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mdbx-test: less probability for aborting nested transactions in nested testcase.

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Change-Id: Idf12b69313af7f11a0c9c457942d7a442e37e7b4
This commit is contained in:
Leonid Yuriev 2019-10-18 08:46:52 +03:00
parent b11d655173
commit 7878b2e31d
3 changed files with 8 additions and 1 deletions
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5
test/test.h
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@ -298,7 +298,10 @@ class testcase_nested : public testcase {
bool trim_tail(unsigned window_width);
bool grow_head(unsigned head_count);
bool pop_txn(bool abort);
bool pop_txn() { return pop_txn(flipcoin_x2()); }
bool pop_txn() {
return pop_txn(inherited::is_nested_txn_available() ? flipcoin_x3()
: flipcoin_x2());
}
void push_txn();
bool stochastic_breakable_restart_with_nested(bool force_restart = false);

2
test/utils.cc
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@ -332,6 +332,8 @@ double double_from_upper(uint64_t salt) {
bool flipcoin() { return bleach32((uint32_t)entropy_ticks()) & 1; }
bool flipcoin_x2() { return (bleach32((uint32_t)entropy_ticks()) & 3) == 0; }
bool flipcoin_x3() { return (bleach32((uint32_t)entropy_ticks()) & 7) == 0; }
bool flipcoin_x4() { return (bleach32((uint32_t)entropy_ticks()) & 15) == 0; }
bool jitter(unsigned probability_percent) {
const uint32_t top = UINT32_MAX - UINT32_MAX % 100;

2
test/utils.h
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@ -356,5 +356,7 @@ void prng_fill(void *ptr, size_t bytes);
bool flipcoin();
bool flipcoin_x2();
bool flipcoin_x3();
bool flipcoin_x4();
bool jitter(unsigned probability_percent);
void jitter_delay(bool extra = false);