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mdbx: выделение cursor_get() для уменьшения кол-ва проверок.

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Леонид Юрьев (Leonid Yuriev)
2022-12-27 16:39:07 +03:00
parent df63ff0e7e
commit ef460a9229
1 changed files with 38 additions and 30 deletions
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68
src/core.c
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@@ -3329,6 +3329,8 @@ static int __must_check_result audit_ex(MDBX_txn *txn, size_t retired_stored,
static int __must_check_result page_check(const MDBX_cursor *const mc,
const MDBX_page *const mp);
static int __must_check_result cursor_check(const MDBX_cursor *mc);
static int __must_check_result cursor_get(MDBX_cursor *mc, MDBX_val *key,
MDBX_val *data, MDBX_cursor_op op);
static int __must_check_result cursor_put_checklen(MDBX_cursor *mc,
const MDBX_val *key,
MDBX_val *data,
@@ -7293,7 +7295,7 @@ next_gc:;
#endif /* MDBX_ENABLE_PROFGC */
/* Seek first/next GC record */
ret.err = mdbx_cursor_get(gc, &key, NULL, op);
ret.err = cursor_get(gc, &key, NULL, op);
if (unlikely(ret.err != MDBX_SUCCESS)) {
if (unlikely(ret.err != MDBX_NOTFOUND))
goto fail;
@@ -9863,7 +9865,7 @@ __cold static int audit_ex(MDBX_txn *txn, size_t retired_stored,
size_t gc = 0;
MDBX_val key, data;
while ((rc = mdbx_cursor_get(&cx.outer, &key, &data, MDBX_NEXT)) == 0) {
while ((rc = cursor_get(&cx.outer, &key, &data, MDBX_NEXT)) == 0) {
if (!dont_filter_gc) {
if (unlikely(key.iov_len != sizeof(txnid_t)))
return MDBX_CORRUPTED;
@@ -10204,7 +10206,7 @@ retry:
ctx->cleaned_id <= env->me_lck->mti_oldest_reader.weak);
key.iov_base = &ctx->cleaned_id;
key.iov_len = sizeof(ctx->cleaned_id);
rc = mdbx_cursor_get(&ctx->cursor, &key, NULL, MDBX_SET);
rc = cursor_set(&ctx->cursor, &key, NULL, MDBX_SET).err;
if (rc == MDBX_NOTFOUND)
continue;
if (unlikely(rc != MDBX_SUCCESS))
@@ -10601,7 +10603,7 @@ retry:
ctx->rid -= 1;
key.iov_base = &ctx->rid;
key.iov_len = sizeof(ctx->rid);
rc = mdbx_cursor_get(&ctx->cursor, &key, &data, MDBX_SET_KEY);
rc = cursor_set(&ctx->cursor, &key, &data, MDBX_SET_KEY).err;
if (unlikely(rc == MDBX_SUCCESS)) {
DEBUG("%s: GC's id %" PRIaTXN " is present, going to first",
dbg_prefix_mode, ctx->rid);
@@ -10844,7 +10846,7 @@ retry:
dbg_prefix_mode, fill_gc_id, ctx->filled_slot);
key.iov_base = &fill_gc_id;
key.iov_len = sizeof(fill_gc_id);
rc = mdbx_cursor_get(&ctx->cursor, &key, &data, MDBX_SET_KEY);
rc = cursor_set(&ctx->cursor, &key, &data, MDBX_SET_KEY).err;
if (unlikely(rc != MDBX_SUCCESS))
goto bailout;
}
@@ -15869,7 +15871,7 @@ int mdbx_get_equal_or_great(MDBX_txn *txn, MDBX_dbi dbi, MDBX_val *key,
if (unlikely(rc != MDBX_SUCCESS))
return rc;
return mdbx_cursor_get(&cx.outer, key, data, MDBX_SET_LOWERBOUND);
return cursor_get(&cx.outer, key, data, MDBX_SET_LOWERBOUND);
}
int mdbx_get_ex(MDBX_txn *txn, MDBX_dbi dbi, MDBX_val *key, MDBX_val *data,
@@ -16545,20 +16547,11 @@ static int cursor_last(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data) {
return MDBX_SUCCESS;
}
__hot int mdbx_cursor_get(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data,
MDBX_cursor_op op) {
if (unlikely(mc == NULL))
return MDBX_EINVAL;
if (unlikely(mc->mc_signature != MDBX_MC_LIVE))
return (mc->mc_signature == MDBX_MC_READY4CLOSE) ? MDBX_EINVAL
: MDBX_EBADSIGN;
int rc = check_txn(mc->mc_txn, MDBX_TXN_BLOCKED);
if (unlikely(rc != MDBX_SUCCESS))
return rc;
static __hot int cursor_get(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data,
MDBX_cursor_op op) {
int (*mfunc)(MDBX_cursor * mc, MDBX_val * key, MDBX_val * data);
int rc;
switch (op) {
case MDBX_GET_CURRENT: {
if (unlikely(!(mc->mc_flags & C_INITIALIZED)))
@@ -16597,8 +16590,8 @@ __hot int mdbx_cursor_get(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data,
if (unlikely(rc))
return rc;
} else {
rc = mdbx_cursor_get(&mc->mc_xcursor->mx_cursor, data, NULL,
MDBX_GET_CURRENT);
rc = cursor_get(&mc->mc_xcursor->mx_cursor, data, NULL,
