random.h File Reference

#include <consensus/amount.h>
#include <random.h>
#include <uint256.h>
#include <cstdint>

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Enumerations
enum class	SeedRand { ZEROS , SEED }

Functions
void	Seed (FastRandomContext &ctx)
	Seed the given random ctx or use the seed passed in via an environment var. More...
static void	SeedInsecureRand (SeedRand seed=SeedRand::SEED)
static uint32_t	InsecureRand32 ()
static uint256	InsecureRand256 ()
static uint64_t	InsecureRandBits (int bits)
static uint64_t	InsecureRandRange (uint64_t range)
static bool	InsecureRandBool ()
static CAmount	InsecureRandMoneyAmount ()

Variables
FastRandomContext	g_insecure_rand_ctx
	This global and the helpers that use it are not thread-safe. More...
bool	g_mock_deterministic_tests
	Flag to make GetRand in random.h return the same number. More...

Enumeration Type Documentation

SeedRand

enum SeedRand

strong

Enumerator
ZEROS	Seed with a compile time constant of zeros.
SEED	Call the Seed() helper.

Definition at line 28 of file random.h.

Function Documentation

InsecureRand256()

static uint256 InsecureRand256 ( )

inlinestatic

Definition at line 50 of file random.h.

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InsecureRand32()

static uint32_t InsecureRand32 ( )

inlinestatic

Definition at line 45 of file random.h.

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InsecureRandBits()

static uint64_t InsecureRandBits ( int  bits )

inlinestatic

Definition at line 55 of file random.h.

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InsecureRandBool()

static bool InsecureRandBool ( )

inlinestatic

Definition at line 65 of file random.h.

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InsecureRandMoneyAmount()

static CAmount InsecureRandMoneyAmount ( )

inlinestatic

Definition at line 70 of file random.h.

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InsecureRandRange()

static uint64_t InsecureRandRange ( uint64_t  range )

inlinestatic

Definition at line 60 of file random.h.

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Seed()

void Seed

(

FastRandomContext &

ctx

)

Seed the given random ctx or use the seed passed in via an environment var.

Definition at line 24 of file random.cpp.

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SeedInsecureRand()

static void SeedInsecureRand ( SeedRand  seed = SeedRand::SEED )

inlinestatic

Definition at line 36 of file random.h.

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Variable Documentation

g_insecure_rand_ctx

FastRandomContext g_insecure_rand_ctx

extern

This global and the helpers that use it are not thread-safe.

If thread-safety is needed, the global could be made thread_local (given that thread_local is supported on all architectures we support) or a per-thread instance could be used in the multi-threaded test.

Definition at line 14 of file random.cpp.

g_mock_deterministic_tests

bool g_mock_deterministic_tests

extern

Flag to make GetRand in random.h return the same number.

Definition at line 566 of file random.cpp.