2004年08月02日 星期一 10:02
Hollo Zhiyuan.Ma: 发布到Wiki 中了? 没有看到是也乎………… /******** [2004-08-02]10:02:29 ; Zhiyuan.Ma wrote: Zhiyuan.Ma> python-chinese,您好! Zhiyuan.Ma> "编写TCP客户端"和"运用进程"我已经翻完了,不过忘在家里了.晚上上载 Zhiyuan.Ma> 今天打算翻"UDP网络" Zhiyuan.Ma> 以前没有翻过东西,还请大家多多指正. Zhiyuan.Ma> 另外麻烦Zoomq看看是不是wiki格式我写的不对,怎么实例代码看起来和前面的很不同. Zhiyuan.Ma> 致 Zhiyuan.Ma> 礼! Zhiyuan.Ma> Jerry Marx Zhiyuan.Ma> zhiyuan.ma at enorbus.com.cn Zhiyuan.Ma> 2004-08-02 ********************************************/ -- Free as in Freedom Zoom.Quiet #=========================================# ]Time is unimportant, only life important![ #=========================================# sender is the Bat!2.12.00
2004年08月02日 星期一 10:18
Zoom.Quiet,您好! 哦.我指的是"Reactor基础"和"编写TCP服务器" 示例代码没有行号,颜色也不同.和finger教程相比 ======= 2004-08-02 10:02:43 您在来信中写道:======= >Hollo Zhiyuan.Ma: > > 发布到Wiki 中了? >没有看到是也乎………… > > >/******** [2004-08-02]10:02:29 ; Zhiyuan.Ma wrote: > >Zhiyuan.Ma> python-chinese,您好! > >Zhiyuan.Ma> "编写TCP客户端"和"运用进程"我已经翻完了,不过忘在家里了.晚上上载 >Zhiyuan.Ma> 今天打算翻"UDP网络" >Zhiyuan.Ma> 以前没有翻过东西,还请大家多多指正. > >Zhiyuan.Ma> 另外麻烦Zoomq看看是不是wiki格式我写的不对,怎么实例代码看起来和前面的很不同. > >Zhiyuan.Ma> 致 >Zhiyuan.Ma> 礼! > > >Zhiyuan.Ma> Jerry Marx >Zhiyuan.Ma> zhiyuan.ma at enorbus.com.cn >Zhiyuan.Ma> 2004-08-02 > > >********************************************/ > >-- >Free as in Freedom > > Zoom.Quiet > >#=========================================# >]Time is unimportant, only life important![ >#=========================================# > >sender is the Bat!2.12.00 > >_______________________________________________ >python-chinese list >python-chinese at lists.python.cn >http://python.cn/mailman/listinfo/python-chinese > = = = = = = = = = = = = = = = = = = = = 致 礼! Jerry Marx zhiyuan.ma at enorbus.com.cn 2004-08-02
2004年08月02日 星期一 10:18
HD,您好! 明明有呀,how-to中都有。再说这也是socket中的一种标准呀。 ======= 2004-08-02 09:24:40 您在来信中写道:======= >不知为什么这位黎达同仁对twisted一直很鄙视,到是听说他以经用python写了很牛的东东呢。 :) >他们的应用一定支持udp,我们慢慢挖twisted罢,如果不成我们给twisted加上udp功能好不好? ^_^ > >On Mon, 2 Aug 2004 09:10:46 +0800, limodou <chatme at 263.net> wrote: >> 黎达?ldw,您好! >> >> 怎么可能没有。 >> > >-- >HD(燃烧中的火) >我工作我快乐,我勤奋我收获。请与我一起快乐,与我一起收获。 >_______________________________________________ >python-chinese list >python-chinese at lists.python.cn >http://python.cn/mailman/listinfo/python-chinese > = = = = = = = = = = = = = = = = = = = = 致 礼! limodou chatme at 263.net 2004-08-02
2004年08月02日 星期一 10:18
