scons/fixes.py

   1 import sys
   2
   3 # Monkey patch os.spawnve on windows to become thread safe
   4 if sys.platform == 'win32':
   5     import os
   6     import threading
   7     from os import spawnve as old_spawnve
   8
   9     spawn_lock = threading.Lock()
  10
  11     def new_spawnve(mode, file, args, env):
  12         spawn_lock.acquire()
  13         try:
  14             if mode == os.P_WAIT:
  15                 ret = old_spawnve(os.P_NOWAIT, file, args, env)
  16             else:
  17                 ret = old_spawnve(mode, file, args, env)
  18         finally:
  19             spawn_lock.release()
  20         if mode == os.P_WAIT:
  21             pid, status = os.waitpid(ret, 0)
  22             ret = status >> 8
  23         return ret
  24
  25     os.spawnve = new_spawnve
  26
  27