77 lines
2.8 KiB
Swift
77 lines
2.8 KiB
Swift
// Poller.swift
|
|
//
|
|
// The MIT License (MIT)
|
|
//
|
|
// Copyright (c) 2015 Zewo
|
|
//
|
|
// 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.
|
|
|
|
import CZeroMQ
|
|
|
|
public struct PollEvent : OptionSet {
|
|
public let rawValue: Int16
|
|
|
|
public init(rawValue: Int16) {
|
|
self.rawValue = rawValue
|
|
}
|
|
|
|
public static let In = PollEvent(rawValue: Int16(ZMQ_POLLIN))
|
|
public static let Out = PollEvent(rawValue: Int16(ZMQ_POLLOUT))
|
|
public static let Error = PollEvent(rawValue: Int16(ZMQ_POLLERR))
|
|
// public static let Priority = PollEvent(rawValue: Int16(ZMQ_POLLPRI))
|
|
}
|
|
|
|
public enum PollItemEvent {
|
|
case socket(socket: UnsafeMutableRawPointer, events: PollEvent)
|
|
case fileDescriptor(fileDescriptor: Int32, events: PollEvent)
|
|
|
|
var pollItem: zmq_pollitem_t {
|
|
switch self {
|
|
case .socket(let socket, let events):
|
|
return zmq_pollitem_t(socket: socket, fd: 0, events: events.rawValue, revents: 0)
|
|
case .fileDescriptor(let fileDescriptor, let events):
|
|
return zmq_pollitem_t(socket: nil, fd: fileDescriptor, events: events.rawValue, revents: 0)
|
|
}
|
|
}
|
|
|
|
init(pollItem: zmq_pollitem_t) {
|
|
if pollItem.socket != nil {
|
|
self = .socket(
|
|
socket: pollItem.socket,
|
|
events: PollEvent(rawValue: pollItem.revents)
|
|
)
|
|
} else {
|
|
self = .fileDescriptor(
|
|
fileDescriptor: pollItem.fd,
|
|
events: PollEvent(rawValue: pollItem.revents)
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
public func poll(_ items: PollItemEvent..., timeout: Int) throws -> [PollItemEvent] {
|
|
var pollItems = items.map { $0.pollItem }
|
|
|
|
if zmq_poll(&pollItems, Int32(pollItems.count), timeout) == -1 {
|
|
throw ZeroMqError.lastError
|
|
}
|
|
|
|
return pollItems.map(PollItemEvent.init)
|
|
}
|