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SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Debug.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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KResultOr<siginfo_t> Process::do_waitid(idtype_t idtype, int id, int options)
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{
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KResultOr<siginfo_t> result = KResult(KSuccess);
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if (Thread::current()->block<Thread::WaitBlocker>({}, options, idtype, id, result).was_interrupted())
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return EINTR;
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VERIFY(!result.is_error() || (options & WNOHANG) || result.error() != KSuccess);
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return result;
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}
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KResultOr<pid_t> Process::sys$waitid(Userspace<const Syscall::SC_waitid_params*> user_params)
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{
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REQUIRE_PROMISE(proc);
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Syscall::SC_waitid_params params;
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if (!copy_from_user(¶ms, user_params))
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return EFAULT;
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switch (params.idtype) {
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case P_ALL:
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case P_PID:
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case P_PGID:
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break;
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default:
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return EINVAL;
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}
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dbgln_if(PROCESS_DEBUG, "sys$waitid({}, {}, {}, {})", params.idtype, params.id, params.infop, params.options);
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auto siginfo_or_error = do_waitid(static_cast<idtype_t>(params.idtype), params.id, params.options);
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if (siginfo_or_error.is_error())
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return siginfo_or_error.error();
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if (!copy_to_user(params.infop, &siginfo_or_error.value()))
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return EFAULT;
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return 0;
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}
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}
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