/usr/include/postgresql/libpq-events.h is in libpq-dev 9.5.2-1.
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 | /*-------------------------------------------------------------------------
*
* libpq-events.h
* This file contains definitions that are useful to applications
* that invoke the libpq "events" API, but are not interesting to
* ordinary users of libpq.
*
* Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/interfaces/libpq/libpq-events.h
*
*-------------------------------------------------------------------------
*/
#ifndef LIBPQ_EVENTS_H
#define LIBPQ_EVENTS_H
#include "libpq-fe.h"
#ifdef __cplusplus
extern "C"
{
#endif
/* Callback Event Ids */
typedef enum
{
PGEVT_REGISTER,
PGEVT_CONNRESET,
PGEVT_CONNDESTROY,
PGEVT_RESULTCREATE,
PGEVT_RESULTCOPY,
PGEVT_RESULTDESTROY
} PGEventId;
typedef struct
{
PGconn *conn;
} PGEventRegister;
typedef struct
{
PGconn *conn;
} PGEventConnReset;
typedef struct
{
PGconn *conn;
} PGEventConnDestroy;
typedef struct
{
PGconn *conn;
PGresult *result;
} PGEventResultCreate;
typedef struct
{
const PGresult *src;
PGresult *dest;
} PGEventResultCopy;
typedef struct
{
PGresult *result;
} PGEventResultDestroy;
typedef int (*PGEventProc) (PGEventId evtId, void *evtInfo, void *passThrough);
/* Registers an event proc with the given PGconn. */
extern int PQregisterEventProc(PGconn *conn, PGEventProc proc,
const char *name, void *passThrough);
/* Sets the PGconn instance data for the provided proc to data. */
extern int PQsetInstanceData(PGconn *conn, PGEventProc proc, void *data);
/* Gets the PGconn instance data for the provided proc. */
extern void *PQinstanceData(const PGconn *conn, PGEventProc proc);
/* Sets the PGresult instance data for the provided proc to data. */
extern int PQresultSetInstanceData(PGresult *result, PGEventProc proc, void *data);
/* Gets the PGresult instance data for the provided proc. */
extern void *PQresultInstanceData(const PGresult *result, PGEventProc proc);
/* Fires RESULTCREATE events for an application-created PGresult. */
extern int PQfireResultCreateEvents(PGconn *conn, PGresult *res);
#ifdef __cplusplus
}
#endif
#endif /* LIBPQ_EVENTS_H */
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