diff options
Diffstat (limited to 'src/osdc/Objecter.h')
| -rw-r--r-- | src/osdc/Objecter.h | 3067 |
1 files changed, 3067 insertions, 0 deletions
diff --git a/src/osdc/Objecter.h b/src/osdc/Objecter.h new file mode 100644 index 00000000..ca8d85f7 --- /dev/null +++ b/src/osdc/Objecter.h @@ -0,0 +1,3067 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab +/* + * Ceph - scalable distributed file system + * + * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net> + * + * This is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software + * Foundation. See file COPYING. + * + */ + +#ifndef CEPH_OBJECTER_H +#define CEPH_OBJECTER_H + +#include <condition_variable> +#include <list> +#include <map> +#include <mutex> +#include <memory> +#include <sstream> +#include <type_traits> + +#include <boost/thread/shared_mutex.hpp> + +#include "include/ceph_assert.h" +#include "include/buffer.h" +#include "include/types.h" +#include "include/rados/rados_types.hpp" + +#include "common/admin_socket.h" +#include "common/ceph_time.h" +#include "common/ceph_timer.h" +#include "common/config_obs.h" +#include "common/shunique_lock.h" +#include "common/zipkin_trace.h" +#include "common/Finisher.h" +#include "common/Throttle.h" + +#include "messages/MOSDOp.h" +#include "msg/Dispatcher.h" +#include "osd/OSDMap.h" + + +class Context; +class Messenger; +class OSDMap; +class MonClient; +class Message; +class Finisher; + +class MPoolOpReply; + +class MGetPoolStatsReply; +class MStatfsReply; +class MCommandReply; +class MWatchNotify; + +class PerfCounters; + +// ----------------------------------------- + +struct ObjectOperation { + vector<OSDOp> ops; + int flags; + int priority; + + vector<bufferlist*> out_bl; + vector<Context*> out_handler; + vector<int*> out_rval; + + ObjectOperation() : flags(0), priority(0) {} + ~ObjectOperation() { + while (!out_handler.empty()) { + delete out_handler.back(); + out_handler.pop_back(); + } + } + + size_t size() { + return ops.size(); + } + + void set_last_op_flags(int flags) { + ceph_assert(!ops.empty()); + ops.rbegin()->op.flags = flags; + } + + class C_TwoContexts; + /** + * Add a callback to run when this operation completes, + * after any other callbacks for it. + */ + void add_handler(Context *extra); + + OSDOp& add_op(int op) { + int s = ops.size(); + ops.resize(s+1); + ops[s].op.op = op; + out_bl.resize(s+1); + out_bl[s] = NULL; + out_handler.resize(s+1); + out_handler[s] = NULL; + out_rval.resize(s+1); + out_rval[s] = NULL; + return ops[s]; + } + void add_data(int op, uint64_t off, uint64_t len, bufferlist& bl) { + OSDOp& osd_op = add_op(op); + osd_op.op.extent.offset = off; + osd_op.op.extent.length = len; + osd_op.indata.claim_append(bl); + } + void add_writesame(int op, uint64_t off, uint64_t write_len, + bufferlist& bl) { + OSDOp& osd_op = add_op(op); + osd_op.op.writesame.offset = off; + osd_op.op.writesame.length = write_len; + osd_op.op.writesame.data_length = bl.length(); + osd_op.indata.claim_append(bl); + } + void add_xattr(int op, const char *name, const bufferlist& data) { + OSDOp& osd_op = add_op(op); + osd_op.op.xattr.name_len = (name ? strlen(name) : 0); + osd_op.op.xattr.value_len = data.length(); + if (name) + osd_op.indata.append(name, osd_op.op.xattr.name_len); + osd_op.indata.append(data); + } + void add_xattr_cmp(int op, const char *name, uint8_t cmp_op, + uint8_t cmp_mode, const bufferlist& data) { + OSDOp& osd_op = add_op(op); + osd_op.op.xattr.name_len = (name ? strlen(name) : 0); + osd_op.op.xattr.value_len = data.length(); + osd_op.op.xattr.cmp_op = cmp_op; + osd_op.op.xattr.cmp_mode = cmp_mode; + if (name) + osd_op.indata.append(name, osd_op.op.xattr.name_len); + osd_op.indata.append(data); + } + void add_call(int op, const char *cname, const char *method, + bufferlist &indata, + bufferlist *outbl, Context *ctx, int *prval) { + OSDOp& osd_op = add_op(op); + + unsigned p = ops.size() - 1; + out_handler[p] = ctx; + out_bl[p] = outbl; + out_rval[p] = prval; + + osd_op.op.cls.class_len = strlen(cname); + osd_op.op.cls.method_len = strlen(method); + osd_op.op.cls.indata_len = indata.length(); + osd_op.indata.append(cname, osd_op.op.cls.class_len); + osd_op.indata.append(method, osd_op.op.cls.method_len); + osd_op.indata.append(indata); + } + void add_pgls(int op, uint64_t count, collection_list_handle_t cookie, + epoch_t start_epoch) { + OSDOp& osd_op = add_op(op); + osd_op.op.pgls.count = count; + osd_op.op.pgls.start_epoch = start_epoch; + encode(cookie, osd_op.indata); + } + void add_pgls_filter(int op, uint64_t count, const bufferlist& filter, + collection_list_handle_t cookie, epoch_t start_epoch) { + OSDOp& osd_op = add_op(op); + osd_op.op.pgls.count = count; + osd_op.op.pgls.start_epoch = start_epoch; + string cname = "pg"; + string mname = "filter"; + encode(cname, osd_op.indata); + encode(mname, osd_op.indata); + osd_op.indata.append(filter); + encode(cookie, osd_op.indata); + } + void add_alloc_hint(int op, uint64_t expected_object_size, + uint64_t expected_write_size, + uint32_t flags) { + OSDOp& osd_op = add_op(op); + osd_op.op.alloc_hint.expected_object_size = expected_object_size; + osd_op.op.alloc_hint.expected_write_size = expected_write_size; + osd_op.op.alloc_hint.flags = flags; + } + + // ------ + + // pg + void pg_ls(uint64_t count, bufferlist& filter, + collection_list_handle_t cookie, epoch_t start_epoch) { + if (filter.length() == 0) + add_pgls(CEPH_OSD_OP_PGLS, count, cookie, start_epoch); + else + add_pgls_filter(CEPH_OSD_OP_PGLS_FILTER, count, filter, cookie, + start_epoch); + flags |= CEPH_OSD_FLAG_PGOP; + } + + void pg_nls(uint64_t count, const bufferlist& filter, + collection_list_handle_t cookie, epoch_t start_epoch) { + if (filter.length() == 0) + add_pgls(CEPH_OSD_OP_PGNLS, count, cookie, start_epoch); + else + add_pgls_filter(CEPH_OSD_OP_PGNLS_FILTER, count, filter, cookie, + start_epoch); + flags |= CEPH_OSD_FLAG_PGOP; + } + + void scrub_ls(const librados::object_id_t& start_after, + uint64_t max_to_get, + std::vector<librados::inconsistent_obj_t> *objects, + uint32_t *interval, + int *rval); + void scrub_ls(const librados::object_id_t& start_after, + uint64_t max_to_get, + std::vector<librados::inconsistent_snapset_t> *objects, + uint32_t *interval, + int *rval); + + void create(bool excl) { + OSDOp& o = add_op(CEPH_OSD_OP_CREATE); + o.op.flags = (excl ? CEPH_OSD_OP_FLAG_EXCL : 0); + } + + struct C_ObjectOperation_stat : public Context { + bufferlist bl; + uint64_t *psize; + ceph::real_time *pmtime; + time_t *ptime; + struct timespec *pts; + int *prval; + C_ObjectOperation_stat(uint64_t *ps, ceph::real_time *pm, time_t *pt, struct timespec *_pts, + int *prval) + : psize(ps), pmtime(pm), ptime(pt), pts(_pts), prval(prval) {} + void finish(int r) override { + if (r >= 0) { + auto p = bl.cbegin(); + try { + uint64_t size; + ceph::real_time mtime; + decode(size, p); + decode(mtime, p); + if (psize) + *psize = size; + if (pmtime) + *pmtime = mtime; + if (ptime) + *ptime = ceph::real_clock::to_time_t(mtime); + if (pts) + *pts = ceph::real_clock::to_timespec(mtime); + } catch (buffer::error& e) { + if (prval) + *prval = -EIO; + } + } + } + }; + void stat(uint64_t *psize, ceph::real_time *pmtime, int *prval) { + add_op(CEPH_OSD_OP_STAT); + unsigned p = ops.size() - 1; + C_ObjectOperation_stat *h = new C_ObjectOperation_stat(psize, pmtime, NULL, NULL, + prval); + out_bl[p] = &h->bl; + out_handler[p] = h; + out_rval[p] = prval; + } + void stat(uint64_t *psize, time_t *ptime, int *prval) { + add_op(CEPH_OSD_OP_STAT); + unsigned p = ops.size() - 1; + C_ObjectOperation_stat *h = new C_ObjectOperation_stat(psize, NULL, ptime, NULL, + prval); + out_bl[p] = &h->bl; + out_handler[p] = h; + out_rval[p] = prval; + } + void stat(uint64_t *psize, struct timespec *pts, int *prval) { + add_op(CEPH_OSD_OP_STAT); + unsigned p = ops.size() - 1; + C_ObjectOperation_stat *h = new C_ObjectOperation_stat(psize, NULL, NULL, pts, + prval); + out_bl[p] = &h->bl; + out_handler[p] = h; + out_rval[p] = prval; + } + // object cmpext + struct C_ObjectOperation_cmpext : public Context { + int *prval; + explicit C_ObjectOperation_cmpext(int *prval) + : prval(prval) {} + + void finish(int r) { + if (prval) + *prval = r; + } + }; + + void cmpext(uint64_t off, bufferlist& cmp_bl, int *prval) { + add_data(CEPH_OSD_OP_CMPEXT, off, cmp_bl.length(), cmp_bl); + unsigned p = ops.size() - 1; + C_ObjectOperation_cmpext *h = new C_ObjectOperation_cmpext(prval); + out_handler[p] = h; + out_rval[p] = prval; + } + + // Used by C API + void cmpext(uint64_t off, uint64_t cmp_len, const char *cmp_buf, int *prval) { + bufferlist cmp_bl; + cmp_bl.append(cmp_buf, cmp_len); + add_data(CEPH_OSD_OP_CMPEXT, off, cmp_len, cmp_bl); + unsigned p = ops.size() - 1; + C_ObjectOperation_cmpext *h = new C_ObjectOperation_cmpext(prval); + out_handler[p] = h; + out_rval[p] = prval; + } + + void read(uint64_t off, uint64_t len, bufferlist *pbl, int *prval, + Context* ctx) { + bufferlist bl; + add_data(CEPH_OSD_OP_READ, off, len, bl); + unsigned p = ops.size() - 1; + out_bl[p] = pbl; + out_rval[p] = prval; + out_handler[p] = ctx; + } + + struct C_ObjectOperation_sparse_read : public Context { + bufferlist bl; + bufferlist *data_bl; + std::map<uint64_t, uint64_t> *extents; + int *prval; + C_ObjectOperation_sparse_read(bufferlist *data_bl, + std::map<uint64_t, uint64_t> *extents, + int *prval) + : data_bl(data_bl), extents(extents), prval(prval) {} + void finish(int r) override { + auto iter = bl.cbegin(); + if (r >= 0) { + // NOTE: it's possible the sub-op has not been executed but the result + // code remains zeroed. Avoid the costly exception handling on a + // potential IO path. + if (bl.length() > 0) { + try { + decode(*extents, iter); + decode(*data_bl, iter); + } catch (buffer::error& e) { + if (prval) + *prval = -EIO; + } + } else if (prval) { + *prval = -EIO; + } + } + } + }; + void sparse_read(uint64_t off, uint64_t len, std::map<uint64_t,uint64_t> *m, + bufferlist *data_bl, int *prval) { + bufferlist bl; + add_data(CEPH_OSD_OP_SPARSE_READ, off, len, bl); + unsigned p = ops.size() - 1; + C_ObjectOperation_sparse_read *h = + new C_ObjectOperation_sparse_read(data_bl, m, prval); + out_bl[p] = &h->bl; + out_handler[p] = h; + out_rval[p] = prval; + } + void write(uint64_t off, bufferlist& bl, + uint64_t truncate_size, + uint32_t truncate_seq) { + add_data(CEPH_OSD_OP_WRITE, off, bl.length(), bl); + OSDOp& o = *ops.rbegin(); + o.op.extent.truncate_size = truncate_size; + o.op.extent.truncate_seq = truncate_seq; + } + void write(uint64_t off, bufferlist& bl) { + write(off, bl, 0, 0); + } + void write_full(bufferlist& bl) { + add_data(CEPH_OSD_OP_WRITEFULL, 0, bl.length(), bl); + } + void