svc: Move most process termination code to its own function within Process

Reduces the use of Process class members externally and keeps most code
related to tearing down a process with the rest of the process code.
This commit is contained in:
Lioncash 2018-09-21 02:06:47 -04:00
parent acfc801d14
commit 48b2eda492
3 changed files with 56 additions and 32 deletions

View File

@ -7,10 +7,12 @@
#include "common/assert.h"
#include "common/common_funcs.h"
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
@ -128,6 +130,33 @@ void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
Kernel::SetupMainThread(kernel, entry_point, main_thread_priority, *this);
}
void Process::PrepareForTermination() {
status = ProcessStatus::Exited;
const auto stop_threads = [this](const std::vector<SharedPtr<Thread>>& thread_list) {
for (auto& thread : thread_list) {
if (thread->owner_process != this)
continue;
if (thread == GetCurrentThread())
continue;
// TODO(Subv): When are the other running/ready threads terminated?
ASSERT_MSG(thread->status == ThreadStatus::WaitSynchAny ||
thread->status == ThreadStatus::WaitSynchAll,
"Exiting processes with non-waiting threads is currently unimplemented");
thread->Stop();
}
};
auto& system = Core::System::GetInstance();
stop_threads(system.Scheduler(0)->GetThreadList());
stop_threads(system.Scheduler(1)->GetThreadList());
stop_threads(system.Scheduler(2)->GetThreadList());
stop_threads(system.Scheduler(3)->GetThreadList());
}
/**
* Finds a free location for the TLS section of a thread.
* @param tls_slots The TLS page array of the thread's owner process.

View File

@ -131,6 +131,16 @@ public:
return HANDLE_TYPE;
}
/// Gets the current status of the process
ProcessStatus GetStatus() const {
return status;
}
/// Gets the unique ID that identifies this particular process.
u32 GetProcessID() const {
return process_id;
}
/// Title ID corresponding to the process
u64 program_id;
@ -154,11 +164,6 @@ public:
u32 allowed_processor_mask = THREADPROCESSORID_DEFAULT_MASK;
u32 allowed_thread_priority_mask = 0xFFFFFFFF;
u32 is_virtual_address_memory_enabled = 0;
/// Current status of the process
ProcessStatus status;
/// The ID of this process
u32 process_id = 0;
/**
* Parses a list of kernel capability descriptors (as found in the ExHeader) and applies them
@ -171,6 +176,12 @@ public:
*/
void Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size);
/**
* Prepares a process for termination by stopping all of its threads
* and clearing any other resources.
*/
void PrepareForTermination();
void LoadModule(SharedPtr<CodeSet> module_, VAddr base_addr);
///////////////////////////////////////////////////////////////////////////////////////////////
@ -195,6 +206,12 @@ private:
explicit Process(KernelCore& kernel);
~Process() override;
/// Current status of the process
ProcessStatus status;
/// The ID of this process
u32 process_id = 0;
// Memory used to back the allocations in the regular heap. A single vector is used to cover
// the entire virtual address space extents that bound the allocations, including any holes.
// This makes deallocation and reallocation of holes fast and keeps process memory contiguous

View File

@ -169,7 +169,7 @@ static ResultCode GetProcessId(u32* process_id, Handle process_handle) {
return ERR_INVALID_HANDLE;
}
*process_id = process->process_id;
*process_id = process->GetProcessID();
return RESULT_SUCCESS;
}
@ -530,35 +530,13 @@ static ResultCode QueryMemory(MemoryInfo* memory_info, PageInfo* page_info, VAdd
/// Exits the current process
static void ExitProcess() {
LOG_INFO(Kernel_SVC, "Process {} exiting", Core::CurrentProcess()->process_id);
auto& current_process = Core::CurrentProcess();
ASSERT_MSG(Core::CurrentProcess()->status == ProcessStatus::Running,
LOG_INFO(Kernel_SVC, "Process {} exiting", current_process->GetProcessID());
ASSERT_MSG(current_process->GetStatus() == ProcessStatus::Running,
"Process has already exited");
Core::CurrentProcess()->status = ProcessStatus::Exited;
auto stop_threads = [](const std::vector<SharedPtr<Thread>>& thread_list) {
for (auto& thread : thread_list) {
if (thread->owner_process != Core::CurrentProcess())
continue;
if (thread == GetCurrentThread())
continue;
// TODO(Subv): When are the other running/ready threads terminated?
ASSERT_MSG(thread->status == ThreadStatus::WaitSynchAny ||
thread->status == ThreadStatus::WaitSynchAll,
"Exiting processes with non-waiting threads is currently unimplemented");
thread->Stop();
}
};
auto& system = Core::System::GetInstance();
stop_threads(system.Scheduler(0)->GetThreadList());
stop_threads(system.Scheduler(1)->GetThreadList());
stop_threads(system.Scheduler(2)->GetThreadList());
stop_threads(system.Scheduler(3)->GetThreadList());
current_process->PrepareForTermination();
// Kill the current thread
GetCurrentThread()->Stop();