From 739803c06403481f32534a4ab5f5735fa1b52e6f Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Wed, 14 Mar 2012 14:58:26 +0100
Subject: [PATCH] sds.c: sdsAllocSize() function added.

---
 src/sds.c | 6 ++++++
 src/sds.h | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/src/sds.c b/src/sds.c
index 82d12e23..bc6aa6b2 100644
--- a/src/sds.c
+++ b/src/sds.c
@@ -123,6 +123,12 @@ sds sdsRemoveFreeSpace(sds s) {
     return sh->buf;
 }
 
+size_t sdsAllocSize(sds s) {
+    struct sdshdr *sh = (void*) (s-(sizeof(struct sdshdr)));
+
+    return sizeof(*sh)+sh->len+sh->free+1;
+}
+
 /* Increment the sds length and decrements the left free space at the
  * end of the string accordingly to 'incr'. Also set the null term
  * in the new end of the string.
diff --git a/src/sds.h b/src/sds.h
index b00551b4..0648381b 100644
--- a/src/sds.h
+++ b/src/sds.h
@@ -94,5 +94,7 @@ sds sdsmapchars(sds s, char *from, char *to, size_t setlen);
 /* Low level functions exposed to the user API */
 sds sdsMakeRoomFor(sds s, size_t addlen);
 void sdsIncrLen(sds s, int incr);
+sds sdsRemoveFreeSpace(sds s);
+size_t sdsAllocSize(sds s);
 
 #endif
-- 
2.45.2