diff options
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap.h')
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap.h | 72 |
1 files changed, 63 insertions, 9 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap.h b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap.h index ea3a0f632055..a1130bbbaaae 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap.h +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zap.h @@ -19,15 +19,12 @@ * CDDL HEADER END */ /* - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. + * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. */ #ifndef _SYS_ZAP_H #define _SYS_ZAP_H -#pragma ident "%Z%%M% %I% %E% SMI" - /* * ZAP - ZFS Attribute Processor * @@ -87,9 +84,6 @@ extern "C" { #endif -#define ZAP_MAXNAMELEN 256 -#define ZAP_MAXVALUELEN 1024 - /* * The matchtype specifies which entry will be accessed. * MT_EXACT: only find an exact match (non-normalized) @@ -106,6 +100,18 @@ typedef enum matchtype MT_FIRST } matchtype_t; +typedef enum zap_flags { + /* Use 64-bit hash value (serialized cursors will always use 64-bits) */ + ZAP_FLAG_HASH64 = 1 << 0, + /* Key is binary, not string (zap_add_uint64() can be used) */ + ZAP_FLAG_UINT64_KEY = 1 << 1, + /* + * First word of key (which must be an array of uint64) is + * already randomly distributed. + */ + ZAP_FLAG_PRE_HASHED_KEY = 1 << 2, +} zap_flags_t; + /* * Create a new zapobj with no attributes and return its object number. * MT_EXACT will cause the zap object to only support MT_EXACT lookups, @@ -123,6 +129,9 @@ uint64_t zap_create(objset_t *ds, dmu_object_type_t ot, dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx); uint64_t zap_create_norm(objset_t *ds, int normflags, dmu_object_type_t ot, dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx); +uint64_t zap_create_flags(objset_t *os, int normflags, zap_flags_t flags, + dmu_object_type_t ot, int leaf_blockshift, int indirect_blockshift, + dmu_object_type_t bonustype, int bonuslen, dmu_tx_t *tx); /* * Create a new zapobj with no attributes from the given (unallocated) @@ -185,6 +194,11 @@ int zap_lookup_norm(objset_t *ds, uint64_t zapobj, const char *name, uint64_t integer_size, uint64_t num_integers, void *buf, matchtype_t mt, char *realname, int rn_len, boolean_t *normalization_conflictp); +int zap_lookup_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, uint64_t integer_size, uint64_t num_integers, void *buf); +int zap_contains(objset_t *ds, uint64_t zapobj, const char *name); +int zap_prefetch_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints); int zap_count_write(objset_t *os, uint64_t zapobj, const char *name, int add, uint64_t *towrite, uint64_t *tooverwrite); @@ -195,9 +209,12 @@ int zap_count_write(objset_t *os, uint64_t zapobj, const char *name, * If an attribute with the given name already exists, the call will * fail and return EEXIST. */ -int zap_add(objset_t *ds, uint64_t zapobj, const char *name, +int zap_add(objset_t *ds, uint64_t zapobj, const char *key, int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx); +int zap_add_uint64(objset_t *ds, uint64_t zapobj, const uint64_t *key, + int key_numints, int integer_size, uint64_t num_integers, + const void *val, dmu_tx_t *tx); /* * Set the attribute with the given name to the given value. If an @@ -209,6 +226,9 @@ int zap_add(objset_t *ds, uint64_t zapobj, const char *name, */ int zap_update(objset_t *ds, uint64_t zapobj, const char *name, int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx); +int zap_update_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, + int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx); /* * Get the length (in integers) and the integer size of the specified @@ -219,6 +239,8 @@ int zap_update(objset_t *ds, uint64_t zapobj, const char *name, */ int zap_length(objset_t *ds, uint64_t zapobj, const char *name, uint64_t *integer_size, uint64_t *num_integers); +int zap_length_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, uint64_t *integer_size, uint64_t *num_integers); /* * Remove the specified attribute. @@ -229,6 +251,8 @@ int zap_length(objset_t *ds, uint64_t zapobj, const char *name, int zap_remove(objset_t *ds, uint64_t zapobj, const char *name, dmu_tx_t *tx); int zap_remove_norm(objset_t *ds, uint64_t zapobj, const char *name, matchtype_t mt, dmu_tx_t *tx); +int zap_remove_uint64(objset_t *os, uint64_t zapobj, const uint64_t *key, + int key_numints, dmu_tx_t *tx); /* * Returns (in *count) the number of attributes in the specified zap @@ -236,7 +260,6 @@ int zap_remove_norm(objset_t *ds, uint64_t zapobj, const char *name, */ int zap_count(objset_t *ds, uint64_t zapobj, uint64_t *count); - /* * Returns (in name) the name of the entry whose (value & mask) * (za_first_integer) is value, or ENOENT if not found. The string @@ -253,6 +276,14 @@ int zap_value_search(objset_t *os, uint64_t zapobj, */ int zap_join(objset_t *os, uint64_t fromobj, uint64_t intoobj, dmu_tx_t *tx); +/* Same as zap_join, but set the values to 'value'. */ +int zap_join_key(objset_t *os, uint64_t fromobj, uint64_t intoobj, + uint64_t value, dmu_tx_t *tx); + +/* Same as zap_join, but add together any duplicated entries. */ +int zap_join_increment(objset_t *os, uint64_t fromobj, uint64_t intoobj, + dmu_tx_t *tx); + /* * Manipulate entries where the name + value are the "same" (the name is * a stringified version of the value). @@ -260,6 +291,23 @@ int zap_join(objset_t *os, uint64_t fromobj, uint64_t intoobj, dmu_tx_t *tx); int zap_add_int(objset_t *os, uint64_t obj, uint64_t value, dmu_tx_t *tx); int zap_remove_int(objset_t *os, uint64_t obj, uint64_t value, dmu_tx_t *tx); int zap_lookup_int(objset_t *os, uint64_t obj, uint64_t value); +int zap_increment_int(objset_t *os, uint64_t obj, uint64_t key, int64_t delta, + dmu_tx_t *tx); + +/* Here the key is an int and the value is a different int. */ +int zap_add_int_key(objset_t *os, uint64_t obj, + uint64_t key, uint64_t value, dmu_tx_t *tx); +int zap_lookup_int_key(objset_t *os, uint64_t obj, + uint64_t key, uint64_t *valuep); + +/* + * They name is a stringified version of key; increment its value by + * delta. Zero values will be zap_remove()-ed. + */ +int zap_increment_int(objset_t *os, uint64_t obj, uint64_t key, int64_t delta, + dmu_tx_t *tx); +int zap_increment(objset_t *os, uint64_t obj, const char *name, int64_t delta, + dmu_tx_t *tx); struct zap; struct zap_leaf; @@ -269,6 +317,7 @@ typedef struct zap_cursor { struct zap *zc_zap; struct zap_leaf *zc_leaf; uint64_t zc_zapobj; + uint64_t zc_serialized; uint64_t zc_hash; uint32_t zc_cd; } zap_cursor_t; @@ -320,6 +369,11 @@ void zap_cursor_advance(zap_cursor_t *zc); uint64_t zap_cursor_serialize(zap_cursor_t *zc); /* + * Advance the cursor to the attribute having the given key. + */ +int zap_cursor_move_to_key(zap_cursor_t *zc, const char *name, matchtype_t mt); + +/* * Initialize a zap cursor pointing to the position recorded by * zap_cursor_serialize (in the "serialized" argument). You can also * use a "serialized" argument of 0 to start at the beginning of the |