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-rw-r--r--gr-audio/grc/audio_sink.xml1
-rw-r--r--gr-audio/grc/audio_source.xml1
-rw-r--r--gr-uhd/grc/gen_uhd_usrp_blocks.py1
-rw-r--r--grc/blocks/gr_throttle.xml1
-rw-r--r--grc/python/Block.py3
-rw-r--r--grc/python/Generator.py4
-rw-r--r--grc/python/block.dtd3
7 files changed, 11 insertions, 3 deletions
diff --git a/gr-audio/grc/audio_sink.xml b/gr-audio/grc/audio_sink.xml
index 26e199d61..4a88a7fa2 100644
--- a/gr-audio/grc/audio_sink.xml
+++ b/gr-audio/grc/audio_sink.xml
@@ -8,6 +8,7 @@
<name>Audio Sink</name>
<key>audio_sink</key>
<category>Sinks</category>
+ <throttle>1</throttle>
<import>from gnuradio import audio</import>
<make>audio.sink($samp_rate, $device_name, $ok_to_block)</make>
<param>
diff --git a/gr-audio/grc/audio_source.xml b/gr-audio/grc/audio_source.xml
index 59b375244..d56e9153a 100644
--- a/gr-audio/grc/audio_source.xml
+++ b/gr-audio/grc/audio_source.xml
@@ -8,6 +8,7 @@
<name>Audio Source</name>
<key>audio_source</key>
<category>Sources</category>
+ <throttle>1</throttle>
<import>from gnuradio import audio</import>
<make>audio.source($samp_rate, $device_name, $ok_to_block)</make>
<param>
diff --git a/gr-uhd/grc/gen_uhd_usrp_blocks.py b/gr-uhd/grc/gen_uhd_usrp_blocks.py
index b6bc5fb79..7116dad3b 100644
--- a/gr-uhd/grc/gen_uhd_usrp_blocks.py
+++ b/gr-uhd/grc/gen_uhd_usrp_blocks.py
@@ -23,6 +23,7 @@ MAIN_TMPL = """\
<block>
<name>UHD: USRP $sourk.title()</name>
<key>uhd_usrp_$(sourk)</key>
+ <throttle>1</throttle>
<import>from gnuradio import uhd</import>
<make>uhd.usrp_$(sourk)(
device_addr=\$dev_addr,
diff --git a/grc/blocks/gr_throttle.xml b/grc/blocks/gr_throttle.xml
index ab8506f55..dc825f167 100644
--- a/grc/blocks/gr_throttle.xml
+++ b/grc/blocks/gr_throttle.xml
@@ -7,6 +7,7 @@
<block>
<name>Throttle</name>
<key>gr_throttle</key>
+ <throttle>1</throttle>
<import>from gnuradio import gr</import>
<make>gr.throttle($type.size*$vlen, $samples_per_second)</make>
<param>
diff --git a/grc/python/Block.py b/grc/python/Block.py
index 4baf36dc6..967a27ce9 100644
--- a/grc/python/Block.py
+++ b/grc/python/Block.py
@@ -46,6 +46,7 @@ class Block(_Block, _GUIBlock):
self._var_make = n.find('var_make')
self._checks = n.findall('check')
self._callbacks = n.findall('callback')
+ self._throttle = n.find('throttle') or ''
#build the block
_Block.__init__(
self,
@@ -54,6 +55,8 @@ class Block(_Block, _GUIBlock):
)
_GUIBlock.__init__(self)
+ def throttle(self): return bool(self._throttle)
+
def validate(self):
"""
Validate this block.
diff --git a/grc/python/Generator.py b/grc/python/Generator.py
index 2a2dfdd49..2a6fe51d5 100644
--- a/grc/python/Generator.py
+++ b/grc/python/Generator.py
@@ -57,8 +57,8 @@ class Generator(object):
def write(self):
#do throttle warning
- all_keys = ' '.join(map(lambda b: b.get_key(), self._flow_graph.get_enabled_blocks()))
- if ('usrp' not in all_keys) and ('uhd' not in all_keys) and ('audio' not in all_keys) and ('throttle' not in all_keys) and self._generate_options != 'hb':
+ throttled = any(map(lambda b: b.throttle(), self._flow_graph.get_enabled_blocks()))
+ if not throttled and self._generate_options != 'hb':
Messages.send_warning('''\
This flow graph may not have flow control: no audio or usrp blocks found. \
Add a Misc->Throttle block to your flow graph to avoid CPU congestion.''')
diff --git a/grc/python/block.dtd b/grc/python/block.dtd
index 7c6c39811..41a744d07 100644
--- a/grc/python/block.dtd
+++ b/grc/python/block.dtd
@@ -25,7 +25,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
Top level element.
A block contains a name, ...parameters list, and list of IO ports.
-->
-<!ELEMENT block (name, key, category?, import*, var_make?, make, callback*, param*, check*, sink*, source*, doc?)>
+<!ELEMENT block (name, key, category?, throttle?, import*, var_make?, make, callback*, param*, check*, sink*, source*, doc?)>
<!--
Sub level elements.
-->
@@ -53,3 +53,4 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
<!ELEMENT value (#PCDATA)>
<!ELEMENT callback (#PCDATA)>
<!ELEMENT optional (#PCDATA)>
+<!ELEMENT throttle (#PCDATA)>