Ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c52d4d35cc6a173c89eda98ceffa2dcf)
Data Structures | Macros | Typedefs | Functions | Variables
random.c File Reference
#include "ruby/internal/config.h"
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <float.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "internal.h"
#include "internal/array.h"
#include "internal/compilers.h"
#include "internal/numeric.h"
#include "internal/random.h"
#include "internal/sanitizers.h"
#include "internal/variable.h"
#include "ruby_atomic.h"
#include "ruby/random.h"
#include "ruby/ractor.h"
#include "missing/mt19937.c"
#include "siphash.c"

Go to the source code of this file.

Data Structures

struct  rb_random_mt_t
 
struct  hash_salt_t
 

Macros

#define DEFAULT_SEED_CNT   4
 
#define SIZEOF_INT32   (31/CHAR_BIT + 1)
 
#define id_minus   '-'
 
#define id_plus   '+'
 
#define random_mark   rb_random_mark
 
#define random_free   RUBY_TYPED_DEFAULT_FREE
 
#define random_mt_mark   rb_random_mark
 
#define DEFAULT_SEED_LEN   (DEFAULT_SEED_CNT * (int)sizeof(int32_t))
 
#define USE_DEV_URANDOM   0
 
#define fill_random_bytes_urandom(seed, size)   -1
 
#define fill_random_bytes_syscall(seed, size, need_secure)   -1
 
#define fill_random_bytes   ruby_fill_random_bytes
 
#define with_random_seed(size, add)
 
#define SIP_HASH_STREAMING   0
 
#define sip_hash13   ruby_sip_hash13
 
#define BYTE_ORDER   LITTLE_ENDIAN
 
#define LITTLE_ENDIAN   1234
 
#define BIG_ENDIAN   4321
 

Typedefs

typedef int int_must_be_32bit_at_least[sizeof(int) *CHAR_BIT< 32 ? -1 :1]
 

Functions

 RB_RANDOM_INTERFACE_DECLARE (rand_mt)
 
unsigned int rb_genrand_int32 (void)
 
double rb_genrand_real (void)
 
void random_mark (void *ptr)
 
void rb_random_base_init (rb_random_t *rnd)
 
int ruby_fill_random_bytes (void *seed, size_t size, int need_secure)
 
unsigned long rb_genrand_ulong_limited (unsigned long limit)
 
unsigned int rb_random_int32 (VALUE obj)
 
double rb_int_pair_to_real (uint32_t a, uint32_t b, int excl)
 
double rb_random_real (VALUE obj)
 
unsigned long rb_random_ulong_limited (VALUE obj, unsigned long limit)
 
void rb_rand_bytes_int32 (rb_random_get_int32_func *get_int32, rb_random_t *rnd, void *p, size_t n)
 
VALUE rb_random_bytes (VALUE obj, long n)
 
 NO_SANITIZE ("unsigned-integer-overflow", extern st_index_t rb_hash_start(st_index_t h))
 
st_index_t rb_hash_start (st_index_t h)
 
st_index_t rb_memhash (const void *ptr, long len)
 
void Init_RandomSeedCore (void)
 
void rb_reset_random_seed (void)
 
void InitVM_Random (void)
 
void Init_Random (void)
 

Variables

VALUE rb_cRandom
 
const rb_data_type_t rb_random_data_type
 

Macro Definition Documentation

◆ BIG_ENDIAN

#define BIG_ENDIAN   4321

Definition at line 1597 of file random.c.

◆ BYTE_ORDER

#define BYTE_ORDER   LITTLE_ENDIAN

Definition at line 1591 of file random.c.

◆ DEFAULT_SEED_CNT

#define DEFAULT_SEED_CNT   4

Definition at line 127 of file random.c.

◆ DEFAULT_SEED_LEN

#define DEFAULT_SEED_LEN   (DEFAULT_SEED_CNT * (int)sizeof(int32_t))

Definition at line 418 of file random.c.

◆ fill_random_bytes

#define fill_random_bytes   ruby_fill_random_bytes

Definition at line 582 of file random.c.

◆ fill_random_bytes_syscall

#define fill_random_bytes_syscall (   seed,
  size,
  need_secure 
)    -1

Definition at line 571 of file random.c.

◆ fill_random_bytes_urandom

#define fill_random_bytes_urandom (   seed,
  size 
)    -1

Definition at line 463 of file random.c.

◆ id_minus

#define id_minus   '-'

Definition at line 227 of file random.c.

◆ id_plus

#define id_plus   '+'

Definition at line 228 of file random.c.

◆ LITTLE_ENDIAN

#define LITTLE_ENDIAN   1234

Definition at line 1594 of file random.c.

◆ random_free

#define random_free   RUBY_TYPED_DEFAULT_FREE

Definition at line 241 of file random.c.

◆ random_mark

#define random_mark   rb_random_mark

Definition at line 233 of file random.c.

◆ random_mt_mark

#define random_mt_mark   rb_random_mark

Definition at line 259 of file random.c.

◆ sip_hash13

#define sip_hash13   ruby_sip_hash13

Definition at line 1586 of file random.c.

