From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 6 Jan 2021 16:23:38 +0000 (+0100)
Subject: string-util: use GREEDY_ALLOC_ROUND_UP() in strextend()
X-Git-Tag: v248-rc1~425^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2a4e1fd0d498824f31292d8ba4e1e97c05eef0b8;p=thirdparty%2Fsystemd.git

string-util: use GREEDY_ALLOC_ROUND_UP() in strextend()

This uses GREEDY_ALLOC_ROUND_UP() to grow the allocation size
exponentially. This should speed allocation loops up a bit, given
that we often call strextend() repeatedly in a loop on the same
buffer.
---

diff --git a/src/basic/string-util.c b/src/basic/string-util.c
index 105952156d7..be42d5c4f5d 100644
--- a/src/basic/string-util.c
+++ b/src/basic/string-util.c
@@ -830,7 +830,7 @@ char *strextend_with_separator_internal(char **x, const char *separator, ...) {
 
         need_separator = !isempty(*x);
 
-        nr = realloc(*x, l+1);
+        nr = realloc(*x, GREEDY_ALLOC_ROUND_UP(l+1));
         if (!nr)
                 return NULL;