EventFd: wait

GitOrigin-RevId: 1ae5d1c3d1316a7c5a868c4246b406182915b399

td/telegram/Client.cpp

@@ -225,16 +225,9 @@ class Client::Impl final {
   ~Impl() {
     input_queue_->writer_put({0, nullptr});
     scheduler_thread_.join();
-#if !TD_WINDOWS
-    auto &event_fd = output_queue_->reader_get_event_fd();
-    poll_.unsubscribe(event_fd.get_poll_info().get_pollable_fd_ref());
-#endif
   }
 
  private:
-#if !TD_WINDOWS
-  Poll poll_;
-#endif
   std::shared_ptr<InputQueue> input_queue_;
   std::shared_ptr<OutputQueue> output_queue_;
   std::shared_ptr<ConcurrentScheduler> scheduler_;
@@ -257,12 +250,6 @@ class Client::Impl final {
       }
       scheduler->finish();
     });
-
-#if !TD_WINDOWS
-    poll_.init();
-    auto &event_fd = output_queue_->reader_get_event_fd();
-    poll_.subscribe(event_fd.get_poll_info().extract_pollable_fd(nullptr), PollFlags::Read());
-#endif
   }
 
   Response receive_unlocked(double timeout) {
@@ -274,11 +261,7 @@ class Client::Impl final {
       return output_queue_->reader_get_unsafe();
     }
     if (timeout != 0) {
-#if TD_WINDOWS
       output_queue_->reader_get_event_fd().wait(static_cast<int>(timeout * 1000));
-#else
-      poll_.run(static_cast<int>(timeout * 1000));
-#endif
       return receive_unlocked(0);
     }
     return {0, nullptr};

tdutils/td/utils/port/EventFdBase.h

@@ -27,5 +27,6 @@ class EventFdBase {
   virtual Status get_pending_error() TD_WARN_UNUSED_RESULT = 0;
   virtual void release() = 0;
   virtual void acquire() = 0;
+  virtual void wait(int timeout_ms) = 0;
 };
 }  // namespace td

tdutils/td/utils/port/detail/EventFdBsd.cpp

@@ -19,6 +19,7 @@ char disable_linker_warning_about_empty_file_event_fd_bsd_cpp TD_UNUSED;
 #include <fcntl.h>
 #include <sys/socket.h>
 #include <sys/types.h>
+#include <poll.h>
 
 namespace td {
 namespace detail {
@@ -88,6 +89,13 @@ void EventFdBsd::acquire() {
   }
 }
 
+void EventFdBsd::wait(int timeout_ms) {
+  pollfd fd;
+  fd.fd = get_poll_info().native_fd().fd();
+  fd.events = POLLIN;
+  poll(&fd, 1, timeout_ms);
+}
+
 }  // namespace detail
 }  // namespace td
 

tdutils/td/utils/port/detail/EventFdBsd.h

@@ -39,6 +39,8 @@ class EventFdBsd final : public EventFdBase {
   void release() override;
 
   void acquire() override;
+
+  void wait(int timeout_ms) override;
 };
 
 }  // namespace detail

tdutils/td/utils/port/detail/EventFdLinux.cpp

@@ -18,6 +18,7 @@ char disable_linker_warning_about_empty_file_event_fd_linux_cpp TD_UNUSED;
 
 #include <sys/eventfd.h>
 #include <unistd.h>
+#include <poll.h>
 
 namespace td {
 namespace detail {
@@ -106,6 +107,13 @@ void EventFdLinux::acquire() {
   }
 }
 
+void EventFdLinux::wait(int timeout_ms) {
+  pollfd fd;
+  fd.fd = get_poll_info().native_fd().fd();
+  fd.events = POLLIN;
+  poll(&fd, 1, timeout_ms);
+}
+
 }  // namespace detail
 }  // namespace td
 

tdutils/td/utils/port/detail/EventFdLinux.h

@@ -41,6 +41,8 @@ class EventFdLinux final : public EventFdBase {
   void release() override;
 
   void acquire() override;
+
+  void wait(int timeout_ms) override;
 };
 
 }  // namespace detail

tdutils/td/utils/port/detail/EventFdWindows.h

@@ -39,7 +39,7 @@ class EventFdWindows final : public EventFdBase {
 
   void acquire() override;
 
-  void wait(int timeout_ms);
+  void wait(int timeout_ms) override;
 };
 
 }  // namespace detail

tdutils/td/utils/queue.h

@@ -400,10 +400,7 @@ class PollQueue : public QueueT {
 
     while ((res = reader_wait_nonblock()) == 0) {
       // TODO: reader_flush?
-      pollfd fd;
+      reader_get_event_fd().wait(1000);
-      fd.fd = reader_get_event_fd().get_poll_info().native_fd().fd();
-      fd.events = POLLIN;
-      poll(&fd, 1, -1);
     }
     return res;
   }