/usr/include/pi-sync.h is in libpisock-dev 0.12.5-dfsg-2+b3.
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 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | /*
 * $Id: pi-sync.h,v 1.20 2006/10/17 13:24:07 desrod Exp $
 *
 * pi-sync.h: Header for generic synchronization algorithm
 *
 * Copyright (c) 2000-2001, Ximian Inc.
 *
 * Author: JP Rosevear <jpr@helixcode.com> 
 *
 * 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 2 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; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
#ifndef _PILOT_SYNC_H_
#define _PILOT_SYNC_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "pi-macros.h"
	typedef struct _SyncHandler SyncHandler;
	typedef struct _DesktopRecord DesktopRecord;
	typedef struct _PilotRecord PilotRecord;
	struct _DesktopRecord {
		int recID;
		int catID;
		int flags;
	};
	struct _PilotRecord {
		recordid_t recID;
		int catID;
		int flags;
		void *buffer;
		size_t len;
	};
	struct _SyncHandler {
		int sd;
		char *name;
		int secret;
		void *data;
		int (*Pre) (SyncHandler *, int dbhandle, int *slow);
		int (*Post) (SyncHandler *, int dbhandle);
		int (*SetPilotID) (SyncHandler *, DesktopRecord *,
				   recordid_t);
		int (*SetStatusCleared) (SyncHandler *, DesktopRecord *);
		int (*ForEach) (SyncHandler *, DesktopRecord **);
		int (*ForEachModified) (SyncHandler *, DesktopRecord **);
		int (*Compare) (SyncHandler *, PilotRecord *,
				DesktopRecord *);
		int (*AddRecord) (SyncHandler *, PilotRecord *);
		int (*ReplaceRecord) (SyncHandler *, DesktopRecord *,
				      PilotRecord *);
		int (*DeleteRecord) (SyncHandler *, DesktopRecord *);
		int (*ArchiveRecord) (SyncHandler *, DesktopRecord *,
				      int archive);
		int (*Match) (SyncHandler *, PilotRecord *,
			      DesktopRecord **);
		int (*FreeMatch) (SyncHandler *, DesktopRecord *);
		int (*Prepare) (SyncHandler *, DesktopRecord *,
				PilotRecord *);
	};
	PilotRecord *sync_NewPilotRecord(int buf_size);
	PilotRecord *sync_CopyPilotRecord(const PilotRecord * precord);
	void sync_FreePilotRecord(PilotRecord * precord);
	DesktopRecord *sync_NewDesktopRecord(void);
	DesktopRecord *sync_CopyDesktopRecord(const DesktopRecord *
					      drecord);
	void sync_FreeDesktopRecord(DesktopRecord * drecord);
	int sync_CopyToPilot(SyncHandler * sh);
	int sync_CopyFromPilot(SyncHandler * sh);
	int sync_MergeToPilot(SyncHandler * sh);
	int sync_MergeFromPilot(SyncHandler * sh);
	int sync_Synchronize(SyncHandler * sh);
#ifdef __cplusplus
}
#endif
#endif
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