wasmer_wasix/journal/effector/syscalls/
sock_send.rs

1use wasmer_wasix_types::wasi::SiFlags;
2
3use crate::syscalls::sock_send_internal;
4
5use super::*;
6
7impl JournalEffector {
8    pub fn save_sock_send<M: MemorySize>(
9        ctx: &FunctionEnvMut<'_, WasiEnv>,
10        fd: Fd,
11        sent: usize,
12        iovs: WasmPtr<__wasi_ciovec_t<M>, M>,
13        iovs_len: M::Offset,
14        si_flags: SiFlags,
15    ) -> anyhow::Result<()> {
16        let env = ctx.data();
17        let memory = unsafe { env.memory_view(&ctx) };
18        let iovs_arr = iovs.slice(&memory, iovs_len)?;
19
20        let iovs_arr = iovs_arr.access().map_err(mem_error_to_wasi)?;
21        let mut remaining: M::Offset = TryFrom::<usize>::try_from(sent).unwrap_or_default();
22        for iovs in iovs_arr.iter() {
23            let sub = iovs.buf_len.min(remaining);
24            if sub == M::ZERO {
25                continue;
26            }
27            remaining -= sub;
28
29            let buf = WasmPtr::<u8, M>::new(iovs.buf)
30                .slice(&memory, sub)
31                .map_err(mem_error_to_wasi)?
32                .access()
33                .map_err(mem_error_to_wasi)?;
34            ctx.data()
35                .active_journal()?
36                .write(JournalEntry::SocketSendV1 {
37                    fd,
38                    data: Cow::Borrowed(buf.as_ref()),
39                    is_64bit: M::is_64bit(),
40                    flags: si_flags,
41                })
42                .map_err(map_snapshot_err)?;
43        }
44        Ok(())
45    }
46
47    pub fn apply_sock_send<M: MemorySize>(
48        ctx: &FunctionEnvMut<'_, WasiEnv>,
49        sock: Fd,
50        si_data: Cow<'_, [u8]>,
51        si_flags: SiFlags,
52    ) -> anyhow::Result<()> {
53        let data_len = si_data.len();
54        sock_send_internal(ctx, sock, FdWriteSource::<'_, M>::Buffer(si_data), si_flags)?.map_err(
55            |err| {
56                anyhow::format_err!(
57                    "journal restore error: failed to send on socket (fd={sock}, data.len={data_len}) - {err}")
58            },
59        )?;
60        Ok(())
61    }
62}
wasmer_wasix/journal/effector/syscalls/sock_send.rs

wasmer_wasix/journal/effector/syscalls/
sock_send.rs
