sctpx 0.4.0

A simple and friendly SCTP wrapper.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72

//!
//! # SCTP client
//!

#![warn(missing_docs, unused_import_braces, unused_extern_crates)]

use nix::{
    sys::socket::{
        recvfrom, sendto, socket, AddressFamily, MsgFlags, SockFlag, SockType,
        SockaddrStorage,
    },
    unistd::close,
};
use ruc::*;
use std::{
    net::SocketAddr,
    os::{fd::AsRawFd, unix::io::OwnedFd},
};

/// SCTP handler
#[derive(Debug)]
pub struct Hdr {
    fd: OwnedFd,
}

impl Hdr {
    /// create a new handler
    #[inline(always)]
    pub fn new() -> Result<Hdr> {
        socket(
            AddressFamily::Inet,
            SockType::SeqPacket,
            SockFlag::empty(),
            None,
        )
        .c(d!())
        .map(|fd| Hdr { fd })
    }

    /// sendmsg to server
    #[inline(always)]
    pub fn sendto_straddr(&self, data: &[u8], server_addr: &str) -> Result<usize> {
        server_addr
            .parse::<SocketAddr>()
            .c(d!())
            .and_then(|addr| self.sendto(data, addr).c(d!()))
    }

    /// sendmsg to server
    #[inline(always)]
    pub fn sendto(&self, data: &[u8], server_addr: SocketAddr) -> Result<usize> {
        sendto(
            self.fd.as_raw_fd(),
            data,
            &SockaddrStorage::from(server_addr),
            MsgFlags::empty(),
        )
        .c(d!())
    }

    /// recvmsg from server
    #[inline(always)]
    pub fn recvfrom(&self, data: &mut [u8]) -> Result<(usize, Option<SockaddrStorage>)> {
        recvfrom(self.fd.as_raw_fd(), data).c(d!())
    }
}

impl Drop for Hdr {
    fn drop(&mut self) {
        ruc::info_omit!(close(self.fd.as_raw_fd()));
    }
}