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Name	Size	Permission
aliased_buffer.h	6.42 KB	-rw-r--r--
async_wrap-inl.h	3.33 KB	-rw-r--r--
async_wrap.h	9.16 KB	-rw-r--r--
base64.h	5.82 KB	-rw-r--r--
base_object-inl.h	4.02 KB	-rw-r--r--
base_object.h	4.43 KB	-rw-r--r--
connect_wrap.h	617 B	-rw-r--r--
connection_wrap.h	699 B	-rw-r--r--
debug_utils.h	4.29 KB	-rw-r--r--
env-inl.h	30.64 KB	-rw-r--r--
env.h	46.48 KB	-rw-r--r--
handle_wrap.h	3.91 KB	-rw-r--r--
inspector_agent.h	4.13 KB	-rw-r--r--
inspector_io.h	2.63 KB	-rw-r--r--
inspector_socket.h	1.46 KB	-rw-r--r--
inspector_socket_server.h	3.21 KB	-rw-r--r--
js_stream.h	1.58 KB	-rw-r--r--
memory_tracker-inl.h	10.83 KB	-rw-r--r--
memory_tracker.h	9.96 KB	-rw-r--r--
module_wrap.h	3.07 KB	-rw-r--r--
node.h	35.16 KB	-rw-r--r--
node_api.h	35.44 KB	-rw-r--r--
node_api_types.h	4.16 KB	-rw-r--r--
node_buffer.h	3.4 KB	-rw-r--r--
node_code_cache.h	432 B	-rw-r--r--
node_constants.h	3.11 KB	-rw-r--r--
node_context_data.h	1.14 KB	-rw-r--r--
node_contextify.h	4.81 KB	-rw-r--r--
node_counters.h	2.37 KB	-rw-r--r--
node_crypto.h	23.92 KB	-rw-r--r--
node_crypto_bio.h	5.44 KB	-rw-r--r--
node_crypto_clienthello-inl.h	2.62 KB	-rw-r--r--
node_crypto_clienthello.h	4 KB	-rw-r--r--
node_crypto_groups.h	23.12 KB	-rw-r--r--
node_dtrace.h	2.91 KB	-rw-r--r--
node_errors.h	6.06 KB	-rw-r--r--
node_file.h	10.16 KB	-rw-r--r--
node_http2.h	47.76 KB	-rw-r--r--
node_http2_state.h	4.72 KB	-rw-r--r--
node_i18n.h	2.4 KB	-rw-r--r--
node_internals.h	28.47 KB	-rw-r--r--
node_javascript.h	1.72 KB	-rw-r--r--
node_messaging.h	8.38 KB	-rw-r--r--
node_mutex.h	4.42 KB	-rw-r--r--
node_object_wrap.h	3.7 KB	-rw-r--r--
node_options-inl.h	14.78 KB	-rw-r--r--
node_options.h	12.25 KB	-rw-r--r--
node_perf.h	3.64 KB	-rw-r--r--
node_perf_common.h	3 KB	-rw-r--r--
node_persistent.h	936 B	-rw-r--r--
node_platform.h	5.14 KB	-rw-r--r--
node_revert.h	2.21 KB	-rw-r--r--
node_root_certs.h	223.29 KB	-rw-r--r--
node_stat_watcher.h	2.15 KB	-rw-r--r--
node_url.h	6.16 KB	-rw-r--r--
node_version.h	3.79 KB	-rw-r--r--
node_watchdog.h	3.03 KB	-rw-r--r--
node_win32_etw_provider-inl.h	11.67 KB	-rw-r--r--
node_win32_etw_provider.h	3.67 KB	-rw-r--r--
node_win32_perfctr_provider.h	2.14 KB	-rw-r--r--
node_worker.h	2.88 KB	-rw-r--r--
pipe_wrap.h	2.62 KB	-rw-r--r--
req_wrap-inl.h	5.44 KB	-rw-r--r--
req_wrap.h	1.87 KB	-rw-r--r--
sharedarraybuffer_metadata.h	2.34 KB	-rw-r--r--
spawn_sync.h	6.82 KB	-rw-r--r--
stream_base-inl.h	14.08 KB	-rw-r--r--
stream_base.h	13.46 KB	-rw-r--r--
stream_pipe.h	2 KB	-rw-r--r--
stream_wrap.h	4.03 KB	-rw-r--r--
string_bytes.h	5.14 KB	-rw-r--r--
string_decoder-inl.h	876 B	-rw-r--r--
string_decoder.h	1.5 KB	-rw-r--r--
string_search.h	20.53 KB	-rw-r--r--
tcp_wrap.h	3.59 KB	-rw-r--r--
tls_wrap.h	6.61 KB	-rw-r--r--
tty_wrap.h	2.22 KB	-rw-r--r--
udp_wrap.h	4.12 KB	-rw-r--r--
util-inl.h	14.06 KB	-rw-r--r--
util.h	15.9 KB	-rw-r--r--
v8abbr.h	5.03 KB	-rw-r--r--

Code Editor : node_platform.h

#ifndef SRC_NODE_PLATFORM_H_
#define SRC_NODE_PLATFORM_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include <queue>
#include <unordered_map>
#include <vector>
#include <functional>

