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/*-------------------------------------------------------------------------
*
* pgtclId.h
*
* Contains Tcl "channel" interface routines, plus useful routines
* to convert between strings and pointers. These are needed because
* everything in Tcl is a string, but in C, pointers to data structures
* are needed.
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: pgtclId.h,v 1.16 2001/01/24 19:43:29 momjian Exp $
*
*-------------------------------------------------------------------------
*/
extern void PgSetConnectionId(Tcl_Interp *interp, PGconn *conn);
#if TCL_MAJOR_VERSION == 7 && TCL_MINOR_VERSION == 5
/* Only Tcl 7.5 had drivers with this signature */
#define DRIVER_DEL_PROTO ClientData cData, Tcl_Interp *interp, \
Tcl_File inFile, Tcl_File outFile
#define DRIVER_OUTPUT_PROTO ClientData cData, Tcl_File outFile, char *buf, \
int bufSize, int *errorCodePtr
#define DRIVER_INPUT_PROTO ClientData cData, Tcl_File inFile, char *buf, \
int bufSize, int *errorCodePtr
#else
/* Tcl 7.6 and beyond use this signature */
#define DRIVER_OUTPUT_PROTO ClientData cData, char *buf, int bufSize, \
int *errorCodePtr
#define DRIVER_INPUT_PROTO ClientData cData, char *buf, int bufSize, \
int *errorCodePtr
#define DRIVER_DEL_PROTO ClientData cData, Tcl_Interp *interp
#endif
extern PGconn *PgGetConnectionId(Tcl_Interp *interp, char *id,
Pg_ConnectionId **);
extern int PgDelConnectionId(DRIVER_DEL_PROTO);
extern int PgOutputProc(DRIVER_OUTPUT_PROTO);
extern int PgInputProc(DRIVER_INPUT_PROTO);
extern int PgSetResultId(Tcl_Interp *interp, char *connid, PGresult *res);
extern PGresult *PgGetResultId(Tcl_Interp *interp, char *id);
extern void PgDelResultId(Tcl_Interp *interp, char *id);
extern int PgGetConnByResultId(Tcl_Interp *interp, char *resid);
extern void PgStartNotifyEventSource(Pg_ConnectionId * connid);
extern void PgStopNotifyEventSource(Pg_ConnectionId * connid);
extern void PgNotifyTransferEvents(Pg_ConnectionId * connid);
extern void PgNotifyInterpDelete(ClientData clientData, Tcl_Interp *interp);
/* GetFileProc is needed in Tcl 7.6 *only* ... it went away again in 8.0 */
#if TCL_MAJOR_VERSION == 7 && TCL_MINOR_VERSION >= 6
#define HAVE_TCL_GETFILEPROC 1
#else
#define HAVE_TCL_GETFILEPROC 0
#endif
#if HAVE_TCL_GETFILEPROC
extern Tcl_File PgGetFileProc(ClientData cData, int direction);
#endif
extern Tcl_ChannelType Pg_ConnType;
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