diff options
Diffstat (limited to 'qpid/cpp/src/qpid/linearstore/journal/wmgr.cpp')
| -rw-r--r-- | qpid/cpp/src/qpid/linearstore/journal/wmgr.cpp | 1086 |
1 files changed, 1086 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/linearstore/journal/wmgr.cpp b/qpid/cpp/src/qpid/linearstore/journal/wmgr.cpp new file mode 100644 index 0000000000..1ff18da663 --- /dev/null +++ b/qpid/cpp/src/qpid/linearstore/journal/wmgr.cpp @@ -0,0 +1,1086 @@ +/* + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + */ + +#include "qpid/linearstore/journal/wmgr.h" + +#include <cassert> +#include "qpid/linearstore/journal/aio_callback.h" +#include "qpid/linearstore/journal/Checksum.h" +#include "qpid/linearstore/journal/data_tok.h" +#include "qpid/linearstore/journal/jcntl.h" +#include "qpid/linearstore/journal/JournalFile.h" +#include "qpid/linearstore/journal/LinearFileController.h" +#include "qpid/linearstore/journal/utils/file_hdr.h" + +namespace qpid { +namespace linearstore { +namespace journal { + +wmgr::wmgr(jcntl* jc, + enq_map& emap, + txn_map& tmap, + LinearFileController& lfc): + pmgr(jc, emap, tmap), + _lfc(lfc), + _max_dtokpp(0), + _max_io_wait_us(0), + _cached_offset_dblks(0), + _enq_busy(false), + _deq_busy(false), + _abort_busy(false), + _commit_busy(false), + _txn_pending_map() +{} + +wmgr::wmgr(jcntl* jc, + enq_map& emap, + txn_map& tmap, + LinearFileController& lfc, + const uint32_t max_dtokpp, + const uint32_t max_iowait_us): + pmgr(jc, emap, tmap), + _lfc(lfc), + _max_dtokpp(max_dtokpp), + _max_io_wait_us(max_iowait_us), + _cached_offset_dblks(0), + _enq_busy(false), + _deq_busy(false), + _abort_busy(false), + _commit_busy(false), + _txn_pending_map() +{} + +wmgr::~wmgr() +{ + wmgr::clean(); +} + +void +wmgr::initialize(aio_callback* const cbp, + const uint32_t wcache_pgsize_sblks, + const uint16_t wcache_num_pages, + const uint32_t max_dtokpp, + const uint32_t max_iowait_us, + std::size_t end_offset) +{ + _enq_busy = false; + _deq_busy = false; + _abort_busy = false; + _commit_busy = false; + _max_dtokpp = max_dtokpp; + _max_io_wait_us = max_iowait_us; + + initialize(cbp, wcache_pgsize_sblks, wcache_num_pages); + + if (end_offset) + { + if(!aio::is_aligned((const void*)end_offset, QLS_AIO_ALIGN_BOUNDARY_BYTES)) { + std::ostringstream oss; + oss << "Recovery using misaligned end_offset (0x" << std::hex << end_offset << std::dec << ")" << std::endl; + throw jexception(jerrno::JERR_WMGR_NOTSBLKALIGNED, oss.str(), "wmgr", "initialize"); + } + const uint32_t wr_pg_size_dblks = _cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS; + uint32_t data_dblks = (end_offset / QLS_DBLK_SIZE_BYTES) - (QLS_JRNL_FHDR_RES_SIZE_SBLKS * QLS_SBLK_SIZE_DBLKS); // exclude file header + _pg_cntr = data_dblks / wr_pg_size_dblks; // Must be set to get file rotation synchronized (this is determined by value of _pg_cntr) + _pg_offset_dblks = data_dblks - (_pg_cntr * wr_pg_size_dblks); + } +} + +iores +wmgr::enqueue(const void* const data_buff, + const std::size_t tot_data_len, + const std::size_t this_data_len, + data_tok* dtokp, + const void* const xid_ptr, + const std::size_t xid_len, + const bool tpc_flag, + const bool transient, + const bool external) +{ +//std::cout << _lfc.status(10) << std::endl; + if (xid_len) + assert(xid_ptr != 0); + + if (_deq_busy || _abort_busy || _commit_busy) { + std::ostringstream oss; + oss << "RHM_IORES_BUSY: enqueue while part way through another op:"; + oss << " _deq_busy=" << (_deq_busy?"T":"F"); + oss << " _abort_busy=" << (_abort_busy?"T":"F"); + oss << " _commit_busy=" << (_commit_busy?"T":"F"); + throw jexception(oss.str()); // TODO: complete exception + } + + if (this_data_len != tot_data_len && !external) { + throw jexception("RHM_IORES_NOTIMPL: partial enqueues not implemented"); // TODO: complete exception; + } + + iores res = pre_write_check(WMGR_ENQUEUE, dtokp, xid_len, tot_data_len, external); + if (res != RHM_IORES_SUCCESS) + return res; + + bool cont = false; + if (_enq_busy) // If enqueue() exited last time with RHM_IORES_FULL or RHM_IORES_PAGE_AIOWAIT + { + if (dtokp->wstate() == data_tok::ENQ_PART) + cont = true; + else + { + std::ostringstream oss; + oss << "This data_tok: id=" << dtokp->id() << " state=" << dtokp->wstate_str(); + throw jexception(jerrno::JERR_WMGR_ENQDISCONT, oss.str(), "wmgr", "enqueue"); + } + } + + uint64_t rid = (dtokp->external_rid() | cont) ? dtokp->rid() : _lfc.getNextRecordId(); + _enq_rec.reset(_lfc.getCurrentSerial(), rid, data_buff, tot_data_len, xid_ptr, xid_len, transient, external); + if (!cont) + { + dtokp->set_rid(rid); + dtokp->set_dequeue_rid(0); + if (xid_len) + dtokp->set_xid(xid_ptr, xid_len); + else + dtokp->clear_xid(); + _enq_busy = true; + } +//std::cout << "---+++ wmgr::enqueue() ENQ rid=0x" << std::hex << rid << " po=0x" << _pg_offset_dblks << " cs=0x" << (_cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS) << " " << std::dec << std::flush; // DEBUG + bool done = false; + Checksum checksum; + while (!done) + { +//std::cout << "*" << std::flush; // DEBUG + assert(_pg_offset_dblks < _cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS); + void* wptr = (void*)((char*)_page_ptr_arr[_pg_index] + _pg_offset_dblks * QLS_DBLK_SIZE_BYTES); + uint32_t data_offs_dblks = dtokp->dblocks_written(); + uint32_t ret = _enq_rec.encode(wptr, data_offs_dblks, + (_cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS) - _pg_offset_dblks, checksum); + + // Remember fid which contains the record header in case record is split over several files + if (data_offs_dblks == 0) { + dtokp->set_fid(_lfc.getCurrentFileSeqNum()); + } + _pg_offset_dblks += ret; + _cached_offset_dblks += ret; + dtokp->incr_dblocks_written(ret); + dtokp->incr_pg_cnt(); + _page_cb_arr[_pg_index]._pdtokl->push_back(dtokp); + + // Is the encoding of this record complete? + if (dtokp->dblocks_written() >= _enq_rec.rec_size_dblks()) + { +//std::cout << "!" << std::flush; // DEBUG + // TODO: Incorrect - must set state to ENQ_CACHED; ENQ_SUBM is set when AIO returns. + dtokp->set_wstate(data_tok::ENQ_SUBM); + dtokp->set_dsize(tot_data_len); + // Only add this data token to page token list when submit is complete, this way + // long multi-page messages have their token on the page containing the END of the + // message. AIO callbacks will then only process this token when entire message is + // enqueued. + _lfc.incrEnqueuedRecordCount(dtokp->fid()); +//std::cout << "[0x" << std::hex << _lfc.getEnqueuedRecordCount(dtokp->fid()) << std::dec << std::flush; // DEBUG + + if (xid_len) // If part of transaction, add to transaction map + { + std::string xid((const char*)xid_ptr, xid_len); + _tmap.insert_txn_data(xid, txn_data_t(rid, 0, dtokp->fid(), 0, true, tpc_flag, false)); + } + else + { + if (_emap.insert_pfid(rid, dtokp->fid(), 0) < enq_map::EMAP_OK) // fail + { + // The only error code emap::insert_pfid() returns is enq_map::EMAP_DUP_RID. + std::ostringstream oss; + oss << std::hex << "rid=0x" << rid << " _pfid=0x" << dtokp->fid(); + throw jexception(jerrno::JERR_MAP_DUPLICATE, oss.str(), "wmgr", "enqueue"); + } + } + + done = true; + } else { +//std::cout << "$" << std::flush; // DEBUG + dtokp->set_wstate(data_tok::ENQ_PART); + } + + file_header_check(rid, cont, _enq_rec.rec_size_dblks() - data_offs_dblks); + flush_check(res, cont, done, rid); + } + if (dtokp->wstate() >= data_tok::ENQ_SUBM) + _enq_busy = false; +//std::cout << " res=" << iores_str(res) << " _enq_busy=" << (_enq_busy?"T":"F") << std::endl << std::flush; // DEBUG + return res; +} + +iores +wmgr::dequeue(data_tok* dtokp, + const void* const xid_ptr, + const std::size_t xid_len, + const bool tpc_flag, + const bool txn_coml_commit) +{ + if (xid_len) + assert(xid_ptr != 0); + + if (_enq_busy || _abort_busy || _commit_busy) { + std::ostringstream oss; + oss << "RHM_IORES_BUSY: dequeue while part way through another op:"; + oss << " _enq_busy=" << (_enq_busy?"T":"F"); + oss << " _abort_busy=" << (_abort_busy?"T":"F"); + oss << " _commit_busy=" << (_commit_busy?"T":"F"); + throw jexception(oss.str()); // TODO: complete exception + } + + iores res = pre_write_check(WMGR_DEQUEUE, dtokp); + if (res != RHM_IORES_SUCCESS) + return res; + + bool cont = false; + if (_deq_busy) // If dequeue() exited last time with RHM_IORES_FULL or RHM_IORES_PAGE_AIOWAIT + { + if (dtokp->wstate() == data_tok::DEQ_PART) + cont = true; + else + { + std::ostringstream oss; + oss << "This data_tok: id=" << dtokp->id() << " state=" << dtokp->wstate_str(); + throw jexception(jerrno::JERR_WMGR_DEQDISCONT, oss.str(), "wmgr", "dequeue"); + } + } + + const bool ext_rid = dtokp->external_rid(); + uint64_t rid = (ext_rid | cont) ? dtokp->rid() : _lfc.getNextRecordId(); + uint64_t dequeue_rid = (ext_rid | cont) ? dtokp->dequeue_rid() : dtokp->rid(); + _deq_rec.reset(_lfc.getCurrentSerial(), rid, dequeue_rid, xid_ptr, xid_len, txn_coml_commit); + if (!cont) + { + if (!ext_rid) + { + dtokp->set_rid(rid); + dtokp->set_dequeue_rid(dequeue_rid); + } + if (xid_len) + dtokp->set_xid(xid_ptr, xid_len); + else + dtokp->clear_xid(); + dequeue_check(dtokp->xid(), dequeue_rid); + dtokp->set_dblocks_written(0); // Reset dblks_written from previous op + _deq_busy = true; + } +//std::cout << "---+++ wmgr::dequeue() DEQ rid=0x" << std::hex << rid << " drid=0x" << dequeue_rid << " " << std::dec << std::flush; // DEBUG + std::string xid((const char*)xid_ptr, xid_len); + bool done = false; + Checksum checksum; + while (!done) + { +//std::cout << "*" << std::flush; // DEBUG + assert(_pg_offset_dblks < _cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS); + void* wptr = (void*)((char*)_page_ptr_arr[_pg_index] + _pg_offset_dblks * QLS_DBLK_SIZE_BYTES); + uint32_t data_offs_dblks = dtokp->dblocks_written(); + uint32_t ret = _deq_rec.encode(wptr, data_offs_dblks, + (_cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS) - _pg_offset_dblks, checksum); + + if (data_offs_dblks == 0) { + uint64_t fid; + short eres = _emap.get_pfid(dtokp->dequeue_rid(), fid); + if (eres == enq_map::EMAP_OK) { + dtokp->set_fid(fid); + } else if (xid_len > 0) { + txn_data_list_t tdl = _tmap.get_tdata_list(xid); + bool found = false; + for (tdl_const_itr_t i=tdl.begin(); i!=tdl.end() && !found; ++i) { + if (i->rid_ == dtokp->dequeue_rid()) { + found = true; + dtokp->set_fid(i->fid_); + break; + } + } + if (!found) { + throw jexception("rid found in neither emap nor tmap, transactional"); + } + } else { + throw jexception("rid not found in emap, non-transactional"); + } + } + _pg_offset_dblks += ret; + _cached_offset_dblks += ret; + dtokp->incr_dblocks_written(ret); + dtokp->incr_pg_cnt(); + _page_cb_arr[_pg_index]._pdtokl->push_back(dtokp); + + // Is the encoding of this record complete? + if (dtokp->dblocks_written() >= _deq_rec.rec_size_dblks()) + { +//std::cout << "!" << std::flush; // DEBUG + // TODO: Incorrect - must set state to ENQ_CACHED; ENQ_SUBM is set when AIO returns. + dtokp->set_wstate(data_tok::DEQ_SUBM); + + if (xid_len) // If part of transaction, add to transaction map + { + // If the enqueue is part of a pending txn, it will not yet be in emap + _emap.lock(dequeue_rid); // ignore rid not found error + std::string xid((const char*)xid_ptr, xid_len); + _tmap.insert_txn_data(xid, txn_data_t(rid, dequeue_rid, dtokp->fid(), 0, false, tpc_flag, false)); + } + else + { + uint64_t fid; + short eres = _emap.get_remove_pfid(dtokp->dequeue_rid(), fid); + if (eres < enq_map::EMAP_OK) // fail + { + if (eres == enq_map::EMAP_RID_NOT_FOUND) + { + std::ostringstream oss; + oss << std::hex << "emap: rid=0x" << rid; + throw jexception(jerrno::JERR_MAP_NOTFOUND, oss.str(), "wmgr", "dequeue"); + } + if (eres == enq_map::EMAP_LOCKED) + { + std::ostringstream oss; + oss << std::hex << "rid=0x" << rid; + throw jexception(jerrno::JERR_MAP_LOCKED, oss.str(), "wmgr", "dequeue"); + } + } + } + + done = true; + } else { +//std::cout << "$" << std::flush; // DEBUG + dtokp->set_wstate(data_tok::DEQ_PART); + } + + file_header_check(rid, cont, _deq_rec.rec_size_dblks() - data_offs_dblks); + flush_check(res, cont, done, rid); + } + if (dtokp->wstate() >= data_tok::DEQ_SUBM) + _deq_busy = false; +//std::cout << " res=" << iores_str(res) << " _deq_busy=" << (_deq_busy?"T":"F") << std::endl << std::flush; // DEBUG + return res; +} + +iores +wmgr::abort(data_tok* dtokp, + const void* const xid_ptr, + const std::size_t xid_len) +{ + // commit and abort MUST have a valid xid + assert(xid_ptr != 0 && xid_len > 0); + + if (_enq_busy || _deq_busy || _commit_busy) { + std::ostringstream oss; + oss << "RHM_IORES_BUSY: abort while part way through another op:"; + oss << " _enq_busy=" << (_enq_busy?"T":"F"); + oss << " _deq_busy=" << (_deq_busy?"T":"F"); + oss << " _commit_busy=" << (_commit_busy?"T":"F"); + throw jexception(oss.str()); // TODO: complete exception + } + + iores res = pre_write_check(WMGR_ABORT, dtokp); + if (res != RHM_IORES_SUCCESS) + return res; + + bool cont = false; + if (_abort_busy) // If abort() exited last time with RHM_IORES_FULL or RHM_IORES_PAGE_AIOWAIT + { + if (dtokp->wstate() == data_tok::ABORT_PART) + cont = true; + else + { + std::ostringstream oss; + oss << "This data_tok: id=" << dtokp->id() << " state=" << dtokp->wstate_str(); + throw jexception(jerrno::JERR_WMGR_DEQDISCONT, oss.str(), "wmgr", "abort"); + } + } + + uint64_t rid = (dtokp->external_rid() | cont) ? dtokp->rid() : _lfc.getNextRecordId(); + _txn_rec.reset(false, _lfc.getCurrentSerial(), rid, xid_ptr, xid_len); + if (!cont) + { + dtokp->set_rid(rid); + dtokp->set_dequeue_rid(0); + dtokp->set_xid(xid_ptr, xid_len); + dtokp->set_dblocks_written(0); // Reset dblks_written from previous op + _abort_busy = true; + } + bool done = false; + Checksum checksum; + while (!done) + { + assert(_pg_offset_dblks < _cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS); + void* wptr = (void*)((char*)_page_ptr_arr[_pg_index] + _pg_offset_dblks * QLS_DBLK_SIZE_BYTES); + uint32_t data_offs_dblks = dtokp->dblocks_written(); + uint32_t ret = _txn_rec.encode(wptr, data_offs_dblks, + (_cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS) - _pg_offset_dblks, checksum); + + // Remember fid which contains the record header in case record is split over several files + if (data_offs_dblks == 0) + dtokp->set_fid(_lfc.getCurrentFileSeqNum()); + _pg_offset_dblks += ret; + _cached_offset_dblks += ret; + dtokp->incr_dblocks_written(ret); + dtokp->incr_pg_cnt(); + _page_cb_arr[_pg_index]._pdtokl->push_back(dtokp); + + // Is the encoding of this record complete? + if (dtokp->dblocks_written() >= _txn_rec.rec_size_dblks()) + { + dtokp->set_wstate(data_tok::ABORT_SUBM); + + // Delete this txn from tmap, unlock any locked records in emap + std::string xid((const char*)xid_ptr, xid_len); + txn_data_list_t tdl = _tmap.get_remove_tdata_list(xid); // tdl will be empty if xid not found + fidl_t fidl; + for (tdl_itr_t itr = tdl.begin(); itr != tdl.end(); itr++) + { + if (!itr->enq_flag_) + _emap.unlock(itr->drid_); // ignore rid not found error + if (itr->enq_flag_) { + fidl.push_back(itr->fid_); + } + } + std::pair<pending_txn_map_itr_t, bool> res = _txn_pending_map.insert(std::pair<std::string, fidl_t>(xid, fidl)); + if (!res.second) + { + std::ostringstream oss; + oss << std::hex << "_txn_pending_set: xid=\"" << xid << "\""; + throw jexception(jerrno::JERR_MAP_DUPLICATE, oss.str(), "wmgr", "abort"); + } + + done = true; + } else { + dtokp->set_wstate(data_tok::ABORT_PART); + } + + file_header_check(rid, cont, _txn_rec.rec_size_dblks() - data_offs_dblks); + flush_check(res, cont, done, rid); + } + if (dtokp->wstate() >= data_tok::ABORT_SUBM) + _abort_busy = false; + return res; +} + +iores +wmgr::commit(data_tok* dtokp, + const void* const xid_ptr, + const std::size_t xid_len) +{ + // commit and abort MUST have a valid xid + assert(xid_ptr != 0 && xid_len > 0); + + if (_enq_busy || _deq_busy || _abort_busy) { + std::ostringstream oss; + oss << "RHM_IORES_BUSY: commit while part way through another op:"; + oss << " _enq_busy=" << (_enq_busy?"T":"F"); + oss << " _deq_busy=" << (_deq_busy?"T":"F"); + oss << " _abort_busy=" << (_abort_busy?"T":"F"); + throw jexception(oss.str()); // TODO: complete exception + } + + iores res = pre_write_check(WMGR_COMMIT, dtokp); + if (res != RHM_IORES_SUCCESS) + return res; + + bool cont = false; + if (_commit_busy) // If commit() exited last time with RHM_IORES_FULL or RHM_IORES_PAGE_AIOWAIT + { + if (dtokp->wstate() == data_tok::COMMIT_PART) + cont = true; + else + { + std::ostringstream oss; + oss << "This data_tok: id=" << dtokp->id() << " state=" << dtokp->wstate_str(); + throw jexception(jerrno::JERR_WMGR_DEQDISCONT, oss.str(), "wmgr", "commit"); + } + } + + uint64_t rid = (dtokp->external_rid() | cont) ? dtokp->rid() : _lfc.getNextRecordId(); + _txn_rec.reset(true, _lfc.getCurrentSerial(), rid, xid_ptr, xid_len); + if (!cont) + { + dtokp->set_rid(rid); + dtokp->set_dequeue_rid(0); + dtokp->set_xid(xid_ptr, xid_len); + dtokp->set_dblocks_written(0); // Reset dblks_written from previous op + _commit_busy = true; + } + bool done = false; + Checksum checksum; + while (!done) + { + assert(_pg_offset_dblks < _cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS); + void* wptr = (void*)((char*)_page_ptr_arr[_pg_index] + _pg_offset_dblks * QLS_DBLK_SIZE_BYTES); + uint32_t data_offs_dblks = dtokp->dblocks_written(); + uint32_t ret = _txn_rec.encode(wptr, data_offs_dblks, + (_cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS) - _pg_offset_dblks, checksum); + + // Remember fid which contains the record header in case record