#include "node_http_parser.h"
#include "node_javascript.h"
#include "node_version.h"
-#include "node_v8_platform.h"
#if defined HAVE_PERFCTR
#include "node_counters.h"
#include "string_bytes.h"
#include "util.h"
#include "uv.h"
+#include "libplatform/libplatform.h"
#include "v8-debug.h"
#include "v8-profiler.h"
#include "zlib.h"
static uv_async_t dispatch_debug_messages_async;
static Isolate* node_isolate = nullptr;
+static v8::Platform* default_platform;
class ArrayBufferAllocator : public ArrayBuffer::Allocator {
public:
bool more;
do {
+ v8::platform::PumpMessageLoop(default_platform, isolate);
more = uv_run(env->event_loop(), UV_RUN_ONCE);
+
if (more == false) {
+ v8::platform::PumpMessageLoop(default_platform, isolate);
EmitBeforeExit(env);
// Emit `beforeExit` if the loop became alive either after emitting
V8::SetEntropySource(crypto::EntropySource);
#endif
- V8::InitializePlatform(new Platform(4));
+ const int thread_pool_size = 4;
+ default_platform = v8::platform::CreateDefaultPlatform(thread_pool_size);
+ V8::InitializePlatform(default_platform);
V8::Initialize();
int exit_code = 1;
}
V8::Dispose();
+ delete default_platform;
+ default_platform = nullptr;
+
delete[] exec_argv;
exec_argv = nullptr;
+++ /dev/null
-// Copyright Fedor Indutny and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-#include "node_v8_platform.h"
-
-#include "node.h"
-#include "util.h"
-#include "util-inl.h"
-#include "uv.h"
-#include "v8-platform.h"
-
-namespace node {
-
-using v8::Task;
-using v8::Isolate;
-
-// The last task to encounter before killing the worker
-class StopTask : public Task {
- public:
- void Run() {}
-};
-
-static StopTask stop_task_;
-
-
-Platform::Platform(unsigned int worker_count) : worker_count_(worker_count) {
- workers_ = new uv_thread_t[worker_count_];
-
- for (unsigned int i = 0; i < worker_count_; i++) {
- int err;
-
- err = uv_thread_create(worker_at(i), WorkerBody, this);
- CHECK_EQ(err, 0);
- }
-}
-
-
-Platform::~Platform() {
- // Push stop task
- for (unsigned int i = 0; i < worker_count(); i++)
- global_queue()->Push(&stop_task_);
-
- // And wait for workers to exit
- for (unsigned int i = 0; i < worker_count(); i++) {
- int err;
-
- err = uv_thread_join(worker_at(i));
- CHECK_EQ(err, 0);
- }
- delete[] workers_;
-}
-
-
-void Platform::CallOnBackgroundThread(Task* task,
- ExpectedRuntime expected_runtime) {
- global_queue()->Push(task);
-}
-
-
-void Platform::CallOnForegroundThread(Isolate* isolate, Task* task) {
- // TODO(indutny): create per-isolate thread pool
- global_queue()->Push(task);
-}
-
-
-double Platform::MonotonicallyIncreasingTime() {
- // uv_hrtime() returns a uint64_t but doubles can only represent integrals up
- // to 2^53 accurately. Take steps to prevent loss of precision on overflow.
