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Update Windows ReadFile and WriteFile to recognise Access Denied error when a read or write is attempted on a disconnected virtual com port

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psbob 2025-04-27 15:42:15 +01:00 • committed by GitHub
parent b16c094926
commit d92649da80
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1 changed files with 8 additions and 0 deletions
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8
lib/std/os/windows.zig
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@ -602,6 +602,9 @@ pub const ReadFileError = error{
OperationAborted,
/// Unable to read file due to lock.
LockViolation,
/// Known to be possible when:
/// - Unable to read from disconnected virtual com port (Windows)
AccessDenied,
Unexpected,
};
@ -634,6 +637,7 @@ pub fn ReadFile(in_hFile: HANDLE, buffer: []u8, offset: ?u64) ReadFileError!usiz
.HANDLE_EOF => return 0,
.NETNAME_DELETED => return error.ConnectionResetByPeer,
.LOCK_VIOLATION => return error.LockViolation,
.ACCESS_DENIED => return error.AccessDenied,
else => |err| return unexpectedError(err),
}
}
@ -651,6 +655,9 @@ pub const WriteFileError = error{
LockViolation,
/// The specified network name is no longer available.
ConnectionResetByPeer,
/// Known to be possible when:
/// - Unable to write to disconnected virtual com port (Windows)
AccessDenied,
Unexpected,
};
@ -687,6 +694,7 @@ pub fn WriteFile(
.INVALID_HANDLE => return error.NotOpenForWriting,
.LOCK_VIOLATION => return error.LockViolation,
.NETNAME_DELETED => return error.ConnectionResetByPeer,
.ACCESS_DENIED => return error.AccessDenied,
else => |err| return unexpectedError(err),
}
}