is split over several files + if (data_offs_dblks == 0) + dtokp->set_fid(_lfc.getCurrentFileSeqNum()); + _pg_offset_dblks += ret; + _cached_offset_dblks += ret; + dtokp->incr_dblocks_written(ret); + dtokp->incr_pg_cnt(); + _page_cb_arr[_pg_index]._pdtokl->push_back(dtokp); + + // Is the encoding of this record complete? + if (dtokp->dblocks_written() >= _txn_rec.rec_size_dblks()) + { + dtokp->set_wstate(data_tok::COMMIT_SUBM); + + // Delete this txn from tmap, process records into emap + std::string xid((const char*)xid_ptr, xid_len); + txn_data_list_t tdl = _tmap.get_remove_tdata_list(xid); // tdl will be empty if xid not found + fidl_t fidl; + for (tdl_itr_t itr = tdl.begin(); itr != tdl.end(); itr++) + { + if (itr->enq_flag_) // txn enqueue + { + if (_emap.insert_pfid(itr->rid_, itr->fid_, 0) < enq_map::EMAP_OK) // fail + { + // The only error code emap::insert_pfid() returns is enq_map::EMAP_DUP_RID. + std::ostringstream oss; + oss << std::hex << "rid=0x" << itr->rid_ << " _pfid=0x" << itr->fid_; + throw jexception(jerrno::JERR_MAP_DUPLICATE, oss.str(), "wmgr", "commit"); + } + } + else // txn dequeue + { + uint64_t fid; + short eres = _emap.get_remove_pfid(itr->drid_, fid, true); + if (eres < enq_map::EMAP_OK) // fail + { + if (eres == enq_map::EMAP_RID_NOT_FOUND) + { + std::ostringstream oss; + oss << std::hex << "emap: rid=0x" << itr->drid_; + throw jexception(jerrno::JERR_MAP_NOTFOUND, oss.str(), "wmgr", "commit"); + } + if (eres == enq_map::EMAP_LOCKED) + { + std::ostringstream oss; + oss << std::hex << "rid=0x" << itr->drid_; + throw jexception(jerrno::JERR_MAP_LOCKED, oss.str(), "wmgr", "commit"); + } + } + fidl.push_back(fid); + } + } + std::pair<pending_txn_map_itr_t, bool> res = _txn_pending_map.insert(std::pair<std::string, fidl_t>(xid, fidl)); + if (!res.second) + { + std::ostringstream oss; + oss << std::hex << "_txn_pending_set: xid=\"" << xid << "\""; + throw jexception(jerrno::JERR_MAP_DUPLICATE, oss.str(), "wmgr", "commit"); + } + + done = true; + } else { + dtokp->set_wstate(data_tok::COMMIT_PART); + } + + file_header_check(rid, cont, _txn_rec.rec_size_dblks() - data_offs_dblks); + flush_check(res, cont, done, rid); + } + if (dtokp->wstate() >= data_tok::COMMIT_SUBM) + _commit_busy = false; + return res; +} + +void +wmgr::file_header_check(const uint64_t rid, + const bool cont, + const uint32_t rec_dblks_rem) +{ + if (_lfc.isEmpty()) // File never written (i.e. no header or data) + { +//std::cout << "e" << std::flush; + std::size_t fro = 0; + if (cont) { + bool file_fit = rec_dblks_rem <= _lfc.dataSize_sblks() * QLS_SBLK_SIZE_DBLKS; // Will fit within this journal file + bool file_full = rec_dblks_rem == _lfc.dataSize_sblks() * QLS_SBLK_SIZE_DBLKS; // Will exactly fill this journal file + if (file_fit && !file_full) { + fro = (rec_dblks_rem + (QLS_JRNL_FHDR_RES_SIZE_SBLKS * QLS_SBLK_SIZE_DBLKS)) * QLS_DBLK_SIZE_BYTES; + } + } else { + fro = QLS_JRNL_FHDR_RES_SIZE_SBLKS * QLS_SBLK_SIZE_BYTES; + } + _lfc.asyncFileHeaderWrite(_ioctx, 0, rid, fro); + _aio_evt_rem++; + } +} + +void +wmgr::flush_check(iores& res, + bool& cont, + bool& done, const uint64_t /*rid*/) // DEBUG +{ + // Is page is full, flush + if (_pg_offset_dblks >= _cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS) + { +//std::cout << "^" << _pg_offset_dblks << ">=" << (_cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS) << std::flush; + res = write_flush(); + assert(res == RHM_IORES_SUCCESS); + + if (_page_cb_arr[_pg_index]._state == AIO_PENDING && !done) + { + res = RHM_IORES_PAGE_AIOWAIT; + done = true; + } + + // If file is full, rotate to next file + uint32_t dataSize_pgs = _lfc.dataSize_sblks() / _cache_pgsize_sblks; + if (_pg_cntr >= dataSize_pgs) + { +//std::cout << _pg_cntr << ">=" << fileSize_pgs << std::flush; + get_next_file(); + if (!done) { + cont = true; + } +//std::cout << "***** wmgr::flush_check(): GET NEXT FILE: rid=0x" << std::hex << rid << std::dec << " res=" << iores_str(res) << " cont=" << (cont?"T":"F") << " done=" << (done?"T":"F") << std::endl; // DEBUG + } + } +} + +iores +wmgr::flush() +{ + iores res = write_flush(); + uint32_t dataSize_pgs = _lfc.dataSize_sblks() / _cache_pgsize_sblks; + if (res == RHM_IORES_SUCCESS && _pg_cntr >= dataSize_pgs) { + get_next_file(); + } + return res; +} + +iores +wmgr::write_flush() +{ + iores res = RHM_IORES_SUCCESS; + // Don't bother flushing an