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#![allow(missing_docs, nonstandard_style)]
use crate::io::ErrorKind;
pub use self::rand::hashmap_random_keys;
pub use libc::strlen;
#[cfg(not(target_os = "espidf"))]
#[macro_use]
pub mod weak;
pub mod alloc;
pub mod android;
pub mod args;
#[path = "../unix/cmath.rs"]
pub mod cmath;
pub mod condvar;
pub mod env;
pub mod fd;
pub mod fs;
pub mod futex;
pub mod io;
#[cfg(any(target_os = "linux", target_os = "android"))]
pub mod kernel_copy;
#[cfg(target_os = "l4re")]
mod l4re;
pub mod memchr;
pub mod mutex;
#[cfg(not(target_os = "l4re"))]
pub mod net;
#[cfg(target_os = "l4re")]
pub use self::l4re::net;
pub mod os;
pub mod os_str;
pub mod path;
pub mod pipe;
pub mod process;
pub mod rand;
pub mod rwlock;
pub mod stack_overflow;
pub mod stdio;
pub mod thread;
pub mod thread_local_dtor;
pub mod thread_local_key;
pub mod time;
#[cfg(target_os = "espidf")]
pub fn init(argc: isize, argv: *const *const u8) {}
#[cfg(not(target_os = "espidf"))]
pub unsafe fn init(argc: isize, argv: *const *const u8) {
sanitize_standard_fds();
reset_sigpipe();
stack_overflow::init();
args::init(argc, argv);
unsafe fn sanitize_standard_fds() {
#[cfg(not(miri))]
cfg_if::cfg_if! {
if #[cfg(not(any(
target_os = "emscripten",
target_os = "fuchsia",
target_os = "vxworks",
target_os = "macos",
target_os = "ios",
target_os = "redox",
)))] {
use crate::sys::os::errno;
let pfds: &mut [_] = &mut [
libc::pollfd { fd: 0, events: 0, revents: 0 },
libc::pollfd { fd: 1, events: 0, revents: 0 },
libc::pollfd { fd: 2, events: 0, revents: 0 },
];
while libc::poll(pfds.as_mut_ptr(), 3, 0) == -1 {
if errno() == libc::EINTR {
continue;
}
libc::abort();
}
for pfd in pfds {
if pfd.revents & libc::POLLNVAL == 0 {
continue;
}
if libc::open("/dev/null\0".as_ptr().cast(), libc::O_RDWR, 0) == -1 {
libc::abort();
}
}
} else if #[cfg(any(target_os = "macos", target_os = "ios", target_os = "redox"))] {
use crate::sys::os::errno;
for fd in 0..3 {
if libc::fcntl(fd, libc::F_GETFD) == -1 && errno() == libc::EBADF {
if libc::open("/dev/null\0".as_ptr().cast(), libc::O_RDWR, 0) == -1 {
libc::abort();
}
}
}
}
}
}
unsafe fn reset_sigpipe() {
#[cfg(not(any(target_os = "emscripten", target_os = "fuchsia")))]
rtassert!(signal(libc::SIGPIPE, libc::SIG_IGN) != libc::SIG_ERR);
}
}
pub unsafe fn cleanup() {
stack_overflow::cleanup();
}
#[cfg(target_os = "android")]
pub use crate::sys::android::signal;
#[cfg(not(target_os = "android"))]
pub use libc::signal;
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,
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() -> ! {
unsafe { libc::abort() }
}
cfg_if::cfg_if! {
if #[cfg(target_os = "android")] {
#[link(name = "dl")]
#[link(name = "log")]
extern "C" {}
} else if #[cfg(target_os = "freebsd")] {
#[link(name = "execinfo")]
#[link(name = "pthread")]
extern "C" {}
} else if #[cfg(target_os = "netbsd")] {
#[link(name = "pthread")]
#[link(name = "rt")]
extern "C" {}
} else if #[cfg(any(target_os = "dragonfly", target_os = "openbsd"))] {
#[link(name = "pthread")]
extern "C" {}
} else if #[cfg(target_os = "solaris")] {
#[link(name = "socket")]
#[link(name = "posix4")]
#[link(name = "pthread")]
#[link(name = "resolv")]
extern "C" {}
} else if #[cfg(target_os = "illumos")] {
#[link(name = "socket")]
#[link(name = "posix4")]
#[link(name = "pthread")]
#[link(name = "resolv")]
#[link(name = "nsl")]
#[link(name = "umem")]
extern "C" {}
} else if #[cfg(target_os = "macos")] {
#[link(name = "System")]
#[link(name = "resolv")]
extern "C" {}
} else if #[cfg(target_os = "ios")] {
#[link(name = "System")]
#[link(name = "objc")]
#[link(name = "Security", kind = "framework")]
#[link(name = "Foundation", kind = "framework")]
#[link(name = "resolv")]
extern "C" {}
} else if #[cfg(target_os = "fuchsia")] {
#[link(name = "zircon")]
#[link(name = "fdio")]
extern "C" {}
} else if #[cfg(all(target_os = "linux", target_env = "uclibc"))] {
#[link(name = "dl")]
extern "C" {}
}
}
#[cfg(target_os = "espidf")]
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",
)
}
}