pisa-btc initial commit

Contains basic structure, zmq so subscribe to blockid messages, api and so on. Still WIP

pisa-btc/pisa/api.py

@@ -0,0 +1,34 @@
+import threading
+from multiprocessing.connection import Listener
+from pisa import *
+
+
+def manage_api(debug, host=HOST, port=PORT):
+    listener = Listener((host, port))
+    while True:
+        conn = listener.accept()
+
+        if debug:
+            print('Connection accepted from', listener.last_accepted)
+
+        # Maintain metadata up to date.
+        t_serve = threading.Thread(target=serve_data, args=[debug, conn, listener.last_accepted])
+        t_serve.start()
+
+
+def serve_data(debug, conn, remote_addr):
+    while not conn.closed:
+        try:
+            msg = conn.recv()
+
+            if type(msg) == tuple:
+                if len(msg) is 2:
+                    command, arg = msg
+
+                    print(command, arg)
+
+        except (IOError, EOFError):
+            if debug:
+                print('Disconnecting from', remote_addr)
+
+            conn.close()