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ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术

...q_connect (s, "tcp://192.168.0.111:5555"); /* Message routing */ const char data [] = "ABC"; zmq_send (s, data, sizeof (data), 0); 区分拓扑建立和消息路由严格地说不是不可缺少的。毕竟,混合这两个为一个单独的函数是很容易的: zmq_send (s, "tcp://19...
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How can I make a horizontal ListView in Android? [duplicate]

...d of "HorizontalListView", the "i" is too much) to update child-views when selected. UPDATE: My code that I posted here was wrong I suppose, as I ran into trouble with selection (i think it has to do with view recycling), I have to go back to the drawing board... UPDATE 2: Ok Problem solved, I sim...
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关于php的socket初探 - PHP - 清泛IT论坛,有思想、有深度

...连接的模型都应该被称为多路复用,目前比较常用的有 select/poll/epoll/kqueue 这些 IO 模型(目前也有像 Apache 这种每个连接用单独的进程/线程来处理的 IO 模型,但是效率相对比较差,也很容易出问题,所以暂时不做介绍了)。在...
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How to connect to LocalDB in Visual Studio Server Explorer?

...11.0 Copy the Instance pipe name that starts with np:\... In Visual Studio select TOOLS > Connect to Database... For Server Name enter (localdb)\v11.0. If it didn't work, use the Instance pipe name that you copied earlier. You can also use this to connect with SQL Management Studio. Select the da...
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What does the double colon (::) mean in CSS?

... It means pseudo element selector. It means the element to the right doesn't exist in the normal DOM, but can be selected. A pseudo-element is made of two colons (::) followed by the name of the pseudo-element. Source It was originally only a ...
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nuget 'packages' element is not declared warning

...r problem permanently. If you go to the path of adding XSD (From Xml menu, select "Create schema"), you will end up having problems with the package manager as it will clean up your packages.config file when you add a new package. The best solution is just ignore by closing the file when you don't ...
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How to change the name of the active scheme in Xcode?

...t Scheme" from the "Product" menu. Click on the "Manage Schemes…" button Select the scheme whose name you wish to change Press the "Return" key It will select the name of the scheme and allow you to edit it. share ...
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How to pull a random record using Django's ORM?

...on't know about other databases). order_by('?')[:N] will be translated to SELECT ... FROM ... WHERE ... ORDER BY RAND() LIMIT N query. It means that for every row in table the RAND() function will be executed, then the whole table will be sorted according to value of this function and then first N...
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Perform commands over ssh with Python

...ease share your knowledge #!/usr/bin/python import os import sys import select import paramiko import time class Commands: def __init__(self, retry_time=0): self.retry_time = retry_time pass def run_cmd(self, host_ip, cmd_list): i = 0 while True: ...
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How to get current CPU and RAM usage in Python?

...ervice.ConnectServer(strComputer,"root\cimv2") query_str = '''Select * from %s%s''' % (self.win32_perf_base,counter_type) colItems = objSWbemServices.ExecQuery(query_str) # "Select * from Win32_PerfFormattedData_PerfProc_Process")# changed from Win32_Thread ...