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/*-
* Copyright (c) 2008-2012 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
#ifndef __WIREDTIGER_EXT_H_
#define __WIREDTIGER_EXT_H_
#include <wiredtiger.h>
#if defined(__cplusplus)
extern "C" {
#endif
/*! @addtogroup wt_ext
* @{
*/
/*! Table of WiredTiger extension functions.
*
* This structure is used to avoid the need to link extension modules with the
* library.
*/
struct __wt_extension_api {
/* !!! To maintain backwards compatibility, this structure is append-only. */
/*! Put an error message on the WiredTiger error stream. */
void (*err_printf)(WT_SESSION *, const char *fmt, ...);
#define wiredtiger_err_printf wt_api->err_printf
/*! Allocate short-term use scratch memory. */
void *(*scr_alloc)(WT_SESSION *, size_t);
#define wiredtiger_scr_alloc wt_api->scr_alloc
/*! Free short-term use scratch memory. */
void (*scr_free)(WT_SESSION *, void *);
#define wiredtiger_scr_free wt_api->scr_free
};
/*! This global variable must appear in each extension module. */
extern WT_EXTENSION_API *wt_api;
/*! @} */
#if defined(__cplusplus)
}
#endif
#endif /* __WIREDTIGER_EXT_H_ */
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