On Tue, Feb 14, 2012 at 9:50 AM, Paolo Bonzini <pbonz...@redhat.com> wrote: > On 02/14/2012 10:24 AM, Stefan Hajnoczi wrote: >> >> setjmp() followed by return is usually bad. We're relying on the fact >> that the return code path here does not clobber local variables 'self' >> and 'co'. Can't we longjmp out back to the coroutine_new() function >> instead? > > > http://www.gnu.org/software/pth/rse-pmt.ps covers this. Basically, this > turned out to be more portable than longjmp from a signal handler.
I suggest adding a comment explaining this, since this is normally not an okay thing to do. Stefan
