codekingpro/portable-devtools

1/*-------------------------------------------------------------------------2 *3 * Query cancellation support for frontend code4 *5 *6 * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group7 * Portions Copyright (c) 1994, Regents of the University of California8 *9 * src/include/fe_utils/cancel.h10 *11 *-------------------------------------------------------------------------12 */13 14#ifndef CANCEL_H15#define CANCEL_H16 17#include <signal.h>18 19#include "libpq-fe.h"20 21extern PGDLLIMPORT volatile sig_atomic_t CancelRequested;22 23extern void SetCancelConn(PGconn *conn);24extern void ResetCancelConn(void);25 26/*27 * A callback can be optionally set up to be called at cancellation28 * time.29 */30extern void setup_cancel_handler(void (*query_cancel_callback) (void));31 32#endif							/* CANCEL_H */33