#include "libplatform/libplatform.h"
#include "node.h"
#include "node_mutex.h"
#include "tracing/agent.h"
#include "uv.h"

namespace node {

class NodePlatform;
class IsolateData;
class PerIsolatePlatformData;

template <class T>
class TaskQueue {
 public:
  TaskQueue();
  ~TaskQueue() {}

void Push(std::unique_ptr<T> task);
  std::unique_ptr<T> Pop();
  std::unique_ptr<T> BlockingPop();
  std::queue<std::unique_ptr<T>> PopAll();
  void NotifyOfCompletion();
  void BlockingDrain();
  void Stop();

private:
  Mutex lock_;
  ConditionVariable tasks_available_;
  ConditionVariable tasks_drained_;
  int outstanding_tasks_;
  bool stopped_;
  std::queue<std::unique_ptr<T>> task_queue_;
};

struct DelayedTask {
  std::unique_ptr<v8::Task> task;
  uv_timer_t timer;
  double timeout;
  std::shared_ptr<PerIsolatePlatformData> platform_data;
};

// This acts as the foreground task runner for a given Isolate.
class PerIsolatePlatformData :
    public v8::TaskRunner,
    public std::enable_shared_from_this<PerIsolatePlatformData> {
 public:
  PerIsolatePlatformData(v8::Isolate* isolate, uv_loop_t* loop);
  ~PerIsolatePlatformData();

void PostTask(std::unique_ptr<v8::Task> task) override;
  void PostIdleTask(std::unique_ptr<v8::IdleTask> task) override;
  void PostDelayedTask(std::unique_ptr<v8::Task> task,
                       double delay_in_seconds) override;
  bool IdleTasksEnabled() override { return false; }

void Shutdown();

void ref();
  int unref();

// Returns true if work was dispatched or executed. New tasks that are
  // posted during flushing of the queue are postponed until the next
  // flushing.
  bool FlushForegroundTasksInternal();
  void CancelPendingDelayedTasks();

const uv_loop_t* event_loop() const { return loop_; }

private:
  void DeleteFromScheduledTasks(DelayedTask* task);

static void FlushTasks(uv_async_t* handle);
  static void RunForegroundTask(std::unique_ptr<v8::Task> task);
  static void RunForegroundTask(uv_timer_t* timer);

int ref_count_ = 1;
  uv_loop_t* const loop_;
  uv_async_t* flush_tasks_ = nullptr;
  TaskQueue<v8::Task> foreground_tasks_;
  TaskQueue<DelayedTask> foreground_delayed_tasks_;

// Use a custom deleter because libuv needs to close the handle first.
  typedef std::unique_ptr<DelayedTask, std::function<void(DelayedTask*)>>
      DelayedTaskPointer;
  std::vector<DelayedTaskPointer> scheduled_delayed_tasks_;
};

// This acts as the single background task runner for all Isolates.
class BackgroundTaskRunner : public v8::TaskRunner {
 public:
  explicit BackgroundTaskRunner(int thread_pool_size);

void BlockingDrain();
  void Shutdown();

size_t NumberOfAvailableBackgroundThreads() const;

private:
  TaskQueue<v8::Task> background_tasks_;

class DelayedTaskScheduler;
  std::unique_ptr<DelayedTaskScheduler> delayed_task_scheduler_;

std::vector<std::unique_ptr<uv_thread_t>> threads_;
};

class NodePlatform : public MultiIsolatePlatform {
 public:
  NodePlatform(int thread_pool_size,
               node::tracing::TracingController* tracing_controller);
  virtual ~NodePlatform() {}

void DrainBackgroundTasks(v8::Isolate* isolate) override;
  void CancelPendingDelayedTasks(v8::Isolate* isolate) override;
  void Shutdown();

// v8::Platform implementation.
  size_t NumberOfAvailableBackgroundThreads() override;
  void CallOnBackgroundThread(v8::Task* task,
                              ExpectedRuntime expected_runtime) override;
  void CallOnForegroundThread(v8::Isolate* isolate, v8::Task* task) override;
  void CallDelayedOnForegroundThread(v8::Isolate* isolate, v8::Task* task,
                                     double delay_in_seconds) override;
  bool IdleTasksEnabled(v8::Isolate* isolate) override;
  double MonotonicallyIncreasingTime() override;
  double CurrentClockTimeMillis() override;
  node::tracing::TracingController* GetTracingController() override;
  bool FlushForegroundTasks(v8::Isolate* isolate) override;

void RegisterIsolate(IsolateData* isolate_data, uv_loop_t* loop) override;
  void UnregisterIsolate(IsolateData* isolate_data) override;

std::shared_ptr<v8::TaskRunner> GetBackgroundTaskRunner(
      v8::Isolate* isolate) override;
  std::shared_ptr<v8::TaskRunner> GetForegroundTaskRunner(
      v8::Isolate* isolate) override;

private:
  std::shared_ptr<PerIsolatePlatformData> ForIsolate(v8::Isolate* isolate);

Mutex per_isolate_mutex_;
  std::unordered_map<v8::Isolate*,
                     std::shared_ptr<PerIsolatePlatformData>> per_isolate_;

node::tracing::TracingController* tracing_controller_;
  std::shared_ptr<BackgroundTaskRunner> background_task_runner_;
};

}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif  // SRC_NODE_PLATFORM_H_

${this.title}

Code Editor : node_platform.h