mirror of
https://github.com/ceph/ceph
synced 2025-01-06 19:20:49 +00:00
109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
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// vim: ts=8 sw=2 smarttab
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/*
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* Ceph - scalable distributed file system
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*
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* Copyright (C) 2015 Red Hat
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*
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* This is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software
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* Foundation. See file COPYING.
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*
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*/
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#include "SimpleLock.h"
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#include "Mutation.h"
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void SimpleLock::dump(ceph::Formatter *f) const {
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ceph_assert(f != NULL);
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if (is_sync_and_unlocked()) {
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return;
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}
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f->open_array_section("gather_set");
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if (have_more()) {
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for(const auto &i : more()->gather_set) {
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f->dump_int("rank", i);
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}
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}
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f->close_section();
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f->dump_string("state", get_state_name(get_state()));
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f->dump_bool("is_leased", is_leased());
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f->dump_int("num_rdlocks", get_num_rdlocks());
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f->dump_int("num_wrlocks", get_num_wrlocks());
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f->dump_int("num_xlocks", get_num_xlocks());
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f->open_object_section("xlock_by");
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if (get_xlock_by()) {
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get_xlock_by()->dump(f);
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}
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f->close_section();
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}
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int SimpleLock::get_wait_shift() const {
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switch (get_type()) {
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case CEPH_LOCK_DN: return 8;
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case CEPH_LOCK_DVERSION: return 8 + 1*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_IAUTH: return 8 + 2*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_ILINK: return 8 + 3*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_IDFT: return 8 + 4*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_IFILE: return 8 + 5*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_IVERSION: return 8 + 6*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_IXATTR: return 8 + 7*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_ISNAP: return 8 + 8*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_INEST: return 8 + 9*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_IFLOCK: return 8 +10*SimpleLock::WAIT_BITS;
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case CEPH_LOCK_IPOLICY: return 8 +11*SimpleLock::WAIT_BITS;
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default:
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ceph_abort();
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}
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}
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int SimpleLock::get_cap_shift() const {
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switch (get_type()) {
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case CEPH_LOCK_IAUTH: return CEPH_CAP_SAUTH;
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case CEPH_LOCK_ILINK: return CEPH_CAP_SLINK;
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case CEPH_LOCK_IFILE: return CEPH_CAP_SFILE;
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case CEPH_LOCK_IXATTR: return CEPH_CAP_SXATTR;
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default: return 0;
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}
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}
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int SimpleLock::get_cap_mask() const {
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switch (get_type()) {
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case CEPH_LOCK_IFILE: return (1 << CEPH_CAP_FILE_BITS) - 1;
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default: return (1 << CEPH_CAP_SIMPLE_BITS) - 1;
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}
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}
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SimpleLock::unstable_bits_t::unstable_bits_t() :
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lock_caches(member_offset(MDLockCache::LockItem, item_lock)) {}
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void SimpleLock::add_cache(MDLockCacheItem& item) {
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more()->lock_caches.push_back(&item.item_lock);
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state_flags |= CACHED;
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}
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void SimpleLock::remove_cache(MDLockCacheItem& item) {
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auto& lock_caches = more()->lock_caches;
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item.item_lock.remove_myself();
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if (lock_caches.empty()) {
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state_flags &= ~CACHED;
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try_clear_more();
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}
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}
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std::vector<MDLockCache*> SimpleLock::get_active_caches() {
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std::vector<MDLockCache*> result;
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if (have_more()) {
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for (auto it = more()->lock_caches.begin_use_current(); !it.end(); ++it) {
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auto lock_cache = (*it)->parent;
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if (!lock_cache->invalidating)
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result.push_back(lock_cache);
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}
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}
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return result;
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}
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