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authorKen Raeburn <raeburn@mit.edu>2005-10-04 23:38:37 +0000
committerKen Raeburn <raeburn@mit.edu>2005-10-04 23:38:37 +0000
commit745cddfcd791359ff5ae5c2f33db3b196f6df481 (patch)
tree4a5081d158f5f0e3ec784b1c2190d9870dceaa41 /src/util/db2/mpool/mpool.h
parenta6759444a5cc94637576e92cf425efda13a791ea (diff)
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Move the db2 library to the site of its one use, the kdb-db2 module.
Update configuration scripts, pathname make variables, etc., accordingly. git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@17407 dc483132-0cff-0310-8789-dd5450dbe970
Diffstat (limited to 'src/util/db2/mpool/mpool.h')
-rw-r--r--src/util/db2/mpool/mpool.h117
1 files changed, 0 insertions, 117 deletions
diff --git a/src/util/db2/mpool/mpool.h b/src/util/db2/mpool/mpool.h
deleted file mode 100644
index 627ad5b36..000000000
--- a/src/util/db2/mpool/mpool.h
+++ /dev/null
@@ -1,117 +0,0 @@
-/*-
- * Copyright (c) 1991, 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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.
- *
- * @(#)mpool.h 8.4 (Berkeley) 11/2/95
- */
-
-#include "db-queue.h"
-
-/*
- * The memory pool scheme is a simple one. Each in-memory page is referenced
- * by a bucket which is threaded in up to two of three ways. All active pages
- * are threaded on a hash chain (hashed by page number) and an lru chain.
- * Inactive pages are threaded on a free chain. Each reference to a memory
- * pool is handed an opaque MPOOL cookie which stores all of this information.
- */
-#define HASHSIZE 128
-#define HASHKEY(pgno) ((pgno - 1) % HASHSIZE)
-
-/* The BKT structures are the elements of the queues. */
-typedef struct _bkt {
- CIRCLEQ_ENTRY(_bkt) hq; /* hash queue */
- CIRCLEQ_ENTRY(_bkt) q; /* lru queue */
- void *page; /* page */
- db_pgno_t pgno; /* page number */
-
-#define MPOOL_DIRTY 0x01 /* page needs to be written */
-#define MPOOL_PINNED 0x02 /* page is pinned into memory */
-#define MPOOL_INUSE 0x04 /* page address is valid */
- u_int8_t flags; /* flags */
-} BKT;
-
-typedef struct MPOOL {
- CIRCLEQ_HEAD(_lqh, _bkt) lqh; /* lru queue head */
- /* hash queue array */
- CIRCLEQ_HEAD(_hqh, _bkt) hqh[HASHSIZE];
- db_pgno_t curcache; /* current number of cached pages */
- db_pgno_t maxcache; /* max number of cached pages */
- db_pgno_t npages; /* number of pages in the file */
- u_long pagesize; /* file page size */
- int fd; /* file descriptor */
- /* page in conversion routine */
- void (*pgin) __P((void *, db_pgno_t, void *));
- /* page out conversion routine */
- void (*pgout) __P((void *, db_pgno_t, void *));
- void *pgcookie; /* cookie for page in/out routines */
-#ifdef STATISTICS
- u_long cachehit;
- u_long cachemiss;
- u_long pagealloc;
- u_long pageflush;
- u_long pageget;
- u_long pagenew;
- u_long pageput;
- u_long pageread;
- u_long pagewrite;
-#endif
-} MPOOL;
-
-#define MPOOL_IGNOREPIN 0x01 /* Ignore if the page is pinned. */
-#define MPOOL_PAGE_REQUEST 0x01 /* Allocate a new page with a
- specific page number. */
-#define MPOOL_PAGE_NEXT 0x02 /* Allocate a new page with the next
- page number. */
-
-#define mpool_open kdb2_mpool_open
-#define mpool_filter kdb2_mpool_filter
-#define mpool_new kdb2_mpool_new
-#define mpool_get kdb2_mpool_get
-#define mpool_delete kdb2_mpool_delete
-#define mpool_put kdb2_mpool_put
-#define mpool_sync kdb2_mpool_sync
-#define mpool_close kdb2_mpool_close
-#define mpool_stat kdb2_mpool_stat
-
-__BEGIN_DECLS
-MPOOL *mpool_open __P((void *, int, db_pgno_t, db_pgno_t));
-void mpool_filter __P((MPOOL *, void (*)(void *, db_pgno_t, void *),
- void (*)(void *, db_pgno_t, void *), void *));
-void *mpool_new __P((MPOOL *, db_pgno_t *, u_int));
-void *mpool_get __P((MPOOL *, db_pgno_t, u_int));
-int mpool_delete __P((MPOOL *, void *));
-int mpool_put __P((MPOOL *, void *, u_int));
-int mpool_sync __P((MPOOL *));
-int mpool_close __P((MPOOL *));
-#ifdef STATISTICS
-void mpool_stat __P((MPOOL *));
-#endif
-__END_DECLS