writesame(uint64_t off, uint64_t write_len, bufferlist& bl) { + add_writesame(CEPH_OSD_OP_WRITESAME, off, write_len, bl); + } + void append(bufferlist& bl) { + add_data(CEPH_OSD_OP_APPEND, 0, bl.length(), bl); + } + void zero(uint64_t off, uint64_t len) { + bufferlist bl; + add_data(CEPH_OSD_OP_ZERO, off, len, bl); + } + void truncate(uint64_t off) { + bufferlist bl; + add_data(CEPH_OSD_OP_TRUNCATE, off, 0, bl); + } + void remove() { + bufferlist bl; + add_data(CEPH_OSD_OP_DELETE, 0, 0, bl); + } + void mapext(uint64_t off, uint64_t len) { + bufferlist bl; + add_data(CEPH_OSD_OP_MAPEXT, off, len, bl); + } + void sparse_read(uint64_t off, uint64_t len) { + bufferlist bl; + add_data(CEPH_OSD_OP_SPARSE_READ, off, len, bl); + } + + void checksum(uint8_t type, const bufferlist &init_value_bl, + uint64_t off, uint64_t len, size_t chunk_size, + bufferlist *pbl, int *prval, Context *ctx) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_CHECKSUM); + osd_op.op.checksum.offset = off; + osd_op.op.checksum.length = len; + osd_op.op.checksum.type = type; + osd_op.op.checksum.chunk_size = chunk_size; + osd_op.indata.append(init_value_bl); + + unsigned p = ops.size() - 1; + out_bl[p] = pbl; + out_rval[p] = prval; + out_handler[p] = ctx; + } + + // object attrs + void getxattr(const char *name, bufferlist *pbl, int *prval) { + bufferlist bl; + add_xattr(CEPH_OSD_OP_GETXATTR, name, bl); + unsigned p = ops.size() - 1; + out_bl[p] = pbl; + out_rval[p] = prval; + } + struct C_ObjectOperation_decodevals : public Context { + uint64_t max_entries; + bufferlist bl; + std::map<std::string,bufferlist> *pattrs; + bool *ptruncated; + int *prval; + C_ObjectOperation_decodevals(uint64_t m, std::map<std::string,bufferlist> *pa, + bool *pt, int *pr) + : max_entries(m), pattrs(pa), ptruncated(pt), prval(pr) { + if (ptruncated) { + *ptruncated = false; + } + } + void finish(int r) override { + if (r >= 0) { + auto p = bl.cbegin(); + try { + if (pattrs) + decode(*pattrs, p); + if (ptruncated) { + std::map<std::string,bufferlist> ignore; + if (!pattrs) { + decode(ignore, p); + pattrs = &ignore; + } + if (!p.end()) { + decode(*ptruncated, p); + } else { + // the OSD did not provide this. since old OSDs do not + // enfoce omap result limits either, we can infer it from + // the size of the result + *ptruncated = (pattrs->size() == max_entries); + } + } + } + catch (buffer::error& e) { + if (prval) + *prval = -EIO; + } + } + } + }; + struct C_ObjectOperation_decodekeys : public Context { + uint64_t max_entries; + bufferlist bl; + std::set<std::string> *pattrs; + bool *ptruncated; + int *prval; + C_ObjectOperation_decodekeys(uint64_t m, std::set<std::string> *pa, bool *pt, + int *pr) + : max_entries(m), pattrs(pa), ptruncated(pt), prval(pr) { + if (ptruncated) { + *ptruncated = false; + } + } + void finish(int r) override { + if (r >= 0) { + auto p = bl.cbegin(); + try { + if (pattrs) + decode(*pattrs, p); + if (ptruncated) { + std::set<std::string> ignore; + if (!pattrs) { + decode(ignore, p); + pattrs = &ignore; + } + if (!p.end()) { + decode(*ptruncated, p); + } else { + // the OSD did not provide this. since old OSDs do not + // enforce omap result limits either, we can infer it from + // the size of the result + *ptruncated = (pattrs->size() == max_entries); + } + } + } + catch (buffer::error& e) { + if (prval) + *prval = -EIO; + } + } + } + }; + struct C_ObjectOperation_decodewatchers : public Context { + bufferlist bl; + list<obj_watch_t> *pwatchers; + int *prval; + C_ObjectOperation_decodewatchers(list<obj_watch_t> *pw, int *pr) + : pwatchers(pw), prval(pr) {} + void finish(int r) override { + if (r >= 0) { + auto p = bl.cbegin(); + try { + obj_list_watch_response_t resp; + decode(resp, p); + if (pwatchers) { + for (list<watch_item_t>::iterator i = resp.entries.begin() ; + i != resp.entries.end() ; ++i) { + obj_watch_t ow; + string sa = i->addr.get_legacy_str(); + strncpy(ow.addr, sa.c_str(), 256); + ow.watcher_id = i->name.num(); + ow.cookie = i->cookie; + ow.timeout_seconds = i->timeout_seconds; + pwatchers->push_back(ow); + } + } + } + catch (buffer::error& e) { + if (prval) + *prval = -EIO; + } + } + } + }; + struct C_ObjectOperation_decodesnaps : public Context { + bufferlist bl; + librados::snap_set_t *psnaps; + int *prval; + C_ObjectOperation_decodesnaps(librados::snap_set_t *ps, int *pr) + : psnaps(ps), prval(pr) {} + void finish(int r) override { + if (r >= 0) { + auto p = bl.cbegin(); + try { + obj_list_snap_response_t resp; + decode(resp, p); + if (psnaps) { + psnaps->clones.clear(); + for (vector<clone_info>::iterator ci = resp.clones.begin(); + ci != resp.clones.end(); + ++ci) { + librados::clone_info_t clone; + + clone.cloneid = ci->cloneid; + clone.snaps.reserve(ci->snaps.size()); + clone.snaps.insert(clone.snaps.end(), ci->snaps.begin(), + ci->snaps.end()); + clone.overlap = ci->overlap; + clone.size = ci->size; + + psnaps->clones.push_back(clone); + } + psnaps->seq = resp.seq; + } + } catch (buffer::error& e) { + if (prval) + *prval = -EIO; + } + } + } + }; + void getxattrs(std::map<std::string,bufferlist> *pattrs, int *prval) { + add_op(CEPH_OSD_OP_GETXATTRS); + if (pattrs || prval) { + unsigned p = ops.size() - 1; + C_ObjectOperation_decodevals *h + = new C_ObjectOperation_decodevals(0, pattrs, nullptr, prval); + out_handler[p] = h; + out_bl[p] = &h->bl; + out_rval[p] = prval; + } + } + void setxattr(const char *name, const bufferlist& bl) { + add_xattr(CEPH_OSD_OP_SETXATTR, name, bl); + } + void setxattr(const char *name, const string& s) { + bufferlist bl; + bl.append(s); + add_xattr(CEPH_OSD_OP_SETXATTR, name, bl); + } + void cmpxattr(const char *name, uint8_t cmp_op, uint8_t cmp_mode, + const bufferlist& bl) { + add_xattr_cmp(CEPH_OSD_OP_CMPXATTR, name, cmp_op, cmp_mode, bl); + } + void rmxattr(const char *name) { + bufferlist bl; + add_xattr(CEPH_OSD_OP_RMXATTR, name, bl); + } + void setxattrs(map<string, bufferlist>& attrs) { + bufferlist bl; + encode(attrs, bl); + add_xattr(CEPH_OSD_OP_RESETXATTRS, 0, bl.length()); + } + void resetxattrs(const char *prefix, map<string, bufferlist>& attrs) { + bufferlist bl; + encode(attrs, bl); + add_xattr(CEPH_OSD_OP_RESETXATTRS, prefix, bl); + } + + // trivialmap + void tmap_update(bufferlist& bl) { + add_data(CEPH_OSD_OP_TMAPUP, 0, 0, bl); + } + + // objectmap + void omap_get_keys(const string &start_after, + uint64_t max_to_get, + std::set<std::string> *out_set, + bool *ptruncated, + int *prval) { + OSDOp &op = add_op(CEPH_OSD_OP_OMAPGETKEYS); + bufferlist bl; + encode(start_after, bl); + encode(max_to_get, bl); + op.op.extent.offset = 0; + op.op.extent.length = bl.length(); + op.indata.claim_append(bl); + if (prval || ptruncated || out_set) { + unsigned p = ops.size() - 1; + C_ObjectOperation_decodekeys *h = + new C_ObjectOperation_decodekeys(max_to_get, out_set, ptruncated, prval); + out_handler[p] = h; + out_bl[p] = &h->bl; + out_rval[p] = prval; + } + } + + void omap_get_vals(const string &start_after, + const string &filter_prefix, + uint64_t max_to_get, + std::map<std::string, bufferlist> *out_set, + bool *ptruncated, + int *prval) { + OSDOp &op = add_op(CEPH_OSD_OP_OMAPGETVALS); + bufferlist bl; + encode(start_after, bl); + encode(max_to_get, bl); + encode(filter_prefix, bl); + op.op.extent.offset = 0; + op.op.extent.length = bl.length(); + op.indata.claim_append(bl); + if (prval || out_set || ptruncated) { + unsigned p = ops.size() - 1; + C_ObjectOperation_decodevals *h = + new C_ObjectOperation_decodevals(max_to_get, out_set, ptruncated, prval); + out_handler[p] = h; + out_bl[p] = &h->bl; + out_rval[p] = prval; + } + } + + void omap_get_vals_by_keys(const std::set<std::string> &to_get, + std::map<std::string, bufferlist> *out_set, + int *prval) { + OSDOp &op = add_op(CEPH_OSD_OP_OMAPGETVALSBYKEYS); + bufferlist bl; + encode(to_get, bl); + op.op.extent.offset = 0; + op.op.extent.length = bl.length(); + op.indata.claim_append(bl); + if (prval || out_set) { + unsigned p = ops.size() - 1; + C_ObjectOperation_decodevals *h = + new C_ObjectOperation_decodevals(0, out_set, nullptr, prval); + out_handler[p] = h; + out_bl[p] = &h->bl; + out_rval[p] = prval; + } + } + + void omap_cmp(const std::map<std::string, pair<bufferlist,int> > &assertions, + int *prval) { + OSDOp &op = add_op(CEPH_OSD_OP_OMAP_CMP); + bufferlist bl; + encode(assertions, bl); + op.op.extent.offset = 0; + op.op.extent.length = bl.length(); + op.indata.claim_append(bl); + if (prval) { + unsigned p = ops.size() - 1; + out_rval[p] = prval; + } + } + + struct C_ObjectOperation_copyget : public Context { + bufferlist bl; + object_copy_cursor_t *cursor; + uint64_t *out_size; + ceph::real_time *out_mtime; + std::map<std::string,bufferlist> *out_attrs; + bufferlist *out_data, *out_omap_header, *out_omap_data; + vector<snapid_t> *out_snaps; + snapid_t *out_snap_seq; + uint32_t *out_flags; + uint32_t *out_data_digest; + uint32_t *out_omap_digest; + mempool::osd_pglog::vector<pair<osd_reqid_t, version_t> > *out_reqids; + mempool::osd_pglog::map<uint32_t, int> *out_reqid_return_codes; + uint64_t *out_truncate_seq; + uint64_t *out_truncate_size; + int *prval; + C_ObjectOperation_copyget(object_copy_cursor_t *c, + uint64_t *s, + ceph::real_time *m, + std::map<std::string,bufferlist> *a, + bufferlist *d, bufferlist *oh, + bufferlist *o, + std::vector<snapid_t> *osnaps, + snapid_t *osnap_seq, + uint32_t *flags, + uint32_t *dd, + uint32_t *od, + mempool::osd_pglog::vector<pair<osd_reqid_t, version_t> > *oreqids, + mempool::osd_pglog::map<uint32_t, int> *oreqid_return_codes, + uint64_t *otseq, + uint64_t *otsize, + int *r) + : cursor(c), + out_size(s), out_mtime(m), + out_attrs(a), out_data(d), out_omap_header(oh), + out_omap_data(o), out_snaps(osnaps), out_snap_seq(osnap_seq), + out_flags(flags), out_data_digest(dd), out_omap_digest(od), + out_reqids(oreqids), + out_reqid_return_codes(oreqid_return_codes), + out_truncate_seq(otseq), + out_truncate_size(otsize), + prval(r) {} + void finish(int r) override { + // reqids are copied on ENOENT + if (r < 0 && r != -ENOENT) + return; + try { + auto p = bl.cbegin(); + object_copy_data_t copy_reply; + decode(copy_reply, p); + if (r == -ENOENT) { + if (out_reqids) + *out_reqids = copy_reply.reqids; + return; + } + if (out_size) + *out_size = copy_reply.size; + if (out_mtime) + *out_mtime = ceph::real_clock::from_ceph_timespec(copy_reply.mtime); + if (out_attrs) + *out_attrs = copy_reply.attrs; + if (out_data) + out_data->claim_append(copy_reply.data); + if (out_omap_header) + out_omap_header->claim_append(copy_reply.omap_header); + if (out_omap_data) + *out_omap_data = copy_reply.omap_data; + if (out_snaps) + *out_snaps = copy_reply.snaps; + if (out_snap_seq) + *out_snap_seq = copy_reply.snap_seq; + if (out_flags) + *out_flags = copy_reply.flags; + if (out_data_digest) + *out_data_digest = copy_reply.data_digest; + if (out_omap_digest) + *out_omap_digest = copy_reply.omap_digest; + if (out_reqids) + *out_reqids = copy_reply.reqids; + if (out_reqid_return_codes) + *out_reqid_return_codes = copy_reply.reqid_return_codes; + if (out_truncate_seq) + *out_truncate_seq = copy_reply.truncate_seq; + if (out_truncate_size) + *out_truncate_size = copy_reply.truncate_size; + *cursor = copy_reply.cursor; + } catch (buffer::error& e) { + if (prval) + *prval = -EIO; + } + } + }; + + void copy_get(object_copy_cursor_t *cursor, + uint64_t max, + uint64_t *out_size, + ceph::real_time *out_mtime, + std::map<std::string,bufferlist> *out_attrs, + bufferlist *out_data, + bufferlist *out_omap_header, + bufferlist *out_omap_data, + vector<snapid_t> *out_snaps, + snapid_t *out_snap_seq, + uint32_t *out_flags, + uint32_t *out_data_digest, + uint32_t *out_omap_digest, + mempool::osd_pglog::vector<pair<osd_reqid_t, version_t> > *out_reqids, + mempool::osd_pglog::map<uint32_t, int> *out_reqid_return_codes, + uint64_t *truncate_seq, + uint64_t *truncate_size, + int *prval) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_COPY_GET); + osd_op.op.copy_get.max = max; + encode(*cursor, osd_op.indata); + encode(max, osd_op.indata); + unsigned p = ops.size() - 1; + out_rval[p] = prval; + C_ObjectOperation_copyget *h = + new C_ObjectOperation_copyget(cursor, out_size, out_mtime, + out_attrs, out_data, out_omap_header, + out_omap_data, out_snaps, out_snap_seq, + out_flags, out_data_digest, + out_omap_digest, out_reqids, + out_reqid_return_codes, truncate_seq, + truncate_size, prval); + out_bl[p] = &h->bl; + out_handler[p] = h; + } + + void undirty() { + add_op(CEPH_OSD_OP_UNDIRTY); + } + + struct C_ObjectOperation_isdirty : public Context { + bufferlist bl; + bool *pisdirty; + int *prval; + C_ObjectOperation_isdirty(bool *p, int *r) + : pisdirty(p), prval(r) {} + void finish(int r) override { + if (r < 0) + return; + try { + auto p = bl.cbegin(); + bool isdirty; + decode(isdirty, p); + if (pisdirty) + *pisdirty = isdirty; + } catch (buffer::error& e) { + if (prval) + *prval = -EIO; + } + } + }; + + void is_dirty(bool *pisdirty, int *prval) { + add_op(CEPH_OSD_OP_ISDIRTY); + unsigned p = ops.size() - 1; + out_rval[p] = prval; + C_ObjectOperation_isdirty *h = + new C_ObjectOperation_isdirty(pisdirty, prval); + out_bl[p] = &h->bl; + out_handler[p] = h; + } + + struct C_ObjectOperation_hit_set_ls : public Context { + bufferlist bl; + std::list< std::pair<time_t, time_t> > *ptls; + std::list< std::pair<ceph::real_time, ceph::real_time> > *putls; + int *prval; + C_ObjectOperation_hit_set_ls(std::list< std::pair<time_t, time_t> > *t, + std::list< std::pair<ceph::real_time, + ceph::real_time> > *ut, + int *r) + : ptls(t), putls(ut), prval(r) {} + void finish(int r) override { + if (r < 0) + return; + try { + auto p = bl.cbegin(); + std::list< std::pair<ceph::real_time, ceph::real_time> > ls; + decode(ls, p); + if (ptls) { + ptls->clear(); + for (auto p = ls.begin(); p != ls.end(); ++p) + // round initial timestamp up to the next full second to + // keep this a valid interval. + ptls->push_back( + make_pair(ceph::real_clock::to_time_t( + ceph::ceil(p->first, + // Sadly, no time literals until C++14. + std::chrono::seconds(1))), + ceph::real_clock::to_time_t(p->second))); + } + if (putls) + putls->swap(ls); + } catch (buffer::error& e) { + r = -EIO; + } + if (prval) + *prval = r; + } + }; + + /** + * list available HitSets. + * + * We will get back a list of time intervals. Note that the most + * recent range may have an empty end timestamp if it is still + * accumulating. + * + * @param pls [out] list of time intervals + * @param prval [out] return value + */ + void hit_set_ls(std::list< std::pair<time_t, time_t> > *pls, int *prval) { + add_op(CEPH_OSD_OP_PG_HITSET_LS); + unsigned p = ops.size() - 1; + out_rval[p] = prval; + C_ObjectOperation_hit_set_ls *h = + new C_ObjectOperation_hit_set_ls(pls, NULL, prval); + out_bl[p] = &h->bl; + out_handler[p] = h; + } + void hit_set_ls(std::list<std::pair<ceph::real_time, ceph::real_time> > *pls, + int *prval) { + add_op(CEPH_OSD_OP_PG_HITSET_LS); + unsigned p = ops.size() - 1; + out_rval[p] = prval; + C_ObjectOperation_hit_set_ls *h = + new C_ObjectOperation_hit_set_ls(NULL, pls, prval); + out_bl[p] = &h->bl; + out_handler[p] = h; + } + + /** + * get HitSet + * + * Return an encoded HitSet that includes the provided time + * interval. + * + * @param stamp [in] timestamp + * @param pbl [out] target buffer for encoded HitSet + * @param prval [out] return value + */ + void hit_set_get(ceph::real_time stamp, bufferlist *pbl, int *prval) { + OSDOp& op = add_op(CEPH_OSD_OP_PG_HITSET_GET); + op.op.hit_set_get.stamp = ceph::real_clock::to_ceph_timespec(stamp); + unsigned p = ops.size() - 1; + out_rval[p] = prval; + out_bl[p] = pbl; + } + + void omap_get_header(bufferlist *bl, int *prval) { + add_op(CEPH_OSD_OP_OMAPGETHEADER); + unsigned p = ops.size() - 1; + out_bl[p] = bl; + out_rval[p] = prval; + } + + void omap_set(const map<string, bufferlist> &map) { + bufferlist bl; + encode(map, bl); + add_data(CEPH_OSD_OP_OMAPSETVALS, 0, bl.length(), bl); + } + + void omap_set_header(bufferlist &bl) { + add_data(CEPH_OSD_OP_OMAPSETHEADER, 0, bl.length(), bl); + } + + void omap_clear() { + add_op(CEPH_OSD_OP_OMAPCLEAR); + } + + void omap_rm_keys(const std::set<std::string> &to_remove) { + bufferlist bl; + encode(to_remove, bl); + add_data(CEPH_OSD_OP_OMAPRMKEYS, 0, bl.length(), bl); + } + + // object classes + void call(const char *cname, const char *method, bufferlist &indata) { + add_call(CEPH_OSD_OP_CALL, cname, method, indata, NULL, NULL, NULL); + } + + void call(const char *cname, const char *method, bufferlist &indata, + bufferlist *outdata, Context *ctx, int *prval) { + add_call(CEPH_OSD_OP_CALL, cname, method, indata, outdata, ctx, prval); + } + + // watch/notify + void watch(uint64_t cookie, __u8 op, uint32_t timeout = 0) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_WATCH); + osd_op.op.watch.cookie = cookie; + osd_op.op.watch.op = op; + osd_op.op.watch.timeout = timeout; + } + + void notify(uint64_t cookie, uint32_t prot_ver, uint32_t timeout, + bufferlist &bl, bufferlist *inbl) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_NOTIFY); + osd_op.op.notify.cookie = cookie; + encode(prot_ver, *inbl); + encode(timeout, *inbl); + encode(bl, *inbl); + osd_op.indata.append(*inbl); + } + + void notify_ack(uint64_t notify_id, uint64_t cookie, + bufferlist& reply_bl) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_NOTIFY_ACK); + bufferlist bl; + encode(notify_id, bl); + encode(cookie, bl); + encode(reply_bl, bl); + osd_op.indata.append(bl); + } + + void list_watchers(list<obj_watch_t> *out, + int *prval) { + (void)add_op(CEPH_OSD_OP_LIST_WATCHERS); + if (prval || out) { + unsigned p = ops.size() - 1; + C_ObjectOperation_decodewatchers *h = + new C_ObjectOperation_decodewatchers(out, prval); + out_handler[p] = h; + out_bl[p] = &h->bl; + out_rval[p] = prval; + } + } + + void list_snaps(librados::snap_set_t *out, int *prval) { + (void)add_op(CEPH_OSD_OP_LIST_SNAPS); + if (prval || out) { + unsigned p = ops.size() - 1; + C_ObjectOperation_decodesnaps *h = + new C_ObjectOperation_decodesnaps(out, prval); + out_handler[p] = h; + out_bl[p] = &h->bl; + out_rval[p] = prval; + } + } + + void assert_version(uint64_t ver) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_ASSERT_VER); + osd_op.op.assert_ver.ver = ver; + } + + void cmpxattr(const char *name, const bufferlist& val, + int op, int mode) { + add_xattr(CEPH_OSD_OP_CMPXATTR, name, val); + OSDOp& o = *ops.rbegin(); + o.op.xattr.cmp_op = op; + o.op.xattr.cmp_mode = mode; + } + + void rollback(uint64_t snapid) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_ROLLBACK); + osd_op.op.snap.snapid = snapid; + } + + void copy_from(object_t src, snapid_t snapid, object_locator_t src_oloc, + version_t src_version, unsigned flags, + unsigned src_fadvise_flags) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_COPY_FROM); + osd_op.op.copy_from.snapid = snapid; + osd_op.op.copy_from.src_version = src_version; + osd_op.op.copy_from.flags = flags; + osd_op.op.copy_from.src_fadvise_flags = src_fadvise_flags; + encode(src, osd_op.indata); + encode(src_oloc, osd_op.indata); + } + + /** + * writeback content to backing tier + * + * If object is marked dirty in the cache tier, write back content + * to backing tier. If the object is clean this is a no-op. + * + * If writeback races with an update, the update will block. + * + * use with IGNORE_CACHE to avoid triggering promote. + */ + void cache_flush() { + add_op(CEPH_OSD_OP_CACHE_FLUSH); + } + + /** + * writeback content to backing tier + * + * If object is marked dirty in the cache tier, write back content + * to backing tier. If the object is clean this is a no-op. + * + * If writeback races with an update, return EAGAIN. Requires that + * the SKIPRWLOCKS flag be set. + * + * use with IGNORE_CACHE to avoid triggering promote. + */ + void cache_try_flush() { + add_op(CEPH_OSD_OP_CACHE_TRY_FLUSH); + } + + /** + * evict object from cache tier + * + * If object is marked clean, remove the object from the cache tier. + * Otherwise, return EBUSY. + * + * use with IGNORE_CACHE to avoid triggering promote. + */ + void cache_evict() { + add_op(CEPH_OSD_OP_CACHE_EVICT); + } + + /* + * Extensible tier + */ + void set_redirect(object_t tgt, snapid_t snapid, object_locator_t tgt_oloc, + version_t tgt_version, int flag) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_SET_REDIRECT); + osd_op.op.copy_from.snapid = snapid; + osd_op.op.copy_from.src_version = tgt_version; + encode(tgt, osd_op.indata); + encode(tgt_oloc, osd_op.indata); + set_last_op_flags(flag); + } + + void set_chunk(uint64_t src_offset, uint64_t src_length, object_locator_t tgt_oloc, + object_t tgt_oid, uint64_t tgt_offset, int flag) { + OSDOp& osd_op = add_op(CEPH_OSD_OP_SET_CHUNK); + encode(src_offset, osd_op.indata); + encode(src_length, osd_op.indata); + encode(tgt_oloc, osd_op.indata); + encode(tgt_oid, osd_op.indata); + encode(tgt_offset, osd_op.indata); + set_last_op_flags(flag); + } + + void tier_promote() { + add_op(CEPH_OSD_OP_TIER_PROMOTE); + } + + void unset_manifest() { + add_op(CEPH_OSD_OP_UNSET_MANIFEST); + } + + void set_alloc_hint(uint64_t expected_object_size, + uint64_t expected_write_size, + uint32_t flags) { + add_alloc_hint(CEPH_OSD_OP_SETALLOCHINT, expected_object_size, + expected_write_size, flags); + + // CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed + // not