mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-22 23:12:24 +00:00
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
/*
|
|
* \brief Connection to TRACE service
|
|
* \author Norman Feske
|
|
* \date 2013-08-11
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2013-2017 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__TRACE_SESSION__CONNECTION_H_
|
|
#define _INCLUDE__TRACE_SESSION__CONNECTION_H_
|
|
|
|
#include <util/retry.h>
|
|
#include <trace_session/client.h>
|
|
#include <base/connection.h>
|
|
|
|
namespace Genode { namespace Trace { struct Connection; } }
|
|
|
|
|
|
struct Genode::Trace::Connection : Genode::Connection<Genode::Trace::Session>,
|
|
Genode::Trace::Session_client
|
|
{
|
|
template <typename FUNC>
|
|
auto _retry(FUNC func) -> decltype(func())
|
|
{
|
|
return retry_with_upgrade(Ram_quota{8*1024}, Cap_quota{2}, func);
|
|
}
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* \param ram_quota RAM donated for tracing purposes
|
|
* \param arg_buffer_size session argument-buffer size
|
|
* \param parent_levels number of parent levels to trace
|
|
*/
|
|
Connection(Env &env, size_t ram_quota, size_t arg_buffer_size, unsigned parent_levels)
|
|
:
|
|
Genode::Connection<Session>(env,
|
|
session(env.parent(), "ram_quota=%lu, arg_buffer_size=%lu, parent_levels=%u",
|
|
ram_quota + 10*1024, arg_buffer_size, parent_levels)),
|
|
Session_client(env.rm(), cap())
|
|
{ }
|
|
|
|
Policy_id alloc_policy(size_t size) override
|
|
{
|
|
return _retry([&] () {
|
|
return Session_client::alloc_policy(size); });
|
|
}
|
|
|
|
void trace(Subject_id s, Policy_id p, size_t buffer_size) override
|
|
{
|
|
_retry([&] () { Session_client::trace(s, p, buffer_size); });
|
|
}
|
|
|
|
size_t subjects(Subject_id *dst, size_t dst_len) override
|
|
{
|
|
return _retry([&] () {
|
|
return Session_client::subjects(dst, dst_len); });
|
|
}
|
|
|
|
template <typename FN>
|
|
For_each_subject_info_result for_each_subject_info(FN const &fn)
|
|
{
|
|
return _retry([&] () {
|
|
return Session_client::for_each_subject_info(fn); });
|
|
}
|
|
};
|
|
|
|
#endif /* _INCLUDE__TRACE_SESSION__CONNECTION_H_ */
|