mirror of
https://github.com/Atmosphere-NX/Atmosphere
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62 lines
2.4 KiB
C++
62 lines
2.4 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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namespace ams::cfg {
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namespace {
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constinit os::SdkMutex g_lock;
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constinit bool g_got_privileged_process_status = false;
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constinit os::ProcessId g_min_initial_process_id = os::InvalidProcessId, g_max_initial_process_id = os::InvalidProcessId;
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constinit os::ProcessId g_cur_process_id = os::InvalidProcessId;
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ALWAYS_INLINE void EnsurePrivilegedProcessStatusCached() {
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if (AMS_LIKELY(g_got_privileged_process_status)) {
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return;
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}
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std::scoped_lock lk(g_lock);
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if (AMS_LIKELY(!g_got_privileged_process_status)) {
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R_ABORT_UNLESS(svc::GetSystemInfo(std::addressof(g_min_initial_process_id.value), svc::SystemInfoType_InitialProcessIdRange, svc::InvalidHandle, svc::InitialProcessIdRangeInfo_Minimum));
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R_ABORT_UNLESS(svc::GetSystemInfo(std::addressof(g_max_initial_process_id.value), svc::SystemInfoType_InitialProcessIdRange, svc::InvalidHandle, svc::InitialProcessIdRangeInfo_Maximum));
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g_cur_process_id = os::GetCurrentProcessId();
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g_got_privileged_process_status = true;
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}
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}
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}
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bool IsInitialProcess() {
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/* Cache initial process range and extents. */
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EnsurePrivilegedProcessStatusCached();
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/* Determine if we're Initial. */
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return g_min_initial_process_id <= g_cur_process_id && g_cur_process_id <= g_max_initial_process_id;
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}
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void GetInitialProcessRange(os::ProcessId *out_min, os::ProcessId *out_max) {
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/* Cache initial process range and extents. */
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EnsurePrivilegedProcessStatusCached();
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/* Set output. */
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*out_min = g_min_initial_process_id;
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*out_max = g_max_initial_process_id;
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}
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}
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