29 lines
894 B
Rust
29 lines
894 B
Rust
// SPDX-License-Identifier: MPL-2.0
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use super::SyscallReturn;
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use crate::{
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prelude::*,
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process::{wait_child_exit, ProcessFilter, WaitOptions},
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};
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pub fn sys_waitid(
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which: u64,
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upid: u64,
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_infoq_addr: u64,
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options: u64,
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_rusage_addr: u64,
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ctx: &Context,
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) -> Result<SyscallReturn> {
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// FIXME: what does infoq and rusage use for?
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let process_filter = ProcessFilter::from_which_and_id(which, upid)?;
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let wait_options = WaitOptions::from_bits(options as u32)
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.ok_or(Error::with_message(Errno::EINVAL, "invalid options"))?;
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let waited_process =
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wait_child_exit(process_filter, wait_options, ctx).map_err(|err| match err.error() {
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Errno::EINTR => Error::new(Errno::ERESTARTSYS),
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_ => err,
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})?;
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let pid = waited_process.map_or(0, |process| process.pid());
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Ok(SyscallReturn::Return(pid as _))
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}
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