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std: win: Don't use console APIs on UWP
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| #![unstable(issue = "0", feature = "windows_stdio")] | ||
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| use crate::io; | ||
| use crate::sys::c; | ||
| use crate::sys::handle::Handle; | ||
| use crate::mem::ManuallyDrop; | ||
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| pub struct Stdin { | ||
| } | ||
| pub struct Stdout; | ||
| pub struct Stderr; | ||
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| const MAX_BUFFER_SIZE: usize = 8192; | ||
| pub const STDIN_BUF_SIZE: usize = MAX_BUFFER_SIZE / 2 * 3; | ||
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| pub fn get_handle(handle_id: c::DWORD) -> io::Result<c::HANDLE> { | ||
| let handle = unsafe { c::GetStdHandle(handle_id) }; | ||
| if handle == c::INVALID_HANDLE_VALUE { | ||
| Err(io::Error::last_os_error()) | ||
| } else if handle.is_null() { | ||
| Err(io::Error::from_raw_os_error(c::ERROR_INVALID_HANDLE as i32)) | ||
| } else { | ||
| Ok(handle) | ||
| } | ||
| } | ||
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| fn write(handle_id: c::DWORD, data: &[u8]) -> io::Result<usize> { | ||
| let handle = get_handle(handle_id)?; | ||
| let handle = Handle::new(handle); | ||
| ManuallyDrop::new(handle).write(data) | ||
| } | ||
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| impl Stdin { | ||
| pub fn new() -> io::Result<Stdin> { | ||
| Ok(Stdin { }) | ||
| } | ||
| } | ||
|
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| impl io::Read for Stdin { | ||
| fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> { | ||
| let handle = get_handle(c::STD_INPUT_HANDLE)?; | ||
| let handle = Handle::new(handle); | ||
| ManuallyDrop::new(handle).read(buf) | ||
| } | ||
| } | ||
|
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| impl Stdout { | ||
| pub fn new() -> io::Result<Stdout> { | ||
| Ok(Stdout) | ||
| } | ||
| } | ||
|
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| impl io::Write for Stdout { | ||
| fn write(&mut self, buf: &[u8]) -> io::Result<usize> { | ||
| write(c::STD_OUTPUT_HANDLE, buf) | ||
| } | ||
|
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| fn flush(&mut self) -> io::Result<()> { | ||
| Ok(()) | ||
| } | ||
| } | ||
|
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| impl Stderr { | ||
| pub fn new() -> io::Result<Stderr> { | ||
| Ok(Stderr) | ||
| } | ||
| } | ||
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| impl io::Write for Stderr { | ||
| fn write(&mut self, buf: &[u8]) -> io::Result<usize> { | ||
| write(c::STD_ERROR_HANDLE, buf) | ||
| } | ||
|
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| fn flush(&mut self) -> io::Result<()> { | ||
| Ok(()) | ||
| } | ||
| } | ||
|
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| pub fn is_ebadf(err: &io::Error) -> bool { | ||
| err.raw_os_error() == Some(c::ERROR_INVALID_HANDLE as i32) | ||
| } | ||
|
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| pub fn panic_output() -> Option<impl io::Write> { | ||
| Stderr::new().ok() | ||
| } |