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sds.c no longe pre-allocate more than 1MB of free space ahead. This fixes issue .

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This commit is contained in:
antirez
2012-01-16 10:03:38 +01:00
parent 1cd0cdd523
commit 0b73cbb69f
2 changed files with 7 additions and 1 deletions

6
src/sds.c

@@ -107,7 +107,11 @@ static sds sdsMakeRoomFor(sds s, size_t addlen) {
if (free >= addlen) return s; if (free >= addlen) return s;
len = sdslen(s); len = sdslen(s);
sh = (void*) (s-(sizeof(struct sdshdr))); sh = (void*) (s-(sizeof(struct sdshdr)));
newlen = (len+addlen)*2; newlen = (len+addlen);
if (newlen < SDS_MAX_PREALLOC)
newlen *= 2;
else
newlen += SDS_MAX_PREALLOC;
newsh = zrealloc(sh, sizeof(struct sdshdr)+newlen+1); newsh = zrealloc(sh, sizeof(struct sdshdr)+newlen+1);
#ifdef SDS_ABORT_ON_OOM #ifdef SDS_ABORT_ON_OOM
if (newsh == NULL) sdsOomAbort(); if (newsh == NULL) sdsOomAbort();

2
src/sds.h

@@ -31,6 +31,8 @@
#ifndef __SDS_H #ifndef __SDS_H
#define __SDS_H #define __SDS_H
#define SDS_MAX_PREALLOC (1024*1024)
#include <sys/types.h> #include <sys/types.h>
#include <stdarg.h> #include <stdarg.h>