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Add WRITE_STABLE operation for future replication support

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This commit is contained in:
Vitaliy Filippov
2020-07-05 01:48:02 +03:00
parent 416a80b099
commit ec7acc8f3a
8 changed files with 78 additions and 35 deletions
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blockstore_write.cpp
+13 -7
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@@ -78,7 +78,7 @@ bool blockstore_impl_t::enqueue_write(blockstore_op_t *op)
.state = (uint32_t)(
is_del
? (BS_ST_DELETE | BS_ST_IN_FLIGHT)
: (op->len == block_size || deleted
: (op->opcode == BS_OP_WRITE_STABLE ? BS_ST_INSTANT : 0) | (op->len == block_size || deleted
? (BS_ST_BIG_WRITE | BS_ST_IN_FLIGHT)
: (is_inflight_big ? (BS_ST_SMALL_WRITE | BS_ST_WAIT_BIG) : (BS_ST_SMALL_WRITE | BS_ST_IN_FLIGHT)))
),
@@ -212,8 +212,10 @@ int blockstore_impl_t::dequeue_write(blockstore_op_t *op)
}
}
// Then pre-fill journal entry
journal_entry_small_write *je = (journal_entry_small_write*)
prefill_single_journal_entry(journal, JE_SMALL_WRITE, sizeof(journal_entry_small_write));
journal_entry_small_write *je = (journal_entry_small_write*)prefill_single_journal_entry(
journal, op->opcode == BS_OP_WRITE_STABLE ? JE_SMALL_WRITE_INSTANT : JE_SMALL_WRITE,
sizeof(journal_entry_small_write)
);
dirty_it->second.journal_sector = journal.sector_info[journal.cur_sector].offset;
journal.used_sectors[journal.sector_info[journal.cur_sector].offset]++;
#ifdef BLOCKSTORE_DEBUG
@@ -310,7 +312,10 @@ resume_2:
{
return 0;
}
je = (journal_entry_big_write*)prefill_single_journal_entry(journal, JE_BIG_WRITE, sizeof(journal_entry_big_write));
je = (journal_entry_big_write*)prefill_single_journal_entry(
journal, op->opcode == BS_OP_WRITE_STABLE ? JE_BIG_WRITE_INSTANT : JE_BIG_WRITE,
sizeof(journal_entry_big_write)
);
dirty_it->second.journal_sector = journal.sector_info[journal.cur_sector].offset;
journal.sector_info[journal.cur_sector].dirty = false;
journal.used_sectors[journal.sector_info[journal.cur_sector].offset]++;
@@ -349,7 +354,7 @@ resume_4:
}
dirty_it->second.state = (dirty_it->second.state & ~BS_ST_WORKFLOW_MASK)
| (imm ? BS_ST_SYNCED : BS_ST_WRITTEN);
if (imm && (dirty_it->second.state & BS_ST_TYPE_MASK) == BS_ST_DELETE)
if (imm && ((dirty_it->second.state & BS_ST_TYPE_MASK) == BS_ST_DELETE || (dirty_it->second.state & BS_ST_INSTANT)))
{
// Deletions are treated as immediately stable
mark_stable(dirty_it->first);
@@ -465,8 +470,9 @@ int blockstore_impl_t::dequeue_del(blockstore_op_t *op)
}
}
// Pre-fill journal entry
journal_entry_del *je = (journal_entry_del*)
prefill_single_journal_entry(journal, JE_DELETE, sizeof(struct journal_entry_del));
journal_entry_del *je = (journal_entry_del*)prefill_single_journal_entry(
journal, JE_DELETE, sizeof(struct journal_entry_del)
);
dirty_it->second.journal_sector = journal.sector_info[journal.cur_sector].offset;
journal.used_sectors[journal.sector_info[journal.cur_sector].offset]++;
#ifdef BLOCKSTORE_DEBUG