Auto merge of #168 - NatalyaKovalova:ios-support, r=jdm

Add iOS support

ability to build ipc-channel for iOS platform have been added in this PR.
 For building could be used:
  `cargo build  --target aarch64-apple-ios`

@larsbergstrom , could you, please, make code review and accept changes?

Author: bors-servo

src/lib.rs

@@ -7,7 +7,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![cfg_attr(any(feature = "force-inprocess", target_os = "windows", target_os = "android"),
+#![cfg_attr(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios"),
 			feature(mpsc_select))]
 #![cfg_attr(all(feature = "unstable", test), feature(specialization))]
 
@@ -18,7 +18,7 @@ extern crate bincode;
 extern crate libc;
 extern crate rand;
 extern crate serde;
-#[cfg(any(feature = "force-inprocess", target_os = "windows", target_os = "android"))]
+#[cfg(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios"))]
 extern crate uuid;
 #[cfg(all(not(feature = "force-inprocess"), any(target_os = "linux",
                                                 target_os = "freebsd")))]

src/platform/mod.rs

@@ -43,9 +43,9 @@ mod os {
     pub use super::macos::*;
 }
 
-#[cfg(any(feature = "force-inprocess", target_os = "windows", target_os = "android"))]
+#[cfg(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios"))]
 mod inprocess;
-#[cfg(any(feature = "force-inprocess", target_os = "windows", target_os = "android"))]
+#[cfg(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios"))]
 mod os {
     pub use super::inprocess::*;
 }

src/platform/test.rs

@@ -15,9 +15,9 @@ use std::time::{Duration, Instant};
 use std::thread;
 
 use platform::{OsIpcSender, OsIpcOneShotServer};
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 use libc::{kill, SIGSTOP, SIGCONT};
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 use test::{fork, Wait};
 
 #[test]
@@ -396,7 +396,7 @@ fn receiver_set() {
 }
 
 #[test]
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 fn receiver_set_eintr() {
     let (server, name) = OsIpcOneShotServer::new().unwrap();
     let child_pid = unsafe {
@@ -644,7 +644,7 @@ fn server_connect_first() {
                (data, vec![], vec![]));
 }
 
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 #[test]
 fn cross_process() {
     let (server, name) = OsIpcOneShotServer::new().unwrap();
@@ -662,7 +662,7 @@ fn cross_process() {
                (data, vec![], vec![]));
 }
 
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 #[test]
 fn cross_process_sender_transfer() {
     let (server, name) = OsIpcOneShotServer::new().unwrap();

src/test.rs

@@ -8,7 +8,7 @@
 // except according to those terms.
 
 use ipc::{self, IpcReceiverSet, IpcSender, IpcSharedMemory};
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 use ipc::IpcReceiver;
 use router::ROUTER;
 use libc;
@@ -20,13 +20,13 @@ use std::sync::Arc;
 use std::sync::mpsc::{self, Sender};
 use std::thread;
 
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 use ipc::IpcOneShotServer;
 
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 use std::io::Error;
 
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 // I'm not actually sure invoking this is indeed unsafe -- but better safe than sorry...
 pub unsafe fn fork<F: FnOnce()>(child_func: F) -> libc::pid_t {
     match libc::fork() {
@@ -135,7 +135,7 @@ fn select() {
     }
 }
 
-#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android")))]
+#[cfg(not(any(feature = "force-inprocess", target_os = "windows", target_os = "android", target_os = "ios")))]
 #[test]
 fn cross_process_embedded_senders() {
     let person = ("Patrick Walton".to_owned(), 29);