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/*
Copyright (c) 2010 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 "statedump.h"
#include "stack.h"
static inline
int call_frames_count (call_frame_t *call_frame)
{
call_frame_t *pos;
int32_t count = 0;
if (!call_frame)
return count;
for (pos = call_frame; pos != NULL; pos = pos->next)
count++;
return count;
}
void
gf_proc_dump_call_frame (call_frame_t *call_frame, const char *key_buf,...)
{
char prefix[GF_DUMP_MAX_BUF_LEN];
va_list ap;
char key[GF_DUMP_MAX_BUF_LEN];
call_frame_t my_frame;
int ret = -1;
if (!call_frame)
return;
GF_ASSERT (key_buf);
memset(prefix, 0, sizeof(prefix));
memset(&my_frame, 0, sizeof(my_frame));
va_start(ap, key_buf);
vsnprintf(prefix, GF_DUMP_MAX_BUF_LEN, key_buf, ap);
va_end(ap);
ret = TRY_LOCK(&call_frame->lock);
if (ret) {
gf_log("", GF_LOG_WARNING, "Unable to dump call frame"
" errno: %s", strerror (errno));
return;
}
memcpy(&my_frame, call_frame, sizeof(my_frame));
UNLOCK(&call_frame->lock);
gf_proc_dump_build_key(key, prefix,"ref_count");
gf_proc_dump_write(key, "%d", my_frame.ref_count);
gf_proc_dump_build_key(key, prefix,"translator");
gf_proc_dump_write(key, "%s", my_frame.this->name);
gf_proc_dump_build_key(key, prefix,"complete");
gf_proc_dump_write(key, "%d", my_frame.complete);
if (my_frame.parent) {
gf_proc_dump_build_key(key, prefix,"parent");
gf_proc_dump_write(key, "%s", my_frame.parent->this->name);
}
if (my_frame.wind_from) {
gf_proc_dump_build_key(key, prefix, "wind_from");
gf_proc_dump_write(key, "%s", my_frame.wind_from);
}
if (my_frame.wind_to) {
gf_proc_dump_build_key(key, prefix, "wind_to");
gf_proc_dump_write(key, "%s", my_frame.wind_to);
}
if (my_frame.unwind_from) {
gf_proc_dump_build_key(key, prefix, "unwind_from");
gf_proc_dump_write(key, "%s", my_frame.unwind_from);
}
if (my_frame.unwind_to) {
gf_proc_dump_build_key(key, prefix, "unwind_to");
gf_proc_dump_write(key, "%s", my_frame.unwind_to);
}
}
void
gf_proc_dump_call_stack (call_stack_t *call_stack, const char *key_buf,...)
{
char prefix[GF_DUMP_MAX_BUF_LEN];
va_list ap;
call_frame_t *trav;
int32_t cnt, i;
char key[GF_DUMP_MAX_BUF_LEN];
if (!call_stack)
return;
GF_ASSERT (key_buf);
cnt = call_frames_count(&call_stack->frames);
memset(prefix, 0, sizeof(prefix));
va_start(ap, key_buf);
vsnprintf(prefix, GF_DUMP_MAX_BUF_LEN, key_buf, ap);
va_end(ap);
gf_proc_dump_build_key(key, prefix,"uid");
gf_proc_dump_write(key, "%d", call_stack->uid);
gf_proc_dump_build_key(key, prefix,"gid");
gf_proc_dump_write(key, "%d", call_stack->gid);
gf_proc_dump_build_key(key, prefix,"pid");
gf_proc_dump_write(key, "%d", call_stack->pid);
gf_proc_dump_build_key(key, prefix,"unique");
gf_proc_dump_write(key, "%Ld", call_stack->unique);
gf_proc_dump_build_key(key, prefix,"op");
if (call_stack->type == GF_OP_TYPE_FOP)
gf_proc_dump_write(key, "%s", gf_fop_list[call_stack->op]);
else if (call_stack->type == GF_OP_TYPE_MGMT)
gf_proc_dump_write(key, "%s", gf_mgmt_list[call_stack->op]);
gf_proc_dump_build_key(key, prefix,"type");
gf_proc_dump_write(key, "%d", call_stack->type);
gf_proc_dump_build_key(key, prefix,"cnt");
gf_proc_dump_write(key, "%d", cnt);
trav = &call_stack->frames;
for (i = 1; i <= cnt; i++) {
if (trav) {
gf_proc_dump_add_section("%s.frame.%d", prefix, i);
gf_proc_dump_call_frame(trav, "%s.frame.%d", prefix, i);
trav = trav->next;
}
}
}
void
gf_proc_dump_pending_frames (call_pool_t *call_pool)
{
call_stack_t *trav = NULL;
int i = 1;
int ret = -1;
if (!call_pool)
return;
ret = TRY_LOCK (&(call_pool->lock));
if (ret) {
gf_log("", GF_LOG_WARNING, "Unable to dump call pool"
" errno: %d", errno);
return;
}
gf_proc_dump_add_section("global.callpool");
gf_proc_dump_write("global.callpool","%p", call_pool);
gf_proc_dump_write("global.callpool.cnt","%d", call_pool->cnt);
list_for_each_entry (trav, &call_pool->all_frames, all_frames) {
gf_proc_dump_add_section("global.callpool.stack.%d",i);
gf_proc_dump_call_stack(trav, "global.callpool.stack.%d", i);
i++;
}
UNLOCK (&(call_pool->lock));
}
gf_boolean_t
__is_fuse_call (call_frame_t *frame)
{
gf_boolean_t is_fuse_call = _gf_false;
GF_ASSERT (frame);
GF_ASSERT (frame->root);
if (NFS_PID != frame->root->pid)
is_fuse_call = _gf_true;
return is_fuse_call;
}
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