empty page or one that is still in state AIO_PENDING + if (_cached_offset_dblks) + { + if (_page_cb_arr[_pg_index]._state == AIO_PENDING) { +//std::cout << "#" << std::flush; // DEBUG + res = RHM_IORES_PAGE_AIOWAIT; + } else { + if (_page_cb_arr[_pg_index]._state != IN_USE) + { + std::ostringstream oss; + oss << "pg_index=" << _pg_index << " state=" << _page_cb_arr[_pg_index].state_str(); + throw jexception(jerrno::JERR_WMGR_BADPGSTATE, oss.str(), "wmgr", "write_flush"); + } + + // Send current page using AIO + + // In manual flushes, dblks may not coincide with sblks, add filler records ("RHMx") if necessary. + dblk_roundup(); + + std::size_t pg_offs = (_pg_offset_dblks - _cached_offset_dblks) * QLS_DBLK_SIZE_BYTES; + aio_cb* aiocbp = &_aio_cb_arr[_pg_index]; + _lfc.asyncPageWrite(_ioctx, aiocbp, (char*)_page_ptr_arr[_pg_index] + pg_offs, _cached_offset_dblks); + _page_cb_arr[_pg_index]._state = AIO_PENDING; + _aio_evt_rem++; +//std::cout << "." << _aio_evt_rem << std::flush; // DEBUG + _cached_offset_dblks = 0; + _jc->instr_incr_outstanding_aio_cnt(); + + rotate_page(); // increments _pg_index, resets _pg_offset_dblks if req'd + if (_page_cb_arr[_pg_index]._state == UNUSED) + _page_cb_arr[_pg_index]._state = IN_USE; + } + } + get_events(0, false); + if (_page_cb_arr[_pg_index]._state == UNUSED) + _page_cb_arr[_pg_index]._state = IN_USE; + return res; +} + +void +wmgr::get_next_file() +{ + _pg_cntr = 0; +//std::cout << "&&&&& wmgr::get_next_file(): " << status_str() << std::flush << std::endl; // DEBUG + _lfc.getNextJournalFile(); +} + +int32_t +wmgr::get_events(timespec* const timeout, + bool flush) +{ + if (_aio_evt_rem == 0) // no events to get + return 0; + + int ret = 0; + if ((ret = aio::getevents(_ioctx, flush ? _aio_evt_rem : 1, _aio_evt_rem, _aio_event_arr, timeout)) < 0) + { + if (ret == -EINTR) // Interrupted by signal + return 0; + std::ostringstream oss; + oss << "io_getevents() failed: " << std::strerror(-ret) << " (" << ret << ") ctx_id=" << _ioctx; + oss << " min_nr=" << (flush ? _aio_evt_rem : 1) << " nr=" << _aio_evt_rem; + throw jexception(jerrno::JERR__AIO, oss.str(), "wmgr", "get_events"); + } + + if (ret == 0 && timeout) + return jerrno::AIO_TIMEOUT; + + int32_t tot_data_toks = 0; + for (int i=0; i<ret; i++) // Index of returned AIOs + { + if (_aio_evt_rem == 0) + { + std::ostringstream oss; + oss << "_aio_evt_rem; evt " << (i + 1) << " of " << ret; + throw jexception(jerrno::JERR__UNDERFLOW, oss.str(), "wmgr", "get_events"); + } + _aio_evt_rem--; +//std::cout << "'" << _aio_evt_rem; // DEBUG + aio_cb* aiocbp = _aio_event_arr[i].obj; // This I/O control block (iocb) + page_cb* pcbp = (page_cb*)(aiocbp->data); // This page control block (pcb) + long aioret = (long)_aio_event_arr[i].res; + if (aioret < 0) { + std::ostringstream oss; + oss << "AIO write operation failed: " << std::strerror(-aioret) << " (" << aioret << ")" << std::endl; + oss << " data=" << _aio_event_arr[i].data << std::endl; + oss << " obj=" << _aio_event_arr[i].obj << std::endl; + oss << " res=" << _aio_event_arr[i].res << std::endl; + oss << " res2=" << _aio_event_arr[i].res2 << std::endl; + oss << " iocb->data=" << aiocbp->data << std::endl; + oss << " iocb->key=" << aiocbp->key << std::endl; + oss << " iocb->aio_lio_opcode=" << aiocbp->aio_lio_opcode << std::endl; + oss << " iocb->aio_reqprio=" << aiocbp->aio_reqprio << std::endl; + oss << " iocb->aio_fildes=" << aiocbp->aio_fildes << std::endl; + oss << " iocb->u.c.buf=" << aiocbp->u.c.buf << std::endl; + oss << " iocb->u.c.nbytes=0x" << std::hex << aiocbp->u.c.nbytes << std::dec << " (" << aiocbp->u.c.nbytes << ")" << std::endl; + oss << " iocb->u.c.offset=0x" << std::hex << aiocbp->u.c.offset << std::dec << " (" << aiocbp->u.c.offset << ")" << std::endl; + oss << " iocb->u.c.flags=0x" << std::hex << aiocbp->u.c.flags << std::dec << " (" << aiocbp->u.c.flags << ")" << std::endl; + oss << " iocb->u.c.resfd=" << aiocbp->u.c.resfd << std::endl; + if (pcbp) { + oss << " Page Control Block: (iocb->data):" << std::endl; + oss << " pcb.index=" << pcbp->_index << std::endl; + oss << " pcb.state=" << pcbp->_state << " (" << pmgr::page_state_str(pcbp->_state) << ")" << std::endl; + oss << " pcb.frid=0x" << std::hex << pcbp->_frid << std::dec << std::endl; + oss << " pcb.wdblks=0x" << std::hex << pcbp->_wdblks << std::dec << std::endl; + oss << " pcb.pdtokl.size=" << pcbp->_pdtokl->size() << std::endl; + oss << " pcb.pbuff=" << pcbp->_pbuff << std::endl; + oss << " JournalFile (pcb.jfp):" << std::endl; + oss << pcbp->_jfp->status_str(6) << std::endl; + } else { + file_hdr_t* fhp = (file_hdr_t*)aiocbp->u.c.buf; + oss << "fnum=" << fhp->_file_number; + oss << " qname=" << std::string((char*)fhp + sizeof(file_hdr_t), fhp->_queue_name_len); + } + throw jexception(jerrno::JERR__AIO, oss.str(), "wmgr", "get_events"); + } + if (pcbp) // Page writes have pcb + { +//std::cout << "p"; // DEBUG + uint32_t s = pcbp->_pdtokl->size(); + std::vector<data_tok*> dtokl; + dtokl.reserve(s); + for (uint32_t k=0; k<s; k++) + { + data_tok* dtokp = pcbp->_pdtokl->at(k); + if (dtokp->decr_pg_cnt() == 0) + { + pending_txn_map_itr_t it; + switch (dtokp->wstate()) + { + case data_tok::ENQ_SUBM: + dtokl.push_back(dtokp); + tot_data_toks++; + dtokp->set_wstate(data_tok::ENQ); + if (dtokp->has_xid()) + // Ignoring return value here. A non-zero return can signify that the transaction + // has committed or aborted, and which was completed prior to the aio returning. + _tmap.set_aio_compl(dtokp->xid(), dtokp->rid()); + break; + case data_tok::DEQ_SUBM: + if (!dtokp->has_xid()) { + _lfc.decrEnqueuedRecordCount(dtokp->fid()); + } + dtokl.push_back(dtokp); + tot_data_toks++; + dtokp->set_wstate(data_tok::DEQ); + if (dtokp->has_xid()) + // Ignoring return value - see note above. + _tmap.set_aio_compl(dtokp->xid(), dtokp->rid()); + break; + case data_tok::ABORT_SUBM: + dtokl.push_back(dtokp); + tot_data_toks++; + dtokp->set_wstate(data_tok::ABORTED); + it = _txn_pending_map.find(dtokp->xid()); + if (it == _txn_pending_map.end()) + { + std::ostringstream oss; + oss << std::hex << "_txn_pending_set: abort xid=\"" + << qpid::linearstore::journal::jcntl::str2hexnum(dtokp->xid()) << "\""; + throw jexception(jerrno::JERR_MAP_NOTFOUND, oss.str(), "wmgr", "get_events"); + } + for (fidl_itr_t i=it->second.begin(); i!=it->second.end(); ++i) { + _lfc.decrEnqueuedRecordCount(*i); + } + _txn_pending_map.erase(it); + break; + case data_tok::COMMIT_SUBM: + dtokl.push_back(dtokp); + tot_data_toks++; + dtokp->set_wstate(data_tok::COMMITTED); + it = _txn_pending_map.find(dtokp->xid()); + if (it == _txn_pending_map.end()) + { + std::ostringstream oss; + oss << std::hex << "_txn_pending_set: commit xid=\"" + << qpid::linearstore::journal::jcntl::str2hexnum(dtokp->xid()) << "\""; + throw jexception(jerrno::JERR_MAP_NOTFOUND, oss.str(), "wmgr", "get_events"); + } + for (fidl_itr_t i=it->second.begin(); i!=it->second.end(); ++i) { + _lfc.decrEnqueuedRecordCount(*i); + } + _txn_pending_map.erase(it); + break; + case data_tok::ENQ_PART: + case data_tok::DEQ_PART: + case data_tok::ABORT_PART: + case data_tok::COMMIT_PART: + // ignore these + break; + default: + // throw for anything else + std::ostringstream oss; + oss << "dtok_id=" << dtokp->id() << " dtok_state=" << dtokp->wstate_str(); + throw jexception(jerrno::JERR_WMGR_BADDTOKSTATE, oss.str(), "wmgr", + "get_events"); + } + } + } + + // Increment the completed write offset + // NOTE: We cannot use _wrfc here, as it may have rotated since submitting count. + // Use stored pointer to fcntl in the pcb instead. + pcbp->_jfp->addCompletedDblkCount(pcbp->_wdblks); + pcbp->_jfp->decrOutstandingAioOperationCount(); + _jc->instr_decr_outstanding_aio_cnt(); + + // Clean up this pcb's data_tok list + pcbp->_pdtokl->clear(); + pcbp->_state = UNUSED; +//std::cout << "c" << pcbp->_index << pcbp->state_str(); // DEBUG + + // Perform AIO return callback + if (_cbp && tot_data_toks) + _cbp->wr_aio_cb(dtokl); + } + else // File header writes have no pcb + { +//std::cout << "f"; // DEBUG + file_hdr_t* fhp = (file_hdr_t*)aiocbp->u.c.buf; + _lfc.addWriteCompletedDblkCount(fhp->_file_number, QLS_JRNL_FHDR_RES_SIZE_SBLKS * QLS_SBLK_SIZE_DBLKS); + _lfc.decrOutstandingAioOperationCount(fhp->_file_number); + } + } + + return tot_data_toks; +} + +bool +wmgr::is_txn_synced(const std::string& xid) +{ + // Ignore xid not found error here + if (_tmap.is_txn_synced(xid) == txn_map::TMAP_NOT_SYNCED) + return false; + // Check for outstanding commit/aborts + pending_txn_map_itr_t it = _txn_pending_map.find(xid); + return it == _txn_pending_map.end(); +} + +void +wmgr::initialize(aio_callback* const cbp, + const uint32_t wcache_pgsize_sblks, + const uint16_t wcache_num_pages) +{ + + pmgr::initialize(cbp, wcache_pgsize_sblks, wcache_num_pages); + wmgr::clean(); + _page_cb_arr[0]._state = IN_USE; + _cached_offset_dblks = 0; + _enq_busy = false; +} + +iores +wmgr::pre_write_check(const _op_type op, + const data_tok* const dtokp, + const std::size_t /*xidsize*/, + const std::size_t /*dsize*/, + const bool /*external*/) const +{ + // Check status of current file + // TODO: Replace for LFC +/* + if (!