/usr/include/GNUstep/EOControl/EOEvent.h is in libgnustep-dl2-dev 0.12.0-13.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | /* -*-objc-*-
   EOEvent.h
   Copyright (C) 2005 Free Software Foundation, Inc.
   Author: David Ayers <ayers@fsfe.org>
   Date: December 2005
   This file is part of the GNUstep Database Library.
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 3 of the License, or (at your option) any later version.
   This library 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
   Library General Public License for more details.
   You should have received a copy of the GNU Library General Public
   License along with this library; see the file COPYING.LIB.
   If not, write to the Free Software Foundation,
   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef	__EOControl_EOEvent_h__
#define	__EOControl_EOEvent_h__
#ifdef GNUSTEP
#include <Foundation/NSObject.h>
#else
#include <Foundation/Foundation.h>
#endif
#include <EOControl/EODefines.h>
GDL2CONTROL_EXPORT
NSString *EOEventGroupName;
typedef enum {
  EOBasicEventSignature
} EOEventSignatureType;
@class NSString;
@class NSArray;
@class NSDictionary;
@class NSCalendarDate;
/*
 * WARNING!!! This class is currently completely unimplemented.
 */
@interface EOEvent : NSObject
{
  id        _info;
  NSString *_type;
  double    _encountered;
  double    _duration;
  EOEvent  *_parent;
  EOEvent  *_child;
  EOEvent  *_next;
}
+ (NSDictionary *)eventTypeDescriptions;
- (NSString *)title;
- (void)markStartWithInfo: (id)info;
- (void)markAtomicWithInfo: (id)info;
- (void)markEnd;
- (void)setInfo: (id)info;
- (id)info;
- (void)setType: (NSString *)type;
- (NSString *)type;
- (NSArray *)subevents;
- (EOEvent *)parentEvent;
- (id)signatureOfType: (EOEventSignatureType)tag;
- (NSString *)comment;
- (NSCalendarDate *)startDate;
- (NSString *)displayComponentName;
- (int)duration;
- (int)durationWithoutSubevents;
+ (NSArray *)groupEvents: (NSArray *)events
       bySignatureOfType: (EOEventSignatureType)tag;
+ (NSArray *)aggregateEvents: (NSArray *)events
	   bySignatureOfType: (EOEventSignatureType)tag;
@end
#endif
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