ProcessManager: Implement core process management logic.

This commit is contained in:
Michael Scire 2018-05-03 23:58:25 -06:00
parent 999498c0a0
commit d6cf7c605f
12 changed files with 688 additions and 99 deletions

View file

@ -10,6 +10,7 @@
#include "stratosphere/ievent.hpp"
#include "stratosphere/systemevent.hpp"
#include "stratosphere/hossynch.hpp"
#include "stratosphere/waitablemanager.hpp"

View file

@ -0,0 +1,120 @@
#pragma once
#include <switch.h>
class HosMutex {
private:
Mutex m;
public:
HosMutex() {
mutexInit(&this->m);
}
void Lock() {
mutexLock(&this->m);
}
void Unlock() {
mutexUnlock(&this->m);
}
bool TryLock() {
return mutexTryLock(&this->m);
}
};
class HosRecursiveMutex {
private:
RMutex m;
public:
HosRecursiveMutex() {
rmutexInit(&this->m);
}
void Lock() {
rmutexLock(&this->m);
}
void Unlock() {
rmutexUnlock(&this->m);
}
bool TryLock() {
return rmutexTryLock(&this->m);
}
};
class HosCondVar {
private:
CondVar cv;
Mutex m;
public:
HosCondVar() {
mutexInit(&m);
condvarInit(&cv, &m);
}
Result WaitTimeout(u64 timeout) {
return condvarWaitTimeout(&cv, timeout);
}
Result Wait() {
return condvarWait(&cv);
}
Result Wake(int num) {
return condvarWake(&cv, num);
}
Result WakeOne() {
return condvarWakeOne(&cv);
}
Result WakeAll() {
return condvarWakeAll(&cv);
}
};
class HosSemaphore {
private:
CondVar cv;
Mutex m;
u64 count;
public:
HosSemaphore() {
count = 0;
mutexInit(&m);
condvarInit(&cv, &m);
}
HosSemaphore(u64 c) : count(c) {
mutexInit(&m);
condvarInit(&cv, &m);
}
void Signal() {
mutexLock(&this->m);
count++;
condvarWakeOne(&cv);
mutexUnlock(&this->m);
}
void Wait() {
mutexLock(&this->m);
while (!count) {
condvarWait(&cv);
}
count--;
mutexUnlock(&this->m);
}
bool TryWait() {
mutexLock(&this->m);
bool success = false;
if (count) {
count--;
success = true;
}
mutexUnlock(&this->m);
return success;
}
};

View file

@ -6,7 +6,7 @@
typedef Result (*EventCallback)(Handle *handles, size_t num_handles, u64 timeout);
class IEvent : IWaitable {
class IEvent : public IWaitable {
protected:
std::vector<Handle> handles;
EventCallback callback;

View file

@ -7,7 +7,7 @@
#define SYSTEMEVENT_INDEX_WAITHANDLE 0
#define SYSTEMEVENT_INDEX_SGNLHANDLE 1
class SystemEvent : IEvent {
class SystemEvent : public IEvent {
public:
SystemEvent(EventCallback callback) : IEvent(0, callback) {
Handle wait_h;

View file

@ -6,9 +6,9 @@
class WaitableManager {
std::vector<IWaitable *> waitables;
u64 timeout;
private:
void process_internal(bool break_on_timeout);
public:
WaitableManager(u64 t) : waitables(0), timeout(t) { }
~WaitableManager() {
@ -22,4 +22,5 @@ class WaitableManager {
unsigned int get_num_signalable();
void add_waitable(IWaitable *waitable);
void process();
void process_until_timeout();
};

View file

@ -17,7 +17,7 @@ void WaitableManager::add_waitable(IWaitable *waitable) {
this->waitables.push_back(waitable);
}
void WaitableManager::process() {
void WaitableManager::process_internal(bool break_on_timeout) {
std::vector<IWaitable *> signalables;
std::vector<Handle> handles;
@ -56,6 +56,9 @@ void WaitableManager::process() {
for (auto & waitable : signalables) {
waitable->update_priority();
}
if (break_on_timeout) {
return;
}
} else if (rc != 0xF601) {
/* TODO: Panic. When can this happen? */
}
@ -91,4 +94,12 @@ void WaitableManager::process() {
}
}
}
}
void WaitableManager::process() {
WaitableManager::process_internal(false);
}
void WaitableManager::process_until_timeout() {
WaitableManager::process_internal(true);
}

