1 files changed, 0 insertions, 330 deletions

diff --git a/db2/log/log_get.c b/db2/log/log_get.c
deleted file mode 100644
index de81519a7c..0000000000
--- a/db2/log/log_get.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1996, 1997, 1998
- *	Sleepycat Software.  All rights reserved.
- */
-#include "config.h"
-
-#ifndef lint
-static const char sccsid[] = "@(#)log_get.c	10.38 (Sleepycat) 10/3/98";
-#endif /* not lint */
-
-#ifndef NO_SYSTEM_INCLUDES
-#include <sys/types.h>
-
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-#endif
-
-#include "db_int.h"
-#include "shqueue.h"
-#include "db_page.h"
-#include "log.h"
-#include "hash.h"
-#include "common_ext.h"
-
-/*
- * log_get --
- *	Get a log record.
- */
-int
-log_get(dblp, alsn, dbt, flags)
-	DB_LOG *dblp;
-	DB_LSN *alsn;
-	DBT *dbt;
-	u_int32_t flags;
-{
-	int ret;
-
-	LOG_PANIC_CHECK(dblp);
-
-	/* Validate arguments. */
-	if (flags != DB_CHECKPOINT && flags != DB_CURRENT &&
-	    flags != DB_FIRST && flags != DB_LAST &&
-	    flags != DB_NEXT && flags != DB_PREV && flags != DB_SET)
-		return (__db_ferr(dblp->dbenv, "log_get", 1));
-
-	if (F_ISSET(dblp, DB_AM_THREAD)) {
-		if (flags == DB_NEXT || flags == DB_PREV || flags == DB_CURRENT)
-			return (__db_ferr(dblp->dbenv, "log_get", 1));
-		if (!F_ISSET(dbt, DB_DBT_USERMEM | DB_DBT_MALLOC))
-			return (__db_ferr(dblp->dbenv, "threaded data", 1));
-	}
-
-	LOCK_LOGREGION(dblp);
-
-	/*
-	 * If we get one of the log's header records, repeat the operation.
-	 * This assumes that applications don't ever request the log header
-	 * records by LSN, but that seems reasonable to me.
-	 */
-	ret = __log_get(dblp, alsn, dbt, flags, 0);
-	if (ret == 0 && alsn->offset == 0) {
-		switch (flags) {
-		case DB_FIRST:
-			flags = DB_NEXT;
-			break;
-		case DB_LAST:
-			flags = DB_PREV;
-			break;
-		}
-		ret = __log_get(dblp, alsn, dbt, flags, 0);
-	}
-
-	UNLOCK_LOGREGION(dblp);
-
-	return (ret);
-}
-
-/*
- * __log_get --
- *	Get a log record; internal version.
- *
- * PUBLIC: int __log_get __P((DB_LOG *, DB_LSN *, DBT *, u_int32_t, int));
- */
-int
-__log_get(dblp, alsn, dbt, flags, silent)
-	DB_LOG *dblp;
-	DB_LSN *alsn;
-	DBT *dbt;
-	u_int32_t flags;
-	int silent;
-{
-	DB_LSN nlsn;
-	HDR hdr;
-	LOG *lp;
-	size_t len;
-	ssize_t nr;
-	int cnt, ret;
-	char *np, *tbuf;
-	const char *fail;
-	void *p, *shortp;
-
-	lp = dblp->lp;
-	fail = np = tbuf = NULL;
-
-	nlsn = dblp->c_lsn;
-	switch (flags) {
-	case DB_CHECKPOINT:
-		nlsn = lp->chkpt_lsn;
-		if (IS_ZERO_LSN(nlsn)) {
-			__db_err(dblp->dbenv,
-	"log_get: unable to find checkpoint record: no checkpoint set.");
-			ret = ENOENT;
-			goto err2;
-		}
-		break;
-	case DB_NEXT:				/* Next log record. */
-		if (!IS_ZERO_LSN(nlsn)) {
-			/* Increment the cursor by the cursor record size. */
-			nlsn.offset += dblp->c_len;
-			break;
-		}
-		/* FALLTHROUGH */
-	case DB_FIRST:				/* Find the first log record. */
-		/* Find the first log file. */
-		if ((ret = __log_find(dblp, 1, &cnt)) != 0)
-			goto err2;
-
-		/*
-		 * We may have only entered records in the buffer, and not
-		 * yet written a log file.  If no log files were found and
-		 * there's anything in the buffer, it belongs to file 1.