info,您好! api也是python源代码呀。我的意思是我们把该做的都做了,别人只是一个简单的调用罢了。 ======= 2004-08-02 09:55:01 您在来信中写道:======= >limodou,您好! > > 直接提供python的代码不是好些吗?我们是在做开源的项目啊。如果别人有兴趣可以用其他语言按照协议来重些不就行了吗? > >======= 2004-08-02 09:10:14 您在来信中写道:======= > >>info,您好! >> >> 我想对于客户端我们首先要提供的是一个可用的API包。那么这个API包可能就有线程的内容。我们不仅要考虑稳定,还要考虑可扩展性。我们不能排除客户端的多线程访问,也许API不提供,那么客户端可能就会自已来实现了,既然如此,还不如由我们来提供为好。 >> >>======= 2004-08-02 08:52:45 您在来信中写道:======= >> >>>limodou,您好! >>> >>> 用twisted写的服务器端本身就处理的多线程,这个大家可以用我们做测试的例子来试。 >>> 对于客户端来讲,除非是传输文件本身,没有必要采用多线程。 >>> 我的意见是,达到本期的产品基线,然后用最稳定、最简洁的方式来实现。 >>> >>>======= 2004-08-01 16:50:58 您在来信中写道:======= >>> >>>>hoxide,您好! >>>> >>>> 的确,整个程序只有一个线程,那么这种异步都通过twisted来完成,的确象queue这种阻塞方式就无法实现了。多线程,多点测试才更符合实际。 >>>> >>>> >>>>======= 2004-08-01 15:28:13 您在来信中写道:======= >>>> >>>>>limodou,您好! >>>>> >>>>> 开始我们也尝试过用queue的阻塞处理,但这样就阻塞了主线程,连recive都不行. >>>>>这个问题的根本解决方案还是用线程,我只是提供一种类似的东西("轻便线程"http://www-900.ibm.com/developerWorks/cn/linux/sdk/python/) >>>>>另外我觉得应该建一个多连接的测试程序,而不只是一个连接多请求的测试程序. >>>>>而窗口应该放在服务端比较好一点 >>>>> >>>>>======= 2004-08-01 14:54:55 您在来信中写道:======= >>>>> >>>>>>hoxide,您好! >>>>>> >>>>>> 其实真正的数据发送是由客户端做的,我们可以把连接、发送数据等进行封装由客户端来调用。这样由客户端去组织数据,而我们的协议处理只是一个被调用方就行了。因为这只是一个测试程序,还不是真正的应用,因此可能就不讲究了。真正做成客户端,可能程序都要改了。既然我们不想发送太快,queue完全可以采用阻塞方式来处理。 >>>>>> >>>>>>======= 2004-08-01 14:31:17 您在来信中写道:======= >>>>>> >>>>>>>limodou,您好! >>>>>>> >>>>>>> 这点我直到但是程序还是依赖一个全局变量,对于复杂的情况,这种用法是不好的,首先明显得会带来名字空间的污染,其次如果程序执行的上下文关系复杂,那么也就不是几个全局变量能轻松解决的. >>>>>>> >>>>>>> >>>>>>>======= 2004-08-01 14:07:21 您在来信中写道:======= >>>>>>> >>>>>>>>hoxide,您好! >>>>>>>> >>>>>>>> 其实不丢message也可以,这样不用使用生成器。只要把message生成放到else中就行了。因为那时是可以发送数据的。之所以丢是因为先生成了message,然后才判断是否可以发送,如果不能发送自然就丢了。如果改到可以发送才生成message就不会丢了。 >>>>>>>> >>>>>>>> while nownum < count: >>>>>>>> if self.factory.sendQueue.full(): >>>>>>>> self.call = reactor.callLater(0, self.testserver) >>>>>>>> return >>>>>>>> else: >>>>>>>> message = usspmsg.USSPMessage() #* >>>>>>>> message.setMsgName('mail_counter') #* >>>>>>>> message.body.setField('uid',str(nownum)) #* 这几行移下来了 >>>>>>>> self.factory.sendQueue.put_nowait(message) >>>>>>>> nownum += 1 >>>>>>>> >>>>>>>>======= 2004-08-01 12:19:47 您在来信中写道:======= >>>>>>>> >>>>>>>>>HD,您好! >>>>>>>>> >>>>>>>>>大家最好先了解一下生成器的有关知识:IBM上的《可爱的 Python:迭代器和简单生成器》: http://www-900.ibm.com/developerWorks/cn/linux/sdk/python/charm-20/index.shtml >>>>>>>>> >>>>>>>>>昨天给的代码还有点错误,修改的代码(其实只改了打星号的地方): >>>>>>>>> >>>>>>>>> def testserver(self): >>>>>>>>> """向服务器发的测试报文""" >>>>>>>>> try: >>>>>>>>> self.pp.next() >>>>>>>>> self.call = reactor.callLater(0,self.testserver) >>>>>>>>> return >>>>>>>>> except StopIteration: >>>>>>>>> pass >>>>>>>>> >>>>>>>>> def __init__(self): >>>>>>>>> self.pp=self.sendQQ() >>>>>>>>> ussp.USSClientQueueProtocol.