diff options
Diffstat (limited to 'mysys/mulalloc.c')
-rw-r--r-- | mysys/mulalloc.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/mysys/mulalloc.c b/mysys/mulalloc.c new file mode 100644 index 00000000000..8a7ee312aa9 --- /dev/null +++ b/mysys/mulalloc.c @@ -0,0 +1,53 @@ +/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + MA 02111-1307, USA */ + + /* Malloc many pointers at the same time */ + /* format myFlags,ptr,length,ptr,length ... until null ptr */ + +#include "mysys_priv.h" +#include <stdarg.h> + +gptr my_multi_malloc(myf myFlags, ...) +{ + va_list args; + char **ptr,*start,*res; + uint tot_length,length; + DBUG_ENTER("my_multi_malloc"); + + va_start(args,myFlags); + tot_length=0; + while ((ptr=va_arg(args, char **))) + { + length=va_arg(args,uint); + tot_length+=ALIGN_SIZE(length); + } + va_end(args); + + if (!(start=(char *) my_malloc(tot_length,myFlags))) + DBUG_RETURN(0); /* purecov: inspected */ + + va_start(args,myFlags); + res=start; + while ((ptr=va_arg(args, char **))) + { + *ptr=res; + length=va_arg(args,uint); + res+=ALIGN_SIZE(length); + } + va_end(args); + DBUG_RETURN((gptr) start); +} |