/**************************************************************/

/*  tpax: a topological pax implementation                    */

/*  Copyright (C) 2020--2024  SysDeer Technologies, LLC       */

/*  Released under GPLv2 and GPLv3; see COPYING.TPAX.         */

/**************************************************************/

#include <stdint.h>

#include <stdlib.h>

#include <sys/mman.h>

#include <tpax/tpax.h>

#include "tpax_driver_impl.h"

/**********************************************/

/* release and reset the following objects:   */

/*                                            */

/* - item queue                               */

/* - queue vector                             */

/* - cached prefixes                          */

/* - prefix vector                            */

/*                                            */

/**********************************************/

int tpax_archive_reset(const struct tpax_driver_ctx * dctx)

{

	struct tpax_driver_ctx_impl *   ictx;

	void *                          next;

	size_t                          size;

	char **                         ppref;

	ictx = tpax_get_driver_ictx(dctx);

	for (; ictx->dirents; ) {

		next = ictx->dirents->next;

		size = ictx->dirents->size;

		munmap(ictx->dirents,size);

		ictx->dirents = (struct tpax_dirent_buffer *)next;

	}

	for (ppref=ictx->prefixv; *ppref; ppref++)

		free(*ppref);

	for (ppref=ictx->prefptr; ppref<ictx->prefcap; ppref++)

		*ppref = 0;

	if (ictx->prefixv != ictx->prefptr)

		free(ictx->prefixv);

	if (ictx->direntv)

		free(ictx->direntv);

	ictx->nqueued = 0;

	ictx->dirents = 0;

	ictx->direntv = 0;

	ictx->prefixv = ictx->prefptr;

	return 0;

}