From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sat, 26 Sep 2020 11:41:40 +0000 (+0100)
Subject: basic client/server socket example
X-Git-Tag: 24jan2021_ls180~319
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dc60475fc9d081f08c2a43a23dceec1ee25f149d;p=soc.git

basic client/server socket example
---

diff --git a/src/soc/debug/test/jtagremote.py b/src/soc/debug/test/jtagremote.py
new file mode 100644
index 00000000..365c4a45
--- /dev/null
+++ b/src/soc/debug/test/jtagremote.py
@@ -0,0 +1,60 @@
+#The server code
+import socket
+from socket import close, AF_INET, SOCK_STREAM
+import sys
+import select
+import time
+
+
+def server():
+    HOST = '' 
+    PORT = 9999
+    s = socket.socket(AF_INET, SOCK_STREAM)
+    s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    s.bind((HOST, PORT))
+    s.listen(1) #only needs to receive one connection (the client)
+    return s
+
+def get_connection(s):
+    r, w, e = select.select( [s], [], [], 0)
+    for sock in r:
+        #incoming message from remote server
+        if sock == s:
+            conn, addr = s.accept() #accepts the connection
+            print("Connected by: ", addr) #prints the connection
+            return conn
+    return None
+
+def get_data(s):
+    r, w, e = select.select( [s], [], [])
+
+    for sock in r:
+        #incoming message from remote server
+        if sock == s:
+            return sock.recv(1024)
+    return None
+
+
+def client():
+    HOST = 'localhost'
+    PORT = 9999
+    s = socket.socket(AF_INET, SOCK_STREAM)
+    s.connect((HOST, PORT))
+    return s
+
+if __name__ == '__main__':
+
+    s = server()
+    c = client()
+    sc = get_connection(s)
+
+    c.send(str.encode("hello"))
+    while True:
+        resp = get_data(sc)
+        if resp is not None:
+            print ("response", resp)
+            break
+    s.close()
+    sc.close()
+    c.close()
+