[[!meta copyright="Copyright © 2010 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled [[GNU Free Documentation License|/fdl]]."]]"""]] [[!meta title="SA_SIGINFO, SA_SIGACTION"]] [[!tag open_issue_glibc]] IRC, #hurd, August / September 2010: <giselher> Hy, I came across SA_SIGINFO in cherokee, I have the void sighandler(int num) prototype but how do I add the sa_handler field? <pinotree> if SA_SIGACTION is not defined, then you use sa_handler instead of sa_sigaction, and not add SA_SIGINFO in the sa_flags <giselher> SA_SIGINFO is not defined <pinotree> s/SA_SIGACTION/SA_SIGINFO/ above, yes <giselher> K <giselher> I am not sure if I fully understand this, there is the line "act.sa_flags = SA_SIGINFO" and how do I have to change that >_> <pinotree> can you paste the source in a pastebin? <giselher> k <giselher> http://archhurd.pastebin.com/N8BCnG6g at line 790 <pinotree> something along the lines of http://www.archhurd.pastebin.com/tdpcFD5G <pinotree> note that in the handler the siginfo_t parameter is used, which cannot be done if SA_SIGINFO is not defined <pinotree> (that code still won't compile, yet) <giselher> btw: is there a reason why SA_SIGINFO is not implemented? <giselher> the guildlines only say "It's not implemented" <azeem> 09:43 < azeem> signal stuff is tricky :-/ <azeem> basically it was pending on a complete rewrite by Roland, which never occured <youpi> I have an almost complete implementation, just not finished yet <youpi> (only the siginfo part) <azeem> nobody really groked that code for years until youpi showed up, but he added partial support AFAIK, not having much time on his hand <azeem> ah, he's here <azeem> :) <giselher> oh, should I just wait ? <youpi> no <giselher> k <youpi> there are OSes which don't have SA_SIGINFO <youpi> just cope with them: use sa_handler instead of sa_sigaction, and don't set SA_SIGINFO <youpi> (i.e. replace with 0 in your example) <giselher> ok <youpi> when SA_SIGINFO becomes available, it'll just be used