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Top Forums Programming select() system call takes longer than the timeout specified Post 302410489 by old_as_a_fossil on Tuesday 6th of April 2010 06:45:18 AM
Old 04-06-2010
Sorry I was busy with other tasks for the past few days.
Quote:
Originally Posted by jim mcnamara
You are not blocking the socket are you - that will break select?

for example see:
Linux-Kernel Archive: Re: UDP recvmsg blocks after select(), 2.6 bug?
No, I'm not operating on sockets directly. I'm just using the libcurl library. Which is also a widely used library and I dont think they would do something silly like that.
 

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libcurl(3)						      libcurl easy interface							libcurl(3)

NAME
libcurl-easy - easy interface overview DESCRIPTION
When using libcurl's "easy" interface you init your session and get a handle (often referred to as an "easy handle"), which you use as input to the easy interface functions you use. Use curl_easy_init(3) to get the handle. You continue by setting all the options you want in the upcoming transfer, the most important among them is the URL itself (you can't transfer anything without a specified URL as you may have figured out yourself). You might want to set some callbacks as well that will be called from the library when data is available etc. curl_easy_setopt(3) is used for all this. When all is setup, you tell libcurl to perform the transfer using curl_easy_perform(3). It will then do the entire operation and won't return until it is done (successfully or not). After the transfer has been made, you can set new options and make another transfer, or if you're done, cleanup the session by calling curl_easy_cleanup(3). If you want persistent connections, you don't cleanup immediately, but instead run ahead and perform other transfers using the same easy handle. libcurl 7.10.7 12 Aug 2003 libcurl(3)
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