started implementing SignalRouter

data/example_config.yml

@@ -61,6 +61,10 @@ bar:
       refresh: 1000
       # Prefix to be printed before the text of the command.
       prefix: "DATE: "
+      # Linux real-time signal that, when received, will refresh the module
+      # instantly. For example, if you set this to `1`, run
+      # `pkill -RTMIN+1 easyconf-lemonbar`.
+      signal: 0
       # Formatting options. These will only affect the text and padding of this
       # module.
       format:

easyconf-lemonbar/Module.py

@@ -1,7 +1,7 @@
 from threading import Thread
 from subprocess import run
 from time import sleep
-from signal import SIGRTMIN, sigtimedwait
+from signal import SIGRTMIN, SIGUSR1, sigtimedwait
 
 class Module:
     # All text that the module contains. Will be re-generated every time the
@@ -105,9 +105,18 @@ class Module:
                     break
                 sleep(self.refresh)
             else:
-                sigtimedwait([self.signal], self.refresh)
-
+                sig = sigtimedwait([self.signal], self.refresh)
+                if sig:
+                    print("Recieved signal " + str(sig))
+                    continue
 
     def start_thread(self):
         thread = Thread(target=self.thread_callback)
         thread.start()
+        self.__ident = thread.ident
+
+    def get_ident(self):
+        if self.__ident:
+            return self.__ident
+        else:
+            return None

easyconf-lemonbar/SignalRouter.py

@@ -0,0 +1,13 @@
+from signal import SIGRTMIN, SIGTERM, pthread_kill, signal
+from sys import exit
+from threading import enumerate as th_enumerate
+
+class SignalRouter:
+    def term(self, sig, frame):
+        print("Term signal received! Safely closing threads!")
+        for thread in th_enumerate():
+            pthread_kill(thread.ident, SIGTERM)
+
+    def __init__(self):
+        signal(SIGTERM, self.term)
+        signal(SIGRTMIN, self.rtmin)

easyconf-lemonbar/main.py

@@ -1,3 +1,6 @@
+from os import getpid
+
+from SignalRouter import SignalRouter
 from Bar import Bar
 from Module import Module
 from parse_config_file import get_bar_config_and_module_config_list
@@ -8,6 +11,10 @@ def main():
     seperator = bar_config["seperator"]
     margin = bar_config["margin"]
 
+    print(getpid())
+
+    signal_router = SignalRouter()
+
     bar = Bar(seperator, margin)
 
     for module_config in module_config_list: