mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-23 15:32:25 +00:00
4a3fc21ada
File_system clients may now watch files and directories for changes by opening a 'Watch_handle' rather than submitting a 'CONTENT_CHANGED' packet to the server. When a change happens at a node with an open Watch_handle a CONTENT_CHANGED packet will be sent from the server to the client. This serializes registration with other handle operations and separates I/O handle state from notification handle state. Test at run/fs_rom_update. Ref #1934
62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
/*
|
|
* \brief Server-side file-system session interface
|
|
* \author Norman Feske
|
|
* \date 2012-04-05
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2012-2017 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#ifndef _INCLUDE__FILE_SYSTEM_SESSION__SERVER_H_
|
|
#define _INCLUDE__FILE_SYSTEM_SESSION__SERVER_H_
|
|
|
|
#include <file_system_session/file_system_session.h>
|
|
#include <packet_stream_tx/rpc_object.h>
|
|
#include <base/rpc_server.h>
|
|
|
|
namespace File_system { class Session_rpc_object; }
|
|
|
|
class File_system::Session_rpc_object : public Genode::Rpc_object<Session, Session_rpc_object>
|
|
{
|
|
protected:
|
|
|
|
Packet_stream_tx::Rpc_object<Tx> _tx;
|
|
|
|
public:
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* \param tx_ds dataspace used as communication buffer
|
|
* for the tx packet stream
|
|
* \param ep entry point used for packet-stream channel
|
|
*/
|
|
Session_rpc_object(Genode::Dataspace_capability tx_ds,
|
|
Genode::Region_map &rm,
|
|
Genode::Rpc_entrypoint &ep)
|
|
: _tx(tx_ds, rm, ep) { }
|
|
|
|
/**
|
|
* Return capability to packet-stream channel
|
|
*
|
|
* This method is called by the client via an RPC call at session
|
|
* construction time.
|
|
*/
|
|
Genode::Capability<Tx> _tx_cap() { return _tx.cap(); }
|
|
|
|
Tx::Sink *tx_sink() { return _tx.sink(); }
|
|
|
|
/**
|
|
* Default stub implementation
|
|
*/
|
|
Watch_handle watch(Path const &) override {
|
|
throw Unavailable(); }
|
|
|
|
};
|
|
|
|
#endif /* _INCLUDE__FILE_SYSTEM_SESSION__SERVER_H_ */
|