Ruby  2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)
Data Structures | Macros | Typedefs | Functions | Variables
random.c File Reference
#include "internal.h"
#include <limits.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <math.h>
#include <errno.h>
#include "ruby_atomic.h"
#include "missing/mt19937.c"
#include "siphash.c"

Go to the source code of this file.

Data Structures

struct  rb_random_t
 
struct  seed_keys_t
 

Macros

#define DEFAULT_SEED_CNT   4
 
#define SIZEOF_INT32   (31/CHAR_BIT + 1)
 
#define id_minus   '-'
 
#define id_plus   '+'
 
#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 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

unsigned int rb_genrand_int32 (void)
 
double rb_genrand_real (void)
 
 NORETURN (static void domain_error(void))
 
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_random_real (VALUE obj)
 
unsigned long rb_random_ulong_limited (VALUE obj, unsigned long limit)
 
VALUE rb_random_bytes (VALUE obj, long n)
 
 NORETURN (static void invalid_argument(VALUE))
 
 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
 

Macro Definition Documentation

◆ BIG_ENDIAN

#define BIG_ENDIAN   4321

Definition at line 1408 of file random.c.

◆ BYTE_ORDER

#define BYTE_ORDER   LITTLE_ENDIAN

Definition at line 1402 of file random.c.

◆ DEFAULT_SEED_CNT

#define DEFAULT_SEED_CNT   4

Definition at line 91 of file random.c.

◆ DEFAULT_SEED_LEN

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

Definition at line 275 of file random.c.

◆ fill_random_bytes

#define fill_random_bytes   ruby_fill_random_bytes

Definition at line 441 of file random.c.

◆ fill_random_bytes_syscall

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

Definition at line 430 of file random.c.

◆ fill_random_bytes_urandom

#define fill_random_bytes_urandom (   seed,
  size 
)    -1

Definition at line 320 of file random.c.

◆ id_minus

#define id_minus   '-'

Definition at line 153 of file random.c.

◆ id_plus

#define id_plus   '+'

Definition at line 154 of file random.c.

◆ LITTLE_ENDIAN

#define LITTLE_ENDIAN   1234

Definition at line 1405 of file random.c.

◆ sip_hash13

#define sip_hash13   ruby_sip_hash13

Definition at line 1397 of file random.c.

◆ SIP_HASH_STREAMING

#define SIP_HASH_STREAMING   0

Definition at line 1396 of file random.c.

◆ SIZEOF_INT32

#define SIZEOF_INT32   (31/CHAR_BIT + 1)

Definition at line 128 of file random.c.

◆ USE_DEV_URANDOM

#define USE_DEV_URANDOM   0

Definition at line 280 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 47 of file random.c.

Function Documentation

◆ Init_Random()

void Init_Random ( void  )

Definition at line 1576 of file random.c.

◆ Init_RandomSeedCore()

void Init_RandomSeedCore ( void  )

Definition at line 1453 of file random.c.

References DEFAULT_SEED_CNT.

◆ InitVM_Random()

void InitVM_Random ( void  )

Definition at line 1530 of file random.c.

References rb_define_global_function().

◆ NO_SANITIZE()

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

◆ NORETURN() [1/2]

NORETURN ( static void   domain_errorvoid)

◆ NORETURN() [2/2]

NORETURN ( static void   invalid_argumentVALUE)

◆ rb_genrand_int32()

unsigned int rb_genrand_int32 ( void  )

Definition at line 115 of file random.c.

◆ rb_genrand_real()

double rb_genrand_real ( void  )

Definition at line 122 of file random.c.

◆ rb_genrand_ulong_limited()

unsigned long rb_genrand_ulong_limited ( unsigned long  limit)

Definition at line 807 of file random.c.

◆ rb_hash_start()

st_index_t rb_hash_start ( st_index_t  h)

Definition at line 1434 of file random.c.

References st_hash_start.

◆ rb_memhash()

st_index_t rb_memhash ( const void ptr,
long  len 
)

Definition at line 1440 of file random.c.

References h, and sip_hash13.

Referenced by rb_dbl_long_hash(), and rb_str_hash().

◆ rb_random_bytes()

VALUE rb_random_bytes ( VALUE  obj,
long  n 
)

Definition at line 1021 of file random.c.

◆ rb_random_int32()

unsigned int rb_random_int32 ( VALUE  obj)

Definition at line 835 of file random.c.

◆ rb_random_real()

double rb_random_real ( VALUE  obj)

Definition at line 870 of file random.c.

◆ rb_random_ulong_limited()

unsigned long rb_random_ulong_limited ( VALUE  obj,
unsigned long  limit 
)

Definition at line 930 of file random.c.

◆ rb_reset_random_seed()

void rb_reset_random_seed ( void  )

Definition at line 1498 of file random.c.

◆ ruby_fill_random_bytes()

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

Definition at line 434 of file random.c.

Variable Documentation

◆ key

Definition at line 1419 of file random.c.

◆ u32

Definition at line 1420 of file random.c.