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samba-mirror/lib/util/talloc_report_printf.c
Dmitry Antipov b3146763a4 lib:util: prefer mallinfo2() over mallinfo() if available
Prefer mallinfo2() with 'size_t' fields over deprecated
mallinfo() (with 'int' fields which may wrap around zero
and so be inaccurate on a 64-bit system) and move relevant
checks to lib/util/wscript_configure because mallinfo()
is not used beyond 'samba-util'.

Suggested-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Dmitry Antipov <dantipov@cloudlinux.com>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-03-09 20:38:31 +00:00

135 lines
2.9 KiB
C

/*
* talloc_report into a FILE
*
* Copyright Volker Lendecke <vl@samba.org> 2015
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "talloc_report_printf.h"
static void talloc_report_printf_helper(
const void *ptr,
int depth,
int max_depth,
int is_ref,
void *private_data)
{
FILE *f = private_data;
const char *name = talloc_get_name(ptr);
if (is_ref) {
fprintf(f,
"%*sreference to: %s\n",
depth*4,
"",
name);
return;
}
if (depth == 0) {
fprintf(f,
"%stalloc report on '%s' "
"(total %6zu bytes in %3zu blocks)\n",
(max_depth < 0 ? "full " :""), name,
talloc_total_size(ptr),
talloc_total_blocks(ptr));
return;
}
if (strcmp(name, "char") == 0) {
/*
* Print out the first 50 bytes of the string
*/
fprintf(f,
"%*s%-30s contains %6zu bytes in %3zu blocks "
"(ref %zu): %*s\n", depth*4, "", name,
talloc_total_size(ptr),
talloc_total_blocks(ptr),
talloc_reference_count(ptr),
(int)MIN(50, talloc_get_size(ptr)),
(const char *)ptr);
return;
}
fprintf(f,
"%*s%-30s contains %6zu bytes in %3zu blocks (ref %zu) %p\n",
depth*4, "", name,
talloc_total_size(ptr),
talloc_total_blocks(ptr),
talloc_reference_count(ptr),
ptr);
}
void talloc_full_report_printf(TALLOC_CTX *root, FILE *f)
{
talloc_report_depth_cb(root, 0, -1, talloc_report_printf_helper, f);
#if defined(HAVE_MALLINFO2)
{
struct mallinfo2 mi2 = mallinfo2();
fprintf(f,
"mallinfo:\n"
" arena: %zu\n"
" ordblks: %zu\n"
" smblks: %zu\n"
" hblks: %zu\n"
" hblkhd: %zu\n"
" usmblks: %zu\n"
" fsmblks: %zu\n"
" uordblks: %zu\n"
" fordblks: %zu\n"
" keepcost: %zu\n",
mi2.arena,
mi2.ordblks,
mi2.smblks,
mi2.hblks,
mi2.hblkhd,
mi2.usmblks,
mi2.fsmblks,
mi2.uordblks,
mi2.fordblks,
mi2.keepcost);
}
#elif defined(HAVE_MALLINFO)
{
struct mallinfo mi = mallinfo();
fprintf(f,
"mallinfo:\n"
" arena: %d\n"
" ordblks: %d\n"
" smblks: %d\n"
" hblks: %d\n"
" hblkhd: %d\n"
" usmblks: %d\n"
" fsmblks: %d\n"
" uordblks: %d\n"
" fordblks: %d\n"
" keepcost: %d\n",
mi.arena,
mi.ordblks,
mi.smblks,
mi.hblks,
mi.hblkhd,
mi.usmblks,
mi.fsmblks,
mi.uordblks,
mi.fordblks,
mi.keepcost);
}
#endif /* HAVE_MALLINFO2 or HAVE_MALLINFO */
}