56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
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#include "blockstore.h"
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int blockstore::dequeue_stable(blockstore_operation *op)
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{
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auto dirty_it = dirty_db.find((obj_ver_id){
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.oid = op->oid,
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.version = op->version,
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});
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if (dirty_it == dirty_db.end())
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{
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auto clean_it = object_db.find(op->oid);
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if (clean_it == object_db.end() || clean_it->second.version < op->version)
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{
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// No such object version
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op->retval = EINVAL;
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}
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else
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{
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// Already stable
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op->retval = 0;
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}
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op->callback(op);
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return 1;
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}
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else if (IS_UNSYNCED(dirty_it->second.state))
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{
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// Object not synced yet. Caller must sync it first
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op->retval = EAGAIN;
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op->callback(op);
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return 1;
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}
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else if (IS_STABLE(dirty_it->second.state))
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{
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// Already stable
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op->retval = 0;
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op->callback(op);
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return 1;
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}
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return 0;
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}
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void blockstore::handle_stable_event(ring_data_t *data, blockstore_operation *op)
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{
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if (data->res < 0)
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{
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// sync error
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// FIXME: our state becomes corrupted after a write error. maybe do something better than just die
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throw new std::runtime_error("write operation failed. in-memory state is corrupted. AAAAAAAaaaaaaaaa!!!111");
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}
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op->pending_ops--;
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if (op->pending_ops == 0)
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{
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}
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}
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