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authorUlrich Drepper <drepper@redhat.com>2000-07-07 03:00:06 +0000
committerUlrich Drepper <drepper@redhat.com>2000-07-07 03:00:06 +0000
commit3eea1bc969e4d5ba309e5fbd40e56196a002c54e (patch)
tree810b52d22b73f5e677f4743b8e0cfb87b22573f0 /malloc
parent4bbb61e414b377b647bcbff13dcd77cc323b3645 (diff)
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Test program for mtrace.
Diffstat (limited to 'malloc')
-rw-r--r--malloc/tst-mtrace.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/malloc/tst-mtrace.c b/malloc/tst-mtrace.c
new file mode 100644
index 0000000..bb1ec23
--- /dev/null
+++ b/malloc/tst-mtrace.c
@@ -0,0 +1,103 @@
+/* Test program for mtrace.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C 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.
+
+ The GNU C 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 the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <mcheck.h>
+#include <paths.h>
+#include <search.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+static void print (const void *node, VISIT value, int level);
+
+/* Used for several purposes. */
+static FILE *fp;
+
+
+int
+main (void)
+{
+ void *root = NULL;
+ size_t linelen = 0;
+ char *line = NULL;
+
+ /* Enable memory usage tracing. */
+ mtrace ();
+
+ /* Perform some operations which definitely will allocate some
+ memory. */
+ fp = fopen (__FILE__, "r");
+ if (fp == NULL)
+ /* Shouldn't happen since this program is executed in the source
+ directory. */
+ abort ();
+
+ while (!feof (fp))
+ {
+ char **p;
+ char *copy;
+ ssize_t n = getline (&line, &linelen, fp);
+
+ if (n < 0)
+ break;
+
+ if (n == 0)
+ continue;
+
+ copy = strdup (line);
+ if (copy == NULL)
+ abort ();
+
+ p = (char **) tsearch (copy, &root,
+ (int (*) (const void *, const void *)) strcmp);
+ if (*p != copy)
+ /* This line wasn't added. */
+ free (copy);
+ }
+
+ fclose (fp);
+
+ fp = fopen (_PATH_DEVNULL, "w");
+ if (fp != NULL)
+ {
+ /* Write something through stdout. */
+ twalk (root, print);
+
+ fclose (fp);
+ }
+
+ /* Free everything. */
+ tdestroy (root, free);
+
+ /* Also the line buffer. */
+ free (line);
+
+ /* That's it. */
+ return 0;
+}
+
+
+static void
+print (const void *node, VISIT value, int level)
+{
+ static int cnt;
+ if (value == postorder || value == leaf)
+ fprintf (fp, "%3d: %s", ++cnt, *(const char **) node);
+}