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hle: kernel: Manage service threads on another thread. 

- This is to allow service threads to defer destruction of themselves.
This commit is contained in:
bunnei 2020-12-29 16:39:04 -08:00
parent 69e82d01d5
commit a2a0f5318d
1 changed files with 20 additions and 9 deletions
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29
src/core/hle/kernel/kernel.cpp
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@ -15,6 +15,7 @@
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/thread.h"
#include "common/thread_worker.h"
#include "core/arm/arm_interface.h"
#include "core/arm/cpu_interrupt_handler.h"
#include "core/arm/exclusive_monitor.h"
@ -58,11 +59,11 @@ struct KernelCore::Impl {
}
void Initialize(KernelCore& kernel) {
process_list.clear();
RegisterHostThread();
global_scheduler_context = std::make_unique<Kernel::GlobalSchedulerContext>(kernel);
service_thread_manager =
std::make_unique<Common::ThreadWorker>(1, "yuzu:ServiceThreadManager");
InitializePhysicalCores();
InitializeSystemResourceLimit(kernel);
@ -79,6 +80,12 @@ struct KernelCore::Impl {
}
void Shutdown() {
process_list.clear();
// Ensures all service threads gracefully shutdown
service_thread_manager.reset();
service_threads.clear();
next_object_id = 0;
next_kernel_process_id = Process::InitialKIPIDMin;
next_user_process_id = Process::ProcessIDMin;
@ -106,9 +113,6 @@ struct KernelCore::Impl {
// Next host thead ID to use, 0-3 IDs represent core threads, >3 represent others
next_host_thread_id = Core::Hardware::NUM_CPU_CORES;
// Ensures all service threads gracefully shutdown
service_threads.clear();
}
void InitializePhysicalCores() {
@ -337,6 +341,10 @@ struct KernelCore::Impl {
// Threads used for services
std::unordered_set<std::shared_ptr<Kernel::ServiceThread>> service_threads;
// Service threads are managed by a worker thread, so that a calling service thread can queue up
// the release of itself
std::unique_ptr<Common::ThreadWorker> service_thread_manager;
std::array<std::shared_ptr<Thread>, Core::Hardware::NUM_CPU_CORES> suspend_threads{};
std::array<Core::CPUInterruptHandler, Core::Hardware::NUM_CPU_CORES> interrupts{};
std::array<std::unique_ptr<Kernel::KScheduler>, Core::Hardware::NUM_CPU_CORES> schedulers{};
@ -633,14 +641,17 @@ void KernelCore::ExitSVCProfile() {
std::weak_ptr<Kernel::ServiceThread> KernelCore::CreateServiceThread(const std::string& name) {
auto service_thread = std::make_shared<Kernel::ServiceThread>(*this, 1, name);
impl->service_threads.emplace(service_thread);
impl->service_thread_manager->QueueWork(
[this, service_thread] { impl->service_threads.emplace(service_thread); });
return service_thread;
}
void KernelCore::ReleaseServiceThread(std::weak_ptr<Kernel::ServiceThread> service_thread) {
if (auto strong_ptr = service_thread.lock()) {
impl->service_threads.erase(strong_ptr);
}
impl->service_thread_manager->QueueWork([this, service_thread] {
if (auto strong_ptr = service_thread.lock()) {
impl->service_threads.erase(strong_ptr);
}
});
}
} // namespace Kernel