MDBX_GET_CURRENT);
if (unlikely(rc))
return rc;
}
@@ -16704,8 +16697,7 @@ __hot int mdbx_cursor_get(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data,
mc->mc_ki[mc->mc_top] = (indx_t)page_numkeys(mc->mc_pg[mc->mc_top]);
mc->mc_flags |= C_EOF;
return MDBX_NOTFOUND;
}
{
} else {
MDBX_node *node = page_node(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]);
if (!(node_flags(node) & F_DUPDATA)) {
get_key_optional(node, key);
@@ -16775,6 +16767,22 @@ __hot int mdbx_cursor_get(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data,
return rc;
}
int mdbx_cursor_get(MDBX_cursor *mc, MDBX_val *key, MDBX_val *data,
MDBX_cursor_op op) {
if (unlikely(mc == NULL))
return MDBX_EINVAL;
if (unlikely(mc->mc_signature != MDBX_MC_LIVE))
return (mc->mc_signature == MDBX_MC_READY4CLOSE) ? MDBX_EINVAL
: MDBX_EBADSIGN;
int rc = check_txn(mc->mc_txn, MDBX_TXN_BLOCKED);
if (unlikely(rc != MDBX_SUCCESS))
return rc;
return cursor_get(mc, key, data, op);
}
static int cursor_first_batch(MDBX_cursor *mc) {
if (!(mc->mc_flags & C_INITIALIZED) || mc->mc_top) {
int err = page_search(mc, NULL, MDBX_PS_FIRST);
@@ -16997,10 +17005,10 @@ static __hot int cursor_put_nochecklen(MDBX_cursor *mc, const MDBX_val *key,
/* Опция MDBX_CURRENT означает, что запрошено обновление текущей записи,
* на которой сейчас стоит курсор. Проверяем что переданный ключ совпадает
* со значением в текущей позиции курсора.
* Здесь проще вызвать mdbx_cursor_get(), так как для обслуживания таблиц
* Здесь проще вызвать cursor_get(), так как для обслуживания таблиц
* с MDBX_DUPSORT также требуется текущий размер данных. */
MDBX_val current_key, current_data;
err = mdbx_cursor_get(mc, &current_key, &current_data, MDBX_GET_CURRENT);
err = cursor_get(mc, &current_key, &current_data, MDBX_GET_CURRENT);
if (unlikely(err != MDBX_SUCCESS))
return err;
if (mc->mc_dbx->md_cmp(key, &current_key) != 0)
@@ -20865,7 +20873,7 @@ int mdbx_put(MDBX_txn *txn, MDBX_dbi dbi, const MDBX_val *key, MDBX_val *data,
/* LY: support for update (explicit overwrite) */
if (flags & MDBX_CURRENT) {
rc = mdbx_cursor_get(&cx.outer, (MDBX_val *)key, NULL, MDBX_SET);
rc = cursor_set(&cx.outer, (MDBX_val *)key, NULL, MDBX_SET).err;
if (likely(rc == MDBX_SUCCESS) &&
(txn->mt_dbs[dbi].md_flags & MDBX_DUPSORT) &&
(flags & MDBX_ALLDUPS) == 0) {
@@ -21288,7 +21296,7 @@ __cold static int env_compact(MDBX_env *env, MDBX_txn *read_txn,
read_txn->mt_dbs[FREE_DBI].md_leaf_pages +
read_txn->mt_dbs[FREE_DBI].md_overflow_pages;
MDBX_val key, data;
while ((rc = mdbx_cursor_get(&couple.outer, &key, &data, MDBX_NEXT)) ==
while ((rc = cursor_get(&couple.outer, &key, &data, MDBX_NEXT)) ==
MDBX_SUCCESS) {
const MDBX_PNL pnl = data.iov_base;
if (unlikely(data.iov_len % sizeof(pgno_t) ||
@@ -23802,7 +23810,7 @@ int mdbx_estimate_move(const MDBX_cursor *cursor, MDBX_val *key, MDBX_val *data,
}
next.outer.mc_signature = MDBX_MC_LIVE;
rc = mdbx_cursor_get(&next.outer, key, data, move_op);
rc = cursor_get(&next.outer, key, data, move_op);
if (unlikely(rc != MDBX_SUCCESS &&
(rc != MDBX_NOTFOUND || !(next.outer.mc_flags & C_INITIALIZED))))
return rc;
@@ -24031,7 +24039,7 @@ int mdbx_replace_ex(MDBX_txn *txn, MDBX_dbi dbi, const MDBX_val *key,
/* убираем лишний бит, он был признаком запрошенного режима */
flags -= MDBX_NOOVERWRITE;
rc = mdbx_cursor_get(&cx.outer, &present_key, old_data, MDBX_GET_BOTH);
rc = cursor_set(&cx.outer, &present_key, old_data, MDBX_GET_BOTH).err;
if (rc != MDBX_SUCCESS)
goto bailout;
} else {
@@ -24039,7 +24047,7 @@ int mdbx_replace_ex(MDBX_txn *txn, MDBX_dbi dbi, const MDBX_val *key,
if (unlikely(new_data && old_data->iov_base == new_data->iov_base))
return MDBX_EINVAL;
MDBX_val present_data;
rc = mdbx_cursor_get(&cx.outer, &present_key, &present_data, MDBX_SET_KEY);
rc = cursor_set(&cx.outer, &present_key, &present_data, MDBX_SET_KEY).err;
if (unlikely(rc != MDBX_SUCCESS)) {
old_data->iov_base = NULL;
old_data->iov_len = 0;