Function getInfo [src]

If buffer is too small to contain all of the info, this function returns Error.BufferTooSmall. You should call getInfoSize first to determine how big the buffer should be to safely call this function.

Prototype

 pub fn getInfo( self: *const File, comptime info: std.meta.Tag(Info), buffer: []align(@alignOf(@FieldType(Info, @tagName(info)))) u8, ) GetInfoError!*@FieldType(Info, @tagName(info))

Parameters

self: *const Fileinfo: std.meta.Tag(Info)buffer: []align(@alignOf(@FieldType(Info, @tagName(info)))) u8

Possible Errors

BufferTooSmall

DeviceError GetInfoSizeError

NoMedia GetInfoSizeError

Unexpected UnexpectedError

Unsupported GetInfoSizeError

VolumeCorrupted GetInfoSizeError

Source

  pub fn getInfo(
    self: *const File,
    comptime info: std.meta.Tag(Info),
    buffer: []align(@alignOf(@FieldType(Info, @tagName(info)))) u8,
) GetInfoError!*@FieldType(Info, @tagName(info)) {
    const InfoType = @FieldType(Info, @tagName(info));

    var len = buffer.len;
    switch (self._get_info(
        self,
        &InfoType.guid,
        &len,
        buffer.ptr,
    )) {
        .success => return @as(*InfoType, @ptrCast(buffer.ptr)),
        .buffer_too_small => return Error.BufferTooSmall,
        .unsupported => return Error.Unsupported,
        .no_media => return Error.NoMedia,
        .device_error => return Error.DeviceError,
        .volume_corrupted => return Error.VolumeCorrupted,
        else => |status| return uefi.unexpectedStatus(status),
    }
}  