roundtrip | 易学教程

Howto ignore unknown types with DataContractSerializer

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问题 I try to use DataContractSerializer in my application in order to be backward and forward compatible and to support round trip (if possible). Is it possible to support round trip, or if not, is it possible to just ignore unknown types in the following scenario? Suppose I have a class ClassWithObject that has a property of type object and the older version of my application stored an object of type CurrentAdditionalData in this property. [DataContract] [KnownType(typeof(CurrentAdditionalData))

Howto ignore unknown types with DataContractSerializer

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Plot RTT histogram using wireshark or other tool

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问题 I have a little office network and I'm experiencing a huge internet link latency. We have a simple network topology: a computer configured as router running ubuntu server 10.10, 2 network cards (one to internet link, other to office network) and a switch connecting 20 computers. I have a huge tcpdump log collected at the router and I would like to plot a histogram with the RTT time of all TCP streams to try to find out the best solution to this latency problem. So, could somebody tell me how

Nginx convert subdomain to path component without redirect

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问题 The idea is to take incoming requests to http://abc.example.com/... and rewrite them to http://example.com/abc/... That's easy enough to do with a 301/302 redirect: # rewrite via 301 Moved Permanently server { listen 80; server_name abc.example.com; rewrite ^ $scheme://example.com/abc$request_uri permanent; } The trick is to do this URL change transparently to the client when abc.example.com and example.com point at the same Nginx instance. Put differently, can Nginx serve the contents from

Modify the version information of a built .NET assembly

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问题 Is there a better way to modify the version information of a .NET assembly of the one I am currently using. My current approach is the following. I do disassemble the assembly with ildasm : ildasm /nobar Riolo.WebUI.dll /out=Riolo.WebUI.il This will generated also a Riolo.WebUI.res compiled resource file, that I then open and modify with the user interface of Visual Studio, then I do reassemble the assembly back with ilasm : ilasm Riolo.WebUI.il /OUTPUT=Riolo.WebUI.dll /RESOURCE=Riolo.WebUI

Generating JavaScript from a JSLINT parse tree

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问题 With Crockford's JSLINT, after calling JSLINT() to parse some JavaScript source, it provides access to the parse tree via JSLINT.tree It would be really powerful to be able to analyse the tree, make structural changes to it based on the analysis and then generate new JavaScript from the modified tree. Is there an open source project that builds on JSLINT by providing a conversion from a parse tree back to JavaScript? (Is this even possible, i.e. does JSLINT keep complete enough information

jEditable: Display Option Text (and not Value) after submit

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问题 I'm using jEditable on a Select list. It works beautifully, except for the following issue. jEditable displays in place whatever a server posts back after a submit. That works great for text boxes etc. where you can simply post the submitted value back from the server. However, this makes no sense on select lists because the value posted is simply the Id of an option element. If I post that back, then my text changes to the Id instead of the friendly text that was there before. How can I turn

jEditable: Display Option Text (and not Value) after submit

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I'm using jEditable on a Select list. It works beautifully, except for the following issue. jEditable displays in place whatever a server posts back after a submit. That works great for text boxes etc. where you can simply post the submitted value back from the server. However, this makes no sense on select lists because the value posted is simply the Id of an option element. If I post that back, then my text changes to the Id instead of the friendly text that was there before. How can I turn this behavior off? I don't want to have to fetch the text value using the submitted Id from from the

Do good multiplayer/mmo client<>server games use latency within movement calculations?

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问题 There's a couple of questions here. Imagine I have client A who's going to send the following message to Server: "START MOVEMENT FORWARD". The server will not receive this message instantly, as there is a delay because of latency. Question 1: ping (or better: round trip time) is the amount of time it takes for the client to send a message to the server and receive a response back. Does this mean the following if you can ignore the time it takes for the server to notice that it has received a

batch http requests

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问题 Does anyone know a standard way to batch http requests? Meaning - sending multiple http atomic requests in one round trip? We need such mechanism in our REST API implementation for performance reasons. This kind of mechanism can reduce dramatically the number of round trips that the client needs to perform to consume the API. Thanks in advance, Shay 回答1: Define a new resource that contains the data the client wants. See http://roy.gbiv.com/untangled/2008/rest-apis-must-be-hypertext-driven