Question

我遇到了子进程模块的问题，特别是Popen类。我正在学习python中的套接字，并有两个服务器通过套接字进行通信。逻辑如下服务器A向服务器B发送git目录列表。服务器B遍历git目录列表并将每个目录的SHA哈希返回给请求服务器A.但是，当出现故障时会出现问题。代码：

  Server B : Python version : 2.4.3 

  while 1:
       data=conn.recv(1024)
       if not data: break
       #DEBUG
       #print "data:",data
       proc=subprocess.Popen(["git","--git-dir",'/var/git/temp/'+data,"log","-1","--all","--pretty=format:\"%H\""],stdout=subprocess.PIPE)
       # Ignore failure and move on
       # continue or pass do not seem to work \
       # neither does exception handling
       if proc.wait() !=0 : pass
       sha_hash,err=proc.communicate()
       print sha_hash
       conn.send(sha_hash)

conn.close()

现在当git项目的默认修订版设置为HEAD等失败时，子进程调用失败并打印返回代码128，但它只是挂起。我无法找到一种方法来返回我对剩余目录的处理，我必须杀死这个过程。我也尝试使用poll（）但是没有用。任何建议表示赞赏。

EDIT1：

    Removing wait 

    while 1:
       data=conn.recv(1024)
       if not data: break
       #DEBUG
       #print "data:",data
       proc=subprocess.Popen(["git","--git-dir",'/var/git/temp/'+data,"log","-1","--all","--pretty=format:\"%H\""],stdout=subprocess.PIPE)
       # Ignore failure and move on
       # continue or pass do not seem to work \
       # neither does exception handling
       ## removed wait and just using communicate ##
       sha_hash,err=proc.communicate()
       print sha_hash
       conn.send(sha_hash)

conn.close()

Python：子进程Popen挂起

0 个答案: