X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fdaemon%2Futils_random.h;h=ff0022ebccb26dfecd796b29e40c14896ce34d1f;hb=48efd3deb4c9139fd060ff3d289896e9031bcc7c;hp=d56bcf6a614ef443f0b5972976821c791557e0ed;hpb=eec0cd9ca51c5c132ed09fc4699c02f3bd12d748;p=collectd.git diff --git a/src/daemon/utils_random.h b/src/daemon/utils_random.h index d56bcf6a..ff0022eb 100644 --- a/src/daemon/utils_random.h +++ b/src/daemon/utils_random.h @@ -24,6 +24,9 @@ * Florian Forster **/ +#ifndef UTILS_RANDOM_H +#define UTILS_RANDOM_H 1 + /** * Returns a random double value in the range [0..1), i.e. excluding 1. * @@ -32,9 +35,19 @@ double cdrand_d(void); /** + * cdrand_u returns a random uint32_t value uniformly distributed in the range + * [0-2^32). + * + * This function is thread- and reentrant-safe. + */ +uint32_t cdrand_u(void); + +/** * Returns a random long between min and max, inclusively. * * If min is larger than max, the result may be rounded incorrectly and may be * outside the intended range. This function is thread- and reentrant-safe. */ long cdrand_range(long min, long max); + +#endif /* !UTILS_RANDOM_H */