View file

@ -8,6 +8,7 @@
#include "pm_boot_mode.hpp"
#include "pm_process_track.hpp"
#include "pm_registration.hpp"
extern "C" {
extern u32 __start__;
@ -59,22 +60,29 @@ void __appInit(void) {
fatalSimple(0xCAFE << 4 | 2);
}
rc = splInitialize();
if (R_FAILED(rc)) {
fatalSimple(0xCAFE << 4 | 3);
}
rc = ldrPmInitialize();
if (R_FAILED(rc)) {
fatalSimple(0xCAFE << 4 | 4);
}
rc = smManagerInitialize();
if (R_FAILED(rc)) {
fatalSimple(0xCAFE << 4 | 4);
}
rc = splInitialize();
if (R_FAILED(rc)) {
fatalSimple(0xCAFE << 4 | 5);
}
}
void __appExit(void) {
/* Cleanup services. */
fsdevUnmountAll();
ldrPmExit();
splExit();
smManagerExit();
ldrPmExit();
fsprExit();
lrExit();
fsExit();
@ -87,7 +95,7 @@ int main(int argc, char **argv)
consoleDebugInit(debugDevice_SVC);
/* Initialize and spawn the Process Tracking thread. */
ProcessTracking::Initialize();
Registration::InitializeSystemResources();
if (R_FAILED(threadCreate(&process_track_thread, &ProcessTracking::MainLoop, NULL, 0x4000, 0x15, 0))) {
/* TODO: Panic. */
}
@ -95,7 +103,6 @@ int main(int argc, char **argv)
/* TODO: Panic. */
}
/* TODO: What's a good timeout value to use here? */
WaitableManager *server_manager = new WaitableManager(U64_MAX);

View file

@ -1,92 +1,17 @@
#include <switch.h>
#include <stratosphere.hpp>
#include "pm_process_track.hpp"
static SystemEvent *g_process_event = NULL;
static SystemEvent *g_debug_title_event = NULL;
static SystemEvent *g_debug_application_event = NULL;
static const u64 g_memory_resource_limits[5][3] = {
{0x010D00000ULL, 0x0CD500000ULL, 0x021700000ULL},
{0x01E100000ULL, 0x080000000ULL, 0x061800000ULL},
{0x014800000ULL, 0x0CD500000ULL, 0x01DC00000ULL},
{0x028D00000ULL, 0x133400000ULL, 0x023800000ULL},
{0x028D00000ULL, 0x0CD500000ULL, 0x089700000ULL}
};
/* These are the limits for LimitableResources. */
/* Memory, Threads, Events, TransferMemories, Sessions. */
static u64 g_resource_limits[3][5] = {
{0x0, 0x1FC, 0x258, 0x80, 0x31A},
{0x0, 0x60, 0x0, 0x20, 0x1},
{0x0, 0x60, 0x0, 0x20, 0x5},
};
static Handle g_resource_limit_handles[5] = {0};
void ProcessTracking::Initialize() {
/* TODO: Setup ResourceLimit values, create MainLoop thread. */
g_process_event = new SystemEvent(&IEvent::PanicCallback);
g_debug_title_event = new SystemEvent(&IEvent::PanicCallback);
g_debug_application_event = new SystemEvent(&IEvent::PanicCallback);
/* Get memory limits. */
u64 memory_arrangement;
if (R_FAILED(splGetConfig(SplConfigItem_MemoryArrange, &memory_arrangement))) {
/* TODO: panic. */
}
memory_arrangement &= 0x3F;
int memory_limit_type;
switch (memory_arrangement) {
case 2:
memory_limit_type = 1;
break;
case 3:
memory_limit_type = 2;
break;
case 17:
memory_limit_type = 3;
break;
case 18:
memory_limit_type = 4;
break;
default:
memory_limit_type = 0;
break;
}
for (unsigned int i = 0; i < 3; i++) {
g_resource_limits[i][0] = g_memory_resource_limits[memory_limit_type][i];
}
/* Create resource limits. */
for (unsigned int i = 0; i < 3; i++) {
if (i > 0) {
if (R_FAILED(svcCreateResourceLimit(&g_resource_limit_handles[i]))) {
/* TODO: Panic. */
}
} else {
u64 out = 0;
if (R_FAILED(svcGetInfo(&out, 9, 0, 0))) {
/* TODO: Panic. */
}
g_resource_limit_handles[i] = (Handle)out;
}
for (unsigned int r = 0; r < 5; r++) {
if (R_FAILED(svcSetResourceLimitLimitValue(g_resource_limit_handles[i], r, g_resource_limits[i][r]))) {
/* TODO: Panic. */
}
}
}
}
#include "pm_registration.hpp"
void ProcessTracking::MainLoop(void *arg) {
/* TODO */
while (true) {
/* PM, as a sysmodule, is basically just a while loop. */
/* Make a new waitable manager. */
WaitableManager *process_waiter = new WaitableManager(U64_MAX);
process_waiter->add_waitable(Registration::GetProcessLaunchStartEvent());
process_waiter->add_waitable(Registration::GetProcessList());
/* TODO: Properly implement this. */
svcSleepThread(100000ULL);
/* This is that while loop. */
}
/* Service processes. */
process_waiter->process();
delete process_waiter;
svcExitThread();
}

