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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/db/recno/rec_close.c	Lines:	0	57	0.0 %
Date:	2017-11-07	Branches:	0	44	0.0 %


/*	$OpenBSD: rec_close.c,v 1.13 2016/09/21 04:38:56 guenther Exp $	*/

/*-
 * Copyright (c) 1990, 1993, 1994
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/types.h>
#include <sys/uio.h>
#include <sys/mman.h>

#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <unistd.h>

#include <db.h>
#include "recno.h"

/*
 * __REC_CLOSE -- Close a recno tree.
 *
 * Parameters:
 *	dbp:	pointer to access method
 *
 * Returns:
 *	RET_ERROR, RET_SUCCESS
 */
int
__rec_close(DB *dbp)
{
	BTREE *t;
	int status;

	t = dbp->internal;

	/* Toss any page pinned across calls. */
	if (t->bt_pinned != NULL) {
		mpool_put(t->bt_mp, t->bt_pinned, 0);
		t->bt_pinned = NULL;
	}

	if (__rec_sync(dbp, 0) == RET_ERROR)
		return (RET_ERROR);

	/* Committed to closing. */
	status = RET_SUCCESS;

	if (!F_ISSET(t, R_INMEM)) {
		if (F_ISSET(t, R_CLOSEFP)) {
			if (fclose(t->bt_rfp))
				status = RET_ERROR;
		} else {
			if (close(t->bt_rfd))
				status = RET_ERROR;
		}
	}

	if (__bt_close(dbp) == RET_ERROR)
		status = RET_ERROR;

	return (status);
}

/*
 * __REC_SYNC -- sync the recno tree to disk.
 *
 * Parameters:
 *	dbp:	pointer to access method
 *
 * Returns:
 *	RET_SUCCESS, RET_ERROR.
 */
int
__rec_sync(const DB *dbp, u_int flags)
{
	struct iovec iov[2];
	BTREE *t;
	DBT data, key;
	off_t off;
	recno_t scursor, trec;
	int status;

	t = dbp->internal;

	/* Toss any page pinned across calls. */
	if (t->bt_pinned != NULL) {
		mpool_put(t->bt_mp, t->bt_pinned, 0);
		t->bt_pinned = NULL;
	}

	if (flags == R_RECNOSYNC)
		return (__bt_sync(dbp, 0));

	if (F_ISSET(t, R_RDONLY | R_INMEM) || !F_ISSET(t, R_MODIFIED))
		return (RET_SUCCESS);

	/* Read any remaining records into the tree. */
	if (!F_ISSET(t, R_EOF) && t->bt_irec(t, MAX_REC_NUMBER) == RET_ERROR)
		return (RET_ERROR);

	/* Rewind the file descriptor. */
	if (lseek(t->bt_rfd, 0, SEEK_SET) != 0)
		return (RET_ERROR);

	/* Save the cursor. */
	scursor = t->bt_cursor.rcursor;

	key.size = sizeof(recno_t);
	key.data = &trec;

	if (F_ISSET(t, R_FIXLEN)) {
		/*
		 * We assume that fixed length records are all fixed length.
		 * Any that aren't are either EINVAL'd or corrected by the
		 * record put code.
		 */
		status = (dbp->seq)(dbp, &key, &data, R_FIRST);
		while (status == RET_SUCCESS) {
			if (write(t->bt_rfd, data.data, data.size) != data.size)
				return (RET_ERROR);
			status = (dbp->seq)(dbp, &key, &data, R_NEXT);
		}
	} else {
		iov[1].iov_base = &t->bt_bval;
		iov[1].iov_len = 1;

		status = (dbp->seq)(dbp, &key, &data, R_FIRST);
		while (status == RET_SUCCESS) {
			iov[0].iov_base = data.data;
			iov[0].iov_len = data.size;
			if (writev(t->bt_rfd, iov, 2) != data.size + 1)
				return (RET_ERROR);
			status = (dbp->seq)(dbp, &key, &data, R_NEXT);
		}
	}

	/* Restore the cursor. */
	t->bt_cursor.rcursor = scursor;

	if (status == RET_ERROR)
		return (RET_ERROR);
	if ((off = lseek(t->bt_rfd, 0, SEEK_CUR)) == -1)
		return (RET_ERROR);
	if (ftruncate(t->bt_rfd, off))
		return (RET_ERROR);
	F_CLR(t, R_MODIFIED);
	return (RET_SUCCESS);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: rec_close.c,v 1.13 2016/09/21 04:38:56 guenther Exp $ */
2
3			/*-
4			* Copyright (c) 1990, 1993, 1994
5			* The Regents of the University of California. All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that the following conditions
9			* are met:
10			* 1. Redistributions of source code must retain the above copyright
11			* notice, this list of conditions and the following disclaimer.
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in the
14			* documentation and/or other materials provided with the distribution.
15			* 3. Neither the name of the University nor the names of its contributors
16			* may be used to endorse or promote products derived from this software
17			* without specific prior written permission.
18			*
19			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29			* SUCH DAMAGE.
30			*/
31
32			#include <sys/types.h>
33			#include <sys/uio.h>
34			#include <sys/mman.h>
35
36			#include <errno.h>
37			#include <limits.h>
38			#include <stdio.h>
39			#include <unistd.h>
40
41			#include <db.h>
42			#include "recno.h"
43
44			/*
45			* __REC_CLOSE -- Close a recno tree.
46			*
47			* Parameters:
48			* dbp: pointer to access method
49			*
50			* Returns:
51			* RET_ERROR, RET_SUCCESS
52			*/
53			int
54			__rec_close(DB *dbp)
55			{
56			BTREE *t;
57			int status;
58
59			t = dbp->internal;
60
61			/* Toss any page pinned across calls. */
62			if (t->bt_pinned != NULL) {
63			mpool_put(t->bt_mp, t->bt_pinned, 0);
64			t->bt_pinned = NULL;
65			}
66
67			if (__rec_sync(dbp, 0) == RET_ERROR)
68			return (RET_ERROR);
69
70			/* Committed to closing. */
71			status = RET_SUCCESS;
72
73			if (!F_ISSET(t, R_INMEM)) {
74			if (F_ISSET(t, R_CLOSEFP)) {
75			if (fclose(t->bt_rfp))
76			status = RET_ERROR;
77			} else {
78			if (close(t->bt_rfd))
79			status = RET_ERROR;
80			}
81			}
82
83			if (__bt_close(dbp) == RET_ERROR)
84			status = RET_ERROR;
85
86			return (status);
87			}
88
89			/*
90			* __REC_SYNC -- sync the recno tree to disk.
91			*
92			* Parameters:
93			* dbp: pointer to access method
94			*
95			* Returns:
96			* RET_SUCCESS, RET_ERROR.
97			*/
98			int
99			__rec_sync(const DB *dbp, u_int flags)
100			{
101			struct iovec iov[2];
102			BTREE *t;
103			DBT data, key;
104			off_t off;
105			recno_t scursor, trec;
106			int status;
107
108			t = dbp->internal;
109
110			/* Toss any page pinned across calls. */
111			if (t->bt_pinned != NULL) {
112			mpool_put(t->bt_mp, t->bt_pinned, 0);
113			t->bt_pinned = NULL;
114			}
115
116			if (flags == R_RECNOSYNC)
117			return (__bt_sync(dbp, 0));
118
119			if (F_ISSET(t, R_RDONLY \| R_INMEM) \|\| !F_ISSET(t, R_MODIFIED))
120			return (RET_SUCCESS);
121
122			/* Read any remaining records into the tree. */
123			if (!F_ISSET(t, R_EOF) && t->bt_irec(t, MAX_REC_NUMBER) == RET_ERROR)
124			return (RET_ERROR);
125
126			/* Rewind the file descriptor. */
127			if (lseek(t->bt_rfd, 0, SEEK_SET) != 0)
128			return (RET_ERROR);
129
130			/* Save the cursor. */
131			scursor = t->bt_cursor.rcursor;
132
133			key.size = sizeof(recno_t);
134			key.data = &trec;
135
136			if (F_ISSET(t, R_FIXLEN)) {
137			/*
138			* We assume that fixed length records are all fixed length.
139			* Any that aren't are either EINVAL'd or corrected by the
140			* record put code.
141			*/
142			status = (dbp->seq)(dbp, &key, &data, R_FIRST);
143			while (status == RET_SUCCESS) {
144			if (write(t->bt_rfd, data.data, data.size) != data.size)
145			return (RET_ERROR);
146			status = (dbp->seq)(dbp, &key, &data, R_NEXT);
147			}
148			} else {
149			iov[1].iov_base = &t->bt_bval;
150			iov[1].iov_len = 1;
151
152			status = (dbp->seq)(dbp, &key, &data, R_FIRST);
153			while (status == RET_SUCCESS) {
154			iov[0].iov_base = data.data;
155			iov[0].iov_len = data.size;
156			if (writev(t->bt_rfd, iov, 2) != data.size + 1)
157			return (RET_ERROR);
158			status = (dbp->seq)(dbp, &key, &data, R_NEXT);
159			}
160			}
161
162			/* Restore the cursor. */
163			t->bt_cursor.rcursor = scursor;
164
165			if (status == RET_ERROR)
166			return (RET_ERROR);
167			if ((off = lseek(t->bt_rfd, 0, SEEK_CUR)) == -1)
168			return (RET_ERROR);
169			if (ftruncate(t->bt_rfd, off))
170			return (RET_ERROR);
171			F_CLR(t, R_MODIFIED);
172			return (RET_SUCCESS);
173			}