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files >> //proc/thread-self/root/proc/thread-self/root/usr/include/libpq-events.h
/*------------------------------------------------------------------------- * * 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) 1996-2020, 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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