-		 */
-		if (cnt == 0)
-			cnt = 1;
-
-		nlsn.file = cnt;
-		nlsn.offset = 0;
-		break;
-	case DB_CURRENT:			/* Current log record. */
-		break;
-	case DB_PREV:				/* Previous log record. */
-		if (!IS_ZERO_LSN(nlsn)) {
-			/* If at start-of-file, move to the previous file. */
-			if (nlsn.offset == 0) {
-				if (nlsn.file == 1 ||
-				    __log_valid(dblp, nlsn.file - 1, 0) != 0)
-					return (DB_NOTFOUND);
-
-				--nlsn.file;
-				nlsn.offset = dblp->c_off;
-			} else
-				nlsn.offset = dblp->c_off;
-			break;
-		}
-		/* FALLTHROUGH */
-	case DB_LAST:				/* Last log record. */
-		nlsn.file = lp->lsn.file;
-		nlsn.offset = lp->lsn.offset - lp->len;
-		break;
-	case DB_SET:				/* Set log record. */
-		nlsn = *alsn;
-		break;
-	}
-
-retry:
-	/* Return 1 if the request is past end-of-file. */
-	if (nlsn.file > lp->lsn.file ||
-	    (nlsn.file == lp->lsn.file && nlsn.offset >= lp->lsn.offset))
-		return (DB_NOTFOUND);
-
-	/* If we've switched files, discard the current fd. */
-	if (dblp->c_lsn.file != nlsn.file && dblp->c_fd != -1) {
-		(void)__os_close(dblp->c_fd);
-		dblp->c_fd = -1;
-	}
-
-	/* If the entire record is in the in-memory buffer, copy it out. */
-	if (nlsn.file == lp->lsn.file && nlsn.offset >= lp->w_off) {
-		/* Copy the header. */
-		p = lp->buf + (nlsn.offset - lp->w_off);
-		memcpy(&hdr, p, sizeof(HDR));
-
-		/* Copy the record. */
-		len = hdr.len - sizeof(HDR);
-		if ((ret = __db_retcopy(dbt, (u_int8_t *)p + sizeof(HDR),
-		    len, &dblp->c_dbt.data, &dblp->c_dbt.ulen, NULL)) != 0)
-			goto err1;
-		goto cksum;
-	}
-
-	/* Acquire a file descriptor. */
-	if (dblp->c_fd == -1) {
-		if ((ret = __log_name(dblp, nlsn.file,
-		    &np, &dblp->c_fd, DB_RDONLY | DB_SEQUENTIAL)) != 0) {
-			fail = np;
-			goto err1;
-		}
-		__os_freestr(np);
-		np = NULL;
-	}
-
-	/* Seek to the header offset and read the header. */
-	if ((ret =
-	    __os_seek(dblp->c_fd, 0, 0, nlsn.offset, 0, SEEK_SET)) != 0) {
-		fail = "seek";
-		goto err1;
-	}
-	if ((ret = __os_read(dblp->c_fd, &hdr, sizeof(HDR), &nr)) != 0) {
-		fail = "read";
-		goto err1;
-	}
-	if (nr == sizeof(HDR))
-		shortp = NULL;
-	else {
-		/* If read returns EOF, try the next file. */
-		if (nr == 0) {
-			if (flags != DB_NEXT || nlsn.file == lp->lsn.file)
-				goto corrupt;
-
-			/* Move to the next file. */
-			++nlsn.file;
-			nlsn.offset = 0;
-			goto retry;
-		}
-
-		/*
-		 * If read returns a short count the rest of the record has
-		 * to be in the in-memory buffer.
