From afcbcc0e58749ebbebcd595c120d17a0e3dbb82e Mon Sep 17 00:00:00 2001
From: oranagra <oran@redislabs.com>
Date: Mon, 9 May 2016 18:01:09 +0300
Subject: dict.c: introduce dictUnlink().

Notes by @antirez:

This patch was picked from a larger commit by Oran and adapted to change
the API a bit. The basic idea is to avoid double lookups when there is
to use the value of the deleted entry.

BEFORE:

    entry = dictFind( ... ); /* 1st lookup. */
    /* Do somethjing with the entry. */
    dictDelete(...);         /* 2nd lookup. */

AFTER:

    entry = dictUnlink( ... ); /* 1st lookup. */
    /* Do somethjing with the entry. */
    dictFreeUnlinkedEntry(entry); /* No lookups!. */
---
 src/dict.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/dict.h')

diff --git a/src/dict.h b/src/dict.h
index 739de68ef..406fa36d8 100644
--- a/src/dict.h
+++ b/src/dict.h
@@ -154,7 +154,8 @@ dictEntry *dictAddRaw(dict *d, void *key, dictEntry **existing);
 int dictReplace(dict *d, void *key, void *val);
 dictEntry *dictReplaceRaw(dict *d, void *key);
 int dictDelete(dict *d, const void *key);
-int dictDeleteNoFree(dict *d, const void *key);
+dictEntry *dictUnlink(dict *ht, const void *key);
+void dictFreeUnlinkedEntry(dict *d, dictEntry *he);
 void dictRelease(dict *d);
 dictEntry * dictFind(dict *d, const void *key);
 void *dictFetchValue(dict *d, const void *key);
-- 
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