mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-24 15:50:29 +01:00
96f95b9f95
* result: try out some experimental shenanigans * result: sketch out some more shenanigans * result: see what it looks like to convert kernel to use result conds instead of guards * make rest of kernel use experimental new macro-ing
107 lines
3.5 KiB
C++
107 lines
3.5 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 <mesosphere.hpp>
|
|
|
|
namespace ams::kern {
|
|
|
|
namespace {
|
|
|
|
constinit KLightLock g_object_list_lock;
|
|
constinit KObjectName::List g_object_list;
|
|
|
|
}
|
|
|
|
void KObjectName::Initialize(KAutoObject *obj, const char *name) {
|
|
/* Set member variables. */
|
|
m_object = obj;
|
|
std::strncpy(m_name, name, sizeof(m_name));
|
|
m_name[sizeof(m_name) - 1] = '\x00';
|
|
|
|
/* Open a reference to the object we hold. */
|
|
m_object->Open();
|
|
}
|
|
|
|
bool KObjectName::MatchesName(const char *name) const {
|
|
return std::strncmp(m_name, name, sizeof(m_name)) == 0;
|
|
}
|
|
|
|
Result KObjectName::NewFromName(KAutoObject *obj, const char *name) {
|
|
/* Create a new object name. */
|
|
KObjectName *new_name = KObjectName::Allocate();
|
|
R_UNLESS(new_name != nullptr, svc::ResultOutOfResource());
|
|
|
|
/* Initialize the new name. */
|
|
new_name->Initialize(obj, name);
|
|
|
|
/* Check if there's an existing name. */
|
|
{
|
|
/* Ensure we have exclusive access to the global list. */
|
|
KScopedLightLock lk(g_object_list_lock);
|
|
|
|
/* If the object doesn't exist, put it into the list. */
|
|
KScopedAutoObject existing_object = FindImpl(name);
|
|
if (existing_object.IsNull()) {
|
|
g_object_list.push_back(*new_name);
|
|
R_SUCCEED();
|
|
}
|
|
}
|
|
|
|
/* The object already exists, which is an error condition. Perform cleanup. */
|
|
obj->Close();
|
|
KObjectName::Free(new_name);
|
|
R_THROW(svc::ResultInvalidState());
|
|
}
|
|
|
|
Result KObjectName::Delete(KAutoObject *obj, const char *compare_name) {
|
|
/* Ensure we have exclusive access to the global list. */
|
|
KScopedLightLock lk(g_object_list_lock);
|
|
|
|
/* Find a matching entry in the list, and delete it. */
|
|
for (auto &name : g_object_list) {
|
|
if (name.MatchesName(compare_name) && obj == name.GetObject()) {
|
|
/* We found a match, clean up its resources. */
|
|
obj->Close();
|
|
g_object_list.erase(g_object_list.iterator_to(name));
|
|
KObjectName::Free(std::addressof(name));
|
|
R_SUCCEED();
|
|
}
|
|
}
|
|
|
|
/* We didn't find the object in the list. */
|
|
R_THROW(svc::ResultNotFound());
|
|
}
|
|
|
|
KScopedAutoObject<KAutoObject> KObjectName::Find(const char *name) {
|
|
/* Ensure we have exclusive access to the global list. */
|
|
KScopedLightLock lk(g_object_list_lock);
|
|
|
|
return FindImpl(name);
|
|
}
|
|
|
|
KScopedAutoObject<KAutoObject> KObjectName::FindImpl(const char *compare_name) {
|
|
/* Try to find a matching object in the global list. */
|
|
for (const auto &name : g_object_list) {
|
|
if (name.MatchesName(compare_name)) {
|
|
return name.GetObject();
|
|
}
|
|
}
|
|
|
|
/* There's no matching entry in the list. */
|
|
return nullptr;
|
|
}
|
|
|
|
}
|