[PATCH] OS abstract out the random seed and value retrieval

[fio.git] / fio.c

diff --git a/fio.c b/fio.c
index 1e94cc6fe984515cb026e52a0a4d8fd40bfe221e..09c960fd672385219c04cf8557682fa7129554fc 100644 (file)
--- a/fio.c
+++ b/fio.c
@@ -160,7 +160,7 @@ static int get_next_offset(struct thread_data *td, unsigned long long *offset)
                int loops = 50;
 
                do {
-                       lrand48_r(&td->random_state, &r);
+                       r = os_random_long(&td->random_state);
                        b = ((max_blocks - 1) * r / (unsigned long long) (RAND_MAX+1.0));
                        rb = b + (td->file_offset / td->min_bs);
                        loops--;
@@ -188,7 +188,7 @@ static unsigned int get_next_buflen(struct thread_data *td)
        if (td->min_bs == td->max_bs)
                buflen = td->min_bs;
        else {
-               lrand48_r(&td->bsrange_state, &r);
+               r = os_random_long(&td->bsrange_state);
                buflen = (1 + (double) (td->max_bs - 1) * r / (RAND_MAX + 1.0));
                buflen = (buflen + td->min_bs - 1) & ~(td->min_bs - 1);
        }
@@ -250,7 +250,7 @@ static void fill_random_bytes(struct thread_data *td,
        double r;
 
        while (len) {
-               drand48_r(&td->verify_state, &r);
+               r = os_random_double(&td->verify_state);
 
                /*
                 * lrand48_r seems to be broken and only fill the bottom
@@ -363,7 +363,7 @@ static int get_rw_ddir(struct thread_data *td)
                        unsigned long v;
                        long r;
 
-                       lrand48_r(&td->random_state, &r);
+                       r = os_random_long(&td->random_state);
                        v = 100UL * r / (unsigned long) (RAND_MAX + 1.0);
                        if (v < td->rwmixread)
                                td->rwmix_ddir = DDIR_READ;