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/*
Copyright (c) 2009 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS 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.
GlusterFS 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 <stdarg.h>
#include <malloc.h>
#include "glusterfs.h"
#include "logging.h"
#include "iobuf.h"
#include "statedump.h"
#include "stack.h"
static pthread_mutex_t gf_proc_dump_mutex;
static int gf_dump_fd = -1;
static void
gf_proc_dump_lock (void)
{
pthread_mutex_lock(&gf_proc_dump_mutex);
}
static void
gf_proc_dump_unlock (void)
{
pthread_mutex_unlock(&gf_proc_dump_mutex);
}
static int
gf_proc_dump_open (void)
{
char path[256];
int dump_fd = -1;
memset(path, 0, sizeof(path));
snprintf(path, sizeof(path), "%s.%d",GF_DUMP_LOGFILE_ROOT, getpid());
dump_fd = open(path, O_CREAT|O_RDWR|O_TRUNC|O_APPEND, 0600);
if (dump_fd < 0) {
gf_log("", GF_LOG_ERROR, "Unable to open file: %s"
" errno: %d", path, errno);
return -1;
}
gf_dump_fd = dump_fd;
return 0;
}
static void
gf_proc_dump_close (void)
{
close(gf_dump_fd);
gf_dump_fd = -1;
}
void
gf_proc_dump_add_section (char *key, ...)
{
char buf[GF_DUMP_MAX_BUF_LEN];
va_list ap;
int ret;
assert(key);
memset(buf, 0, sizeof(buf));
snprintf(buf, GF_DUMP_MAX_BUF_LEN, "\n[");
va_start(ap, key);
vsnprintf(buf + strlen(buf),
GF_DUMP_MAX_BUF_LEN - strlen(buf), key, ap);
va_end(ap);
snprintf(buf + strlen(buf),
GF_DUMP_MAX_BUF_LEN - strlen(buf), "]\n");
ret = write(gf_dump_fd, buf, strlen(buf));
}
void
gf_proc_dump_write (char *key, char *value,...)
{
char buf[GF_DUMP_MAX_BUF_LEN];
int offset = 0;
va_list ap;
int ret;
offset = strlen(key);
memset(buf, 0, GF_DUMP_MAX_BUF_LEN);
snprintf(buf, GF_DUMP_MAX_BUF_LEN, "%s",key);
snprintf(buf + offset, GF_DUMP_MAX_BUF_LEN - offset, "=");
offset += 1;
va_start(ap, value);
vsnprintf(buf + offset, GF_DUMP_MAX_BUF_LEN - offset, value, ap);
va_end(ap);
offset = strlen(buf);
snprintf(buf + offset, GF_DUMP_MAX_BUF_LEN - offset, "\n");
ret = write(gf_dump_fd, buf, strlen(buf));
}
/* Currently this dumps only mallinfo. More can be built on here */
void
gf_proc_dump_mem_info ()
{
#ifdef HAVE_MALLOC_STATS
struct mallinfo info;
memset(&info, 0, sizeof(struct mallinfo));
info = mallinfo();
gf_proc_dump_add_section("mallinfo");
gf_proc_dump_write("mallinfo_arena", "%d", info.arena);
gf_proc_dump_write("mallinfo_ordblks", "%d", info.ordblks);
gf_proc_dump_write("mallinfo_smblks","%d", info.smblks);
gf_proc_dump_write("mallinfo_hblks","%d", info.hblks);
gf_proc_dump_write("mallinfo_hblkhd", "%d", info.hblkhd);
gf_proc_dump_write("mallinfo_usmblks","%d", info.usmblks);
gf_proc_dump_write("mallinfo_fsmblks","%d", info.fsmblks);
gf_proc_dump_write("mallinfo_uordblks","%d", info.uordblks);
gf_proc_dump_write("mallinfo_fordblks", "%d", info.fordblks);
gf_proc_dump_write("mallinfo_keepcost", "%d", info.keepcost);
#endif
}
void
gf_proc_dump_xlator_info (xlator_t *this_xl)
{
if (!this_xl)
return;
while (this_xl) {
if (!this_xl->dumpops) {
this_xl = this_xl->next;
continue;
}
if (this_xl->dumpops->priv)
this_xl->dumpops->priv(this_xl);
if (this_xl->dumpops->inode)
this_xl->dumpops->inode(this_xl);
if (this_xl->dumpops->fd)
this_xl->dumpops->fd(this_xl);
this_xl = this_xl->next;
}
return;
}
void
gf_proc_dump_info (int signum)
{
int ret = -1;
glusterfs_ctx_t *ctx = NULL;
gf_proc_dump_lock();
ret = gf_proc_dump_open();
if (ret < 0)
goto out;
gf_proc_dump_mem_info();
ctx = get_global_ctx_ptr();
if (ctx) {
iobuf_stats_dump(ctx->iobuf_pool);
gf_proc_dump_pending_frames(ctx->pool);
gf_proc_dump_xlator_info(ctx->graph);
}
gf_proc_dump_close();
out:
gf_proc_dump_unlock();
return;
}
void
gf_proc_dump_fini (void)
{
pthread_mutex_destroy(&gf_proc_dump_mutex);
}
void
gf_proc_dump_init ()
{
pthread_mutex_init(&gf_proc_dump_mutex, NULL);
return;
}
void
gf_proc_dump_cleanup (void)
{
pthread_mutex_destroy(&gf_proc_dump_mutex);
}
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