X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=os-linux.h;h=5f0ef8214fcac07a32d629dbaea2fa9a9a209d15;hp=f2df97d3bf2588f7dc1dae447ed27988097a2078;hb=f4866ec5515d8ee329bd904764212489efc8cba2;hpb=32cd46a085ac60f4f8b085e2d65ebfc6100bb8c5

diff --git a/os-linux.h b/os-linux.h
index f2df97d3..5f0ef821 100644
--- a/os-linux.h
+++ b/os-linux.h
@@ -16,10 +16,12 @@
 #define FIO_HAVE_IOPRIO
 #define FIO_HAVE_SPLICE
 #define FIO_HAVE_IOSCHED_SWITCH
+#define FIO_HAVE_ODIRECT
 
 #define OS_MAP_ANON		(MAP_ANONYMOUS)
 
 typedef cpu_set_t os_cpu_mask_t;
+typedef struct drand48_data os_random_state_t;
 
 /*
  * we want fadvise64 really, but it's so tangled... later
@@ -99,4 +101,25 @@ static inline unsigned long long os_phys_mem(void)
 	return (unsigned long long) pages * (unsigned long long) pagesize;
 }
 
+static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
+{
+	srand48_r(seed, rs);
+}
+
+static inline long os_random_long(os_random_state_t *rs)
+{
+	long val;
+
+	lrand48_r(rs, &val);
+	return val;
+}
+
+static inline double os_random_double(os_random_state_t *rs)
+{
+	double val;
+
+	drand48_r(rs, &val);
+	return val;
+}
+
 #endif