On Dec 31, 2014, "Carlos O'Donell" <carlos@xxxxxxxxxx> wrote: > A function is synchronously reentrant if a thread may safely > call the function before a previous call to the same function > by the same thread completes, but need not be safe if the > second or subsequent calls are made while handling an > asynchronous signal or by another thread. I'd qualify the asynchronous signal to state that it need not be safe only if the signal interrupted asynchronously the execution of the previous call, otherwise it would also allow a(n indirectly) recursive function, called from the signal handler for the first time, to be unsafe when called recursively. I.e., stack traces such as: foo bar foo [...] <signal> [...no foo...] main should be just as safe as: foo bar foo [...no foo...] main but it's ok if foo is unsafe here: foo bar [...] <signal> [...] foo [...] -- Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/ You must be the change you wish to see in the world. -- Gandhi Be Free! -- http://FSFLA.org/ FSF Latin America board member Free Software Evangelist|Red Hat Brasil GNU Toolchain Engineer -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
