Android: uses taskset when starting adb.

build/android/pylib/android_commands.py

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Provides an interface to communicate with the device via the adb command.
 
 Assumes adb binary is currently on system path.
 """
 
 import collections
@@ skipping 441 matching lines @@
       reboots_left -= 1
 
   def MakeSystemFolderWritable(self):
     """Remounts the /system folder rw."""
     out = self._adb.SendCommand('remount')
     if out.strip() != 'remount succeeded':
       raise errors.MsgException('Remount failed: %s' % out)
 
   def RestartAdbServer(self):
     """Restart the adb server."""
-    self.KillAdbServer()
-    self.StartAdbServer()
+    ret = self.KillAdbServer()
+    if ret != 0:
+      raise errors.MsgException('KillAdbServer: %d' % ret)
+
+    ret = self.StartAdbServer()
+    if ret != 0:
+      raise errors.MsgException('StartAdbServer: %d' % ret)
 
   def KillAdbServer(self):
     """Kill adb server."""
     adb_cmd = [constants.ADB_PATH, 'kill-server']
-    return cmd_helper.RunCmd(adb_cmd)
+    ret = cmd_helper.RunCmd(adb_cmd)
+    retry = 0
+    while retry < 3:
+      ret = cmd_helper.RunCmd(['pgrep', 'adb'])
+      if ret != 0:
+        # pgrep didn't find adb, kill-server succeeded.
+        return 0
+      retry += 1
+      time.sleep(retry)
+    return ret
 
   def StartAdbServer(self):
     """Start adb server."""
-    adb_cmd = [constants.ADB_PATH, 'start-server']
-    return cmd_helper.RunCmd(adb_cmd)
+    adb_cmd = ['taskset', '-c', '0', constants.ADB_PATH, 'start-server']
+    ret = cmd_helper.RunCmd(adb_cmd)
+    retry = 0
+    while retry < 3:
+      ret = cmd_helper.RunCmd(['pgrep', 'adb'])
+      if ret == 0:
+        # pgrep fonud adb, start-server succeeded.
+        return 0
+      retry += 1
+      time.sleep(retry)
+    return ret
 
   def WaitForSystemBootCompleted(self, wait_time):
     """Waits for targeted system's boot_completed flag to be set.
 
     Args:
       wait_time: time in seconds to wait
 
     Raises:
       WaitForResponseTimedOutError if wait_time elapses and flag still not
       set.
@@ skipping 1035 matching lines @@
   """
   def __init__(self, output):
     self._output = output
 
   def write(self, data):
     data = data.replace('\r\r\n', '\n')
     self._output.write(data)
 
   def flush(self):
     self._output.flush()