View file

@ -3,6 +3,5 @@
class ProcessTracking {
public:
static void Initialize();
static void MainLoop(void *arg);
};

View file

@ -0,0 +1,97 @@
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
class ProcessWaiter : public IWaitable {
public:
Registration::Process process;
ProcessWaiter(Registration::Process p) : process(p) {
}
ProcessWaiter(Registration::Process *p) {
this->process = *p;
}
Registration::Process *get_process() {
return &this->process;
}
/* IWaitable */
virtual unsigned int get_num_waitables() {
return 1;
}
virtual void get_waitables(IWaitable **dst) {
dst[0] = this;
}
virtual void delete_child(IWaitable *child) {
/* TODO: Panic, because we can never have any children. */
}
virtual Handle get_handle() {
return this->process.handle;
}
virtual void handle_deferred() {
/* TODO: Panic, because we can never be deferred. */
}
virtual Result handle_signaled(u64 timeout) {
Registration::HandleSignaledProcess(this->get_process());
return 0;
}
};
class ProcessList : public IWaitable {
private:
HosRecursiveMutex mutex;
public:
std::vector<ProcessWaiter *> process_waiters;
void Lock() {
this->mutex.Lock();
}
void Unlock() {
this->mutex.Unlock();
}
bool TryLock() {
return this->mutex.TryLock();
}
/* IWaitable */
virtual unsigned int get_num_waitables() {
return process_waiters.size();
}
virtual void get_waitables(IWaitable **dst) {
Lock();
for (unsigned int i = 0; i < process_waiters.size(); i++) {
dst[i] = process_waiters[i];
}
Unlock();
}
virtual void delete_child(IWaitable *child) {
/* TODO: Panic, because we should never be asked to delete a child. */
}
virtual Handle get_handle() {
/* TODO: Panic, because we don't have a handle. */
return 0;
}
virtual void handle_deferred() {
/* TODO: Panic, because we can never be deferred. */
}
virtual Result handle_signaled(u64 timeout) {
/* TODO: Panic, because we can never be signaled. */
return 0;
}
};