◆ SIP_HASH_STREAMING

#define SIP_HASH_STREAMING   0

Definition at line 1585 of file random.c.

◆ SIZEOF_INT32

#define SIZEOF_INT32   (31/CHAR_BIT + 1)

Definition at line 202 of file random.c.

◆ USE_DEV_URANDOM

#define USE_DEV_URANDOM   0

Definition at line 423 of file random.c.

◆ with_random_seed

#define with_random_seed (   size,
  add 
)
Value:
for (uint32_t seedbuf[(size)+(add)], loop = (fill_random_seed(seedbuf, (size)), 1); \
loop; explicit_bzero(seedbuf, (size)*sizeof(seedbuf[0])), loop = 0)
#define add(x, y)
Definition: date_strftime.c:23
void explicit_bzero(void *b, size_t len)
voidpf void uLong size
Definition: ioapi.h:138
unsigned int uint32_t
Definition: sha2.h:101

Definition at line 634 of file random.c.

Typedef Documentation

◆ int_must_be_32bit_at_least

typedef int int_must_be_32bit_at_least[sizeof(int) *CHAR_BIT< 32 ? -1 :1]

Definition at line 73 of file random.c.

Function Documentation

◆ Init_Random()

void Init_Random ( void  )

Definition at line 1754 of file random.c.

References InitVM, and rb_intern().

◆ Init_RandomSeedCore()

void Init_RandomSeedCore ( void  )

Definition at line 1642 of file random.c.

References DEFAULT_SEED_CNT, explicit_bzero(), FALSE, fill_random_bytes, and with_random_seed.

◆ InitVM_Random()

void InitVM_Random ( void  )

◆ NO_SANITIZE()

NO_SANITIZE ( "unsigned-integer-overflow"  ,
extern st_index_t   rb_hash_startst_index_t h 
)

◆ random_mark()

void random_mark ( void *  ptr)

Definition at line 236 of file random.c.

References ptr, and rb_gc_mark().

◆ rb_genrand_int32()

unsigned int rb_genrand_int32 ( void  )

Definition at line 189 of file random.c.

References rb_random_mt_t::mt.

◆ rb_genrand_real()

double rb_genrand_real ( void  )

Definition at line 196 of file random.c.

References rb_random_mt_t::mt.

◆ rb_genrand_ulong_limited()

unsigned long rb_genrand_ulong_limited ( unsigned long  limit)

Definition at line 975 of file random.c.

References rb_random_mt_t::base.

◆ rb_hash_start()

st_index_t rb_hash_start ( st_index_t  h)

Definition at line 1623 of file random.c.

References st_hash_start.

◆ rb_int_pair_to_real()

double rb_int_pair_to_real ( uint32_t  a,
uint32_t  b,
int  excl 
)

Definition at line 1036 of file random.c.

◆ rb_memhash()

st_index_t rb_memhash ( const void *  ptr,
long  len 
)

◆ rb_rand_bytes_int32()

void rb_rand_bytes_int32 ( rb_random_get_int32_func get_int32,
rb_random_t rnd,
void *  p,
size_t  n 
)

Definition at line 1182 of file random.c.

References CHAR_BIT, ptr, and SIZEOF_INT32.

◆ rb_random_base_init()

void rb_random_base_init ( rb_random_t rnd)

Definition at line 333 of file random.c.

References INT2FIX, and rb_random_struct::seed.

◆ rb_random_bytes()

VALUE rb_random_bytes ( VALUE  obj,
long  n 
)

Definition at line 1205 of file random.c.

References NULL.

◆ rb_random_int32()

unsigned int rb_random_int32 ( VALUE  obj)

Definition at line 1004 of file random.c.

◆ RB_RANDOM_INTERFACE_DECLARE()

RB_RANDOM_INTERFACE_DECLARE ( rand_mt  )

◆ rb_random_real()

double rb_random_real ( VALUE  obj)

Definition at line 1047 of file random.c.

References NUM2DBL, rb_eRangeError, rb_funcallv, rb_raise(), and TRUE.

◆ rb_random_ulong_limited()

unsigned long rb_random_ulong_limited ( VALUE  obj,
unsigned long  limit 
)

◆ rb_reset_random_seed()

void rb_reset_random_seed ( void  )

◆ ruby_fill_random_bytes()

int ruby_fill_random_bytes ( void *  seed,
size_t  size,
int  need_secure 
)

Definition at line 575 of file random.c.

References fill_random_bytes_syscall, and fill_random_bytes_urandom.

Variable Documentation

◆ key

Definition at line 1608 of file random.c.

◆ rb_cRandom

VALUE rb_cRandom

Definition at line 226 of file random.c.

Referenced by InitVM_Random().

◆ rb_random_data_type

const rb_data_type_t rb_random_data_type
Initial value:
= {
"random",
{
random_memsize,
},
}
#define random_mark
Definition: random.c:233
#define random_free
Definition: random.c:241
@ RUBY_TYPED_FREE_IMMEDIATELY
Definition: rtypeddata.h:62

Definition at line 249 of file random.c.

◆ u32

Definition at line 1609 of file random.c.