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AK+Kernel: Specialize Trie for NNOP<KString> and use it in UnveilNode

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This let's us avoid the infallible String allocations.
This commit is contained in:
Idan Horowitz 2022-02-15 20:59:25 +02:00 • committed by Andreas Kling
parent 0218c62be4
commit 316fa0c3f3
6 changed files with 31 additions and 13 deletions
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3
Kernel/Process.cpp
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@ -218,7 +218,8 @@ void Process::unprotect_data()
ErrorOr<NonnullRefPtr<Process>> Process::try_create(RefPtr<Thread>& first_thread, NonnullOwnPtr<KString> name, UserID uid, GroupID gid, ProcessID ppid, bool is_kernel_process, RefPtr<Custody> cwd, RefPtr<Custody> executable, TTY* tty, Process* fork_parent)
{
auto space = TRY(Memory::AddressSpace::try_create(fork_parent ? &fork_parent->address_space() : nullptr));
auto process = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) Process(move(name), uid, gid, ppid, is_kernel_process, move(cwd), move(executable), tty, UnveilNode { "/"sv, UnveilMetadata(TRY(KString::try_create("/"sv))) })));
auto unveil_tree = UnveilNode { TRY(KString::try_create("/"sv)), UnveilMetadata(TRY(KString::try_create("/"sv))) };
auto process = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) Process(move(name), uid, gid, ppid, is_kernel_process, move(cwd), move(executable), tty, move(unveil_tree))));
TRY(process->attach_resources(move(space), first_thread, fork_parent));
return process;
}