ladybird/Kernel/ProcessGroup.cpp
Daniel Bertalan f820917a76 Everywhere: Use nothrow new with adopt_{ref,own}_if_nonnull
This commit converts naked `new`s to `AK::try_make` and `AK::try_create`
wherever possible. If the called constructor is private, this can not be
done, so we instead now use the standard-defined and compiler-agnostic
`new (nothrow)`.
2021-06-24 17:35:49 +04:30

52 lines
1.1 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "ProcessGroup.h"
namespace Kernel {
RecursiveSpinLock g_process_groups_lock;
ProcessGroup::List* g_process_groups;
ProcessGroup::~ProcessGroup()
{
ScopedSpinLock lock(g_process_groups_lock);
g_process_groups->remove(*this);
}
RefPtr<ProcessGroup> ProcessGroup::create(ProcessGroupID pgid)
{
auto process_group = adopt_ref_if_nonnull(new (nothrow) ProcessGroup(pgid));
if (process_group) {
ScopedSpinLock lock(g_process_groups_lock);
g_process_groups->prepend(*process_group);
}
return process_group;
}
RefPtr<ProcessGroup> ProcessGroup::find_or_create(ProcessGroupID pgid)
{
ScopedSpinLock lock(g_process_groups_lock);
if (auto existing = from_pgid(pgid))
return existing.release_nonnull();
return create(pgid);
}
RefPtr<ProcessGroup> ProcessGroup::from_pgid(ProcessGroupID pgid)
{
ScopedSpinLock lock(g_process_groups_lock);
for (auto& group : *g_process_groups) {
if (group.pgid() == pgid)
return &group;
}
return nullptr;
}
}