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Modules API: RM_GetRandomBytes() / GetRandomHexChars().

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This commit is contained in:
antirez
2018-04-05 13:24:22 +02:00
parent c75582889a
commit b2868c7b9c
4 changed files with 69 additions and 58 deletions
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21
src/module.c
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@ -4183,6 +4183,25 @@ int RM_GetTimerInfo(RedisModuleCtx *ctx, RedisModuleTimerID id, uint64_t *remain
return REDISMODULE_OK;
}
/* --------------------------------------------------------------------------
* Modules utility APIs
* -------------------------------------------------------------------------- */
/* Return random bytes using SHA1 in counter mode with a /dev/urandom
* initialized seed. This function is fast so can be used to generate
* many bytes without any effect on the operating system entropy pool.
* Currently this function is not thread safe. */
void RM_GetRandomBytes(unsigned char *dst, size_t len) {
getRandomBytes(dst,len);
}
/* Like RedisModule_GetRandomBytes() but instead of setting the string to
* random bytes the string is set to random characters in the in the
* hex charset [0-9a-f]. */
void RM_GetRandomHexChars(char *dst, size_t len) {
getRandomHexChars(dst,len);
}
/* --------------------------------------------------------------------------
* Modules API internals
* -------------------------------------------------------------------------- */
@ -4575,4 +4594,6 @@ void moduleRegisterCoreAPI(void) {
REGISTER_API(GetTimerInfo);
REGISTER_API(GetMyClusterID);
REGISTER_API(GetClusterSize);
REGISTER_API(GetRandomBytes);
REGISTER_API(GetRandomHexChars);
}