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363273111a
`cargo +nightly fmt` Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de> On-behalf-of: SAP philipp.schuster@sap.com
39 lines
958 B
Rust
39 lines
958 B
Rust
// Copyright 2021 Alyssa Ross <hi@alyssa.is>
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// SPDX-License-Identifier: Apache-2.0
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use libc::{SYS_clone3, c_long, size_t, syscall};
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pub const CLONE_CLEAR_SIGHAND: u64 = 0x100000000;
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#[repr(C)]
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#[derive(Default)]
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#[allow(non_camel_case_types)]
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pub struct clone_args {
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pub flags: u64,
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pub pidfd: u64,
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pub child_tid: u64,
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pub parent_tid: u64,
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pub exit_signal: u64,
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pub stack: u64,
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pub stack_size: u64,
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pub tls: u64,
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pub set_tid: u64,
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pub set_tid_size: u64,
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pub cgroup: u64,
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}
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/// # Safety
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/// `size` must have the proper size to match `args`.
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/// Further, the caller needs to check the return value.
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///
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/// # Return
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/// - On success:
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/// - Parent: child PID (`c_long`)
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/// - Child: `0`
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/// - On error: `-1` and `errno` is set
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#[must_use]
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pub unsafe fn clone3(args: &mut clone_args, size: size_t) -> c_long {
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// SAFETY: parameters are assumed to be valid
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unsafe { syscall(SYS_clone3, args, size) }
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}
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