cURL / Mailing Lists / curl-library / Single Mail


RE: Signal handling issues with libcurl ?

From: Jeff Seeman <>
Date: Wed, 5 Nov 2008 11:55:52 -0800


Please remove me from your e-mail list. Thank you.


-----Original Message-----
From: [] On Behalf Of Dan Fandrich
Sent: Wednesday, November 05, 2008 11:49 AM
Subject: Re: Signal handling issues with libcurl ?

On Wed, Nov 05, 2008 at 06:34:07AM -0800, Hassan Shaik wrote:
> - Before invoking native code (which internally calls libcurl API),
> this signal handler works fine and JVM does not crash when SIGPIPE
> signal is raised.
> - But, once the native code is called, the Java signal handler is not
> working and not catching SIGPIPE any more. JVM just crashes. Looks
> like, it is set to SIG_DFL.
> Is libcurl modifies the signal handling behavior and does not restore
> back to the original signal handling behavior of the application?

libcurl does modify the SIGPIPE handler at the start of a transfer, but restores it back to the old handler once the transfer is complete.

> I read through about CURLOPT_NOSIGNAL option. Does setting this flag
> to
> 1 help anyway?

If you set this flag then libcurl won't change any signal handler. But that has other side effects that may or may not affect your program.

>>> Dan

--              The web change of address service
          Let webmasters know that your web site has moved
Received on 2008-11-05