blocking

问题 I would like to have a server that connects to one client at a time, ignoring connection request when connected to a given client. I would also liked to avoid the server to get locked when listening for the first client, so that the program can be terminated cleanly. Apparently, sockets can be made non blocking: http://beej.us/guide/bgnet/output/html/singlepage/bgnet.html#blocking I created my socket accordingly (error management code removed for clarity) int sockfd; struct sockaddr_in self;

问题 I would like to have a server that connects to one client at a time, ignoring connection request when connected to a given client. I would also liked to avoid the server to get locked when listening for the first client, so that the program can be terminated cleanly. Apparently, sockets can be made non blocking: http://beej.us/guide/bgnet/output/html/singlepage/bgnet.html#blocking I created my socket accordingly (error management code removed for clarity) int sockfd; struct sockaddr_in self;

问题 I'm using blocking sockets and I'm quite confused about recv() because I didn't find any decent documentation about it. The official one seems restricted to me. The other thing that is confusing me is that people on the internet(and also on this site) says that it doesn't raise any exception for blocking sockets, but it simply keeps waiting. If I brutally close the server it throws an Errno 10054(socket.error) instead. 回答1: To put it simply, recv will throw an exception whenever the

问题 I would like to create some method to be used in a generic way, were it would block (unless a certain timeout expires) until a given condition is met. The usage in code would be something similar to: WaitUntil( condition ); I have tried implementing it using a While ( .. ) loop, however this seems like a waste. In current implementation, i am initializing a 'one-off' timer that expires at TIMEOUT. I am running a while loop, and checking if the timer has timed out or not, throwing an exception

问题 I seem to have a blocking issue with WCF. Say I have two users and each have created their own instance of a class exposed on a WCF host using net.tcp with endpoint something like this "net.tcp://localhost:32000/SymHost/". The class is PerSession context and concurrency is reentrant. The class exposes two methods Alive() which return a bool of true straight away and an AliveWait which I inserted which does a Thread.Sleep for 4 seconds before returning true (testing purposes). Now client 1

问题 I would like to block my app from running in emulators such as bluestacks/youwave etc. Is there anyway I can block or even identify if the user is running in bluestacks/youwave? My app has logging in features. So it users the server as well, so I dont mind blocking the user at clientside/serverside as long as he's blocked. Any help would be greatly appreciated. 回答1: 1: Check for SIM Number and deny access to whoever has none. This includes tablets since you stated that you wanted to block

问题 I would like to block my app from running in emulators such as bluestacks/youwave etc. Is there anyway I can block or even identify if the user is running in bluestacks/youwave? My app has logging in features. So it users the server as well, so I dont mind blocking the user at clientside/serverside as long as he's blocked. Any help would be greatly appreciated. 回答1: 1: Check for SIM Number and deny access to whoever has none. This includes tablets since you stated that you wanted to block

问题 I'd like the system to be as automated for my users as possible. Right now, I have code that runs when the user clicks a button. The code takes data with the intention of applying it to a word document via mail merge. Everything works as intended except there's always a message that pops up saying Opening this document will run the following SQL command: Select * FROM 'TAGS$' Data from your database will be placed in the document. Do you want to continue? I need to keep this as simple as

问题 I'm using Firebug 1.5.2 and while testing a site before production release i can see a huge amount of time consumed by 'Blocking' parts of the requests. What exactly does the 'Blocking' mean? 回答1: "Blocking" previously (earlier versions of FireBug) was called "Queuing". It actually means that request is sitting in queue waiting for available connection. As far as I know number of persistent connections by default is limited in last versions of Firefox to 6, IE8 also 6. Earlier it was only 2.

问题 I'm using Firebug 1.5.2 and while testing a site before production release i can see a huge amount of time consumed by 'Blocking' parts of the requests. What exactly does the 'Blocking' mean? 回答1: "Blocking" previously (earlier versions of FireBug) was called "Queuing". It actually means that request is sitting in queue waiting for available connection. As far as I know number of persistent connections by default is limited in last versions of Firefox to 6, IE8 also 6. Earlier it was only 2.