_wrfc.is_wr_reset()) + { + if (!_wrfc.wr_reset()) + return RHM_IORES_FULL; + } +*/ + + // Check status of current page is ok for writing + if (_page_cb_arr[_pg_index]._state != IN_USE) + { + if (_page_cb_arr[_pg_index]._state == UNUSED) + _page_cb_arr[_pg_index]._state = IN_USE; + else if (_page_cb_arr[_pg_index]._state == AIO_PENDING) + return RHM_IORES_PAGE_AIOWAIT; + else + { + std::ostringstream oss; + oss << "jrnl=" << _jc->id() << " op=" << _op_str[op]; + oss << " index=" << _pg_index << " pg_state=" << _page_cb_arr[_pg_index].state_str(); + throw jexception(jerrno::JERR_WMGR_BADPGSTATE, oss.str(), "wmgr", "pre_write_check"); + } + } + + // operation-specific checks + switch (op) + { + case WMGR_ENQUEUE: + { + if (!dtokp->is_writable()) + { + std::ostringstream oss; + oss << "jrnl=" << _jc->id() << " op=" << _op_str[op]; + oss << " dtok_id=" << dtokp->id() << " dtok_state=" << dtokp->wstate_str(); + throw jexception(jerrno::JERR_WMGR_BADDTOKSTATE, oss.str(), "wmgr", + "pre_write_check"); + } + } + break; + case WMGR_DEQUEUE: + if (!dtokp->is_dequeueable()) + { + std::ostringstream oss; + oss << "jrnl=" << _jc->id() << " op=" << _op_str[op]; + oss << " dtok_id=" << dtokp->id() << " dtok_state=" << dtokp->wstate_str(); + throw jexception(jerrno::JERR_WMGR_BADDTOKSTATE, oss.str(), "wmgr", + "pre_write_check"); + } + break; + case WMGR_ABORT: + break; + case WMGR_COMMIT: + break; + } + + return RHM_IORES_SUCCESS; +} + +void +wmgr::dequeue_check(const std::string& xid, + const uint64_t drid) +{ + // First check emap + bool found = false; + uint64_t fid; + short eres = _emap.get_pfid(drid, fid); + if (eres < enq_map::EMAP_OK) { // fail + if (eres == enq_map::EMAP_RID_NOT_FOUND) { + if (xid.size()) { + found = _tmap.data_exists(xid, drid); + } + } else if (eres == enq_map::EMAP_LOCKED) { + std::ostringstream oss; + oss << std::hex << "drid=0x" << drid; + throw jexception(jerrno::JERR_MAP_LOCKED, oss.str(), "wmgr", "dequeue_check"); + } + } else { + found = true; + } + if (!found) { + std::ostringstream oss; + oss << "jrnl=" << _jc->id() << " drid=0x" << std::hex << drid; + throw jexception(jerrno::JERR_WMGR_DEQRIDNOTENQ, oss.str(), "wmgr", "dequeue_check"); + } +} + +void +wmgr::dblk_roundup() +{ + const uint32_t xmagic = QLS_EMPTY_MAGIC; + uint32_t wdblks = jrec::size_blks(_cached_offset_dblks, QLS_SBLK_SIZE_DBLKS) * QLS_SBLK_SIZE_DBLKS; + while (_cached_offset_dblks < wdblks) + { +//std::cout << "^0x" << std::hex << _cached_offset_dblks << "<0x" << wdblks << std::dec << std::flush; + void* wptr = (void*)((char*)_page_ptr_arr[_pg_index] + _pg_offset_dblks * QLS_DBLK_SIZE_BYTES); + std::memcpy(wptr, (const void*)&xmagic, sizeof(xmagic)); +#ifdef QLS_CLEAN + std::memset((char*)wptr + sizeof(xmagic), QLS_CLEAN_CHAR, QLS_DBLK_SIZE_BYTES - sizeof(xmagic)); +#endif + _pg_offset_dblks++; + _cached_offset_dblks++; + } +} + +void +wmgr::rotate_page() +{ +//std::cout << "^^^^^ wmgr::rotate_page() " << status_str() << " pi=" << _pg_index; // DEBUG + if (_pg_offset_dblks >= _cache_pgsize_sblks * QLS_SBLK_SIZE_DBLKS) + { + _pg_offset_dblks = 0; + _pg_cntr++; + } + if (++_pg_index >= _cache_num_pages) + _pg_index = 0; +//std::cout << "->" << _pg_index << std::endl; // DEBUG +} + +void +wmgr::clean() { + // Clean up allocated memory here +} + +const std::string +wmgr::status_str() const +{ + std::ostringstream oss; + oss << "wmgr: pi=" << _pg_index << " pc=" << _pg_cntr; + oss << " po=" << _pg_offset_dblks << " aer=" << _aio_evt_rem; + oss << " edac=" << (_enq_busy?"T":"F") << (_deq_busy?"T":"F"); + oss << (_abort_busy?"T":"F") << (_commit_busy?"T":"F"); + oss << " ps=["; + for (int i=0; i<_cache_num_pages; i++) + { + switch (_page_cb_arr[i]._state) + { + case UNUSED: oss << "-"; break; + case IN_USE: oss << "U"; break; + case AIO_PENDING: oss << "A"; break; + default: oss << _page_cb_arr[i]._state; + } + } + oss << "] "; + return oss.str(); +} + +// static + +const char* wmgr::_op_str[] = {"enqueue", "dequeue", "abort", "commit"}; + +}}} |