* Dean Anderson: > I have noticed that printf in glibc (glibc 2.3.5, i386) is not pthread > cancellation safe, though printf on Solaris is cancellation safe. > Specifically, canceling a thread in printf leads to deadlock. > > What should one expect regarding cancelation safety in standard > libraries? Is this a bug in glibc? Asynchronous cancellation is inherently unsafe. I can't find a full list of functions which may be called from a thread which is subject to asynchronous cancellation right now, but it is undoubtly very short and does not include anything which touches the heap or uses the stdio I/O facilities. Most bare system calls (read, write, close, pipe) should be fine, though.