worth a feature bit. Set FAILOK per-op flag to make + // sure older osds don't trip over an unsupported opcode. + set_last_op_flags(CEPH_OSD_OP_FLAG_FAILOK); + } + + void dup(vector<OSDOp>& sops) { + ops = sops; + out_bl.resize(sops.size()); + out_handler.resize(sops.size()); + out_rval.resize(sops.size()); + for (uint32_t i = 0; i < sops.size(); i++) { + out_bl[i] = &sops[i].outdata; + out_handler[i] = NULL; + out_rval[i] = &sops[i].rval; + } + } + + /** + * Pin/unpin an object in cache tier + */ + void cache_pin() { + add_op(CEPH_OSD_OP_CACHE_PIN); + } + + void cache_unpin() { + add_op(CEPH_OSD_OP_CACHE_UNPIN); + } +}; + + +// ---------------- + + +class Objecter : public md_config_obs_t, public Dispatcher { +public: + // config observer bits + const char** get_tracked_conf_keys() const override; + void handle_conf_change(const ConfigProxy& conf, + const std::set <std::string> &changed) override; + +public: + Messenger *messenger; + MonClient *monc; + Finisher *finisher; + ZTracer::Endpoint trace_endpoint; +private: + OSDMap *osdmap; +public: + using Dispatcher::cct; + std::multimap<string,string> crush_location; + + std::atomic<bool> initialized{false}; + +private: + std::atomic<uint64_t> last_tid{0}; + std::atomic<unsigned> inflight_ops{0}; + std::atomic<int> client_inc{-1}; + uint64_t max_linger_id; + std::atomic<unsigned> num_in_flight{0}; + std::atomic<int> global_op_flags{0}; // flags which are applied to each IO op + bool keep_balanced_budget; + bool honor_osdmap_full; + bool osdmap_full_try; + + // If this is true, accumulate a set of blacklisted entities + // to be drained by consume_blacklist_events. + bool blacklist_events_enabled; + std::set<entity_addr_t> blacklist_events; + +public: + void maybe_request_map(); + + void enable_blacklist_events(); +private: + + void _maybe_request_map(); + + version_t last_seen_osdmap_version; + version_t last_seen_pgmap_version; + + mutable std::shared_mutex rwlock; + using lock_guard = std::lock_guard<decltype(rwlock)>; + using unique_lock = std::unique_lock<decltype(rwlock)>; + using shared_lock = boost::shared_lock<decltype(rwlock)>; + using shunique_lock = ceph::shunique_lock<decltype(rwlock)>; + ceph::timer<ceph::coarse_mono_clock> timer; + + PerfCounters *logger; + + uint64_t tick_event; + + void start_tick(); + void tick(); + void update_crush_location(); + + class RequestStateHook; + + RequestStateHook *m_request_state_hook; + +public: + /*** track pending operations ***/ + // read + + struct OSDSession; + + struct op_target_t { + int flags = 0; + + epoch_t epoch = 0; ///< latest epoch we calculated the mapping + + object_t base_oid; + object_locator_t base_oloc; + object_t target_oid; + object_locator_t target_oloc; + + ///< true if we are directed at base_pgid, not base_oid + bool precalc_pgid = false; + + ///< true if we have ever mapped to a valid pool + bool pool_ever_existed = false; + + ///< explcit pg target, if any + pg_t base_pgid; + + pg_t pgid; ///< last (raw) pg we mapped to + spg_t actual_pgid; ///< last (actual) spg_t we mapped to + unsigned pg_num = 0; ///< last pg_num we mapped to + unsigned pg_num_mask = 0; ///< last pg_num_mask we mapped to + unsigned pg_num_pending = 0; ///< last pg_num we mapped to + vector<int> up; ///< set of up osds for last pg we mapped to + vector<int> acting; ///< set of acting osds for last pg we mapped to + int up_primary = -1; ///< last up_primary we mapped to + int acting_primary = -1; ///< last acting_primary we mapped to + int size = -1; ///< the size of the pool when were were last mapped + int min_size = -1; ///< the min size of the pool when were were last mapped + bool sort_bitwise = false; ///< whether the hobject_t sort order is bitwise + bool recovery_deletes = false; ///< whether the deletes are performed during recovery instead of peering + + bool used_replica = false; + bool paused = false; + + int osd = -1; ///< the final target osd, or -1 + + epoch_t last_force_resend = 0; + + op_target_t(object_t oid, object_locator_t oloc, int flags) + : flags(flags), + base_oid(oid), + base_oloc(oloc) + {} + + explicit op_target_t(pg_t pgid) + : base_oloc(pgid.pool(), pgid.ps()), + precalc_pgid(true), + base_pgid(pgid) + {} + + op_target_t() = default; + + hobject_t get_hobj() { + return hobject_t(target_oid, + target_oloc.key, + CEPH_NOSNAP, + target_oloc.hash >= 0 ? target_oloc.hash : pgid.ps(), + target_oloc.pool, + target_oloc.nspace); + } + + bool contained_by(const hobject_t& begin, const hobject_t& end) { + hobject_t h = get_hobj(); + int r = cmp(h, begin); + return r == 0 || (r > 0 && h < end); + } + + void dump(Formatter *f) const; + }; + + struct Op : public RefCountedObject { + OSDSession *session; + int incarnation; + + op_target_t target; + + ConnectionRef con; // for rx buffer only + uint64_t features; // explicitly specified op features + + vector<OSDOp> ops; + + snapid_t snapid; + SnapContext snapc; + ceph::real_time mtime; + + bufferlist *outbl; + vector<bufferlist*> out_bl; + vector<Context*> out_handler; + vector<int*> out_rval; + + int priority; + Context *onfinish; + uint64_t ontimeout; + + ceph_tid_t tid; + int attempts; + + version_t *objver; + epoch_t *reply_epoch; + + ceph::coarse_mono_time stamp; + + epoch_t map_dne_bound; + + int budget; + + /// true if we should resend this message on failure + bool should_resend; + + /// true if the throttle budget is get/put on a series of OPs, + /// instead of per OP basis, when this flag is set, the budget is + /// acquired before sending the very first OP of the series and + /// released upon receiving the last OP reply. + bool ctx_budgeted; + + int *data_offset; + + osd_reqid_t reqid; // explicitly setting reqid + ZTracer::Trace trace; + + Op(const object_t& o, const object_locator_t& ol, vector<OSDOp>& op, + int f, Context *fin, version_t *ov, int *offset = NULL, + ZTracer::Trace *parent_trace = nullptr) : + session(NULL), incarnation(0), + target(o, ol, f), + con(NULL), + features(CEPH_FEATURES_SUPPORTED_DEFAULT), + snapid(CEPH_NOSNAP), + outbl(NULL), + priority(0), + onfinish(fin), + ontimeout(0), + tid(0), + attempts(0), + objver(ov), + reply_epoch(NULL), + map_dne_bound(0), + budget(-1), + should_resend(true), + ctx_budgeted(false), + data_offset(offset) { + ops.swap(op); + + /* initialize out_* to match op vector */ + out_bl.resize(ops.size()); + out_rval.resize(ops.size()); + out_handler.resize(ops.size()); + for (unsigned i = 0; i < ops.size(); i++) { + out_bl[i] = NULL; + out_handler[i] = NULL; + out_rval[i] = NULL; + } + + if (target.base_oloc.key == o) + target.base_oloc.key.clear(); + + if (parent_trace && parent_trace->valid()) { + trace.init("op", nullptr, parent_trace); + trace.event("start"); + } + } + + bool operator<(const Op& other) const { + return tid < other.tid; + } + + bool respects_full() const { + return + (target.flags & (CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_RWORDERED)) && + !(target.flags & (CEPH_OSD_FLAG_FULL_TRY | CEPH_OSD_FLAG_FULL_FORCE)); + } + + private: + ~Op() override { + while (!out_handler.empty()) { + delete out_handler.back(); + out_handler.pop_back(); + } + trace.event("finish"); + } + }; + + struct C_Op_Map_Latest : public Context { + Objecter *objecter; + ceph_tid_t tid; + version_t latest; + C_Op_Map_Latest(Objecter *o, ceph_tid_t t) : objecter(o), tid(t), + latest(0) {} + void finish(int r) override; + }; + + struct C_Command_Map_Latest : public Context { + Objecter *objecter; + uint64_t tid; + version_t latest; + C_Command_Map_Latest(Objecter *o, ceph_tid_t t) : objecter(o), tid(t), + latest(0) {} + void finish(int r) override; + }; + + struct C_Stat : public Context { + bufferlist bl; + uint64_t *psize; + ceph::real_time *pmtime; + Context *fin; + C_Stat(uint64_t *ps, ceph::real_time *pm, Context *c) : + psize(ps), pmtime(pm), fin(c) {} + void finish(int r) override { + if (r >= 0) { + auto p = bl.cbegin(); + uint64_t s; + ceph::real_time m; + decode(s, p); + decode(m, p); + if (psize) + *psize = s; + if (pmtime) + *pmtime = m; + } + fin->complete(r); + } + }; + + struct C_GetAttrs : public Context { + bufferlist bl; + map<string,bufferlist>& attrset; + Context *fin; + C_GetAttrs(map<string, bufferlist>& set, Context *c) : attrset(set), + fin(c) {} + void finish(int r) override { + if (r >= 0) { + auto p = bl.cbegin(); + decode(attrset, p); + } + fin->complete(r); + } + }; + + + // Pools and statistics + struct NListContext { + collection_list_handle_t pos; + + // these are for !sortbitwise compat only + int current_pg = 0; + int starting_pg_num = 0; + bool sort_bitwise = false; + + bool at_end_of_pool = false; ///< publicly visible end flag + + int64_t pool_id = -1; + int pool_snap_seq = 0; + uint64_t max_entries = 0; + string nspace; + + bufferlist bl; // raw data read to here + std::list<librados::ListObjectImpl> list; + + bufferlist filter; + + bufferlist extra_info; + + // The budget associated with this context, once it is set (>= 0), + // the budget is not get/released on OP basis, instead the budget + // is acquired before sending the first OP and released upon receiving + // the last op reply. + int ctx_budget = -1; + + bool at_end() const { + return at_end_of_pool; + } + + uint32_t get_pg_hash_position() const { + return pos.get_hash(); + } + }; + + struct C_NList : public Context { + NListContext *list_context; + Context *final_finish; + Objecter *objecter; + epoch_t epoch; + C_NList(NListContext *lc, Context * finish, Objecter *ob) : + list_context(lc), final_finish(finish), objecter(ob), epoch(0) {} + void finish(int r) override { + if (r >= 0) { + objecter->_nlist_reply(list_context, r, final_finish, epoch); + } else { + final_finish->complete(r); + } + } + }; + + struct PoolStatOp { + ceph_tid_t tid; + list<string> pools; + + map<string,pool_stat_t> *pool_stats; + bool *per_pool; + Context *onfinish; + uint64_t ontimeout; + + ceph::coarse_mono_time last_submit; + }; + + struct StatfsOp { + ceph_tid_t tid; + struct ceph_statfs *stats; + boost::optional<int64_t> data_pool; + Context *onfinish; + uint64_t ontimeout; + + ceph::coarse_mono_time last_submit; + }; + + struct PoolOp { + ceph_tid_t tid; + int64_t pool; + string name; + Context *onfinish; + uint64_t ontimeout; + int pool_op; + int16_t crush_rule; + snapid_t snapid; + bufferlist *blp; + + ceph::coarse_mono_time last_submit; + PoolOp() : tid(0), pool(0), onfinish(NULL), ontimeout(0), pool_op(0), + crush_rule(0), snapid(0), blp(NULL) {} + }; + + // -- osd commands -- + struct CommandOp : public RefCountedObject { + OSDSession *session = nullptr; + ceph_tid_t tid = 0; + vector<string> cmd; + bufferlist inbl; + bufferlist *poutbl = nullptr; + string *prs = nullptr; + + // target_osd == -1 means target_pg is valid + const int target_osd = -1; + const pg_t target_pg; + + op_target_t target; + + epoch_t map_dne_bound = 0; + int map_check_error = 0; // error to return if map check fails + const char *map_check_error_str = nullptr; + + Context *onfinish = nullptr; + uint64_t ontimeout = 0; + ceph::coarse_mono_time last_submit; + + CommandOp( + int target_osd, + const vector<string> &cmd, + bufferlist inbl, + bufferlist *poutbl, + string *prs, + Context *onfinish) + : cmd(cmd), + inbl(inbl), + poutbl(poutbl), + prs(prs), + target_osd(target_osd), + onfinish(onfinish) {} + + CommandOp( + pg_t pgid, + const vector<string> &cmd, + bufferlist inbl, + bufferlist *poutbl, + string *prs, + Context *onfinish) + : cmd(cmd), + inbl(inbl), + poutbl(poutbl), + prs(prs), + target_pg(pgid), + target(pgid), + onfinish(onfinish) {} + + }; + + void submit_command(CommandOp *c, ceph_tid_t *ptid); + int _calc_command_target(CommandOp *c, shunique_lock &sul); + void _assign_command_session(CommandOp *c, shunique_lock &sul); + void _send_command(CommandOp *c); + int command_op_cancel(OSDSession *s, ceph_tid_t tid, int r); + void _finish_command(CommandOp *c, int r, string rs); + void handle_command_reply(MCommandReply *m); + + + // -- lingering ops -- + + struct WatchContext { + // this simply mirrors librados WatchCtx2 + virtual void handle_notify(uint64_t notify_id, + uint64_t cookie, + uint64_t notifier_id, + bufferlist& bl) = 0; + virtual void handle_error(uint64_t cookie, int err) = 0; + virtual ~WatchContext() {} + }; + + struct LingerOp : public RefCountedObject { + uint64_t linger_id; + + op_target_t target; + + snapid_t snap; + SnapContext snapc; + ceph::real_time mtime; + + vector<OSDOp> ops; + bufferlist inbl; + bufferlist *poutbl; + version_t *pobjver; + + bool is_watch; + ceph::coarse_mono_time watch_valid_thru; ///< send time for last acked ping + int last_error; ///< error from last failed ping|reconnect, if any + std::shared_mutex watch_lock; + using lock_guard = std::unique_lock<decltype(watch_lock)>; + using unique_lock = std::unique_lock<decltype(watch_lock)>; + using shared_lock = boost::shared_lock<decltype(watch_lock)>; + using shunique_lock = ceph::shunique_lock<decltype(watch_lock)>; + + // queue of pending async operations, with the timestamp of + // when they were queued. + list<ceph::coarse_mono_time> watch_pending_async; + + uint32_t register_gen; + bool registered; + bool canceled; + Context *on_reg_commit; + + // we trigger these from an async finisher + Context *on_notify_finish; + bufferlist *notify_result_bl; + uint64_t notify_id; + + WatchContext *watch_context; + + OSDSession *session; + + Objecter *objecter; + int ctx_budget; + ceph_tid_t register_tid; + ceph_tid_t ping_tid; + epoch_t map_dne_bound; + + void _queued_async() { + // watch_lock ust be locked unique + watch_pending_async.push_back(ceph::coarse_mono_clock::now()); + } + void finished_async() { + unique_lock l(watch_lock); + ceph_assert(!watch_pending_async.empty()); + watch_pending_async.pop_front(); + } + + explicit LingerOp(Objecter *o) : linger_id(0), + target(object_t(), object_locator_t(), 0), + snap(CEPH_NOSNAP), poutbl(NULL), pobjver(NULL), + is_watch(false), last_error(0), + register_gen(0), + registered(false), + canceled(false), + on_reg_commit(NULL), + on_notify_finish(NULL), + notify_result_bl(NULL), + notify_id(0), + watch_context(NULL), + session(NULL), + objecter(o), + ctx_budget(-1), + register_tid(0), + ping_tid(0), + map_dne_bound(0) {} + + const LingerOp &operator=(const LingerOp& r) = delete; + LingerOp(const LingerOp& o) = delete; + + uint64_t get_cookie() { + return reinterpret_cast<uint64_t>(this); + } + + private: + ~LingerOp() override { + delete watch_context; + } + }; + + struct C_Linger_Commit : public Context { + Objecter *objecter; + LingerOp *info; + bufferlist outbl; // used for notify only + C_Linger_Commit(Objecter *o, LingerOp *l) : objecter(o), info(l) { + info->get(); + } + ~C_Linger_Commit() override { + info->put(); + } + void finish(int r) override { + objecter->_linger_commit(info, r, outbl); + } + }; + + struct C_Linger_Reconnect : public Context { + Objecter *objecter; + LingerOp *info; + C_Linger_Reconnect(Objecter *o, LingerOp *l) : objecter(o), info(l) { + info->get(); + } + ~C_Linger_Reconnect() override { + info->put(); + } + void finish(int r) override { + objecter->_linger_reconnect(info, r); + } + }; + + struct C_Linger_Ping : public Context { + Objecter *objecter; + LingerOp *info; + ceph::coarse_mono_time sent; + uint32_t register_gen; + C_Linger_Ping(Objecter *o, LingerOp *l) + : objecter(o), info(l), register_gen(info->register_gen) { + info->get(); + } + ~C_Linger_Ping() override { + info->put(); + } + void finish(int r) override { + objecter->_linger_ping(info, r, sent, register_gen); + } + }; + + struct C_Linger_Map_Latest : public Context { + Objecter *objecter; + uint64_t linger_id; + version_t latest; + C_Linger_Map_Latest(Objecter *o, uint64_t id) : + objecter(o), linger_id(id), latest(0) {} + void finish(int r) override; + }; + + // -- osd sessions -- + struct OSDBackoff { + spg_t pgid; + uint64_t id; + hobject_t begin, end; + }; + + struct OSDSession : public RefCountedObject { + std::shared_mutex lock; + using lock_guard = std::lock_guard<decltype(lock)>; + using unique_lock = std::unique_lock<decltype(lock)>; + using shared_lock = boost::shared_lock<decltype(lock)>; + using shunique_lock = ceph::shunique_lock<decltype(lock)>; + + // pending ops + map<ceph_tid_t,Op*> ops; + map<uint64_t, LingerOp*> linger_ops; + map<ceph_tid_t,CommandOp*> command_ops; + + // backoffs + map<spg_t,map<hobject_t,OSDBackoff>> backoffs; + map<uint64_t,OSDBackoff*> backoffs_by_id; + + int osd; + int incarnation; + ConnectionRef con; + int num_locks; + std::unique_ptr<std::mutex[]> completion_locks; + using unique_completion_lock = std::unique_lock< + decltype(completion_locks)::element_type>; + + + OSDSession(CephContext *cct, int o) : + osd(o), incarnation(0), con(NULL), + num_locks(cct->_conf->objecter_completion_locks_per_session), + completion_locks(new std::mutex[num_locks]) {} + + ~OSDSession() override; + + bool is_homeless() { return (osd == -1); } + + unique_completion_lock get_lock(object_t& oid); + }; + map<int,OSDSession*> osd_sessions; + + bool osdmap_full_flag() const; + bool osdmap_pool_full(const int64_t pool_id) const; + + private: + + /** + * Test pg_pool_t::FLAG_FULL on a pool + * + * @return true if the pool exists and has the flag set, or + * the global full flag is set, else false + */ + bool _osdmap_pool_full(const int64_t pool_id) const; + bool _osdmap_pool_full(const pg_pool_t &p) const; + void update_pool_full_map(map<int64_t, bool>& pool_full_map); + + map<uint64_t, LingerOp*> linger_ops; + // we use this just to confirm a cookie is valid before dereferencing the ptr + set<LingerOp*> linger_ops_set; + + map<ceph_tid_t,PoolStatOp*> poolstat_ops; + map<ceph_tid_t,StatfsOp*> statfs_ops; + map<ceph_tid_t,PoolOp*> pool_ops; + std::atomic<unsigned> num_homeless_ops{0}; + + OSDSession *homeless_session; + + // ops waiting for an osdmap with a new pool or confirmation that + // the pool does not exist (may be expanded to other uses later) + map<uint64_t, LingerOp*> check_latest_map_lingers; + map<ceph_tid_t, Op*> check_latest_map_ops; + map<ceph_tid_t, CommandOp*> check_latest_map_commands; + + map<epoch_t,list< pair<Context*, int> > > waiting_for_map; + + ceph::timespan mon_timeout; + ceph::timespan osd_timeout; + + MOSDOp *_prepare_osd_op(Op *op); + void _send_op(Op *op); + void _send_op_account(Op *op); + void _cancel_linger_op(Op *op); + void _finish_op(Op *op, int r); + static bool is_pg_changed( + int oldprimary, + const vector<int>& oldacting, + int newprimary, + const vector<int>& newacting, + bool any_change=false); + enum recalc_op_target_result { + RECALC_OP_TARGET_NO_ACTION = 0, + RECALC_OP_TARGET_NEED_RESEND, + RECALC_OP_TARGET_POOL_DNE, + RECALC_OP_TARGET_OSD_DNE, + RECALC_OP_TARGET_OSD_DOWN, + }; + bool _osdmap_full_flag() const; + bool _osdmap_has_pool_full() const; + void _prune_snapc( + const mempool::osdmap::map<int64_t, OSDMap::snap_interval_set_t>& new_removed_snaps, + Op *op); + + bool target_should_be_paused(op_target_t *op); + int _calc_target(op_target_t *t, Connection *con, + bool any_change = false); + int _map_session(op_target_t *op, OSDSession **s, + shunique_lock& lc); + + void _session_op_assign(OSDSession *s, Op *op); + void _session_op_remove(OSDSession *s, Op *op); + void _session_linger_op_assign(OSDSession *to, LingerOp *op); + void _session_linger_op_remove(OSDSession *from, LingerOp *op); + void _session_command_op_assign(OSDSession *to, CommandOp *op); + void _session_command_op_remove(OSDSession *from, CommandOp *op); + + int _assign_op_target_session(Op *op, shunique_lock& lc, + bool src_session_locked, + bool dst_session_locked); + int _recalc_linger_op_target(LingerOp *op, shunique_lock& lc); + + void _linger_submit(LingerOp *info, shunique_lock& sul); + void _send_linger(LingerOp *info, shunique_lock& sul); + void _linger_commit(LingerOp *info, int r, bufferlist& outbl); + void _linger_reconnect(LingerOp *info, int r); + void _send_linger_ping(LingerOp *info); + void _linger_ping(LingerOp *info, int r, ceph::coarse_mono_time sent, + uint32_t register_gen); + int _normalize_watch_error(int r); + + friend class C_DoWatchError; +public: + void linger_callback_flush(Context *ctx) { + finisher->queue(ctx); + } + +private: + void _check_op_pool_dne(Op *op, unique_lock *sl); + void _send_op_map_check(Op *op); + void _op_cancel_map_check(Op *op); + void _check_linger_pool_dne(LingerOp *op, bool *need_unregister); + void _send_linger_map_check(LingerOp *op); + void _linger_cancel_map_check(LingerOp *op); + void _check_command_map_dne(CommandOp *op); + void _send_command_map_check(CommandOp *op); + void _command_cancel_map_check(CommandOp *op); + + void _kick_requests(OSDSession *session, map<uint64_t, LingerOp *>& lresend); + void _linger_ops_resend(map<uint64_t, LingerOp *>& lresend, unique_lock& ul); + + int _get_session(int osd, OSDSession **session, shunique_lock& sul); + void put_session(OSDSession *s); + void get_session(OSDSession *s); + void _reopen_session(OSDSession *session); + void close_session(OSDSession *session); + + void _nlist_reply(NListContext *list_context, int r, Context *final_finish, + epoch_t reply_epoch); + + void resend_mon_ops(); + + /** + * handle a budget for in-flight ops + * budget is taken whenever an op goes into the ops map + * and returned whenever an op is removed from the map + * If throttle_op needs to throttle it will unlock client_lock. + */ + int calc_op_budget(const vector<OSDOp>& ops); + void _throttle_op(Op *op, shunique_lock& sul, int op_size = 0); + int _take_op_budget(Op *op, shunique_lock& sul) { + ceph_assert(sul && sul.mutex() == &rwlock); + int op_budget = calc_op_budget(op->ops); + if (keep_balanced_budget) { + _throttle_op(op, sul, op_budget); + } else { // update take_linger_budget to match this! + op_throttle_bytes.take(op_budget); + op_throttle_ops.take(1); + } + op->budget = op_budget; + return op_budget; + } + int take_linger_budget(LingerOp *info); + friend class WatchContext; // to invoke put_up_budget_bytes + void put_op_budget_bytes(int op_budget) { + ceph_assert(op_budget >= 0); + op_throttle_bytes.put(op_budget); + op_throttle_ops.put(1); + } + void put_nlist_context_budget(NListContext *list_context); + Throttle op_throttle_bytes, op_throttle_ops; + + public: + Objecter(CephContext *cct_, Messenger *m, MonClient *mc, + Finisher *fin, + double mon_timeout, + double osd_timeout) : + Dispatcher(cct_), messenger(m), monc(mc), finisher(fin), + trace_endpoint("0.0.0.0", 0, "Objecter"), + osdmap(new OSDMap), + max_linger_id(0), + keep_balanced_budget(false), honor_osdmap_full(true), osdmap_full_try(false), + blacklist_events_enabled(false), + last_seen_osdmap_version(0), last_seen_pgmap_version(0), + logger(NULL), tick_event(0), m_request_state_hook(NULL), + homeless_session(new OSDSession(cct, -1)), + mon_timeout(ceph::make_timespan(mon_timeout)), + osd_timeout(ceph::make_timespan(osd_timeout)), + op_throttle_bytes(cct, "objecter_bytes", + cct->_conf->objecter_inflight_op_bytes), + op_throttle_ops(cct, "objecter_ops", cct->_conf->objecter_inflight_ops), + epoch_barrier(0), + retry_writes_after_first_reply(cct->_conf->objecter_retry_writes_after_first_reply) + { } + ~Objecter() override; + + void init(); + void start(const OSDMap *o = nullptr); + void shutdown(); + + // These two templates replace osdmap_(get)|(put)_read. Simply wrap + // whatever functionality you want to use the OSDMap in a lambda like: + // + // with_osdmap([](const OSDMap& o) { o.do_stuff(); }); + // + // or + // + // auto t = with_osdmap([&](const OSDMap& o) { return o.lookup_stuff(x); }); + // + // Do not call into something that will try to lock the OSDMap from + // here or you will have great woe and misery. + + template<typename Callback, typename...Args> + auto with_osdmap(Callback&& cb, Args&&... args) const -> + decltype(cb(*osdmap, std::forward<Args>(args)...)) { + shared_lock l(rwlock); + return std::forward<Callback>(cb)(*osdmap, std::forward<Args>(args)...); + } + + + /** + * Tell the objecter to throttle outgoing ops according to its + * budget (in _conf). If you do this, ops can block, in + * which case it will unlock client_lock and sleep until + * incoming messages reduce the used budget low enough for + * the ops to continue going; then it will lock client_lock again. + */ + void set_balanced_budget() { keep_balanced_budget = true; } + void unset_balanced_budget() { keep_balanced_budget = false; } + + void set_honor_osdmap_full() { honor_osdmap_full = true; } + void unset_honor_osdmap_full() { honor_osdmap_full = false; } + + void set_osdmap_full_try() { osdmap_full_try = true; } + void unset_osdmap_full_try() { osdmap_full_try = false; } + + void _scan_requests( + OSDSession *s, + bool skipped_map, + bool cluster_full, + map<int64_t, bool> *pool_full_map, + map<ceph_tid_t, Op*>& need_resend, + list<LingerOp*>& need_resend_linger, + map<ceph_tid_t, CommandOp*>& need_resend_command, + shunique_lock& sul, + const mempool::osdmap::map<int64_t,OSDMap::snap_interval_set_t> *gap_removed_snaps); + + int64_t get_object_hash_position(int64_t pool, const string& key, + const string& ns); + int64_t get_object_pg_hash_position(int64_t pool, const string& key, + const string& ns); + + // messages + public: + bool ms_dispatch(Message *m) override; + bool ms_can_fast_dispatch_any() const override { + return true; + } + bool ms_can_fast_dispatch(const Message *m) const override { + switch (m->get_type()) { + case CEPH_MSG_OSD_OPREPLY: + case CEPH_MSG_WATCH_NOTIFY: + return true; + default: + return false; + } + } + void ms_fast_dispatch(Message *m) override { + if (!ms_dispatch(m)) { + m->put(); + } + } + + void handle_osd_op_reply(class MOSDOpReply *m); + void handle_osd_backoff(class MOSDBackoff *m); + void handle_watch_notify(class MWatchNotify *m); + void handle_osd_map(class MOSDMap *m); + void wait_for_osd_map(); + + /** + * Get list of entities blacklisted since this was last called, + * and reset the list. + * + * Uses a std::set because typical use case is to compare some + * other list of clients to see which overlap with the blacklisted + * addrs. + * + */ + void consume_blacklist_events(std::set<entity_addr_t> *events); + + int pool_snap_by_name(int64_t poolid, + const char *snap_name, + snapid_t *snap) const; + int pool_snap_get_info(int64_t poolid, snapid_t snap, + pool_snap_info_t *info) const; + int pool_snap_list(int64_t poolid, vector<uint64_t> *snaps); +private: + + void emit_blacklist_events(const OSDMap::Incremental &inc); + void emit_blacklist_events(const OSDMap &old_osd_map, + const OSDMap &new_osd_map); + + // low-level + void _op_submit(Op *op, shunique_lock& lc, ceph_tid_t *ptid); + void _op_submit_with_budget(Op *op, shunique_lock& lc, + ceph_tid_t *ptid, + int *ctx_budget = NULL); + // public interface +public: + void op_submit(Op *op, ceph_tid_t *ptid = NULL, int *ctx_budget = NULL); + bool is_active() { + shared_lock l(rwlock); + return !((!inflight_ops) && linger_ops.empty() && + poolstat_ops.empty() && statfs_ops.empty()); + } + + /** + * Output in-flight requests + */ + void _dump_active(OSDSession *s); + void _dump_active(); + void dump_active(); + void dump_requests(Formatter *fmt); + void _dump_ops(const OSDSession *s, Formatter *fmt); + void dump_ops(Formatter *fmt); + void _dump_linger_ops(const OSDSession *s, Formatter *fmt); + void dump_linger_ops(Formatter *fmt); + void _dump_command_ops(const OSDSession *s, Formatter *fmt); + void dump_command_ops(Formatter *fmt); + void dump_pool_ops(Formatter *fmt) const; + void dump_pool_stat_ops(Formatter *fmt) const; + void dump_statfs_ops(Formatter *fmt) const; + + int get_client_incarnation() const { return client_inc; } + void set_client_incarnation(int inc) { client_inc = inc; } + + bool have_map(epoch_t epoch); + /// wait for epoch; true if we already have it + bool wait_for_map(epoch_t epoch, Context *c, int err=0); + void _wait_for_new_map(Context *c, epoch_t epoch, int err=0); + void wait_for_latest_osdmap(Context *fin); + void get_latest_version(epoch_t oldest, epoch_t neweset, Context *fin); + + /** Get the current set of global op flags */ + int get_global_op_flags() const { return global_op_flags; } + /** Add a flag to the global op flags, not really atomic operation */ + void add_global_op_flags(int flag) { + global_op_flags.fetch_or(flag); + } + /** Clear the passed flags from the global op flag set */ + void clear_global_op_flag(int flags) { + global_op_flags.fetch_and(~flags); + } + + /// cancel an in-progress request with the given return code +private: + int op_cancel(OSDSession *s, ceph_tid_t tid, int r); + int _op_cancel(ceph_tid_t tid, int r); +public: + int op_cancel(ceph_tid_t tid, int r); + int op_cancel(const vector<ceph_tid_t>& tidls, int r); + + /** + * Any write op which is in progress at the start of this call shall no + * longer be in progress when this call ends. Operations started after the + * start of this call may still be in progress when this call ends. + * + * @return the latest possible epoch in which a cancelled op could have + * existed, or -1 if nothing was cancelled. + */ + epoch_t op_cancel_writes(int r, int64_t pool=-1); + + // commands + void osd_command(int osd, const std::vector<string>& cmd, + const bufferlist& inbl, ceph_tid_t *ptid, + bufferlist *poutbl, string *prs, Context *onfinish) { + ceph_assert(osd >= 0); + CommandOp *c = new CommandOp( + osd, + cmd, + inbl, + poutbl, + prs, + onfinish); + submit_command(c, ptid); + } + void pg_command(pg_t pgid, const vector<string>& cmd, + const bufferlist& inbl, ceph_tid_t *ptid, + bufferlist *poutbl, string *prs, Context *onfinish) { + CommandOp *c = new CommandOp( + pgid, + cmd, + inbl, + poutbl, + prs, + onfinish); + submit_command(c, ptid); + } + + // mid-level helpers + Op *prepare_mutate_op( + const object_t& oid, const object_locator_t& oloc, + ObjectOperation& op, const SnapContext& snapc, + ceph::real_time mtime, int flags, + Context *oncommit, version_t *objver = NULL, + osd_reqid_t reqid = osd_reqid_t(), + ZTracer::Trace *parent_trace = nullptr) { + Op *o = new Op(oid, oloc, op.ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver, nullptr, parent_trace); + o->priority = op.priority; + o->mtime = mtime; + o->snapc = snapc; + o->out_rval.swap(op.out_rval); + o->reqid = reqid; + return o; + } + ceph_tid_t mutate( + const object_t& oid, const object_locator_t& oloc, + ObjectOperation& op, const SnapContext& snapc, + ceph::real_time mtime, int flags, + Context *oncommit, version_t *objver = NULL, + osd_reqid_t reqid = osd_reqid_t()) { + Op *o = prepare_mutate_op(oid, oloc, op, snapc, mtime, flags, + oncommit, objver, reqid); + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + Op *prepare_read_op( + const object_t& oid, const object_locator_t& oloc, + ObjectOperation& op, + snapid_t snapid, bufferlist *pbl, int flags, + Context *onack, version_t *objver = NULL, + int *data_offset = NULL, + uint64_t features = 0, + ZTracer::Trace *parent_trace = nullptr) { + Op *o = new Op(oid, oloc, op.ops, flags | global_op_flags | + CEPH_OSD_FLAG_READ, onack, objver, data_offset, parent_trace); + o->priority = op.priority; + o->snapid = snapid; + o->outbl = pbl; + if (!o->outbl && op.size() == 1 && op.out_bl[0]->length()) + o->outbl = op.out_bl[0]; + o->out_bl.swap(op.out_bl); + o->out_handler.swap(op.out_handler); + o->out_rval.swap(op.out_rval); + return o; + } + ceph_tid_t read( + const object_t& oid, const object_locator_t& oloc, + ObjectOperation& op, + snapid_t snapid, bufferlist *pbl, int flags, + Context *onack, version_t *objver = NULL, + int *data_offset = NULL, + uint64_t features = 0) { + Op *o = prepare_read_op(oid, oloc, op, snapid, pbl, flags, onack, objver, + data_offset); + if (features) + o->features = features; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + Op *prepare_pg_read_op( + uint32_t hash, object_locator_t oloc, + ObjectOperation& op, bufferlist *pbl, int flags, + Context *onack, epoch_t *reply_epoch, + int *ctx_budget) { + Op *o = new Op(object_t(), oloc, + op.ops, + flags | global_op_flags | CEPH_OSD_FLAG_READ | + CEPH_OSD_FLAG_IGNORE_OVERLAY, + onack, NULL); + o->target.precalc_pgid = true; + o->target.base_pgid = pg_t(hash, oloc.pool); + o->priority = op.priority; + o->snapid = CEPH_NOSNAP; + o->outbl = pbl; + o->out_bl.swap(op.out_bl); + o->out_handler.swap(op.out_handler); + o->out_rval.swap(op.out_rval); + o->reply_epoch = reply_epoch; + if (ctx_budget) { + // budget is tracked by listing context + o->ctx_budgeted = true; + } + return o; + } + ceph_tid_t pg_read( + uint32_t hash, object_locator_t oloc, + ObjectOperation& op, bufferlist *pbl, int flags, + Context *onack, epoch_t *reply_epoch, + int *ctx_budget) { + Op *o = prepare_pg_read_op(hash, oloc, op, pbl, flags, + onack, reply_epoch, ctx_budget); + ceph_tid_t tid; + op_submit(o, &tid, ctx_budget); + return tid; + } + + // caller owns a ref + LingerOp *linger_register(const object_t& oid, const object_locator_t& oloc, + int flags); + ceph_tid_t linger_watch(LingerOp *info, + ObjectOperation& op, + const SnapContext& snapc, ceph::real_time mtime, + bufferlist& inbl, + Context *onfinish, + version_t *objver); + ceph_tid_t linger_notify(LingerOp *info, + ObjectOperation& op, + snapid_t snap, bufferlist& inbl, + bufferlist *poutbl, + Context *onack, + version_t *objver); + int linger_check(LingerOp *info); + void linger_cancel(LingerOp *info); // releases a reference + void _linger_cancel(LingerOp *info); + + void _do_watch_notify(LingerOp *info, MWatchNotify *m); + + /** + * set up initial ops in the op vector, and allocate a final op slot. + * + * The caller is responsible for filling in the final ops_count ops. + * + * @param ops op vector + * @param ops_count number of final ops the caller will fill in + * @param extra_ops pointer to [array of] initial op[s] + * @return index of final op (for caller to fill in) + */ + int init_ops(vector<OSDOp>& ops, int ops_count, ObjectOperation *extra_ops) { + int i; + int extra = 0; + + if (extra_ops) + extra = extra_ops->ops.size(); + + ops.resize(ops_count + extra); + + for (i=0; i<extra; i++) { + ops[i] = extra_ops->ops[i]; + } + + return i; + } + + + // high-level helpers + Op *prepare_stat_op( + const object_t& oid, const object_locator_t& oloc, + snapid_t snap, uint64_t *psize, ceph::real_time *pmtime, + int flags, Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_STAT; + C_Stat *fin = new C_Stat(psize, pmtime, onfinish); + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_READ, fin, objver); + o->snapid = snap; + o->outbl = &fin->bl; + return o; + } + ceph_tid_t stat( + const object_t& oid, const object_locator_t& oloc, + snapid_t snap, uint64_t *psize, ceph::real_time *pmtime, + int flags, Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + Op *o = prepare_stat_op(oid, oloc, snap, psize, pmtime, flags, + onfinish, objver, extra_ops); + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + + Op *prepare_read_op( + const object_t& oid, const object_locator_t& oloc, + uint64_t off, uint64_t len, snapid_t snap, bufferlist *pbl, + int flags, Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0, + ZTracer::Trace *parent_trace = nullptr) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_READ; + ops[i].op.extent.offset = off; + ops[i].op.extent.length = len; + ops[i].op.extent.truncate_size = 0; + ops[i].op.extent.truncate_seq = 0; + ops[i].op.flags = op_flags; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_READ, onfinish, objver, nullptr, parent_trace); + o->snapid = snap; + o->outbl = pbl; + return o; + } + ceph_tid_t read( + const object_t& oid, const object_locator_t& oloc, + uint64_t off, uint64_t len, snapid_t snap, bufferlist *pbl, + int flags, Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + Op *o = prepare_read_op(oid, oloc, off, len, snap, pbl, flags, + onfinish, objver, extra_ops, op_flags); + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + + Op *prepare_cmpext_op( + const object_t& oid, const object_locator_t& oloc, + uint64_t off, bufferlist &cmp_bl, + snapid_t snap, int flags, Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_CMPEXT; + ops[i].op.extent.offset = off; + ops[i].op.extent.length = cmp_bl.length(); + ops[i].op.extent.truncate_size = 0; + ops[i].op.extent.truncate_seq = 0; + ops[i].indata = cmp_bl; + ops[i].op.flags = op_flags; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_READ, onfinish, objver); + o->snapid = snap; + return o; + } + + ceph_tid_t cmpext( + const object_t& oid, const object_locator_t& oloc, + uint64_t off, bufferlist &cmp_bl, + snapid_t snap, int flags, Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + Op *o = prepare_cmpext_op(oid, oloc, off, cmp_bl, snap, + flags, onfinish, objver, extra_ops, op_flags); + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + + ceph_tid_t read_trunc(const object_t& oid, const object_locator_t& oloc, + uint64_t off, uint64_t len, snapid_t snap, + bufferlist *pbl, int flags, uint64_t trunc_size, + __u32 trunc_seq, Context *onfinish, + version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_READ; + ops[i].op.extent.offset = off; + ops[i].op.extent.length = len; + ops[i].op.extent.truncate_size = trunc_size; + ops[i].op.extent.truncate_seq = trunc_seq; + ops[i].op.flags = op_flags; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_READ, onfinish, objver); + o->snapid = snap; + o->outbl = pbl; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + ceph_tid_t mapext(const object_t& oid, const object_locator_t& oloc, + uint64_t off, uint64_t len, snapid_t snap, bufferlist *pbl, + int flags, Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_MAPEXT; + ops[i].op.extent.offset = off; + ops[i].op.extent.length = len; + ops[i].op.extent.truncate_size = 0; + ops[i].op.extent.truncate_seq = 0; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_READ, onfinish, objver); + o->snapid = snap; + o->outbl = pbl; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + ceph_tid_t getxattr(const object_t& oid, const object_locator_t& oloc, + const char *name, snapid_t snap, bufferlist *pbl, int flags, + Context *onfinish, + version_t *objver = NULL, ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_GETXATTR; + ops[i].op.xattr.name_len = (name ? strlen(name) : 0); + ops[i].op.xattr.value_len = 0; + if (name) + ops[i].indata.append(name, ops[i].op.xattr.name_len); + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_READ, onfinish, objver); + o->snapid = snap; + o->outbl = pbl; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + + ceph_tid_t getxattrs(const object_t& oid, const object_locator_t& oloc, + snapid_t snap, map<string,bufferlist>& attrset, + int flags, Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_GETXATTRS; + C_GetAttrs *fin = new C_GetAttrs(attrset, onfinish); + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_READ, fin, objver); + o->snapid = snap; + o->outbl = &fin->bl; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + + ceph_tid_t read_full(const object_t& oid, const object_locator_t& oloc, + snapid_t snap, bufferlist *pbl, int flags, + Context *onfinish, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + return read(oid, oloc, 0, 0, snap, pbl, flags | global_op_flags | + CEPH_OSD_FLAG_READ, onfinish, objver, extra_ops); + } + + + // writes + ceph_tid_t _modify(const object_t& oid, const object_locator_t& oloc, + vector<OSDOp>& ops, ceph::real_time mtime, + const SnapContext& snapc, int flags, + Context *oncommit, + version_t *objver = NULL) { + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + Op *prepare_write_op( + const object_t& oid, const object_locator_t& oloc, + uint64_t off, uint64_t len, const SnapContext& snapc, + const bufferlist &bl, ceph::real_time mtime, int flags, + Context *oncommit, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0, + ZTracer::Trace *parent_trace = nullptr) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_WRITE; + ops[i].op.extent.offset = off; + ops[i].op.extent.length = len; + ops[i].op.extent.truncate_size = 0; + ops[i].op.extent.truncate_seq = 0; + ops[i].indata = bl; + ops[i].op.flags = op_flags; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver, + nullptr, parent_trace); + o->mtime = mtime; + o->snapc = snapc; + return o; + } + ceph_tid_t write( + const object_t& oid, const object_locator_t& oloc, + uint64_t off, uint64_t len, const SnapContext& snapc, + const bufferlist &bl, ceph::real_time mtime, int flags, + Context *oncommit, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + Op *o = prepare_write_op(oid, oloc, off, len, snapc, bl, mtime, flags, + oncommit, objver, extra_ops, op_flags); + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + Op *prepare_append_op( + const object_t& oid, const object_locator_t& oloc, + uint64_t len, const SnapContext& snapc, + const bufferlist &bl, ceph::real_time mtime, int flags, + Context *oncommit, + version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_APPEND; + ops[i].op.extent.offset = 0; + ops[i].op.extent.length = len; + ops[i].op.extent.truncate_size = 0; + ops[i].op.extent.truncate_seq = 0; + ops[i].indata = bl; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + return o; + } + ceph_tid_t append( + const object_t& oid, const object_locator_t& oloc, + uint64_t len, const SnapContext& snapc, + const bufferlist &bl, ceph::real_time mtime, int flags, + Context *oncommit, + version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + Op *o = prepare_append_op(oid, oloc, len, snapc, bl, mtime, flags, + oncommit, objver, extra_ops); + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + ceph_tid_t write_trunc(const object_t& oid, const object_locator_t& oloc, + uint64_t off, uint64_t len, const SnapContext& snapc, + const bufferlist &bl, ceph::real_time mtime, int flags, + uint64_t trunc_size, __u32 trunc_seq, + Context *oncommit, + version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_WRITE; + ops[i].op.extent.offset = off; + ops[i].op.extent.length = len; + ops[i].op.extent.truncate_size = trunc_size; + ops[i].op.extent.truncate_seq = trunc_seq; + ops[i].indata = bl; + ops[i].op.flags = op_flags; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + Op *prepare_write_full_op( + const object_t& oid, const object_locator_t& oloc, + const SnapContext& snapc, const bufferlist &bl, + ceph::real_time mtime, int flags, + Context *oncommit, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_WRITEFULL; + ops[i].op.extent.offset = 0; + ops[i].op.extent.length = bl.length(); + ops[i].indata = bl; + ops[i].op.flags = op_flags; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + return o; + } + ceph_tid_t write_full( + const object_t& oid, const object_locator_t& oloc, + const SnapContext& snapc, const bufferlist &bl, + ceph::real_time mtime, int flags, + Context *oncommit, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + Op *o = prepare_write_full_op(oid, oloc, snapc, bl, mtime, flags, + oncommit, objver, extra_ops, op_flags); + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + Op *prepare_writesame_op( + const object_t& oid, const object_locator_t& oloc, + uint64_t write_len, uint64_t off, + const SnapContext& snapc, const bufferlist &bl, + ceph::real_time mtime, int flags, + Context *oncommit, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_WRITESAME; + ops[i].op.writesame.offset = off; + ops[i].op.writesame.length = write_len; + ops[i].op.writesame.data_length = bl.length(); + ops[i].indata = bl; + ops[i].op.flags = op_flags; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + return o; + } + ceph_tid_t writesame( + const object_t& oid, const object_locator_t& oloc, + uint64_t write_len, uint64_t off, + const SnapContext& snapc, const bufferlist &bl, + ceph::real_time mtime, int flags, + Context *oncommit, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL, int op_flags = 0) { + + Op *o = prepare_writesame_op(oid, oloc, write_len, off, snapc, bl, + mtime, flags, oncommit, objver, + extra_ops, op_flags); + + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + ceph_tid_t trunc(const object_t& oid, const object_locator_t& oloc, + const SnapContext& snapc, ceph::real_time mtime, int flags, + uint64_t trunc_size, __u32 trunc_seq, + Context *oncommit, version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_TRUNCATE; + ops[i].op.extent.offset = trunc_size; + ops[i].op.extent.truncate_size = trunc_size; + ops[i].op.extent.truncate_seq = trunc_seq; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + ceph_tid_t zero(const object_t& oid, const object_locator_t& oloc, + uint64_t off, uint64_t len, const SnapContext& snapc, + ceph::real_time mtime, int flags, Context *oncommit, + version_t *objver = NULL, ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_ZERO; + ops[i].op.extent.offset = off; + ops[i].op.extent.length = len; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + ceph_tid_t rollback_object(const object_t& oid, const object_locator_t& oloc, + const SnapContext& snapc, snapid_t snapid, + ceph::real_time mtime, Context *oncommit, + version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_ROLLBACK; + ops[i].op.snap.snapid = snapid; + Op *o = new Op(oid, oloc, ops, CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + ceph_tid_t create(const object_t& oid, const object_locator_t& oloc, + const SnapContext& snapc, ceph::real_time mtime, int global_flags, + int create_flags, Context *oncommit, + version_t *objver = NULL, + ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_CREATE; + ops[i].op.flags = create_flags; + Op *o = new Op(oid, oloc, ops, global_flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + Op *prepare_remove_op( + const object_t& oid, const object_locator_t& oloc, + const SnapContext& snapc, ceph::real_time mtime, int flags, + Context *oncommit, + version_t *objver = NULL, ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_DELETE; + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + return o; + } + ceph_tid_t remove( + const object_t& oid, const object_locator_t& oloc, + const SnapContext& snapc, ceph::real_time mtime, int flags, + Context *oncommit, + version_t *objver = NULL, ObjectOperation *extra_ops = NULL) { + Op *o = prepare_remove_op(oid, oloc, snapc, mtime, flags, + oncommit, objver, extra_ops); + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + + ceph_tid_t setxattr(const object_t& oid, const object_locator_t& oloc, + const char *name, const SnapContext& snapc, const bufferlist &bl, + ceph::real_time mtime, int flags, + Context *oncommit, + version_t *objver = NULL, ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_SETXATTR; + ops[i].op.xattr.name_len = (name ? strlen(name) : 0); + ops[i].op.xattr.value_len = bl.length(); + if (name) + ops[i].indata.append(name, ops[i].op.xattr.name_len); + ops[i].indata.append(bl); + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + ceph_tid_t removexattr(const object_t& oid, const object_locator_t& oloc, + const char *name, const SnapContext& snapc, + ceph::real_time mtime, int flags, + Context *oncommit, + version_t *objver = NULL, ObjectOperation *extra_ops = NULL) { + vector<OSDOp> ops; + int i = init_ops(ops, 1, extra_ops); + ops[i].op.op = CEPH_OSD_OP_RMXATTR; + ops[i].op.xattr.name_len = (name ? strlen(name) : 0); + ops[i].op.xattr.value_len = 0; + if (name) + ops[i].indata.append(name, ops[i].op.xattr.name_len); + Op *o = new Op(oid, oloc, ops, flags | global_op_flags | + CEPH_OSD_FLAG_WRITE, oncommit, objver); + o->mtime = mtime; + o->snapc = snapc; + ceph_tid_t tid; + op_submit(o, &tid); + return tid; + } + + void list_nobjects(NListContext *p, Context *onfinish); + uint32_t list_nobjects_seek(NListContext *p, uint32_t pos); + uint32_t list_nobjects_seek(NListContext *list_context, const hobject_t& c); + void list_nobjects_get_cursor(NListContext *list_context, hobject_t *c); + + hobject_t enumerate_objects_begin(); + hobject_t enumerate_objects_end(); + //hobject_t enumerate_objects_begin(int n, int m); + void enumerate_objects( + int64_t pool_id, + const std::string &ns, + const hobject_t &start, + const hobject_t &end, + const uint32_t max, + const bufferlist &filter_bl, + std::list<librados::ListObjectImpl> *result, + hobject_t *next, + Context *on_finish); + + void _enumerate_reply( + bufferlist &bl, + int r, + const hobject_t &end, + const int64_t pool_id, + int budget, + epoch_t reply_epoch, + std::list<librados::ListObjectImpl> *result, + hobject_t *next, + Context *on_finish); + friend class C_EnumerateReply; + + // ------------------------- + // pool ops +private: + void pool_op_submit(PoolOp *op); + void _pool_op_submit(PoolOp *op); + void _finish_pool_op(PoolOp *op, int r); + void _do_delete_pool(int64_t pool, Context *onfinish); +public: + int create_pool_snap(int64_t pool, string& snapName, Context *onfinish); + int allocate_selfmanaged_snap(int64_t pool, snapid_t *psnapid, + Context *onfinish); + int delete_pool_snap(int64_t pool, string& snapName, Context *onfinish); + int delete_selfmanaged_snap(int64_t pool, snapid_t snap, Context *onfinish); + + int create_pool(string& name, Context *onfinish, + int crush_rule=-1); + int delete_pool(int64_t pool, Context *onfinish); + int delete_pool(const string& name, Context *onfinish); + + void handle_pool_op_reply(MPoolOpReply *m); + int pool_op_cancel(ceph_tid_t tid, int r); + + // -------------------------- + // pool stats +private: + void _poolstat_submit(PoolStatOp *op); +public: + void handle_get_pool_stats_reply(MGetPoolStatsReply *m); + void get_pool_stats(list<string>& pools, map<string,pool_stat_t> *result, + bool *per_pool, + Context *onfinish); + int pool_stat_op_cancel(ceph_tid_t tid, int r); + void _finish_pool_stat_op(PoolStatOp *op, int r); + + // --------------------------- + // df stats +private: + void _fs_stats_submit(StatfsOp *op); +public: + void handle_fs_stats_reply(MStatfsReply *m); + void get_fs_stats(struct ceph_statfs& result, boost::optional<int64_t> poolid, + Context *onfinish); + int statfs_op_cancel(ceph_tid_t tid, int r); + void _finish_statfs_op(StatfsOp *op, int r); + + // --------------------------- + // some scatter/gather hackery + + void _sg_read_finish(vector<ObjectExtent>& extents, + vector<bufferlist>& resultbl, + bufferlist *bl, Context *onfinish); + + struct C_SGRead : public Context { + Objecter *objecter; + vector<ObjectExtent> extents; + vector<bufferlist> resultbl; + bufferlist *bl; + Context *onfinish; + C_SGRead(Objecter *ob, + vector<ObjectExtent>& e, vector<bufferlist>& r, bufferlist *b, + Context *c) : + objecter(ob), bl(b), onfinish(c) { + extents.swap(e); + resultbl.swap(r); + } + void finish(int r) override { + objecter->_sg_read_finish(extents, resultbl, bl, onfinish); + } + }; + + void sg_read_trunc(vector<ObjectExtent>& extents, snapid_t snap, + bufferlist *bl, int flags, uint64_t trunc_size, + __u32 trunc_seq, Context *onfinish, int op_flags = 0) { + if (extents.size() == 1) { + read_trunc(extents[0].oid, extents[0].oloc, extents[0].offset, + extents[0].length, snap, bl, flags, extents[0].truncate_size, + trunc_seq, onfinish, 0, 0, op_flags); + } else { + C_GatherBuilder gather(cct); + vector<bufferlist> resultbl(extents.size()); + int i=0; + for (vector<ObjectExtent>::iterator p = extents.begin(); + p != extents.end(); + ++p) { + read_trunc(p->oid, p->oloc, p->offset, p->length, snap, &resultbl[i++], + flags, p->truncate_size, trunc_seq, gather.new_sub(), + 0, 0, op_flags); + } + gather.set_finisher(new C_SGRead(this, extents, resultbl, bl, onfinish)); + gather.activate(); + } + } + + void sg_read(vector<ObjectExtent>& extents, snapid_t snap, bufferlist *bl, + int flags, Context *onfinish, int op_flags = 0) { + sg_read_trunc(extents, snap, bl, flags, 0, 0, onfinish, op_flags); + } + + void sg_write_trunc(vector<ObjectExtent>& extents, const SnapContext& snapc, + const bufferlist& bl, ceph::real_time mtime, int flags, + uint64_t trunc_size, __u32 trunc_seq, + Context *oncommit, int op_flags = 0) { + if (extents.size() == 1) { + write_trunc(extents[0].oid, extents[0].oloc, extents[0].offset, + extents[0].length, snapc, bl, mtime, flags, + extents[0].truncate_size, trunc_seq, oncommit, + 0, 0, op_flags); + } else { + C_GatherBuilder gcom(cct, oncommit); + for (vector<ObjectExtent>::iterator p = extents.begin(); + p != extents.end(); + ++p) { + bufferlist cur; + for (vector<pair<uint64_t,uint64_t> >::iterator bit + = p->buffer_extents.begin(); + bit != p->buffer_extents.end(); + ++bit) + bl.copy(bit->first, bit->second, cur); + ceph_assert(cur.length() == p->length); + write_trunc(p->oid, p->oloc, p->offset, p->length, + snapc, cur, mtime, flags, p->truncate_size, trunc_seq, + oncommit ? gcom.new_sub():0, + 0, 0, op_flags); + } + gcom.activate(); + } + } + + void sg_write(vector<ObjectExtent>& extents, const SnapContext& snapc, + const bufferlist& bl, ceph::real_time mtime, int flags, + Context *oncommit, int op_flags = 0) { + sg_write_trunc(extents, snapc, bl, mtime, flags, 0, 0, oncommit, + op_flags); + } + + void ms_handle_connect(Connection *con) override; + bool ms_handle_reset(Connection *con) override; + void ms_handle_remote_reset(Connection *con) override; + bool ms_handle_refused(Connection *con) override; + bool ms_get_authorizer(int dest_type, + AuthAuthorizer **authorizer) override; + + void blacklist_self(bool set); + +private: + epoch_t epoch_barrier; + bool retry_writes_after_first_reply; +public: + void set_epoch_barrier(epoch_t epoch); + + PerfCounters *get_logger() { + return logger; + } +}; + +#endif |