| // Copyright 2017 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/threading/platform_thread.h" |
| |
| #include <pthread.h> |
| #include <sched.h> |
| #include <zircon/syscalls.h> |
| |
| #include <mutex> |
| |
| #include <fuchsia/media/cpp/fidl.h> |
| #include <lib/fdio/directory.h> |
| #include <lib/sys/cpp/component_context.h> |
| |
| #include "base/fuchsia/fuchsia_logging.h" |
| #include "base/fuchsia/process_context.h" |
| #include "base/fuchsia/scheduler.h" |
| #include "base/no_destructor.h" |
| #include "base/threading/platform_thread_internal_posix.h" |
| #include "base/threading/thread_id_name_manager.h" |
| #include "base/threading/thread_local_storage.h" |
| |
| namespace base { |
| |
| namespace { |
| |
| fuchsia::media::ProfileProviderSyncPtr ConnectProfileProvider() { |
| fuchsia::media::ProfileProviderSyncPtr profile_provider; |
| const zx_status_t status = base::ComponentContextForProcess()->svc()->Connect( |
| profile_provider.NewRequest()); |
| if (status != ZX_OK) { |
| ZX_LOG(ERROR, status) |
| << "Failed to connect to ProfileProvider! Is " |
| "fuchsia.media.ProfileProvider in the component sandbox?"; |
| } |
| return profile_provider; |
| } |
| |
| // Sets the current thread to the given scheduling role, optionally including |
| // hints about the workload period and max CPU runtime (capacity * period) in |
| // that period. |
| // TODO(crbug.com/1365682): Migrate to the new fuchsia.scheduler.ProfileProvider |
| // API when available. |
| void SetThreadRole(StringPiece role_name, |
| TimeDelta period = {}, |
| float capacity = 0.0f) { |
| DCHECK_GE(capacity, 0.0); |
| DCHECK_LE(capacity, 1.0); |
| |
| static const base::NoDestructor<fuchsia::media::ProfileProviderSyncPtr> |
| profile_provider(ConnectProfileProvider()); |
| |
| zx::thread dup_thread; |
| zx_status_t status = |
| zx::thread::self()->duplicate(ZX_RIGHT_SAME_RIGHTS, &dup_thread); |
| ZX_CHECK(status == ZX_OK, status) << "zx_object_duplicate"; |
| |
| std::string role_selector{role_name}; |
| int64_t out_period, out_capacity; |
| (*profile_provider) |
| ->RegisterHandlerWithCapacity(std::move(dup_thread), role_selector, |
| period.ToZxDuration(), capacity, |
| &out_period, &out_capacity); |
| } |
| |
| } // namespace |
| |
| void InitThreading() {} |
| |
| void TerminateOnThread() {} |
| |
| size_t GetDefaultThreadStackSize(const pthread_attr_t& attributes) { |
| return 0; |
| } |
| |
| // static |
| void PlatformThread::SetName(const std::string& name) { |
| zx_status_t status = zx_object_set_property(CurrentId(), ZX_PROP_NAME, |
| name.data(), name.size()); |
| DCHECK_EQ(status, ZX_OK); |
| |
| ThreadIdNameManager::GetInstance()->SetName(name); |
| } |
| |
| // static |
| bool PlatformThread::CanChangeThreadType(ThreadType from, ThreadType to) { |
| return from == to || to == ThreadType::kDisplayCritical || |
| to == ThreadType::kRealtimeAudio; |
| } |
| |
| namespace internal { |
| |
| void SetCurrentThreadTypeImpl(ThreadType thread_type, |
| MessagePumpType pump_type_hint) { |
| switch (thread_type) { |
| case ThreadType::kDefault: |
| SetThreadRole("chromium.base.threading.default"); |
| |
| break; |
| |
| case ThreadType::kBackground: |
| SetThreadRole("chromium.base.threading.background"); |
| break; |
| |
| case ThreadType::kUtility: |
| SetThreadRole("chromium.base.threading.utility"); |
| break; |
| |
| case ThreadType::kResourceEfficient: |
| SetThreadRole("chromium.base.threading.resource-efficient"); |
| break; |
| |
| case ThreadType::kCompositing: |
| SetThreadRole("chromium.base.threading.compositing", |
| kDisplaySchedulingPeriod, kDisplaySchedulingCapacity); |
| break; |
| |
| case ThreadType::kDisplayCritical: |
| SetThreadRole("chromium.base.threading.display", kDisplaySchedulingPeriod, |
| kDisplaySchedulingCapacity); |
| break; |
| |
| case ThreadType::kRealtimeAudio: |
| SetThreadRole("chromium.base.threading.realtime-audio", |
| kAudioSchedulingPeriod, kAudioSchedulingCapacity); |
| break; |
| } |
| } |
| |
| } // namespace internal |
| |
| // static |
| ThreadPriorityForTest PlatformThread::GetCurrentThreadPriorityForTest() { |
| // Fuchsia doesn't provide a way to get the current thread's priority. |
| // Use ThreadType stored in TLS as a proxy. |
| const ThreadType thread_type = PlatformThread::GetCurrentThreadType(); |
| switch (thread_type) { |
| case ThreadType::kBackground: |
| case ThreadType::kUtility: |
| case ThreadType::kResourceEfficient: |
| case ThreadType::kDefault: |
| case ThreadType::kCompositing: |
| return ThreadPriorityForTest::kNormal; |
| case ThreadType::kDisplayCritical: |
| return ThreadPriorityForTest::kDisplay; |
| case ThreadType::kRealtimeAudio: |
| return ThreadPriorityForTest::kRealtimeAudio; |
| } |
| } |
| |
| } // namespace base |