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libmdb: Simplify mdb_default_cmp. No real change.

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This commit is contained in:
Hallvard Furuseth 2012-04-12 07:34:14 +02:00
parent 729a8a2819
commit dce5bb2fee
1 changed files with 10 additions and 20 deletions
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30
libraries/libmdb/mdb.c
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@ -6117,27 +6117,17 @@ mdb_env_stat(MDB_env *env, MDB_stat *arg)
static void
mdb_default_cmp(MDB_txn *txn, MDB_dbi dbi)
{
if (txn->mt_dbs[dbi].md_flags & MDB_REVERSEKEY)
txn->mt_dbxs[dbi].md_cmp = mdb_cmp_memnr;
else if (txn->mt_dbs[dbi].md_flags & MDB_INTEGERKEY)
txn->mt_dbxs[dbi].md_cmp = mdb_cmp_cint;
else
txn->mt_dbxs[dbi].md_cmp = mdb_cmp_memn;
uint16_t f = txn->mt_dbs[dbi].md_flags;
if (txn->mt_dbs[dbi].md_flags & MDB_DUPSORT) {
if (txn->mt_dbs[dbi].md_flags & MDB_INTEGERDUP) {
if (txn->mt_dbs[dbi].md_flags & MDB_DUPFIXED)
txn->mt_dbxs[dbi].md_dcmp = mdb_cmp_int;
else
txn->mt_dbxs[dbi].md_dcmp = mdb_cmp_cint;
} else if (txn->mt_dbs[dbi].md_flags & MDB_REVERSEDUP) {
txn->mt_dbxs[dbi].md_dcmp = mdb_cmp_memnr;
} else {
txn->mt_dbxs[dbi].md_dcmp = mdb_cmp_memn;
}
} else {
txn->mt_dbxs[dbi].md_dcmp = NULL;
}
txn->mt_dbxs[dbi].md_cmp =
(f & MDB_REVERSEKEY) ? mdb_cmp_memnr :
(f & MDB_INTEGERKEY) ? mdb_cmp_cint : mdb_cmp_memn;
txn->mt_dbxs[dbi].md_dcmp =
!(f & MDB_DUPSORT) ? 0 :
((f & MDB_INTEGERDUP)
? ((f & MDB_DUPFIXED) ? mdb_cmp_int : mdb_cmp_cint)
: ((f & MDB_REVERSEDUP) ? mdb_cmp_memnr : mdb_cmp_memn));
}
int mdb_open(MDB_txn *txn, const char *name, unsigned int flags, MDB_dbi *dbi)