use super::*;
impl JournalEffector {
pub fn save_fd_duplicate(
ctx: &mut FunctionEnvMut<'_, WasiEnv>,
original_fd: Fd,
copied_fd: Fd,
cloexec: bool,
) -> anyhow::Result<()> {
Self::save_event(
ctx,
JournalEntry::DuplicateFileDescriptorV2 {
original_fd,
copied_fd,
cloexec,
},
)
}
pub fn apply_fd_duplicate(
ctx: &mut FunctionEnvMut<'_, WasiEnv>,
original_fd: Fd,
copied_fd: Fd,
cloexec: bool,
) -> anyhow::Result<()> {
let ret_fd = crate::syscalls::fd_dup_internal(ctx, original_fd, 0, cloexec)
.map_err(|err| {
anyhow::format_err!(
"journal restore error: failed to duplicate file descriptor (original={}, copied={}) - {}",
original_fd,
copied_fd,
err
)
})?;
if ret_fd != copied_fd {
let ret = crate::syscalls::fd_renumber_internal(ctx, ret_fd, copied_fd);
if !matches!(ret, Ok(Errno::Success)) {
bail!(
"journal restore error: failed renumber file descriptor after duplicate (from={}, to={}) - {}",
ret_fd,
copied_fd,
ret.unwrap_or(Errno::Unknown)
);
}
}
Ok(())
}
}