- const uint64_t timestamp = uv_hrtime();
- const uint64_t billion = 1000 * 1000 * 1000;
- const uint64_t seconds = timestamp / billion;
- const uint64_t nanoseconds = timestamp % billion;
- return seconds + 1.0 / nanoseconds;
-}
-
-
-void Platform::WorkerBody(void* arg) {
- Platform* p = static_cast<Platform*>(arg);
-
- for (;;) {
- Task* task = p->global_queue()->Shift();
- if (task == &stop_task_)
- break;
-
- task->Run();
- delete task;
- }
-}
-
-
-TaskQueue::TaskQueue() : read_off_(0), write_off_(0) {
- CHECK_EQ(0, uv_cond_init(&read_cond_));
- CHECK_EQ(0, uv_cond_init(&write_cond_));
- CHECK_EQ(0, uv_mutex_init(&mutex_));
-}
-
-
-TaskQueue::~TaskQueue() {
- uv_mutex_lock(&mutex_);
- CHECK_EQ(read_off_, write_off_);
- uv_mutex_unlock(&mutex_);
- uv_cond_destroy(&read_cond_);
- uv_cond_destroy(&write_cond_);
- uv_mutex_destroy(&mutex_);
-}
-
-
-void TaskQueue::Push(Task* task) {
- uv_mutex_lock(&mutex_);
-
- while (can_write() == false)
- uv_cond_wait(&write_cond_, &mutex_); // Wait until there is a free slot.
-
- ring_[write_off_] = task;
- write_off_ = next(write_off_);
- uv_cond_signal(&read_cond_);
- uv_mutex_unlock(&mutex_);
-}
-
-
-Task* TaskQueue::Shift() {
- uv_mutex_lock(&mutex_);
-
- while (can_read() == false)
- uv_cond_wait(&read_cond_, &mutex_);
-
- Task* task = ring_[read_off_];
- if (can_write() == false)
- uv_cond_signal(&write_cond_); // Signal waiters that we freed up a slot.
- read_off_ = next(read_off_);
- uv_mutex_unlock(&mutex_);
-
- return task;
-}
-
-
-unsigned int TaskQueue::next(unsigned int n) {
- return (n + 1) % ARRAY_SIZE(TaskQueue {}.ring_);
-}
-
-
-bool TaskQueue::can_read() const {
- return read_off_ != write_off_;
-}
-
-
-// The read pointer chases the write pointer in the circular queue.
-// This method checks that the write pointer hasn't advanced so much
-// that it has gone full circle and caught up with the read pointer.
-//
-// can_write() returns false when there is an empty slot but the read pointer
-// points to the first element and the write pointer to the last element.
-// That should be rare enough that it is not worth the extra bookkeeping
-// to work around that. It's not harmful either, just mildly inefficient.
-bool TaskQueue::can_write() const {
- return next(write_off_) != read_off_;
-}
-
-
-} // namespace node
+++ /dev/null
-// Copyright Fedor Indutny and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-#ifndef SRC_NODE_V8_PLATFORM_H_
-#define SRC_NODE_V8_PLATFORM_H_
-
-#include "uv.h"
-#include "v8-platform.h"
-
-namespace node {
-
-class TaskQueue {
- public:
- TaskQueue();
- ~TaskQueue();
-
- void Push(v8::Task* task);
- v8::Task* Shift();
-
- private:
- static unsigned int next(unsigned int n);
- bool can_read() const;
- bool can_write() const;
- uv_cond_t read_cond_;
- uv_cond_t write_cond_;
- uv_mutex_t mutex_;
- unsigned int read_off_;
- unsigned int write_off_;
- v8::Task* ring_[1024];
-};
-
-class Platform : public v8::Platform {
- public:
- explicit Platform(unsigned int worker_count);
- virtual ~Platform() override;
-
- void CallOnBackgroundThread(v8::Task* task,
- ExpectedRuntime expected_runtime) override;
- void CallOnForegroundThread(v8::Isolate* isolate, v8::Task* task) override;
- double MonotonicallyIncreasingTime() override;
-
- protected:
- static void WorkerBody(void* arg);
-
- inline TaskQueue* global_queue() { return &global_queue_; }
- inline uv_thread_t* worker_at(unsigned int index) { return &workers_[index]; }
- inline unsigned int worker_count() const { return worker_count_; }
-
- uv_thread_t* workers_;
- unsigned int worker_count_;
- TaskQueue global_queue_;
-};
-
-} // namespace node
-
-#endif // SRC_NODE_V8_PLATFORM_H_
projects / platform / upstream / nodejs.git / commitdiff