xcon: move wire core into workspace crate

xcon/src/lib.rs

@@ -0,0 +1,95 @@
+pub use {
+    formatter::Formatter,
+    parser::Parser,
+    wire_type::{Message, Request, SendEvent, XEvent},
+};
+use {
+    bstr::BString,
+    jay_bufio::BufIoError,
+    jay_io_uring::IoUringError,
+    jay_utils::oserror::OsError,
+    std::rc::Rc,
+    thiserror::Error,
+};
+
+pub mod consts;
+mod formatter;
+mod parser;
+mod wire_type;
+pub mod xauthority;
+
+#[derive(Debug, Error)]
+pub enum XconError {
+    #[error("Unexpected EOF")]
+    UnexpectedEof,
+    #[error("Buffer slice is not properly aligned")]
+    UnalignedSlice,
+    #[error("Neither XAUTHORITY nor HOME is set")]
+    HomeNotSet,
+    #[error("Could not read Xauthority file")]
+    ReadXAuthority(#[source] std::io::Error),
+    #[error("Display field in Xauthority could not be parsed")]
+    InvalidAuthorityDisplay,
+    #[error("The DISPLAY is not set")]
+    DisplayNotSet,
+    #[error("DISPLAY contains an invalid value")]
+    InvalidDisplayFormat,
+    #[error("Could not create a unix socket")]
+    CreateSocket(#[source] OsError),
+    #[error("Could not connect to Xserver")]
+    ConnectSocket(#[source] IoUringError),
+    #[error("Could not retrive the hostname")]
+    Hostname(#[source] OsError),
+    #[error("Server did not send enough fds")]
+    NotEnoughFds,
+    #[error("Server rejected our connection attempt: {0}")]
+    Connect(BString),
+    #[error("Server requires additional authentication: {0}")]
+    Authenticate(BString),
+    #[error(transparent)]
+    BufIoError(#[from] BufIoError),
+    #[error("The server did not send a reply to a request")]
+    MissingReply,
+    #[error("The server did not send fds with a reply")]
+    MissingFds,
+    #[error("The server sent a message with an excessive size")]
+    ExcessiveMessageSize,
+    #[error(transparent)]
+    XconError(Rc<XconError>),
+    #[error("The server does not support the `{0}` extension")]
+    ExtensionUnavailable(&'static str),
+    #[error("The server returned error {0}")]
+    CoreError(u8),
+    #[error("The extension `{0}` returned error {1}")]
+    ExtensionError(&'static str, u8),
+    #[error("The connection to the server has already been closed")]
+    Dead,
+    #[error("Could not query the `{0}` extension")]
+    QueryExtension(BString, #[source] Box<XconError>),
+    #[error("All available xids have been used")]
+    XidExhausted,
+    #[error("Enum contains an unknown variant")]
+    UnknownEnumVariant,
+    #[error("Could not query the render pict formats")]
+    QueryPictFormats(#[source] Box<XconError>),
+    #[error("The server does not support the picture format for cursors")]
+    CursorFormatNotSupported,
+    #[error("Could not create a pixmap")]
+    CreatePixmap(#[source] Box<XconError>),
+    #[error("Could not create a graphics context")]
+    CreateGc(#[source] Box<XconError>),
+    #[error("Could not upload an image")]
+    PutImage(#[source] Box<XconError>),
+    #[error("Could not create a picture")]
+    CreatePicture(#[source] Box<XconError>),
+    #[error("Could not create a cursor")]
+    CreateCursor(#[source] Box<XconError>),
+    #[error("Property has an invalid type")]
+    InvalidPropertyType,
+    #[error("Property has an invalid format. Expected: {0}; Actual: {1}")]
+    InvalidPropertyFormat(u8, u8),
+    #[error("Length of the property data is not a multiple of its format")]
+    IrregularPropertyLength,
+    #[error("The property is not set")]
+    PropertyUnavailable,
+}