mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-10 07:06:34 +00:00
75 lines
2.8 KiB
C++
75 lines
2.8 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 "ldr_launch_record.hpp"
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namespace ams::ldr {
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namespace {
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/* Global cache. */
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std::set<u64> g_launched_programs;
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constexpr size_t NumSystemProgramIds = ncm::SystemProgramId::End.value - ncm::SystemProgramId::Start.value + 1;
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static_assert(util::IsPowerOfTwo(NumSystemProgramIds));
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static_assert(util::IsAligned(NumSystemProgramIds, BITSIZEOF(u64)));
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bool IsTrackableSystemProgramId(ncm::ProgramId program_id) {
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return ncm::SystemProgramId::Start <= program_id && program_id <= ncm::SystemProgramId::End;
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}
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u64 g_system_launch_records[NumSystemProgramIds / BITSIZEOF(u64)];
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void SetLaunchedSystemProgram(ncm::SystemProgramId program_id) {
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const u64 val = program_id.value - ncm::SystemProgramId::Start.value;
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g_system_launch_records[val / BITSIZEOF(u64)] |= (1ul << (val % BITSIZEOF(u64)));
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}
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bool HasLaunchedSystemProgram(ncm::SystemProgramId program_id) {
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const u64 val = program_id.value - ncm::SystemProgramId::Start.value;
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return (g_system_launch_records[val / BITSIZEOF(u64)] & (1ul << (val % BITSIZEOF(u64)))) != 0;
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}
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}
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/* Launch Record API. */
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bool HasLaunchedProgram(ncm::ProgramId program_id) {
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if (IsTrackableSystemProgramId(program_id)) {
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return HasLaunchedSystemProgram(ncm::SystemProgramId{program_id.value});
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} else {
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return g_launched_programs.find(static_cast<u64>(program_id)) != g_launched_programs.end();
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}
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}
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void SetLaunchedProgram(ncm::ProgramId program_id) {
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if (IsTrackableSystemProgramId(program_id)) {
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SetLaunchedSystemProgram(ncm::SystemProgramId{program_id.value});
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} else {
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g_launched_programs.insert(static_cast<u64>(program_id));
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}
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}
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}
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/* Loader wants to override this libstratosphere function, which is weakly linked. */
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/* This is necessary to prevent circular dependencies. */
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namespace ams::pm::info {
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Result HasLaunchedProgram(bool *out, ncm::ProgramId program_id) {
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*out = ldr::HasLaunchedProgram(program_id);
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return ResultSuccess();
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}
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}
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