Moved UDP server functionality for receiving LoRa frames to lora.lorasocket.LoRaUDPServer

apps/grlora_analyze.py

@@ -26,8 +26,6 @@ def iphase(cpx):
     return np.unwrap(np.angle(cpx))
 
 def ifreq(cpx):
-    global fs
-
     iphase_signal = iphase(cpx)
     return np.diff(iphase_signal)
 

python/CMakeLists.txt

@@ -32,6 +32,7 @@ GR_PYTHON_INSTALL(
     FILES
     __init__.py
     lora_receiver.py
+    lorasocket.py
     loraconfig.py DESTINATION ${GR_PYTHON_DIR}/lora
 )
 

python/lorasocket.py

@@ -0,0 +1,34 @@
+import socket
+import binascii
+
+class LoRaUDPServer():
+    def __init__(self, ip="127.0.0.1", port=40868, timeout=10):
+        self.ip = ip
+        self.port = port
+        self.timeout = timeout
+
+        self.s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+        self.s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        self.s.bind((self.ip, self.port))
+        self.s.settimeout(self.timeout)
+
+    def __del__(self):
+        self.s.close()
+
+    def get_payloads(self, number_of_payloads):
+        """
+        Returns array of <number_of_payloads> hexadecimal LoRa payload datagrams received on a socket.
+        """
+        total_data = []
+        data = ''
+
+        for i in range(number_of_payloads):
+            try:
+                data = self.s.recvfrom(65535)[0]
+                if data:
+                    total_data.append(binascii.hexlify(data))
+            except Exception as e:
+                print(e)
+                pass
+
+        return total_data

python/qa_testsuite.py

@@ -16,6 +16,7 @@ from gnuradio import gr, gr_unittest, blocks, filter
 from gnuradio.filter import firdes
 from sigmf.sigmffile import SigMFFile
 from lora.loraconfig import LoRaConfig
+from lora.lorasocket import LoRaUDPServer
 
 Test = collections.namedtuple('Test', ['payload', 'times'])
 TestResult = collections.namedtuple('TestResult', ['decoded_data', 'lora_config', 'test'])
@@ -151,15 +152,8 @@ class qa_testsuite():
         """
         Determine installed test suites and setup socket server for receiving payloads decoded by gr-lora.
         """
-        # Variables
+        # Setup UDP server to capture decoded data
-        self.host = "127.0.0.1"
+        self.server = LoRaUDPServer(ip="127.0.0.1", port=40868)
-        self.port = 40868
-
-        # Setup socket
-        self.server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
-        self.server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-        self.server.bind((self.host, self.port))
-        self.server.settimeout(10)
 
         # Determine test suites directory if needed
         if path is None:
@@ -178,27 +172,6 @@ class qa_testsuite():
         else:
             print("No test suites found! Skipping...")
 
-    def __del__(self):
-        self.server.close()
-
-    def get_payloads(self, number):
-        """
-        Returns array of <number> hexadecimal LoRa payload datagrams received on a socket.
-        """
-        total_data = []
-        data = ''
-
-        for i in range(number):
-            try:
-                data = self.server.recvfrom(65535)[0]
-                if data:
-                    total_data.append(binascii.hexlify(data))
-            except Exception as e:
-                print(e)
-                pass
-
-        return total_data
-
     def run(self, suites_to_run, pause=False, write_output=True):
         for test_suite in self.test_suites:
             # Skip test suites that we don't want to run
@@ -264,7 +237,7 @@ class qa_testsuite():
                 tb.start()
                 tb.wait()
 
-                decoded_data = self.get_payloads(times)  # Output from the flowgraph
+                decoded_data = self.server.get_payloads(times)  # Output from the flowgraph
                 summary.add(TestResult(decoded_data=decoded_data, lora_config=lora_config, test=test), print_intermediate=True)
             # Finally, export the result for the suite
             summary.export_summary(path=self.reports_directory, write_output=write_output)