View file

@ -0,0 +1,381 @@
#include <switch.h>
#include <stratosphere.hpp>
#include <atomic>
#include "pm_registration.hpp"
#include "pm_process_wait.hpp"
static ProcessList g_process_list;
static HosSemaphore g_sema_finish_launch;
static HosMutex g_process_launch_mutex;
static Registration::ProcessLaunchState g_process_launch_state;
static std::atomic_bool g_debug_next_application(false);
static std::atomic<u64> g_debug_on_launch_tid(0);
static SystemEvent *g_process_event = NULL;
static SystemEvent *g_debug_title_event = NULL;
static SystemEvent *g_debug_application_event = NULL;
static SystemEvent *g_process_launch_start_event = NULL;
static const u64 g_memory_resource_limits[5][3] = {
{0x010D00000ULL, 0x0CD500000ULL, 0x021700000ULL},
{0x01E100000ULL, 0x080000000ULL, 0x061800000ULL},
{0x014800000ULL, 0x0CD500000ULL, 0x01DC00000ULL},
{0x028D00000ULL, 0x133400000ULL, 0x023800000ULL},
{0x028D00000ULL, 0x0CD500000ULL, 0x089700000ULL}
};
/* These are the limits for LimitableResources. */
/* Memory, Threads, Events, TransferMemories, Sessions. */
static u64 g_resource_limits[3][5] = {
{0x0, 0x1FC, 0x258, 0x80, 0x31A},
{0x0, 0x60, 0x0, 0x20, 0x1},
{0x0, 0x60, 0x0, 0x20, 0x5},
};
static Handle g_resource_limit_handles[3] = {0};
void Registration::InitializeSystemResources() {
g_process_event = new SystemEvent(&IEvent::PanicCallback);
g_debug_title_event = new SystemEvent(&IEvent::PanicCallback);
g_debug_application_event = new SystemEvent(&IEvent::PanicCallback);
g_process_launch_start_event = new SystemEvent(&Registration::ProcessLaunchStartCallback);
/* Get memory limits. */
u64 memory_arrangement;
if (R_FAILED(splGetConfig(SplConfigItem_MemoryArrange, &memory_arrangement))) {
/* TODO: panic. */
}
memory_arrangement &= 0x3F;
int memory_limit_type;
switch (memory_arrangement) {
case 2:
memory_limit_type = 1;
break;
case 3:
memory_limit_type = 2;
break;
case 17:
memory_limit_type = 3;
break;
case 18:
memory_limit_type = 4;
break;
default:
memory_limit_type = 0;
break;
}
for (unsigned int i = 0; i < 3; i++) {
g_resource_limits[i][0] = g_memory_resource_limits[memory_limit_type][i];
}
/* Create resource limits. */
for (unsigned int i = 0; i < 3; i++) {
if (i > 0) {
if (R_FAILED(svcCreateResourceLimit(&g_resource_limit_handles[i]))) {
/* TODO: Panic. */
}
} else {
u64 out = 0;
if (R_FAILED(svcGetInfo(&out, 9, 0, 0))) {
/* TODO: Panic. */
}
g_resource_limit_handles[i] = (Handle)out;
}
for (unsigned int r = 0; r < 5; r++) {
if (R_FAILED(svcSetResourceLimitLimitValue(g_resource_limit_handles[i], (LimitableResource)r, g_resource_limits[i][r]))) {
/* TODO: Panic. */
}
}
}
}
Result Registration::ProcessLaunchStartCallback(Handle *handles, size_t num_handles, u64 timeout) {
Registration::HandleProcessLaunch();
return 0;
}
IWaitable *Registration::GetProcessLaunchStartEvent() {
return g_process_launch_start_event;
}
IWaitable *Registration::GetProcessList() {
return &g_process_list;
}
void Registration::HandleProcessLaunch() {
LoaderProgramInfo program_info = {0};
Result rc;
u64 launch_flags = g_process_launch_state.launch_flags;
const u8 *acid_fac, *aci0_fah, *acid_sac, *aci0_sac;
u64 *out_pid = g_process_launch_state.out_pid;
u32 reslimit_idx;
Process new_process = {0};
new_process.tid_sid = g_process_launch_state.tid_sid;
/* Check that this is a real program. */
if (R_FAILED((rc = ldrPmGetProgramInfo(new_process.tid_sid.title_id, new_process.tid_sid.storage_id, &program_info)))) {
goto HANDLE_PROCESS_LAUNCH_END;
}
/* Get the resource limit handle, ensure that we can launch the program. */
if ((program_info.application_type & 3) == 1) {
if (HasApplicationProcess()) {
rc = 0xA0F;
goto HANDLE_PROCESS_LAUNCH_END;
}
reslimit_idx = 1;
} else {
reslimit_idx = 2 * ((program_info.application_type & 3) == 2);
}
/* Try to register the title for launch in loader... */
if (R_FAILED((rc = ldrPmRegisterTitle(new_process.tid_sid.title_id, new_process.tid_sid.storage_id, &new_process.ldr_queue_index)))) {
goto HANDLE_PROCESS_LAUNCH_END;
}
/* Make sure the previous application is cleaned up. */
if ((program_info.application_type & 3) == 1) {
EnsureApplicationResourcesAvailable();
}
/* Try to create the process... */
if (R_FAILED((rc = ldrPmCreateProcess((launch_flags >> 2) & 3, new_process.ldr_queue_index, g_resource_limit_handles[reslimit_idx], &new_process.handle)))) {
goto PROCESS_CREATION_FAILED;
}
/* Get the new process's id. */
svcGetProcessId(&new_process.pid, new_process.handle);
/* Register with FS. */
acid_fac = program_info.ac_buffer + program_info.acid_sac_size + program_info.aci0_sac_size;
aci0_fah = acid_fac + program_info.acid_fac_size;
if (R_FAILED((rc = fsprRegisterProgram(new_process.pid, new_process.tid_sid.title_id, new_process.tid_sid.storage_id, aci0_fah, program_info.aci0_fah_size, acid_fac, program_info.acid_fac_size)))) {
goto FS_REGISTRATION_FAILED;
}
/* Register with PM. */
acid_sac = program_info.ac_buffer;
aci0_sac = program_info.ac_buffer + program_info.acid_sac_size;
if (R_FAILED((rc = smManagerRegisterProcess(new_process.pid, acid_sac, program_info.acid_sac_size, aci0_sac, program_info.aci0_sac_size)))) {
goto SM_REGISTRATION_FAILED;
}
/* Setup process flags. */
if (program_info.application_type & 1) {
new_process.flags |= 0x40;
}
if (launch_flags & 1) {
