotImplementedError("work not implemented")
-
- def start(self): return True
- def stop(self): return True
-
- def set_msg_handler(self, which_port, handler_func):
- handler = msg_handler()
- handler.init(handler_func)
- self.__gateway.set_msg_handler_feval(which_port, handler)
- # Save handler object in class so it's not garbage collected
- self.__msg_handlers[which_port] = handler
-
-########################################################################
-# Wrappers for the user to inherit from
-########################################################################
-class basic_block(gateway_block):
- def __init__(self, name, in_sig, out_sig):
- gateway_block.__init__(self,
- name=name,
- in_sig=in_sig,
- out_sig=out_sig,
- work_type=gr_core.GR_BLOCK_GW_WORK_GENERAL,
- factor=1, #not relevant factor
- )
-
-class sync_block(gateway_block):
- def __init__(self, name, in_sig, out_sig):
- gateway_block.__init__(self,
- name=name,
- in_sig=in_sig,
- out_sig=out_sig,
- work_type=gr_core.GR_BLOCK_GW_WORK_SYNC,
- factor=1,
- )
-
-class decim_block(gateway_block):
- def __init__(self, name, in_sig, out_sig, decim):
- gateway_block.__init__(self,
- name=name,
- in_sig=in_sig,
- out_sig=out_sig,
- work_type=gr_core.GR_BLOCK_GW_WORK_DECIM,
- factor=decim,
- )
-
-class interp_block(gateway_block):
- def __init__(self, name, in_sig, out_sig, interp):
- gateway_block.__init__(self,
- name=name,
- in_sig=in_sig,
- out_sig=out_sig,
- work_type=gr_core.GR_BLOCK_GW_WORK_INTERP,
- factor=interp,
- )
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-20 16:05:34 +0000