| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License.. |
| |
| use crate::io::ErrorKind; |
| use sgx_libc as libc; |
| use sgx_trts::trts; |
| |
| pub use self::rand::hashmap_random_keys; |
| |
| #[cfg(feature = "backtrace")] |
| pub mod backtrace; |
| pub mod cmath; |
| pub mod condvar; |
| pub mod env; |
| pub mod fd; |
| pub mod fs; |
| pub mod io; |
| pub mod memchr; |
| pub mod mutex; |
| #[cfg(feature = "net")] |
| pub mod net; |
| pub mod os; |
| pub mod os_str; |
| pub mod path; |
| #[cfg(feature = "pipe")] |
| pub mod pipe; |
| pub mod rand; |
| pub mod rwlock; |
| pub mod sgxfs; |
| #[cfg(feature = "stdio")] |
| pub mod stdio; |
| #[cfg(feature = "thread")] |
| pub mod thread; |
| #[cfg(feature = "thread")] |
| pub mod thread_local_dtor; |
| #[cfg(feature = "thread")] |
| pub mod thread_local_key; |
| pub mod time; |
| |
| 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 => FilenameTooLong, |
| 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)) } |
| } |
| |
| pub fn abort_internal() -> ! { |
| trts::rsgx_abort() |
| } |
| |
| pub mod unsupported { |
| use crate::io; |
| |
| pub fn unsupported<T>() -> io::Result<T> { |
| Err(unsupported_err()) |
| } |
| |
| pub fn unsupported_err() -> io::Error { |
| io::Error::new_const( |
| io::ErrorKind::Unsupported, |
| &"operation not supported on this platform", |
| ) |
| } |
| } |