new_process.flags |= 1;
}
if (launch_flags & 0x10) {
new_process.flags |= 0x8;
}
/* Add process to the list. */
Registration::AddProcessToList(&new_process);
/* Signal, if relevant. */
if (new_process.tid_sid.title_id == g_debug_on_launch_tid.load()) {
g_debug_title_event->signal_event();
g_debug_on_launch_tid = 0;
rc = 0;
} else if ((new_process.flags & 0x40) && g_debug_next_application.load()) {
g_debug_application_event->signal_event();
g_debug_next_application = false;
rc = 0;
} else if (launch_flags & 2) {
rc = 0;
} else {
rc = svcStartProcess(new_process.handle, program_info.main_thread_priority, program_info.default_cpu_id, program_info.main_thread_stack_size);
if (R_SUCCEEDED(rc)) {
SetProcessState(new_process.pid, ProcessState_DebugDetached);
}
}
if (R_FAILED(rc)) {
Registration::RemoveProcessFromList(new_process.pid);
smManagerUnregisterProcess(new_process.pid);
}
SM_REGISTRATION_FAILED:
if (R_FAILED(rc)) {
fsprUnregisterProgram(new_process.pid);
}
FS_REGISTRATION_FAILED:
if (R_FAILED(rc)) {
svcCloseHandle(new_process.handle);
}
PROCESS_CREATION_FAILED:
if (R_FAILED(rc)) {
ldrPmUnregisterTitle(new_process.ldr_queue_index);
}
HANDLE_PROCESS_LAUNCH_END:
g_process_launch_state.result = rc;
if (R_SUCCEEDED(rc)) {
*out_pid = new_process.pid;
}
g_sema_finish_launch.Signal();
}
Result Registration::LaunchProcess(u64 title_id, FsStorageId storage_id, u64 launch_flags, u64 *out_pid) {
Result rc;
/* Only allow one mutex to exist. */
g_process_launch_mutex.Lock();
g_process_launch_state.tid_sid.title_id = title_id;
g_process_launch_state.tid_sid.storage_id = storage_id;
g_process_launch_state.launch_flags = launch_flags;
g_process_launch_state.out_pid = out_pid;
/* Start a launch, and wait for it to exit. */
g_process_launch_start_event->signal_event();
g_sema_finish_launch.Wait();
rc = g_process_launch_state.result;
g_process_launch_mutex.Unlock();
return rc;
}
Result Registration::LaunchProcessByTidSid(TidSid tid_sid, u64 launch_flags, u64 *out_pid) {
return LaunchProcess(tid_sid.title_id, tid_sid.storage_id, launch_flags, out_pid);
};
void Registration::HandleSignaledProcess(Process *process) {
u64 tmp;
/* Reset the signal. */
svcResetSignal(process->handle);
ProcessState old_state;
old_state = process->state;
svcGetProcessInfo(&tmp, process->handle, ProcessInfoType_ProcessState);
process->state = (ProcessState)tmp;
if (old_state == ProcessState_Crashed && process->state != ProcessState_Crashed) {
process->flags &= ~0x4;
}
switch (process->state) {
case ProcessState_Created:
case ProcessState_DebugAttached:
case ProcessState_Exiting:
break;
case ProcessState_DebugDetached:
case ProcessState_Running:
if (process->flags & 8) {
process->flags &= ~0x30;
process->flags |= 0x10;
g_process_event->signal_event();
}
break;
case ProcessState_Crashed:
process->flags |= 6;
g_process_event->signal_event();
break;
case ProcessState_Exited:
if (process->flags & 1) {
g_process_event->signal_event();
} else {
FinalizeExitedProcess(process);
}
break;
case ProcessState_DebugSuspended:
if (process->flags & 8) {
process->flags |= 0x30;
g_process_event->signal_event();
}
break;
}
}
void Registration::FinalizeExitedProcess(Process *process) {
g_process_list.Lock();
/* Unregister with FS. */
if (R_FAILED(fsprUnregisterProgram(process->pid))) {
/* TODO: Panic. */
}
/* Unregister with SM. */
if (R_FAILED(smManagerUnregisterProcess(process->pid))) {
/* TODO: Panic. */
}
/* Unregister with LDR. */
if (R_FAILED(ldrPmUnregisterTitle(process->ldr_queue_index))) {
/* TODO: Panic. */
}
/* Remove. */
RemoveProcessFromList(process->pid);
g_process_list.Unlock();
}
void Registration::AddProcessToList(Process *process) {
g_process_list.Lock();
g_process_list.process_waiters.push_back(new ProcessWaiter(process));
g_process_list.Unlock();
}
void Registration::RemoveProcessFromList(u64 pid) {
g_process_list.Lock();
/* Remove process from list. */
for (unsigned int i = 0; i < g_process_list.process_waiters.size(); i++) {
ProcessWaiter *pw = g_process_list.process_waiters[i];
Registration::Process *process = pw->get_process();
if (process->pid == pid) {
g_process_list.process_waiters.erase(g_process_list.process_waiters.begin() + i);
svcCloseHandle(process->handle);
delete pw;
break;
}
}
g_process_list.Unlock();
}
void Registration::SetProcessState(u64 pid, ProcessState new_state) {
g_process_list.Lock();
/* Set process state. */
for (unsigned int i = 0; i < g_process_list.process_waiters.size(); i++) {
ProcessWaiter *pw = g_process_list.process_waiters[i];
Registration::Process *process = pw->get_process();
if (process->pid == pid) {
process->state = new_state;
break;
}
}
g_process_list.Unlock();
}
bool Registration::HasApplicationProcess() {
bool has_app = false;
g_process_list.Lock();
for (auto &pw : g_process_list.process_waiters) {
if (pw->get_process()->flags & 0x40) {
has_app = true;
break;
}
}
g_process_list.Unlock();
return has_app;
}
void Registration::EnsureApplicationResourcesAvailable() {
Handle application_reslimit_h = g_resource_limit_handles[1];
for (unsigned int i = 0; i < 5; i++) {
u64 result;
do {
if (R_FAILED(svcGetResourceLimitCurrentValue(&result, application_reslimit_h, (LimitableResource)i))) {
return;
}
svcSleepThread(1000000ULL);
} while (result);
}
}

