new management. master launches subordinate bureaus in subprocesses.

screenless/bureau/__init__.py

@@ -1 +1 @@
-from bureau import Bureau
+from .bureau import Bureau, add_command, add_api

screenless/bureau/bureau.py

@@ -184,13 +184,13 @@ class Bureau(object):
         lp.close()
 
     @add_command("test")
-    def test(self, data):
+    def test(self, data=None):
         """
         Standard test command.
         """
         # stupid test to see if modules work
         print(("hi! testing. " + self.name + " bureau seems to work!"))
-        return b"seems to work."
+        return "seems to work."
 
     def run_io(self):
         """process hardware or timed input
@@ -245,15 +245,18 @@ class Bureau(object):
                         data = json.loads(data)
                         ret = self.api[ref](data)
                     else:
-                        ret = self.commands[ref](data)
+                        if data:
+                            ret = self.commands[ref](data)
+                        else:
+                            ret = self.commands[ref]()
                     if ret is None:
                         ret = ""
-                    ret = b"0" + ret
-                    self._recv.send(ret)
-                except TypeError as err:
-                    print(err)
-                    print("invalid data for command '{}': {}".format(ref, data))
-                    self._recv.send_unicode("Error.  Invalid or missing data.")
+                    ret = "0" + ret
+                    self._recv.send_string(ret)
+                #except TypeError as err:
+                #    print(err)
+                #    print("invalid data for command '{}': {}".format(ref, data))
+                #    self._recv.send_unicode("Error.  Invalid or missing data.")
                 except KeyError as err:
                     print(err)
                     print("You are calling a command as an API or vice-versa.")
@@ -264,6 +267,9 @@ class Bureau(object):
                 self._recv.send_unicode("Error! Command/API not found.")
 
 
-if __name__ == "__main__":
+def main():
     buro = Bureau()
     buro.run()
+
+if __name__ == "__main__":
+    main()

screenless/bureau/ihr.py

@@ -29,11 +29,10 @@ class InhumanResources(Bureau):
                  desc: "Keep track of public resources provided by bureaus"
                }
         """
-        d = json.loads(data)
         try:
-            name = d["name"]
-            prefix = d["prefix"]
-            desc = d["desc"]
+            name = data["name"]
+            prefix = data["prefix"]
+            desc = data["desc"]
         except KeyError as e:
             print("cannot add invalid bureau:", str(e))
             return
@@ -45,12 +44,11 @@ class InhumanResources(Bureau):
 
     @add_api("addcommand", "Register Command")
     def add_cmd(self, data):
-        d = json.loads(data)
         try:
-            prefix = d["prefix"]
-            cmd = d["cmd"]
-            cmdname = d["cmdname"]
-            desc = d["desc"]
+            prefix = data["prefix"]
+            cmd = data["cmd"]
+            cmdname = data["cmdname"]
+            desc = data["desc"]
         except KeyError as e:
             print("cannot add invalid command:", str(e))
             return
@@ -64,12 +62,11 @@ class InhumanResources(Bureau):
 
     @add_api("addapi", "Register API Method")
     def add_api_method(self, data):
-        d = json.loads(data)
         try:
-            prefix = d["prefix"]
-            cmd = d["api"]
-            cmdname = d["apiname"]
-            desc = d["desc"]
+            prefix = data["prefix"]
+            cmd = data["api"]
+            cmdname = data["apiname"]
+            desc = data["desc"]
         except KeyError as e:
             print("cannot add invalid command:", str(e))
             return
@@ -89,6 +86,10 @@ class InhumanResources(Bureau):
         print(self.menu)
 
 
+def main():
+    hr = InhumanResources()
+    hr.run()
+
 if __name__ == "__main__":
     hr = InhumanResources()
     hr.run()

screenless/bureau/kbtest.py

@@ -1,13 +1,16 @@
+import os
 import time
 
 import zmq
 
 ctx = zmq.Context()
 
+basepath = os.path.expanduser("~/.screenless/")
+
 while True:
     msg = input("> ")
     send = ctx.socket(zmq.REQ)
-    send.connect("ipc://.screenless/" + msg[0:2] + ".ipc")
+    send.connect("ipc://" + basepath + msg[0:2] + ".ipc")
     send.send_string(msg[2:])
     print("sending ", msg[2:])
     ret = None

screenless/bureau/typing.py

@@ -71,6 +71,11 @@ class TypingPool(Bureau):
                         except KeyError:
                             print("Error invalid keycode:", data.scancode)
 
+
+def main():
+    evd = TypingPool()
+    evd.run()
+
 if __name__ == "__main__":
     evd = TypingPool()
     evd.run()

screenless/mgmt.py

@@ -0,0 +1,56 @@
+"""
+The Management - this module takes care of loading and running subordinate
+  bureaus in the office organization.  Bureaus are enabled in the file 
+  "~/.screenless/mgmt.ini":
+  [mgmt]
+  bureaus = ihr typing myburo and so on
+"""
+import configparser
+import importlib
+import multiprocessing
+import os
+import time
+
+def mgmt():
+
+    basepath = os.path.expanduser("~/.screenless")
+    if not os.path.exists(basepath):
+        os.mkdir(basepath)
+    os.chdir(basepath)
+
+    config = configparser.ConfigParser()
+    procs = {}
+
+    try:
+        config.read("mgmt.ini")
+        org_chart = config["mgmt"]["bureaus"].split()
+    except KeyError:
+        config["mgmt"] = {"bureaus": "ihr typing"}
+        with open("mgmt.ini", "w") as configfile:
+            config.write(configfile)
+        print("created new mgmt.ini config file.  please modify this to suit.")
+        org_chart = config["mgmt"]["bureaus"].split()
+    
+    print("org chart:", org_chart)
+
+    for buro in org_chart:
+        lib = importlib.import_module("bureau." + buro)
+        # run lib.main() in a separate process
+        proc = multiprocessing.Process(target=lib.main)
+        procs[buro] = proc.start()
+
+    while True:
+        for buro in org_chart:
+            proc = procs[buro]
+            if not proc.is_alive():
+                print("bureau", buro, "has crashed!  Call the consultants!")
+                #TODO this should probably restart in some sensible way
+            else:
+                print("bureau", buro, "still running...")
+        time.sleep(1)
+
+
+
+
+if __name__ == "__main__":
+    mgmt()