__init__(self) >>>>>>>>> >>>>>>>>> def sendQQ(self): >>>>>>>>> global nownum >>>>>>>>> global count >>>>>>>>> i=1 >>>>>>>>> while i < count: >>>>>>>>> message = usspmsg.USSPMessage() >>>>>>>>> message.setMsgName('mail_counter') >>>>>>>>> message.body.setField('uid',str(i)) >>>>>>>>> while self.factory.sendQueue.full(): #* >>>>>>>>> yield None #** >>>>>>>>> self.factory.sendQueue.put_nowait(message) >>>>>>>>> i += 1 >>>>>>>>> nownum=i >>>>>>>>> self.disconnect() >>>>>>>>> >>>>>>>>>这里真正的处理是在sendQQ这个函数定义的.self.pp是生成器的实例,由__init__()生成,testserver只是调度完成这个处理的函数,而且是和具体的处理独立的,他只是简单得实现了当处理"暂停"后的重新启动. >>>>>>>>> >>>>>>>>>真正神奇的地方是打星号的行.他测试sendQueue确定是否能发出message,如果不能就会执行yield None,这时函数就终止在**这行,直到在有.next()方法调用时再从这句开始执行. >>>>>>>>>这个好处是原来的处理流程可以很顺利得进行.不需要保存中间变量.注意0731a的testserver能正确得发出所有message,是因为恰巧有全局变量nownum完全确定处理的执行状态了.但事事上一般的处理不会那么简单,有复杂的状态组合(上面的代码并没用nownum,而是用了循环变量i,注意他不是全局的!!!!!).正像zoomq昨天说的0731a的testserver在queue满的时候前面对message的处理就被抛弃了,但在这个生成器版本,先前对message的处理没有被抛弃. >>>>>>>>> >>>>>>>>>个人觉得这个生成器版本还是不够完美,异步传输还是应该以线程为基础进行.下一个版本可能是基于生成器的简单线程:) >>>>>>>>> >>>>>>>>>说得不是很明白,我不清楚大家对什么地方有疑问. >>>>>>>>> >>>>>>>>> >>>>>>>>>===== 2004-08-01 00:33:08 您在来信中写道:======= >>>>>>>>> >>>>>>>>>>细说说,为什么说是生成器版的呢? >>>>>>>>>> >>>>>>>>>>On Sat, 31 Jul 2004 23:22:53 +0800, hoxide <hoxide_dirac at yahoo.com.cn> wrote: >>>>>>>>>>> python-chinese,您好! >>>>>>>>>>> >>>>>>>>>>> 为什么要用生成器,现在的testserver的执行流程只依赖于nownum,而事实上通常的服务要依赖于整个运行流程.另外这样的写法可将窗口部分的代码抽出. >>>>>>>>>>> >>>>>>>>>>> 致 >>>>>>>>>>> 礼! >>>>>>>>>>> >>>>>>>>>>> hoxide >>>>>>>>>>> hoxide_dirac at yahoo.com.cn >>>>>>>>>>> 2004-07-31 >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>-- >>>>>>>>>>HD(燃烧中的火) >>>>>>>>>>我工作我快乐,我勤奋我收获。请与我一起快乐,与我一起收获。 >>>>>>>>>>_______________________________________________ >>>>>>>>>>python-chinese list >>>>>>>>>>python-chinese at lists.python.cn >>>>>>>>>>http://python.cn/mailman/listinfo/python-chinese >>>>>>>>>> >>>>>>>>> >>>>>>>>>= = = = = = = = = = = = = = = = = = = = >>>>>>>>> >>>>>>>>> >>>>>>>>> 致 >>>>>>>>>礼! >>>>>>>>> >>>>>>>>> >>>>>>>>> hoxide >>>>>>>>> hoxide_dirac at yahoo.com.cn >>>>>>>>> 2004-08-01 >>>>>>>>> >>>>>>>>>_______________________________________________ >>>>>>>>>python-chinese list >>>>>>>>>python-chinese at lists.python.cn >>>>>>>>>http://python.cn/mailman/listinfo/python-chinese >>>>>>>>> >>>>>>>> >>>>>>>>= = = = = = = = = = = = = = = = = = = = >>>>>>>> >>>>>>>> >>>>>>>> 致 >>>>>>>>礼! >>>>>>>> >>>>>>>> >>>>>>>> limodou >>>>>>>> chatme at 263.net >>>>>>>> 2004-08-01 >>>>>>>> >>>>>>>>_______________________________________________ >>>>>>>>python-chinese list >>>>>>>>python-chinese at lists.python.cn >>>>>>>>http://python.cn/mailman/listinfo/python-chinese >>>>>>>> >>>>>>> >>>>>>>= = = = = = = = = = = = = = = = = = = = >>>>>>> >>>>>>> >>>>>>> 致 >>>>>>>礼! >>>>>>> >>>>>>> >>>>>>> hoxide >>>>>>> hoxide_dirac at yahoo.com.cn >>>>>>> 2004-08-01 >>>>>>> >>>>>>>_______________________________________________ >>>>>>>python-chinese list >>>>>>>python-chinese at lists.python.cn >>>>>>>http://python.cn/mailman/listinfo/python-chinese >>>>>>> >>>>>> >>>>>>= = = = = = = = = = = = = = = = = = = = >>>>>> >>>>>> >>>>>> 致 >>>>>>礼! >>>>>> >>>>>> >>>>>> limodou >>>>>> chatme at 263.net >>>>>> 2004-08-01 >>>>>> >>>>>>_______________________________________________ >>>>>>python-chinese list >>>>>>python-chinese at lists.python.cn >>>>>>http://python.cn/mailman/listinfo/python-chinese >>>>>> >>>>> >>>>>= = = = = = = = = = = = = = = = = = = = >>>>> >>>>> >>>>> 致 >>>>>礼! >>>>> >>>>> >>>>> hoxide >>>>> hoxide_dirac at yahoo.com.cn >>>>> 2004-08-01 >>>>> >>>>>_______________________________________________ >>>>>python-chinese list >>>>>python-chinese at lists.python.cn >>>>>http://python.cn/mailman/listinfo/python-chinese >>>>> >>>> >>>>= = = = = = = = = = = = = = = = = = = = >>>> >>>> >>>> 致 >>>>礼! >>>> >>>> >>>> limodou >>>> chatme at 263.net >>>> 2004-08-01 >>>> >>>>_______________________________________________ >>>>python-chinese list >>>>python-chinese at lists.python.cn >>>>http://python.cn/mailman/listinfo/python-chinese >>>> >>> >>>= = = = = = = = = = = = = = = = = = = = >>> >>> >>> 致 >>>礼! >>> >>> >>> info >>> info at xichen.com >>> 2004-08-02 >>> >>>_______________________________________________ >>>python-chinese list >>>python-chinese at lists.python.cn >>>http://python.cn/mailman/listinfo/python-chinese >>> >> >>= = = = = = = = = = = = = = = = = = = = >> >> >> 致 >>礼! >> >> >> limodou >> chatme at 263.net >> 2004-08-02 >> >>_______________________________________________ >>python-chinese list >>python-chinese at lists.python.cn >>http://python.cn/mailman/listinfo/python-chinese >> > >= = = = = = = = = = = = = = = = = = = = > > > 致 >礼! > > > info > info at xichen.com > 2004-08-02 > >_______________________________________________ >python-chinese list >python-chinese at lists.python.cn >http://python.cn/mailman/listinfo/python-chinese > = = = = = = = = = = = = = = = = = = = = 致 礼! limodou chatme at 263.net 2004-08-02
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