Allow two labels in voucher transfer

parse.py

@@ -4,6 +4,8 @@ import enum
 import uuid
 import os
 import logging
+import sys
+import select
 from multiprocessing import Process
 from multiprocessing import Value 
 from multiprocessing import Pipe
@@ -202,6 +204,8 @@ def p_voucher_transfer(p):
         | change_label nv HEX HEX
         | change_label hv LABEL HEX
         | change_label nv LABEL HEX
+        | change_label hv LABEL LABEL
+        | change_label nv LABEL LABEL
     '''
     o = p[1]
     if o.c.value & 0x10 == 0:
@@ -271,6 +275,7 @@ class Router:
 
 
     def exec(self, cmd):
+        logg.debug("router exec {}".format(cmd))
         if cmd.c & 0xa0 > 0:
             return self.sync(cmd.i)
         fn = self.__routes[cmd.c]
@@ -280,10 +285,17 @@ class Router:
         po.start()
 
 
-    def __del__(self):
+    def finish(self):
+        print("syncing")
         for k, v in self.__r.items():
+            print("syncing key " + k)
             r = self.sync(k)
-            logging.debug("synced " + k + ": " + r)
+            logg.debug("synced " + k + ": " + r)
+            print("synced " + k + ": " + r)
+
+
+    def __del__(self):
+        self.finish()
 
 
 def noop_handler(cmd):
@@ -296,21 +308,76 @@ def foo_handler(cmd):
 
 parser = yacc.yacc()
 
-cmds = [
-    "KEY_CREATE foo-bar Foo BAr",
-    "KEY_CREATE bar-baz Foo BAr 0xabcdef0",
-    "VOUCHER_MINT - 0xdeadbeef 13 0xfdaf",
-    "VOUCHER_MINT baz-baz 0xdeadbeef 13 0xfdaf",
-    "VOUCHER_MINT bar-bar 0xdeadbeef 42",
-    "VOUCHER_CREATE foo-foo Foo Bar 42",
-    "VOUCHER_CREATE inky-pinky-blinky Foo Bar 42 44 233",
-    "VOUCHER_TRANSFER clyde-sue 0xbeeffeed0123 666 foo 0x0fdc",
-        ]
-for v in cmds:
+running = True
+
+
+class FileGet:
+    def __init__(self, o, fp):
+        self.__running = True
+        self.__o = o
+        self.__f = open(fp, 'r')
+
+    def run(self):
+        while self.__running:
+            v = ifc.get()
+            if v == None:
+                break
+            v = v.strip('\n')
+            if len(v) == 0:
+                break
+            r = parser.parse(v)
+            self.__o.exec(r)
+
+    def get(self):
+        return self.__f.readline()
+       
+    
+class WaitGet:
+    def __init__(self, o, *r):
+        self.__running = True
+        self.__o = o
+        self.__f = r
+
+    # TODO: router copy results in missing keys to sync when closing down
+    def __process(self, f):
+        while self.__running:
+            r = select.select([f], [], [])
+            v = r[0][0].recv()
+            if v == None:
+                break
+            v = v.strip('\n')
+            if len(v) == 0:
+                break
+            r = parser.parse(v)
+            self.__o.exec(r)
+
+
+    def run(self):
+        (fo, fi,) = Pipe()
+        p = Process(target=self.__process, args=(fo,))
+        p.start()
+        while self.__running:
+            v = input("> ")
+            if v == "":
+                fi.send(None)
+                break
+            fi.send(v)
+        p.join()
+        logg.debug('waitget run end')
+
+
+if __name__ == '__main__':
+    ifc = None
     o = Router()
     o.register(CmdId.KEY_CREATE, noop_handler)
     o.register(CmdId.VOUCHER_MINT, noop_handler)
     o.register(CmdId.VOUCHER_CREATE, noop_handler)
     o.register(CmdId.VOUCHER_TRANSFER, foo_handler)
-    r = parser.parse(v)
-    o.exec(r)
+
+    if len(sys.argv) > 1:
+        ifc = FileGet(o, sys.argv[1])
+    else:
+        ifc = WaitGet(o, sys.stdin)
+
+    ifc.run()
+    o.finish()