* malloc/tst-trim1.c: New file.

* malloc/Makefile (tests): Add tst-trim1.
This commit is contained in:
Ulrich Drepper 2007-12-16 22:57:57 +00:00
parent 68631c8eb9
commit be8c1500c7
3 changed files with 60 additions and 2 deletions

View File

@ -5,6 +5,8 @@
(mTRIm): Additionally iterate over all free blocks and use madvise
to free memory for all those blocks which contain at least one
memory page.
* malloc/tst-trim1.c: New file.
* malloc/Makefile (tests): Add tst-trim1.
* malloc/malloc.c (do_check_malloc_state): Minimal cleanups.

View File

@ -1,4 +1,4 @@
# Copyright (C) 1991-1999, 2000, 2001, 2002, 2003, 2005, 2006
# Copyright (C) 1991-1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007
# Free Software Foundation, Inc.
# This file is part of the GNU C Library.
@ -27,7 +27,7 @@ all:
dist-headers := malloc.h
headers := $(dist-headers) obstack.h mcheck.h
tests := mallocbug tst-malloc tst-valloc tst-calloc tst-obstack \
tst-mallocstate tst-mcheck tst-mallocfork
tst-mallocstate tst-mcheck tst-mallocfork tst-trim1
test-srcs = tst-mtrace
distribute = thread-m.h mtrace.pl mcheck-init.c stackinfo.h memusage.h \

56
malloc/tst-trim1.c Normal file
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@ -0,0 +1,56 @@
#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 10000
static void *arr[N];
static int
do_test (void)
{
for (int i = 0; i < N; ++i)
{
size_t size = random () % 16384;
if ((arr[i] = malloc (size)) == NULL)
{
nomem:
puts ("not enough memory");
return 0;
}
memset (arr[i], size, size);
}
void *p = malloc (256);
if (p == NULL)
goto nomem;
memset (p, 1, 256);
puts ("==================================================================");
for (int i = 0; i < N; ++i)
if (i % 13 != 0)
free (arr[i]);
puts ("==================================================================");
malloc_trim (0);
puts ("==================================================================");
p = malloc (30000);
if (p == NULL)
goto nomem;
memset (p, 2, 30000);
malloc_trim (0);
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"