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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#ifndef BIN_EVENTHANDLER_LINUX_H_
#define BIN_EVENTHANDLER_LINUX_H_
#if !defined(BIN_EVENTHANDLER_H_)
#error Do not include eventhandler_linux.h directly; use eventhandler.h instead.
#endif
#include <errno.h>
#include <sys/epoll.h>
#include <sys/socket.h>
#include <unistd.h>
#include "platform/hashmap.h"
#include "platform/signal_blocker.h"
namespace dart {
namespace bin {
class DescriptorInfo : public DescriptorInfoBase {
public:
explicit DescriptorInfo(intptr_t fd) : DescriptorInfoBase(fd) { }
virtual ~DescriptorInfo() { }
intptr_t GetPollEvents();
virtual void Close() {
VOID_TEMP_FAILURE_RETRY(close(fd_));
fd_ = -1;
}
};
class DescriptorInfoSingle
: public DescriptorInfoSingleMixin<DescriptorInfo> {
public:
explicit DescriptorInfoSingle(intptr_t fd)
: DescriptorInfoSingleMixin(fd, false) {}
virtual ~DescriptorInfoSingle() {}
};
class DescriptorInfoMultiple
: public DescriptorInfoMultipleMixin<DescriptorInfo> {
public:
explicit DescriptorInfoMultiple(intptr_t fd)
: DescriptorInfoMultipleMixin(fd, false) {}
virtual ~DescriptorInfoMultiple() {}
};
class EventHandlerImplementation {
public:
EventHandlerImplementation();
~EventHandlerImplementation();
void UpdateEpollInstance(intptr_t old_mask, DescriptorInfo *di);
// Gets the socket data structure for a given file
// descriptor. Creates a new one if one is not found.
DescriptorInfo* GetDescriptorInfo(intptr_t fd, bool is_listening);
void SendData(intptr_t id, Dart_Port dart_port, int64_t data);
void Start(EventHandler* handler);
void Shutdown();
private:
void HandleEvents(struct epoll_event* events, int size);
static void Poll(uword args);
void WakeupHandler(intptr_t id, Dart_Port dart_port, int64_t data);
void HandleInterruptFd();
void SetPort(intptr_t fd, Dart_Port dart_port, intptr_t mask);
intptr_t GetPollEvents(intptr_t events, DescriptorInfo* di);
static void* GetHashmapKeyFromFd(intptr_t fd);
static uint32_t GetHashmapHashFromFd(intptr_t fd);
HashMap socket_map_;
TimeoutQueue timeout_queue_;
bool shutdown_;
int interrupt_fds_[2];
int epoll_fd_;
int timer_fd_;
};
} // namespace bin
} // namespace dart
#endif // BIN_EVENTHANDLER_LINUX_H_