gcode: Eliminate the process_batch() method

Allow the callers of process_batch() to directly inspect the gcode
mutex.  Those callers can then directly invoke run_script().

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/extras/idle_timeout.py

@@ -42,12 +42,10 @@ class IdleTimeout:
         self.state = "Printing"
         try:
             script = self.idle_gcode.render()
-            res = self.gcode.process_batch(script.split('\n'))
+            res = self.gcode.run_script(script)
         except:
             logging.exception("idle timeout gcode execution")
-            return eventtime + 1.
-        if not res:
-            # Raced with incoming g-code commands
+            self.state = "Ready"
             return eventtime + 1.
         print_time = self.toolhead.get_last_move_time()
         self.state = "Idle"
@@ -64,7 +62,7 @@ class IdleTimeout:
         if idle_time < self.idle_timeout:
             # Wait for idle timeout
             return eventtime + self.idle_timeout - idle_time
-        if not self.gcode.process_batch([]):
+        if self.gcode.get_mutex().test():
             # Gcode class busy
             return eventtime + 1.
         # Idle timeout has elapsed
@@ -82,7 +80,7 @@ class IdleTimeout:
         if buffer_time > -READY_TIMEOUT:
             # Wait for ready timeout
             return eventtime + READY_TIMEOUT + buffer_time
-        if not self.gcode.process_batch([]):
+        if self.gcode.get_mutex().test():
             # Gcode class busy
             return eventtime + READY_TIMEOUT
         # Transition to "ready" state

klippy/extras/virtual_sdcard.py

@@ -146,6 +146,7 @@ class VirtualSD:
             self.gcode.respond_error("Unable to seek file")
             self.work_timer = None
             return self.reactor.NEVER
+        gcode_mutex = self.gcode.get_mutex()
         partial_input = ""
         lines = []
         while not self.must_pause_work:
@@ -170,12 +171,13 @@ class VirtualSD:
                 lines.reverse()
                 self.reactor.pause(self.reactor.NOW)
                 continue
+            # Pause if any other request is pending in the gcode class
+            if gcode_mutex.test():
+                self.reactor.pause(self.reactor.monotonic() + 0.100)
+                continue
             # Dispatch command
             try:
-                res = self.gcode.process_batch([lines[-1]])
-                if not res:
-                    self.reactor.pause(self.reactor.monotonic() + 0.100)
-                    continue
+                self.gcode.run_script(lines[-1])
             except self.gcode.error as e:
                 break
             except: