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Diffstat (limited to 'glibc/signal.mdwn')
| -rw-r--r-- | glibc/signal.mdwn | 31 |
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diff --git a/glibc/signal.mdwn b/glibc/signal.mdwn new file mode 100644 index 00000000..67028fef --- /dev/null +++ b/glibc/signal.mdwn @@ -0,0 +1,31 @@ +[[!meta copyright="Copyright © 2009, 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]]."]]"""]] + +The [[*UNIX signalling mechanism*|unix/signal]] is implemented for the GNU Hurd +by means of a separate *signal-handling [[thread]]* that is part of every +[[process]]. This makes handling of signals a separate thread of control. + + * [[SA_SIGINFO, SA_SIGACTION|open_issues/sa_siginfo_sa_sigaction]] + + * Why does `kill` hang sometimes? + + <youpi> kill send the signal to the process + <youpi> if the process is hung, killing waits + <youpi> signals should be just asynchronous, but apparently for some + reason Roland & co wanted some synchronization + + [[!taglink open_issue_glibc]] + + +# Further Reading + + * {{$unix#djb_self-pipe}}. + + * {{$unix#rjk_fork}}. |