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40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
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/// \copyright SPDX-License-Identifier: Apache-2.0
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/// \author Леонид Юрьев aka Leonid Yuriev <leo@yuriev.ru> \date 2015-2024
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#pragma once
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#include "essentials.h"
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typedef struct gc_update_context {
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size_t loop, reserve_adj;
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size_t retired_stored;
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size_t amount, reserved, cleaned_slot, reused_slot, fill_idx;
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txnid_t cleaned_id, rid;
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bool lifo, dense;
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#if MDBX_ENABLE_BIGFOOT
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txnid_t bigfoot;
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#endif /* MDBX_ENABLE_BIGFOOT */
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union {
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MDBX_cursor cursor;
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cursor_couple_t couple;
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};
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} gcu_t;
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static inline int gc_update_init(MDBX_txn *txn, gcu_t *ctx) {
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memset(ctx, 0, offsetof(gcu_t, cursor));
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ctx->lifo = (txn->env->flags & MDBX_LIFORECLAIM) != 0;
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#if MDBX_ENABLE_BIGFOOT
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ctx->bigfoot = txn->txnid;
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#endif /* MDBX_ENABLE_BIGFOOT */
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return cursor_init(&ctx->cursor, txn, FREE_DBI);
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}
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#define ALLOC_DEFAULT 0
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#define ALLOC_RESERVE 1
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#define ALLOC_UNIMPORTANT 2
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MDBX_INTERNAL pgr_t gc_alloc_ex(const MDBX_cursor *const mc, const size_t num,
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uint8_t flags);
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MDBX_INTERNAL pgr_t gc_alloc_single(const MDBX_cursor *const mc);
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MDBX_INTERNAL int gc_update(MDBX_txn *txn, gcu_t *ctx);
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