// Copyright 2012 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package ipv4 import ( "fmt" "net" "sync" "golang.org/x/net/internal/iana" "golang.org/x/net/internal/socket" ) type rawOpt struct { sync.RWMutex cflags ControlFlags } func (c *rawOpt) set(f ControlFlags) { c.cflags |= f } func (c *rawOpt) clear(f ControlFlags) { c.cflags &^= f } func (c *rawOpt) isset(f ControlFlags) bool { return c.cflags&f != 0 } type ControlFlags uint const ( FlagTTL ControlFlags = 1 << iota // pass the TTL on the received packet FlagSrc // pass the source address on the received packet FlagDst // pass the destination address on the received packet FlagInterface // pass the interface index on the received packet ) // A ControlMessage represents per packet basis IP-level socket options. type ControlMessage struct { // Receiving socket options: SetControlMessage allows to // receive the options from the protocol stack using ReadFrom // method of PacketConn or RawConn. // // Specifying socket options: ControlMessage for WriteTo // method of PacketConn or RawConn allows to send the options // to the protocol stack. // TTL int // time-to-live, receiving only Src net.IP // source address, specifying only Dst net.IP // destination address, receiving only IfIndex int // interface index, must be 1 <= value when specifying } func (cm *ControlMessage) String() string { if cm == nil { return "" } return fmt.Sprintf("ttl=%d src=%v dst=%v ifindex=%d", cm.TTL, cm.Src, cm.Dst, cm.IfIndex) } // Marshal returns the binary encoding of cm. func (cm *ControlMessage) Marshal() []byte { if cm == nil { return nil } var m socket.ControlMessage if ctlOpts[ctlPacketInfo].name > 0 && (cm.Src.To4() != nil || cm.IfIndex > 0) { m = socket.NewControlMessage([]int{ctlOpts[ctlPacketInfo].length}) } if len(m) > 0 { ctlOpts[ctlPacketInfo].marshal(m, cm) } return m } // Parse parses b as a control message and stores the result in cm. func (cm *ControlMessage) Parse(b []byte) error { ms, err := socket.ControlMessage(b).Parse() if err != nil { return err } for _, m := range ms { lvl, typ, l, err := m.ParseHeader() if err != nil { return err } if lvl != iana.ProtocolIP { continue } switch { case typ == ctlOpts[ctlTTL].name && l >= ctlOpts[ctlTTL].length: ctlOpts[ctlTTL].parse(cm, m.Data(l)) case typ == ctlOpts[ctlDst].name && l >= ctlOpts[ctlDst].length: ctlOpts[ctlDst].parse(cm, m.Data(l)) case typ == ctlOpts[ctlInterface].name && l >= ctlOpts[ctlInterface].length: ctlOpts[ctlInterface].parse(cm, m.Data(l)) case typ == ctlOpts[ctlPacketInfo].name && l >= ctlOpts[ctlPacketInfo].length: ctlOpts[ctlPacketInfo].parse(cm, m.Data(l)) } } return nil } // NewControlMessage returns a new control message. // // The returned message is large enough for options specified by cf. func NewControlMessage(cf ControlFlags) []byte { opt := rawOpt{cflags: cf} var l int if opt.isset(FlagTTL) && ctlOpts[ctlTTL].name > 0 { l += socket.ControlMessageSpace(ctlOpts[ctlTTL].length) } if ctlOpts[ctlPacketInfo].name > 0 { if opt.isset(FlagSrc | FlagDst | FlagInterface) { l += socket.ControlMessageSpace(ctlOpts[ctlPacketInfo].length) } } else { if opt.isset(FlagDst) && ctlOpts[ctlDst].name > 0 { l += socket.ControlMessageSpace(ctlOpts[ctlDst].length) } if opt.isset(FlagInterface) && ctlOpts[ctlInterface].name > 0 { l += socket.ControlMessageSpace(ctlOpts[ctlInterface].length) } } var b []byte if l > 0 { b = make([]byte, l) } return b } // Ancillary data socket options const ( ctlTTL = iota // header field ctlSrc // header field ctlDst // header field ctlInterface // inbound or outbound interface ctlPacketInfo // inbound or outbound packet path ctlMax ) // A ctlOpt represents a binding for ancillary data socket option. type ctlOpt struct { name int // option name, must be equal or greater than 1 length int // option length marshal func([]byte, *ControlMessage) []byte parse func(*ControlMessage, []byte) } option> Nextcloud server, a safe home for all your data: https://github.com/nextcloud/serverwww-data
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path: root/lib/private/Diagnostics/EventLogger.php
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<?php
/**
 * @copyright Copyright (c) 2016, ownCloud, Inc.
 *
 * @author Christoph Wurst <christoph@winzerhof-wurst.at>
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Piotr Mrówczyński <mrow4a@yahoo.com>
 * @author Robin Appelman <robin@icewind.nl>
 *
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program. If not, see <http://www.gnu.org/licenses/>
 *
 */
namespace OC\Diagnostics;

use OCP\Diagnostics\IEventLogger;

class EventLogger implements IEventLogger {
	/**
	 * @var \OC\Diagnostics\Event[]
	 */
	private $events = [];
	
	/**
	 * @var bool - Module needs to be activated by some app
	 */
	private $activated = false;

	/**
	 * @inheritdoc
	 */
	public function start($id, $description) {
		if ($this->activated) {
			$this->events[$id] = new Event($id, $description, microtime(true));
		}
	}

	/**
	 * @inheritdoc
	 */
	public function end($id) {
		if ($this->activated && isset($this->events[$id])) {
			$timing = $this->events[$id];
			$timing->end(microtime(true));
		}
	}

	/**
	 * @inheritdoc
	 */
	public function log($id, $description, $start, $end) {
		if ($this->activated) {
			$this->events[$id] = new Event($id, $description, $start);
			$this->events[$id]->end($end);
		}
	}

	/**
	 * @inheritdoc
	 */
	public function getEvents() {
		return $this->events;
	}
	
	/**
	 * @inheritdoc
	 */
	public function activate() {
		$this->activated = true;
	}
}
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