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Kernel+LibC: Implement sigtimedwait()

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This includes a new Thread::Blocker called SignalBlocker which blocks
until a signal of a matching type is pending. The current Blocker
implementation in the Kernel is very complicated, but cleaning it up is
a different yak for a different day.
This commit is contained in:
Idan Horowitz 2021-12-12 01:01:42 +02:00
parent 13d98999b7
commit 762e047ec9
8 changed files with 120 additions and 0 deletions
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Kernel/Process.h
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@ -338,6 +338,7 @@ public:
ErrorOr<FlatPtr> sys$sigaltstack(Userspace<const stack_t*> ss, Userspace<stack_t*> old_ss);
ErrorOr<FlatPtr> sys$sigprocmask(int how, Userspace<const sigset_t*> set, Userspace<sigset_t*> old_set);
ErrorOr<FlatPtr> sys$sigpending(Userspace<sigset_t*>);
ErrorOr<FlatPtr> sys$sigtimedwait(Userspace<sigset_t const*>, Userspace<siginfo_t*>, Userspace<const timespec*>);
ErrorOr<FlatPtr> sys$getgroups(size_t, Userspace<gid_t*>);
ErrorOr<FlatPtr> sys$setgroups(size_t, Userspace<const gid_t*>);
ErrorOr<FlatPtr> sys$pipe(int pipefd[2], int flags);