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use std::fmt;
use std::kinds::marker;
use std::str;
use libc;
use {raw, Session};
/// Representation of an error that can occur within libssh2
pub struct Error {
code: libc::c_int,
msg: &'static str,
marker: marker::NoCopy,
}
impl Error {
/// Generate the last error that occurred for a `Session`.
///
/// Returns `None` if there was no last error.
pub fn last_error(sess: &Session) -> Option<Error> {
unsafe {
let mut msg = 0 as *mut _;
let rc = raw::libssh2_session_last_error(sess.raw(), &mut msg,
0 as *mut _, 0);
if rc == 0 { return None }
Some(Error::new(rc, str::raw::c_str_to_static_slice(msg as *const _)))
}
}
/// Create a new error for the given code and message
pub fn new(code: libc::c_int, msg: &'static str) -> Error {
Error {
code: code,
msg: msg,
marker: marker::NoCopy,
}
}
/// Generate an error that represents EOF
pub fn eof() -> Error {
Error::new(raw::LIBSSH2_ERROR_CHANNEL_EOF_SENT, "end of file")
}
/// Get the message corresponding to this error
pub fn message(&self) -> &str { self.msg }
}
impl fmt::Show for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "[{}] {}", self.code, self.msg)
}
}
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