diff options
Diffstat (limited to 'testing/sgh_dd.cpp')
| -rw-r--r-- | testing/sgh_dd.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/testing/sgh_dd.cpp b/testing/sgh_dd.cpp index 483dfce2..bc98de43 100644 --- a/testing/sgh_dd.cpp +++ b/testing/sgh_dd.cpp @@ -36,7 +36,7 @@ * renamed [20181221] */ -static const char * version_str = "2.15 20210816"; +static const char * version_str = "2.16 20210906"; #define _XOPEN_SOURCE 600 #ifndef _GNU_SOURCE @@ -317,6 +317,9 @@ typedef struct request_element uint32_t in_mrq_q_blks; uint32_t out_mrq_q_blks; long seed; +#ifdef HAVE_SRAND48_R /* gcc extension. N.B. non-reentrant version slower */ + struct drand48_data drand;/* opaque, used by srand48_r and mrand48_r */ +#endif pthread_t mrq_abort_thread_id; Mrq_abort_info mai; } Rq_elem; @@ -1536,7 +1539,11 @@ read_write_thread(void * v_tip) #endif if (vb > 1) pr2serr_lk("thread=%d: seed=%ld\n", rep->id, rep->seed); +#ifdef HAVE_SRAND48_R + srand48_r(rep->seed, &rep->drand); +#else srand48(rep->seed); +#endif } if (clp->in_flags.same_fds || clp->out_flags.same_fds) ; @@ -1857,7 +1864,11 @@ normal_in_rd(Rq_elem * rep, int blocks) for (k = 0, bp = rep->buffp; k < blocks; ++k, bp += clp->bs) { for (j = 0; j < clp->bs; j += jbump) { /* mrand48 takes uniformly from [-2^31, 2^31) */ +#ifdef HAVE_SRAND48_R + mrand48_r(&rep->drand, &rn); +#else rn = mrand48(); +#endif *((uint32_t *)(bp + j)) = (uint32_t)rn; } } |