nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2024-11-27 01:04:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove SOCK_CLOEXEC dummy variable on platforms that don't use it.

Browse Source
This commit is contained in:
Markus Reiter 2019-12-20 04:27:28 +01:00
parent 19b3813b5e
commit b82671112c
2 changed files with 9 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
src/libstd/sys/unix/net.rs
View File

@ -18,16 +18,6 @@ pub extern crate libc as netc;
pub type wrlen_t = size_t;
// See below for the usage of SOCK_CLOEXEC, but this constant is only defined on
// Linux currently (e.g., support doesn't exist on other platforms). In order to
// get name resolution to work and things to compile we just define a dummy
// SOCK_CLOEXEC here for other platforms. Note that the dummy constant isn't
// actually ever used (the blocks below are wrapped in `if cfg!` as well.
#[cfg(target_os = "linux")]
use libc::SOCK_CLOEXEC;
#[cfg(not(target_os = "linux"))]
const SOCK_CLOEXEC: c_int = 0;
pub struct Socket(FileDesc);
pub fn init() {}
@ -69,8 +59,9 @@ impl Socket {
// this option, however, was added in 2.6.27, and we still support
// 2.6.18 as a kernel, so if the returned error is EINVAL we
// fallthrough to the fallback.
if cfg!(target_os = "linux") {
match cvt(libc::socket(fam, ty | SOCK_CLOEXEC, 0)) {
#[cfg(target_os = "linux")]
{
match cvt(libc::socket(fam, ty | libc::SOCK_CLOEXEC, 0)) {
Ok(fd) => return Ok(Socket(FileDesc::new(fd))),
Err(ref e) if e.raw_os_error() == Some(libc::EINVAL) => {}
Err(e) => return Err(e),
@ -96,8 +87,9 @@ impl Socket {
let mut fds = [0, 0];
// Like above, see if we can set cloexec atomically
if cfg!(target_os = "linux") {
match cvt(libc::socketpair(fam, ty | SOCK_CLOEXEC, 0, fds.as_mut_ptr())) {
#[cfg(target_os = "linux")]
{
match cvt(libc::socketpair(fam, ty | libc::SOCK_CLOEXEC, 0, fds.as_mut_ptr())) {
Ok(_) => {
return Ok((Socket(FileDesc::new(fds[0])), Socket(FileDesc::new(fds[1]))));
}
@ -187,7 +179,8 @@ impl Socket {
// atomically set the CLOEXEC flag is to use the `accept4` syscall on
// Linux. This was added in 2.6.28, however, and because we support
// 2.6.18 we must detect this support dynamically.
if cfg!(target_os = "linux") {
#[cfg(target_os = "linux")]
{
syscall! {
fn accept4(
fd: c_int,
@ -196,7 +189,7 @@ impl Socket {
flags: c_int
) -> c_int
}
let res = cvt_r(|| unsafe { accept4(self.0.raw(), storage, len, SOCK_CLOEXEC) });
let res = cvt_r(|| unsafe { accept4(self.0.raw(), storage, len, libc::SOCK_CLOEXEC) });
match res {
Ok(fd) => return Ok(Socket(FileDesc::new(fd))),
Err(ref e) if e.raw_os_error() == Some(libc::ENOSYS) => {}

2
src/libstd/sys/vxworks/net.rs
View File

@ -18,8 +18,6 @@ pub extern crate libc as netc;
pub type wrlen_t = size_t;
const SOCK_CLOEXEC: c_int = 0;
pub struct Socket(FileDesc);
pub fn init() {}