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https://github.com/Atmosphere-NX/Atmosphere.git
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ad636f7216
* Stratosphere: Use modern C++ idioms in some places * algorithms like std::for_each are used instead of raw loops * Stratosphere: Replace more raw loops with algorithms * Stratosphere: Add a utility predicate function to test for equality with a reference element This can be used to rewrite some common raw loops using algorithms instead * fs.mitm: Use variant * fs.mitm: Use enum class * fs.mitm: Turn RomFSSourceInfo::Cleanup into a destructor This obsoletes the need for a custom deleter in other places * fs.mitm: Use enum class some more * fs.mitm: Use unique_ptr * fs.mitm: Simplify initialization * Stratosphere: Simplify initialization * fs.mitm: Use unique_ptr (fix memory leak along the way) The previous code was using "delete" rather than "delete[]" * fs.mitm: Use vector::emplace_back rather than push_back emplace_back constructs elements in-place, hence avoiding a redundant element copy. * Stratosphere: Replace more raw loops with algorithms * Stratosphere: Use unique_ptr * fs.mitm: Replace more raw loops with algorithms * Stratosphere: Prefer move-construction over copy-construction when moving sink parameters around
105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
#include <switch.h>
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#include <algorithm>
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#include <functional>
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#include <stratosphere/multithreadedwaitablemanager.hpp>
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void MultiThreadedWaitableManager::process() {
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Result rc;
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for (unsigned int i = 0; i < num_threads; i++) {
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if (R_FAILED((rc = threadStart(&threads[i])))) {
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fatalSimple(rc);
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}
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}
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MultiThreadedWaitableManager::thread_func(this);
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}
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void MultiThreadedWaitableManager::process_until_timeout() {
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/* TODO: Panic. */
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}
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void MultiThreadedWaitableManager::add_waitable(IWaitable *waitable) {
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this->lock.Lock();
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this->to_add_waitables.push_back(waitable);
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waitable->set_manager(this);
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this->new_waitable_event->signal_event();
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this->lock.Unlock();
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}
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IWaitable *MultiThreadedWaitableManager::get_waitable() {
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std::vector<Handle> handles;
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int handle_index = 0;
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Result rc;
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this->get_waitable_lock.Lock();
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while (1) {
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/* Sort waitables by priority. */
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std::sort(this->waitables.begin(), this->waitables.end(), IWaitable::compare);
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/* Copy out handles. */
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handles.resize(this->waitables.size());
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std::transform(this->waitables.begin(), this->waitables.end(), handles.begin(), [](IWaitable *w) { return w->get_handle(); });
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rc = svcWaitSynchronization(&handle_index, handles.data(), this->waitables.size(), this->timeout);
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IWaitable *w = this->waitables[handle_index];
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if (R_SUCCEEDED(rc)) {
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std::for_each(waitables.begin(), waitables.begin() + handle_index, std::mem_fn(&IWaitable::update_priority));
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this->waitables.erase(this->waitables.begin() + handle_index);
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} else if (rc == 0xEA01) {
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/* Timeout. */
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std::for_each(waitables.begin(), waitables.end(), std::mem_fn(&IWaitable::update_priority));
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} else if (rc != 0xF601 && rc != 0xE401) {
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/* TODO: Panic. When can this happen? */
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} else {
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std::for_each(waitables.begin(), waitables.begin() + handle_index, std::mem_fn(&IWaitable::update_priority));
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this->waitables.erase(this->waitables.begin() + handle_index);
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delete w;
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}
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/* Do deferred callback for each waitable. */
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for (auto & waitable : this->waitables) {
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if (waitable->get_deferred()) {
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waitable->handle_deferred();
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}
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}
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/* Return waitable. */
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if (R_SUCCEEDED(rc)) {
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if (w == this->new_waitable_event) {
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w->handle_signaled(0);
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this->waitables.push_back(w);
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} else {
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this->get_waitable_lock.Unlock();
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return w;
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}
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}
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}
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}
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Result MultiThreadedWaitableManager::add_waitable_callback(void *arg, Handle *handles, size_t num_handles, u64 timeout) {
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MultiThreadedWaitableManager *this_ptr = (MultiThreadedWaitableManager *)arg;
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svcClearEvent(handles[0]);
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this_ptr->lock.Lock();
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this_ptr->waitables.insert(this_ptr->waitables.end(), this_ptr->to_add_waitables.begin(), this_ptr->to_add_waitables.end());
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this_ptr->to_add_waitables.clear();
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this_ptr->lock.Unlock();
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return 0;
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}
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void MultiThreadedWaitableManager::thread_func(void *t) {
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MultiThreadedWaitableManager *this_ptr = (MultiThreadedWaitableManager *)t;
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while (1) {
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IWaitable *w = this_ptr->get_waitable();
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if (w) {
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Result rc = w->handle_signaled(0);
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if (rc == 0xF601) {
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/* Close! */
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delete w;
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} else {
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this_ptr->add_waitable(w);
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}
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}
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}
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}
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