fix: read all chunks in queue since we have interval in listener

Author: hfudev

pytest-embedded/pytest_embedded/dut_factory.py

@@ -52,15 +52,16 @@ def msg_queue_gn() -> MessageQueue:
 def _listen(q: MessageQueue, filepath: str, with_timestamp: bool = True, count: int = 1, total: int = 1) -> None:
     _added_prefix = False
     while True:
-        msg = q.get()
-        if not msg:
+        msgs = q.get_all()
+        if not msgs:
             continue
 
+        msg_b = b''.join(msgs)
         with open(filepath, 'ab') as fw:
-            fw.write(msg)
+            fw.write(msg_b)
             fw.flush()
 
-        _s = to_str(msg)
+        _s = to_str(msg_b)
         if not _s:
             continue
 
@@ -87,7 +88,7 @@ def _listen(q: MessageQueue, filepath: str, with_timestamp: bool = True, count:
 
         _stdout.write(_s)
         _stdout.flush()
-        time.sleep(0.1)
+        time.sleep(0.05)
 
 
 def _listener_gn(msg_queue, _pexpect_logfile, with_timestamp, dut_index, dut_total) -> multiprocessing.Process:

pytest-embedded/pytest_embedded/log.py

@@ -8,6 +8,7 @@
 import textwrap
 import uuid
 from multiprocessing import queues
+from queue import Empty
 from typing import AnyStr, List, Optional, Union
 
 import pexpect.fdpexpect
@@ -26,6 +27,8 @@ class MessageQueue(queues.Queue):
     def __init__(self, *args, **kwargs):
         if 'ctx' not in kwargs:
             kwargs['ctx'] = _ctx
+
+        self.lock = _ctx.Lock()
         super().__init__(*args, **kwargs)
 
     def put(self, obj, **kwargs):
@@ -42,6 +45,17 @@ def put(self, obj, **kwargs):
         except:  # noqa # queue might be closed
             pass
 
+    def get_all(self) -> List[bytes]:
+        res = []
+        with self.lock:
+            while True:
+                try:
+                    res.append(self.get_nowait())
+                except Empty:
+                    break
+
+        return res
+
     def write(self, s: AnyStr):
         self.put(s)