Random distribution 32-bit fixes

[fio.git] / lib / zipf.c

diff --git a/lib/zipf.c b/lib/zipf.c
index 1ff8568094dcecc34ad8350b9f364051de756dd5..321a4fb9645e8995e1145758ec75530aeea75a16 100644 (file)
--- a/lib/zipf.c
+++ b/lib/zipf.c
@@ -8,7 +8,7 @@
 
 static void zipf_update(struct zipf_state *zs)
 {
-       unsigned long to_gen;
+       uint64_t to_gen;
        unsigned int i;
 
        /*
@@ -22,7 +22,7 @@ static void zipf_update(struct zipf_state *zs)
                zs->zetan += pow(1.0 / (double) (i + 1), zs->theta);
 }
 
-static void shared_rand_init(struct zipf_state *zs, unsigned long nranges,
+static void shared_rand_init(struct zipf_state *zs, uint64_t nranges,
                             unsigned int seed)
 {
        memset(zs, 0, sizeof(*zs));
@@ -32,7 +32,7 @@ static void shared_rand_init(struct zipf_state *zs, unsigned long nranges,
        zs->rand_off = __rand(&zs->rand);
 }
 
-void zipf_init(struct zipf_state *zs, unsigned long nranges, double theta,
+void zipf_init(struct zipf_state *zs, uint64_t nranges, double theta,
               unsigned int seed)
 {
        shared_rand_init(zs, nranges, seed);
@@ -43,7 +43,7 @@ void zipf_init(struct zipf_state *zs, unsigned long nranges, double theta,
        zipf_update(zs);
 }
 
-unsigned long long zipf_next(struct zipf_state *zs)
+uint64_t zipf_next(struct zipf_state *zs)
 {
        double alpha, eta, rand_uni, rand_z;
        unsigned long long n = zs->nranges;
@@ -70,14 +70,14 @@ unsigned long long zipf_next(struct zipf_state *zs)
        return (val + zs->rand_off) % zs->nranges;
 }
 
-void pareto_init(struct zipf_state *zs, unsigned long nranges, double h,
+void pareto_init(struct zipf_state *zs, uint64_t nranges, double h,
                 unsigned int seed)
 {
        shared_rand_init(zs, nranges, seed);
        zs->pareto_pow = log(h) / log(1.0 - h);
 }
 
-unsigned long long pareto_next(struct zipf_state *zs)
+uint64_t pareto_next(struct zipf_state *zs)
 {
        double rand = (double) __rand(&zs->rand) / (double) FRAND32_MAX;
        unsigned long long n;