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/*
samba -- Unix SMB/CIFS implementation.
Copyright (C) 2001, 2002 by Martin Pool
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 "includes.h"
#include "messages.h"
#include "lib/util/talloc_report.h"
#ifdef HAVE_MALLINFO
#include <malloc.h>
#endif /* HAVE_MALLINFO */
/**
* Prepare memory allocation report based on mallinfo()
**/
static char *get_mallinfo_report(void *mem_ctx)
{
char *report = NULL;
#ifdef HAVE_MALLINFO
struct mallinfo mi;
mi = mallinfo();
report = talloc_asprintf(mem_ctx,
"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_MALLINFO */
return report;
}
/**
* Respond to a POOL_USAGE message by sending back string form of memory
* usage stats.
**/
static void msg_pool_usage(struct messaging_context *msg_ctx,
void *private_data,
uint32_t msg_type,
struct server_id src,
DATA_BLOB *data)
{
char *report = NULL;
char *mreport = NULL;
int iov_size = 0;
struct iovec iov[2];
SMB_ASSERT(msg_type == MSG_REQ_POOL_USAGE);
DEBUG(2,("Got POOL_USAGE\n"));
report = talloc_report_str(msg_ctx, NULL);
if (report != NULL) {
iov[iov_size].iov_base = report;
iov[iov_size].iov_len = talloc_get_size(report) - 1;
iov_size++;
}
mreport = get_mallinfo_report(msg_ctx);
if (mreport != NULL) {
iov[iov_size].iov_base = mreport;
iov[iov_size].iov_len = talloc_get_size(mreport) - 1;
iov_size++;
}
if (iov_size) {
messaging_send_iov(msg_ctx,
src,
MSG_POOL_USAGE,
iov,
iov_size,
NULL,
0);
}
TALLOC_FREE(report);
TALLOC_FREE(mreport);
}
/**
* Register handler for MSG_REQ_POOL_USAGE
**/
void register_msg_pool_usage(struct messaging_context *msg_ctx)
{
messaging_register(msg_ctx, NULL, MSG_REQ_POOL_USAGE, msg_pool_usage);
DEBUG(2, ("Registered MSG_REQ_POOL_USAGE\n"));
}
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