-		 */
-		if (lp->b_off < sizeof(HDR) - nr)
-			goto corrupt;
-
-		/* Get the rest of the header from the in-memory buffer. */
-		memcpy((u_int8_t *)&hdr + nr, lp->buf, sizeof(HDR) - nr);
-		shortp = lp->buf + (sizeof(HDR) - nr);
-	}
-
-	/*
-	 * Check for buffers of 0's, that's what we usually see during
-	 * recovery, although it's certainly not something on which we
-	 * can depend.
-	 */
-	if (hdr.len <= sizeof(HDR))
-		goto corrupt;
-	len = hdr.len - sizeof(HDR);
-
-	/* If we've already moved to the in-memory buffer, fill from there. */
-	if (shortp != NULL) {
-		if (lp->b_off < ((u_int8_t *)shortp - lp->buf) + len)
-			goto corrupt;
-		if ((ret = __db_retcopy(dbt, shortp, len,
-		    &dblp->c_dbt.data, &dblp->c_dbt.ulen, NULL)) != 0)
-			goto err1;
-		goto cksum;
-	}
-
-	/*
-	 * Allocate temporary memory to hold the record.
-	 *
-	 * XXX
-	 * We're calling malloc(3) with a region locked.  This isn't
-	 * a good idea.
-	 */
-	if ((ret = __os_malloc(len, NULL, &tbuf)) != 0)
-		goto err1;
-
-	/*
-	 * Read the record into the buffer.  If read returns a short count,
-	 * there was an error or the rest of the record is in the in-memory
-	 * buffer.  Note, the information may be garbage if we're in recovery,
-	 * so don't read past the end of the buffer's memory.
-	 */
-	if ((ret = __os_read(dblp->c_fd, tbuf, len, &nr)) != 0) {
-		fail = "read";
-		goto err1;
-	}
-	if (len - nr > sizeof(lp->buf))
-		goto corrupt;
-	if (nr != (ssize_t)len) {
-		if (lp->b_off < len - nr)
-			goto corrupt;
-
-		/* Get the rest of the record from the in-memory buffer. */
-		memcpy((u_int8_t *)tbuf + nr, lp->buf, len - nr);
-	}
-
-	/* Copy the record into the user's DBT. */
-	if ((ret = __db_retcopy(dbt, tbuf, len,
-	    &dblp->c_dbt.data, &dblp->c_dbt.ulen, NULL)) != 0)
-		goto err1;
-	__os_free(tbuf, 0);
-	tbuf = NULL;
-
-cksum:	if (hdr.cksum != __ham_func4(dbt->data, dbt->size)) {
-		if (!silent)
-			__db_err(dblp->dbenv, "log_get: checksum mismatch");
-		goto corrupt;
-	}
-
-	/* Update the cursor and the return lsn. */
-	dblp->c_off = hdr.prev;
-	dblp->c_len = hdr.len;
-	dblp->c_lsn = *alsn = nlsn;
-
-	return (0);
-
-corrupt:/*
-	 * This is the catchall -- for some reason we didn't find enough
-	 * information or it wasn't reasonable information, and it wasn't
-	 * because a system call failed.
-	 */
-	ret = EIO;
-	fail = "read";
-
-err1:	if (!silent) {
-		if (fail == NULL)
-			__db_err(dblp->dbenv, "log_get: %s", strerror(ret));
-		else
-			__db_err(dblp->dbenv,
-			    "log_get: %s: %s", fail, strerror(ret));
-	}
-err2:	if (np != NULL)
-		__os_freestr(np);
-	if (tbuf != NULL)
-		__os_free(tbuf, 0);
-	return (ret);
-}