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//! System bindings for the Teeos platform
//!
//! This module contains the facade (aka platform-specific) implementations of
//! OS level functionality for Teeos.
#![allow(unsafe_op_in_unsafe_fn)]
#![allow(unused_variables)]
#![allow(dead_code)]
pub use self::rand::hashmap_random_keys;
pub mod alloc;
#[path = "../unsupported/args.rs"]
pub mod args;
#[path = "../unix/cmath.rs"]
pub mod cmath;
#[path = "../unsupported/env.rs"]
pub mod env;
pub mod locks;
//pub mod fd;
#[path = "../unsupported/fs.rs"]
pub mod fs;
#[path = "../unsupported/io.rs"]
pub mod io;
#[path = "../unix/memchr.rs"]
pub mod memchr;
pub mod net;
#[path = "../unsupported/once.rs"]
pub mod once;
pub mod os;
#[path = "../unix/os_str.rs"]
pub mod os_str;
#[path = "../unix/path.rs"]
pub mod path;
#[path = "../unsupported/pipe.rs"]
pub mod pipe;
#[path = "../unsupported/process.rs"]
pub mod process;
mod rand;
pub mod stdio;
pub mod thread;
pub mod thread_local_dtor;
#[path = "../unix/thread_local_key.rs"]
pub mod thread_local_key;
#[path = "../unsupported/thread_parking.rs"]
pub mod thread_parking;
#[allow(non_upper_case_globals)]
#[path = "../unix/time.rs"]
pub mod time;
use crate::io::ErrorKind;
pub fn abort_internal() -> ! {
unsafe { libc::abort() }
}
// Trusted Applications are loaded as dynamic libraries on Teeos,
// so this should never be called.
pub fn init(argc: isize, argv: *const *const u8, sigpipe: u8) {}
// SAFETY: must be called only once during runtime cleanup.
// this is not guaranteed to run, for example when the program aborts.
pub unsafe fn cleanup() {
unimplemented!()
// We do NOT have stack overflow handler, because TEE OS will kill TA when it happens.
// So cleanup is commented
// stack_overflow::cleanup();
}
#[inline]
pub(crate) fn is_interrupted(errno: i32) -> bool {
errno == libc::EINTR
}
// Note: code below is 1:1 copied from unix/mod.rs
pub fn decode_error_kind(errno: i32) -> ErrorKind {
use ErrorKind::*;
match errno as libc::c_int {
libc::E2BIG => ArgumentListTooLong,
libc::EADDRINUSE => AddrInUse,
libc::EADDRNOTAVAIL => AddrNotAvailable,
libc::EBUSY => ResourceBusy,
libc::ECONNABORTED => ConnectionAborted,
libc::ECONNREFUSED => ConnectionRefused,
libc::ECONNRESET => ConnectionReset,
libc::EDEADLK => Deadlock,
libc::EDQUOT => FilesystemQuotaExceeded,
libc::EEXIST => AlreadyExists,
libc::EFBIG => FileTooLarge,
libc::EHOSTUNREACH => HostUnreachable,
libc::EINTR => Interrupted,
libc::EINVAL => InvalidInput,
libc::EISDIR => IsADirectory,
libc::ELOOP => FilesystemLoop,
libc::ENOENT => NotFound,
libc::ENOMEM => OutOfMemory,
libc::ENOSPC => StorageFull,
libc::ENOSYS => Unsupported,
libc::EMLINK => TooManyLinks,
libc::ENAMETOOLONG => InvalidFilename,
libc::ENETDOWN => NetworkDown,
libc::ENETUNREACH => NetworkUnreachable,
libc::ENOTCONN => NotConnected,
libc::ENOTDIR => NotADirectory,
libc::ENOTEMPTY => DirectoryNotEmpty,
libc::EPIPE => BrokenPipe,
libc::EROFS => ReadOnlyFilesystem,
libc::ESPIPE => NotSeekable,
libc::ESTALE => StaleNetworkFileHandle,
libc::ETIMEDOUT => TimedOut,
libc::ETXTBSY => ExecutableFileBusy,
libc::EXDEV => CrossesDevices,
libc::EACCES | libc::EPERM => PermissionDenied,
// These two constants can have the same value on some systems,
// but different values on others, so we can't use a match
// clause
x if x == libc::EAGAIN || x == libc::EWOULDBLOCK => WouldBlock,
_ => Uncategorized,
}
}
#[doc(hidden)]
pub trait IsMinusOne {
fn is_minus_one(&self) -> bool;
}
macro_rules! impl_is_minus_one {
($($t:ident)*) => ($(impl IsMinusOne for $t {
fn is_minus_one(&self) -> bool {
*self == -1
}
})*)
}
impl_is_minus_one! { i8 i16 i32 i64 isize }
pub fn cvt<T: IsMinusOne>(t: T) -> crate::io::Result<T> {
if t.is_minus_one() { Err(crate::io::Error::last_os_error()) } else { Ok(t) }
}
pub fn cvt_r<T, F>(mut f: F) -> crate::io::Result<T>
where
T: IsMinusOne,
F: FnMut() -> T,
{
loop {
match cvt(f()) {
Err(ref e) if e.kind() == ErrorKind::Interrupted => {}
other => return other,
}
}
}
pub fn cvt_nz(error: libc::c_int) -> crate::io::Result<()> {
if error == 0 { Ok(()) } else { Err(crate::io::Error::from_raw_os_error(error)) }
}
use crate::io as std_io;
pub fn unsupported<T>() -> std_io::Result<T> {
Err(unsupported_err())
}
pub fn unsupported_err() -> std_io::Error {
std_io::Error::new(std_io::ErrorKind::Unsupported, "operation not supported on this platform")
}
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