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/*-------------------------------------------------------------------------
*
* Query cancellation support for frontend code
*
*
* Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/fe_utils/cancel.h
*
*-------------------------------------------------------------------------
*/
#ifndef CANCEL_H
#define CANCEL_H
#include <signal.h>
#include "libpq-fe.h"
extern PGDLLIMPORT volatile sig_atomic_t CancelRequested;
extern void SetCancelConn(PGconn *conn);
extern void ResetCancelConn(void);
/*
* A callback can be optionally set up to be called at cancellation
* time.
*/
extern void setup_cancel_handler(void (*query_cancel_callback) (void));
#endif /* CANCEL_H */
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