View file

@ -0,0 +1,47 @@
#pragma once
#include <switch.h>
#include <stratosphere.hpp>
class Registration {
public:
struct TidSid {
u64 title_id;
FsStorageId storage_id;
};
struct Process {
Handle handle;
u64 pid;
u64 ldr_queue_index;
Registration::TidSid tid_sid;
ProcessState state;
u32 flags;
};
struct ProcessLaunchState {
TidSid tid_sid;
u64 launch_flags;
u64* out_pid;
Result result;
};
static void InitializeSystemResources();
static IWaitable *GetProcessLaunchStartEvent();
static Result ProcessLaunchStartCallback(Handle *handles, size_t num_handles, u64 timeout);
static IWaitable *GetProcessList();
static void HandleSignaledProcess(Process *process);
static void FinalizeExitedProcess(Process *process);
static void AddProcessToList(Process *process);
static void RemoveProcessFromList(u64 pid);
static void SetProcessState(u64 pid, ProcessState new_state);
static void HandleProcessLaunch();
static void SignalFinishLaunchProcess();
static Result LaunchProcess(u64 title_id, FsStorageId storage_id, u64 launch_flags, u64 *out_pid);
static Result LaunchProcessByTidSid(TidSid tid_sid, u64 launch_flags, u64 *out_pid);
static bool HasApplicationProcess();
static void EnsureApplicationResourcesAvailable();
};