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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "PG.h"
#include "Session.h"
#include "common/debug.h"
#define dout_context cct
#define dout_subsys ceph_subsys_osd
using std::map;
using std::set;
void Session::clear_backoffs()
{
map<spg_t,map<hobject_t,set<ceph::ref_t<Backoff>>>> ls;
{
std::lock_guard l(backoff_lock);
ls.swap(backoffs);
backoff_count = 0;
}
for (auto& i : ls) {
for (auto& p : i.second) {
for (auto& b : p.second) {
std::lock_guard l(b->lock);
if (b->pg) {
ceph_assert(b->session == this);
ceph_assert(b->is_new() || b->is_acked());
b->pg->rm_backoff(b);
b->pg.reset();
b->session.reset();
} else if (b->session) {
ceph_assert(b->session == this);
ceph_assert(b->is_deleting());
b->session.reset();
}
}
}
}
}
void Session::ack_backoff(
CephContext *cct,
spg_t pgid,
uint64_t id,
const hobject_t& begin,
const hobject_t& end)
{
std::lock_guard l(backoff_lock);
auto p = backoffs.find(pgid);
if (p == backoffs.end()) {
dout(20) << __func__ << " " << pgid << " " << id << " [" << begin << ","
<< end << ") pg not found" << dendl;
return;
}
auto q = p->second.find(begin);
if (q == p->second.end()) {
dout(20) << __func__ << " " << pgid << " " << id << " [" << begin << ","
<< end << ") begin not found" << dendl;
return;
}
for (auto i = q->second.begin(); i != q->second.end(); ++i) {
Backoff *b = (*i).get();
if (b->id == id) {
if (b->is_new()) {
b->state = Backoff::STATE_ACKED;
dout(20) << __func__ << " now " << *b << dendl;
} else if (b->is_deleting()) {
dout(20) << __func__ << " deleting " << *b << dendl;
q->second.erase(i);
--backoff_count;
}
break;
}
}
if (q->second.empty()) {
dout(20) << __func__ << " clearing begin bin " << q->first << dendl;
p->second.erase(q);
if (p->second.empty()) {
dout(20) << __func__ << " clearing pg bin " << p->first << dendl;
backoffs.erase(p);
}
}
ceph_assert(!backoff_count == backoffs.empty());
}
bool Session::check_backoff(
CephContext *cct, spg_t pgid, const hobject_t& oid, const Message *m)
{
auto b = have_backoff(pgid, oid);
if (b) {
dout(10) << __func__ << " session " << this << " has backoff " << *b
<< " for " << *m << dendl;
ceph_assert(!b->is_acked() || !g_conf()->osd_debug_crash_on_ignored_backoff);
return true;
}
// we may race with ms_handle_reset. it clears session->con before removing
// backoffs, so if we see con is cleared here we have to abort this
// request.
if (!con) {
dout(10) << __func__ << " session " << this << " disconnected" << dendl;
return true;
}
return false;
}
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