sgjesse@google.com
42b70dcddb
The platform thread interface (dart::thread) is now refactored to an all static interface as suggested by iposva@ and asiva@. Use this interface for running all threads in the VM. R=ager@google.com, iposva@google.com BUG= TEST= Review URL: https://chromiumcodereview.appspot.com//9141005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3830 260f80e4-7a28-3924-810f-c04153c831b5
122 lines
2.9 KiB
C++
122 lines
2.9 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef BIN_EVENTHANDLER_LINUX_H_
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#define BIN_EVENTHANDLER_LINUX_H_
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#if !defined(BIN_EVENTHANDLER_H_)
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#error Do not include eventhandler_linux.h directly; use eventhandler.h instead.
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#endif
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#include <unistd.h>
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#include <sys/socket.h>
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#include "bin/hashmap.h"
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class InterruptMessage {
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public:
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intptr_t id;
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Dart_Port dart_port;
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int64_t data;
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};
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enum PortDataFlags {
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kClosedRead = 0,
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kClosedWrite = 1,
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};
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class SocketData {
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public:
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explicit SocketData(intptr_t fd) : fd_(fd), port_(0), mask_(0), flags_(0) {
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ASSERT(fd_ != -1);
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}
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intptr_t GetPollEvents();
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void Unregister() {
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port_ = 0;
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mask_ = 0;
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}
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void ShutdownRead() {
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shutdown(fd_, SHUT_RD);
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MarkClosedRead();
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}
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void ShutdownWrite() {
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shutdown(fd_, SHUT_WR);
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MarkClosedWrite();
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}
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void Close() {
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Unregister();
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flags_ = 0;
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close(fd_);
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fd_ = -1;
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}
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bool IsListeningSocket() { return (mask_ & (1 << kListeningSocket)) != 0; }
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bool IsPipe() { return (mask_ & (1 << kPipe)) != 0; }
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bool IsClosedRead() { return (flags_ & (1 << kClosedRead)) != 0; }
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bool IsClosedWrite() { return (flags_ & (1 << kClosedWrite)) != 0; }
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void MarkClosedRead() { flags_ |= (1 << kClosedRead); }
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void MarkClosedWrite() { flags_ |= (1 << kClosedWrite); }
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bool HasPollEvents() { return mask_ != 0; }
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void SetPortAndMask(Dart_Port port, intptr_t mask) {
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ASSERT(fd_ != -1);
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port_ = port;
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mask_ = mask;
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}
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intptr_t fd() { return fd_; }
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Dart_Port port() { return port_; }
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intptr_t mask() { return mask_; }
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private:
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intptr_t fd_;
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Dart_Port port_;
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intptr_t mask_;
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intptr_t flags_;
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};
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class EventHandlerImplementation {
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public:
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EventHandlerImplementation();
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~EventHandlerImplementation();
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// Gets the socket data structure for a given file
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// descriptor. Creates a new one of one is not found.
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SocketData* GetSocketData(intptr_t fd);
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void SendData(intptr_t id, Dart_Port dart_port, intptr_t data);
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void StartEventHandler();
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private:
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intptr_t GetTimeout();
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bool GetInterruptMessage(InterruptMessage* msg);
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struct pollfd* GetPollFds(intptr_t* size);
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void HandleEvents(struct pollfd* pollfds, int pollfds_size, int result_size);
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void HandleTimeout();
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static void Poll(uword args);
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void WakeupHandler(intptr_t id, Dart_Port dart_port, int64_t data);
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void HandleInterruptFd();
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void SetPort(intptr_t fd, Dart_Port dart_port, intptr_t mask);
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intptr_t GetPollEvents(struct pollfd* pollfd);
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static void* GetHashmapKeyFromFd(intptr_t fd);
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static uint32_t GetHashmapHashFromFd(intptr_t fd);
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HashMap socket_map_;
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int64_t timeout_; // Time for next timeout.
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Dart_Port timeout_port_;
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int interrupt_fds_[2];
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};
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#endif // BIN_EVENTHANDLER_LINUX_H_
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