#endif
#include <stdint.h>
-#include <stdlib.h>
/**
* Seed the pseudo-random generator.
* value. It may need to be re-seeded by the user with a real random
* value.
*
+ * This function is not multi-thread safe in regards to other
+ * rte_srand() calls, nor is it in relation to concurrent rte_rand()
+ * calls.
+ *
* @param seedval
* The value of the seed.
*/
-static inline void
-rte_srand(uint64_t seedval)
-{
- srand48((long)seedval);
-}
+void
+rte_srand(uint64_t seedval);
/**
* Get a pseudo-random value.
*
- * This function generates pseudo-random numbers using the linear
- * congruential algorithm and 48-bit integer arithmetic, called twice
- * to generate a 64-bit value.
+ * The generator is not cryptographically secure.
+ *
+ * If called from lcore threads, this function is thread-safe.
*
* @return
* A pseudo-random value between 0 and (1<<64)-1.
*/
-static inline uint64_t
-rte_rand(void)
-{
- uint64_t val;
- val = (uint64_t)lrand48();
- val <<= 32;
- val += (uint64_t)lrand48();
- return val;
-}
+uint64_t
+rte_rand(void);
#ifdef __cplusplus
}