Add buffer_compress_percentage

[fio.git] / lib / rand.h

diff --git a/lib/rand.h b/lib/rand.h
index 573116cbc2f7ec097bda77d97a3a0d669d30558f..d62ebe5f7ecb95005561c5021df45ab92a06a1d1 100644 (file)
--- 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)
@@ -19,6 +19,9 @@ static inline unsigned int __rand(struct frand_state *state)
 }
 
 extern void init_rand(struct frand_state *);
-extern void fill_random_buf(void *buf, unsigned int len);
+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);
+extern unsigned long fill_random_buf_percentage(struct frand_state *, void *buf, unsigned int percentage, unsigned int segment, unsigned int len);
 
 #endif