[PATCH] OS abstract out the random seed and value retrieval
This is pretty crappy on FreeBSD, the seed function doesn't seed the
state we want. But it works, so it'll have to suffice for now...
diff --git a/fio.c b/fio.c
index 1e94cc6..09c960f 100644
--- a/fio.c
+++ b/fio.c
@@ -160,7 +160,7 @@
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 @@
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 @@
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 @@
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;