Kyoto Tycoon

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Public Member Functions
kyototycoon::Poller Class Reference

I/O event notification. More...

`#include <ktsocket.h>`

List of all members.

## Public Member Functions

| Poller ()
| Default constructor.
| ~Poller ()
| Destructor.
const char * | error ()
| Get the last happened error information.
bool | open ()
| Open the poller.
bool | close ()
| Close the poller.
bool | deposit (Pollable *event)
| Add a pollable I/O event to the monitored list.
bool | withdraw (Pollable *event)
| Remove a pollable I/O from the monitored list.
Pollable * | next ()
| Fetch the next notified I/O event.
bool | undo (Pollable *event)
| Enable the next notification of a pollable event.
bool | wait (double timeout=-1)
| Wait one or more notifying events.
bool | flush ()
| Notify all registered events.
int64_t | count ()
| Get the number of events to watch.
bool | abort ()
| Abort the current operation.

## Detailed Description

I/O event notification.

## Constructor & Destructor Documentation

kyototycoon::Poller::Poller | ( |  | ) | `[explicit]`

Default constructor.

kyototycoon::Poller::~Poller | ( |  | ) |

Destructor.

## Member Function Documentation

const char* kyototycoon::Poller::error | ( |  | ) |

Get the last happened error information.

Returns:
  the last happened error information.

bool kyototycoon::Poller::open | ( |  | ) |

Open the poller.

Returns:
  true on success, or false on failure.

bool kyototycoon::Poller::close | ( |  | ) |

Close the poller.

Returns:
  true on success, or false on failure.

bool kyototycoon::Poller::deposit | ( | Pollable * | event | ) |

Add a pollable I/O event to the monitored list.

Parameters:

  event | the pollable event object.

Returns:
  true on success, or false on failure.

bool kyototycoon::Poller::withdraw | ( | Pollable * | event | ) |

Remove a pollable I/O from the monitored list.

Parameters:

  event | the pollable event object.

Returns:
  true on success, or false on failure.

Pollable* kyototycoon::Poller::next | ( |  | ) |

Fetch the next notified I/O event.

Returns:
  the event object, or NULL on failure.

bool kyototycoon::Poller::undo | ( | Pollable * | event | ) |

Enable the next notification of a pollable event.

Parameters:

  event | the pollable event object.

Returns:
  true on success, or false on failure.

bool kyototycoon::Poller::wait | ( | double | timeout = `-1` | ) |

Wait one or more notifying events.

Parameters:

  timeout | the timeout in seconds. If it is not more than 0, no timeout is specified.

Returns:
  true on success, or false on failure.

bool kyototycoon::Poller::flush | ( |  | ) |

Notify all registered events.

Returns:
  true on success, or false on failure.

int64_t kyototycoon::Poller::count | ( |  | ) |

Get the number of events to watch.

Returns:
  the number of events to watch, or -1 on failure.

bool kyototycoon::Poller::abort | ( |  | ) |

Abort the current operation.

Returns:
  true on success, or false on failure.