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Diffstat (limited to 'src/3rdparty/btree/src/btree.h')
| -rw-r--r-- | src/3rdparty/btree/src/btree.h | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/src/3rdparty/btree/src/btree.h b/src/3rdparty/btree/src/btree.h deleted file mode 100644 index a8f88102..00000000 --- a/src/3rdparty/btree/src/btree.h +++ /dev/null @@ -1,150 +0,0 @@ -/* $OpenBSD: btree.h,v 1.6 2010/07/02 01:43:00 martinh Exp $ */ - -/* - * Copyright (c) 2009, 2010 Martin Hedenfalk <martin@bzero.se> - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef _btree_h_ -#define _btree_h_ - -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> - -struct mpage; -struct cursor; -struct btree_txn; - -struct btval { - void *data; - size_t size; - int free_data; /* true if data malloc'd */ - struct mpage *mp; /* ref'd memory page */ -}; - -typedef int (*bt_cmp_func)(const char *adata, size_t asize, - const char *bdata, size_t bsize, void *opdata); -typedef void (*bt_prefix_func)(const struct btval *a, - const struct btval *b, - struct btval *sep); - -#define BT_NOOVERWRITE 1 -#define BT_ALLOWDUPS 2 - -/* flags for btree_txn_commit */ -#define BT_FORCE_MARKER 0x01 - -enum cursor_op { /* cursor operations */ - BT_CURSOR, /* position at given key */ - BT_CURSOR_EXACT, /* position at key, or fail */ - BT_FIRST, - BT_NEXT, - BT_LAST, /* not implemented */ - BT_PREV /* not implemented */ -}; - -/* return codes */ -#define BT_FAIL -1 -#define BT_SUCCESS 0 - -/* btree flags */ -#define BT_NOSYNC 0x02 /* don't fsync after commit */ -#define BT_RDONLY 0x04 /* read only */ -#define BT_REVERSEKEY 0x08 /* use reverse string keys */ -#define BT_USEMARKER 0x10 /* find last marked meta page when opening db */ -#define BT_NOPGCHECKSUM 0x20 /* calculate checksums per page */ - -struct btree_stat { - unsigned long long int hits; /* cache hits */ - unsigned long long int reads; /* page reads */ - unsigned long long int writes; /* page writes */ - unsigned int max_cache; /* max cached pages */ - unsigned int cache_size; /* current cache size */ - unsigned int branch_pages; - unsigned int leaf_pages; - unsigned int overflow_pages; - unsigned int revisions; - unsigned int depth; - unsigned long long int entries; - unsigned int psize; - unsigned int ksize; - time_t created_at; - unsigned int tag; -}; - -struct btree *btree_open_fd(const char *path, int fd, unsigned int flags); -struct btree *btree_open(const char *path, unsigned int flags, - mode_t mode); -int btree_get_fd(struct btree *bt); -void btree_close(struct btree *bt); -const struct btree_stat *btree_stat(struct btree *bt); -struct btree_txn *btree_get_txn(struct btree *bt); - -struct btree_txn *btree_txn_begin(struct btree *bt, int rdonly); -struct btree_txn *btree_txn_begin_with_tag(struct btree *bt, unsigned int tag); -unsigned int btree_txn_get_tag(struct btree_txn *txn); -int btree_txn_commit(struct btree_txn *txn, unsigned int tag, unsigned int flags); -void btree_txn_abort(struct btree_txn *txn); -int btree_txn_is_read(struct btree_txn *txn); -int btree_txn_is_error(struct btree_txn *txn); - -int btree_txn_get(struct btree *bt, struct btree_txn *txn, - struct btval *key, struct btval *data); -int btree_txn_put(struct btree *bt, struct btree_txn *txn, - struct btval *key, struct btval *data, - unsigned int flags); -int btree_txn_del(struct btree *bt, struct btree_txn *txn, - struct btval *key, struct btval *data); - -#define btree_get(bt, key, data) \ - btree_txn_get(bt, NULL, key, data) -#define btree_put(bt, key, data, flags) \ - btree_txn_put(bt, NULL, key, data, flags) -#define btree_del(bt, key, data) \ - btree_txn_del(bt, NULL, key, data) - -void btree_set_cache_size(struct btree *bt, - unsigned int cache_size); -unsigned int btree_get_flags(struct btree *bt); -const char *btree_get_path(struct btree *bt); - -#define btree_cursor_open(bt) \ - btree_txn_cursor_open(bt, NULL) -struct cursor *btree_txn_cursor_open(struct btree *bt, - struct btree_txn *txn); -void btree_cursor_close(struct cursor *cursor); -int btree_cursor_get(struct cursor *cursor, - struct btval *key, struct btval *data, - enum cursor_op op); -struct btree *btree_cursor_bt(struct cursor *cursor); -struct btree_txn *btree_cursor_txn(struct cursor *cursor); - -int btree_sync(struct btree *bt); -int btree_compact(struct btree *bt); -int btree_revert(struct btree *bt); -int btree_rollback(struct btree *bt); - -void btree_set_cmp(struct btree *bt, bt_cmp_func cmp, void *context); - -int btree_cmp(struct btree *bt, const struct btval *a, - const struct btval *b); -void btval_reset(struct btval *btv); -int btval_ref(struct btval *btv); -int btval_deref(struct btval *btv); - -void btree_dump(struct btree *bt); -int btree_dump_page_from_file(const char *filename, unsigned int pagen); - -#endif |