86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
#pragma once
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// States are not stored on disk. Instead, they're deduced from the journal
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#define BS_ST_SMALL_WRITE 0x01
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#define BS_ST_BIG_WRITE 0x02
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#define BS_ST_DELETE 0x03
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#define BS_ST_WAIT_DEL 0x10
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#define BS_ST_WAIT_BIG 0x20
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#define BS_ST_IN_FLIGHT 0x30
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#define BS_ST_SUBMITTED 0x40
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#define BS_ST_WRITTEN 0x50
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#define BS_ST_SYNCED 0x60
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#define BS_ST_STABLE 0x70
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#define BS_ST_INSTANT 0x100
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#define BS_ST_TYPE_MASK 0x0F
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#define BS_ST_WORKFLOW_MASK 0xF0
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#define IS_IN_FLIGHT(st) (((st) & 0xF0) <= BS_ST_SUBMITTED)
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#define IS_STABLE(st) (((st) & 0xF0) == BS_ST_STABLE)
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#define IS_SYNCED(st) (((st) & 0xF0) >= BS_ST_SYNCED)
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#define IS_JOURNAL(st) (((st) & 0x0F) == BS_ST_SMALL_WRITE)
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#define IS_BIG_WRITE(st) (((st) & 0x0F) == BS_ST_BIG_WRITE)
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#define IS_DELETE(st) (((st) & 0x0F) == BS_ST_DELETE)
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#define IS_INSTANT(st) (((st) & BS_ST_TYPE_MASK) == BS_ST_DELETE || ((st) & BS_ST_INSTANT))
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#define BS_SUBMIT_CHECK_SQES(n) \
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if (ringloop->space_left() < (n))\
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{\
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/* Pause until there are more requests available */\
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PRIV(op)->wait_detail = (n);\
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PRIV(op)->wait_for = WAIT_SQE;\
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return 0;\
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}
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#define BS_SUBMIT_GET_SQE(sqe, data) \
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BS_SUBMIT_GET_ONLY_SQE(sqe); \
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struct ring_data_t *data = ((ring_data_t*)sqe->user_data)
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#define BS_SUBMIT_GET_ONLY_SQE(sqe) \
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struct io_uring_sqe *sqe = get_sqe();\
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if (!sqe)\
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{\
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/* Pause until there are more requests available */\
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PRIV(op)->wait_detail = 1;\
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PRIV(op)->wait_for = WAIT_SQE;\
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return 0;\
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}
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#define BS_SUBMIT_GET_SQE_DECL(sqe) \
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sqe = get_sqe();\
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if (!sqe)\
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{\
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/* Pause until there are more requests available */\
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PRIV(op)->wait_detail = 1;\
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PRIV(op)->wait_for = WAIT_SQE;\
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return 0;\
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}
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#define PRIV(op) ((blockstore_op_private_t*)(op)->private_data)
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#define FINISH_OP(op) PRIV(op)->~blockstore_op_private_t(); std::function<void (blockstore_op_t*)>(op->callback)(op)
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// Suspend operation until there are more free SQEs
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#define WAIT_SQE 1
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// Suspend operation until there are <wait_detail> bytes of free space in the journal on disk
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#define WAIT_JOURNAL 3
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// Suspend operation until the next journal sector buffer is free
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#define WAIT_JOURNAL_BUFFER 4
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// Suspend operation until there is some free space on the data device
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#define WAIT_FREE 5
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#define COPY_BUF_JOURNAL 1
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#define COPY_BUF_DATA 2
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#define COPY_BUF_ZERO 4
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#define COPY_BUF_CSUM_FILL 8
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#define COPY_BUF_COALESCED 16
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#define COPY_BUF_META_BLOCK 32
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#define COPY_BUF_JOURNALED_BIG 64
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#define STAB_SPLIT_DONE 1
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#define STAB_SPLIT_WAIT 2
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#define STAB_SPLIT_SYNC 3
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#define STAB_SPLIT_TODO 4
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