mirror of
https://github.com/genodelabs/genode.git
synced 2025-05-04 01:33:02 +00:00
aa66b5d62f
This patch adjusts the implementation of the base library and core such that the code no longer relies on deprecated APIs except for very few cases, mainly to keep those deprecated APIs in tact for now. The most prominent changes are: - Removing the use of base/printf.h - Removing of the log backend for printf. The 'Console' with the format-string parser is still there along with 'snprintf.h' because the latter is still used at a few places, most prominently the 'Connection' classes. - Removing the notion of a RAM session, which does not exist in Genode anymore. Still the types were preserved (by typedefs to PD session) to keep up compatibility. But this transition should come to an end now. - Slight rennovation of core's tracing service, e.g., the use of an Attached_dataspace as the Argument_buffer. - Reducing the reliance on global accessors like deprecated_env() or core_env(). Still there is a longish way to go to eliminate all such calls. A useful pattern (or at least a stop-gap solution) is to pass the 'Env' to the individual compilation units via init functions. - Avoiding the use of the old 'Child_policy::resolve_session_request' interface that returned a 'Service' instead of a 'Route'. Issue #1987
83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
/*
|
|
* \brief Fiasco.OC-specific signal-source client interface
|
|
* \author Norman Feske
|
|
* \author Stefan Kalkowski
|
|
* \date 2010-02-03
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2011-2017 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.
|
|
*/
|
|
|
|
/* Genode includes */
|
|
#include <signal_source/client.h>
|
|
#include <base/thread.h>
|
|
#include <base/env.h>
|
|
#include <base/log.h>
|
|
#include <deprecated/env.h>
|
|
|
|
/* base-internal includes */
|
|
#include <base/internal/capability_data.h>
|
|
#include <base/internal/native_thread.h>
|
|
|
|
/* Fiasco includes */
|
|
#include <foc_native_cpu/client.h>
|
|
|
|
namespace Fiasco {
|
|
#include <l4/sys/irq.h>
|
|
}
|
|
|
|
using namespace Genode;
|
|
|
|
|
|
Signal_source_client::Signal_source_client(Capability<Signal_source> cap)
|
|
:
|
|
Rpc_client<Foc_signal_source>(static_cap_cast<Foc_signal_source>(cap)),
|
|
|
|
/* request mapping of semaphore capability selector */
|
|
_sem(call<Rpc_request_semaphore>())
|
|
{
|
|
using namespace Fiasco;
|
|
|
|
Foc_native_cpu_client cpu_client(env_deprecated()->cpu_session()->native_cpu());
|
|
Native_capability thread_cap = cpu_client.native_cap(Thread::myself()->cap());
|
|
l4_msgtag_t tag = l4_rcv_ep_bind_thread(_sem.data()->kcap(), thread_cap.data()->kcap(), 0);
|
|
if (l4_error(tag))
|
|
Genode::raw("l4_rcv_ep_bind_thread failed with ", l4_error(tag));
|
|
}
|
|
|
|
|
|
Signal_source_client::~Signal_source_client()
|
|
{
|
|
Fiasco::l4_irq_detach(_sem.data()->kcap());
|
|
}
|
|
|
|
|
|
__attribute__((optimize("-fno-omit-frame-pointer")))
|
|
__attribute__((noinline))
|
|
Signal_source_client::Signal Signal_source_client::wait_for_signal()
|
|
{
|
|
using namespace Fiasco;
|
|
|
|
Signal signal;
|
|
do {
|
|
|
|
/* block on semaphore until signal context was submitted */
|
|
l4_irq_receive(_sem.data()->kcap(), L4_IPC_NEVER);
|
|
|
|
/*
|
|
* The following request will return immediately and either
|
|
* return a valid or a null signal. The latter may happen in
|
|
* the case a submitted signal context was destroyed (by the
|
|
* submitter) before we have a chance to raise our request.
|
|
*/
|
|
signal = call<Rpc_wait_for_signal>();
|
|
|
|
} while (!signal.imprint());
|
|
|
|
return signal;
|
|
}
|