Atmosphere-libs/libstratosphere/source/pgl/srv/pgl_srv_shell_event_observer.cpp

87 lines
3.1 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
#include "pgl_srv_shell_event_observer.hpp"
#include "pgl_srv_shell.hpp"
namespace ams::pgl::srv {
ShellEventObserverImpl::ShellEventObserverImpl() : m_message_queue(m_queue_buffer, QueueCapacity), m_event(os::EventClearMode_AutoClear, true) {
m_heap_handle = lmem::CreateUnitHeap(m_event_info_data, sizeof(m_event_info_data), sizeof(m_event_info_data[0]), lmem::CreateOption_ThreadSafe, 8, GetPointer(m_heap_head));
RegisterShellEventObserver(util::ConstructAt(m_holder, this));
}
ShellEventObserverImpl::~ShellEventObserverImpl() {
UnregisterShellEventObserver(GetPointer(m_holder));
util::DestroyAt(m_holder);
}
Result ShellEventObserverImpl::PopEventInfo(pm::ProcessEventInfo *out) {
/* Receive an info from the queue. */
uintptr_t info_address;
R_UNLESS(m_message_queue.TryReceive(std::addressof(info_address)), pgl::ResultNotAvailable());
pm::ProcessEventInfo *info = reinterpret_cast<pm::ProcessEventInfo *>(info_address);
/* Set the output. */
*out = *info;
/* Free the received info. */
lmem::FreeToUnitHeap(m_heap_handle, info);
R_SUCCEED();
}
void ShellEventObserverImpl::Notify(const pm::ProcessEventInfo &info) {
/* Allocate a new info. */
auto allocated = reinterpret_cast<pm::ProcessEventInfo *>(lmem::AllocateFromUnitHeap(m_heap_handle));
if (!allocated) {
return;
}
/* Set it to the notification. */
*allocated = info;
/* Try to send it. */
if (!m_message_queue.TrySend(reinterpret_cast<uintptr_t>(allocated))) {
lmem::FreeToUnitHeap(m_heap_handle, allocated);
return;
}
/* Notify that we have a new info available. */
m_event.Signal();
}
Result ShellEventObserverCmif::GetProcessEventHandle(ams::sf::OutCopyHandle out) {
out.SetValue(this->GetEvent().GetReadableHandle(), false);
R_SUCCEED();
}
Result ShellEventObserverCmif::GetProcessEventInfo(ams::sf::Out<pm::ProcessEventInfo> out) {
R_RETURN(this->PopEventInfo(out.GetPointer()));
}
Result ShellEventObserverTipc::GetProcessEventHandle(ams::tipc::OutCopyHandle out) {
out.SetValue(this->GetEvent().GetReadableHandle());
R_SUCCEED();
}
Result ShellEventObserverTipc::GetProcessEventInfo(ams::tipc::Out<pm::ProcessEventInfo> out) {
R_RETURN(this->PopEventInfo(out.GetPointer()));
}
}