X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=lib%2Frand.h;h=6b9e13c03acd77895d1fbe32e2dd88de10cbfa26;hb=068420271828b3b2426ffc3ccf64404cb9d340fb;hp=363e7b6d9651d5970c9b7b8592f61a9bc0a0962b;hpb=7e744013dca36be3840c45d13f4ae09947282bea;p=fio.git

diff --git a/lib/rand.h b/lib/rand.h
index 363e7b6d..6b9e13c0 100644
--- a/lib/rand.h
+++ b/lib/rand.h
@@ -1,12 +1,12 @@
 #ifndef FIO_RAND_H
 #define FIO_RAND_H
 
+#define FRAND_MAX	(-1U)
+
 struct frand_state {
 	unsigned int s1, s2, s3;
 };
 
-extern struct frand_state __fio_rand_state;
-
 static inline unsigned int __rand(struct frand_state *state)
 {
 #define TAUSWORTHE(s,a,b,c,d) ((s&c)<<d) ^ (((s <<a) ^ s)>>b)
@@ -19,5 +19,8 @@ static inline unsigned int __rand(struct frand_state *state)
 }
 
 extern void init_rand(struct frand_state *);
+extern void init_rand_seed(struct frand_state *, unsigned int seed);
+extern void __fill_random_buf(void *buf, unsigned int len, unsigned long seed);
+extern unsigned long fill_random_buf(struct frand_state *, void *buf, unsigned int len);
 
 #endif