On Wed, May 18, 2016 at 9:24 AM, Maxim Uvarov <[email protected]>
wrote:

> Accodring to API return code for fail case is ODP_TIMER_POOL_INVALID
> and errno set event if it's defined to NULL. Also add check on pool
> alloc that input parameter is not invalid.
> https://bugs.linaro.org/show_bug.cgi?id=2139
>
> Signed-off-by: Maxim Uvarov <[email protected]>
> ---
>  v2: added missed ) on if statement. (looks like forgot to git ---ammend
> it )
>
>  platform/linux-generic/odp_timer.c | 24 ++++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/platform/linux-generic/odp_timer.c
> b/platform/linux-generic/odp_timer.c
> index a6d3332..8696074 100644
> --- a/platform/linux-generic/odp_timer.c
> +++ b/platform/linux-generic/odp_timer.c
> @@ -227,16 +227,15 @@ static inline odp_timer_t tp_idx_to_handle(struct
> odp_timer_pool_s *tp,
>  static void itimer_init(odp_timer_pool *tp);
>  static void itimer_fini(odp_timer_pool *tp);
>
> -static odp_timer_pool *odp_timer_pool_new(
> -       const char *_name,
> -       const odp_timer_pool_param_t *param)
> +static odp_timer_pool_t odp_timer_pool_new(const char *_name,
> +                                          const odp_timer_pool_param_t
> *param)
>  {
>         uint32_t tp_idx = odp_atomic_fetch_add_u32(&num_timer_pools, 1);
>         if (odp_unlikely(tp_idx >= MAX_TIMER_POOLS)) {
>                 /* Restore the previous value */
>                 odp_atomic_sub_u32(&num_timer_pools, 1);
>                 __odp_errno = ENFILE; /* Table overflow */
> -               return NULL;
> +               return ODP_TIMER_POOL_INVALID;
>         }
>         size_t sz0 = ODP_ALIGN_ROUNDUP(sizeof(odp_timer_pool),
>                         ODP_CACHE_LINE_SIZE);
> @@ -804,10 +803,9 @@ odp_timer_pool_create(const char *name,
>         /* Verify that we have a valid (non-zero) timer resolution */
>         if (param->res_ns == 0) {
>                 __odp_errno = EINVAL;
> -               return NULL;
> +               return ODP_TIMER_POOL_INVALID;
>         }
> -       odp_timer_pool_t tp = odp_timer_pool_new(name, param);
> -       return tp;
> +       return odp_timer_pool_new(name, param);
>  }
>
>  void odp_timer_pool_start(void)
> @@ -855,15 +853,17 @@ odp_timer_t odp_timer_alloc(odp_timer_pool_t tpid,
>                             odp_queue_t queue,
>                             void *user_ptr)
>  {
> +       odp_timer_t hdl;
> +
> +       if (odp_unlikely(tpid == ODP_TIMER_POOL_INVALID))
> +               ODP_ABORT("Invalid timer pool.\n");
>         if (odp_unlikely(queue == ODP_QUEUE_INVALID))
>                 ODP_ABORT("%s: Invalid queue handle\n", tpid->name);
>

Is an abort here really necessary?  Why not just ODP_DBG() a diagnostic and
return ODP_TIMER_INVALID ?


>         /* We don't care about the validity of user_ptr because we will not
>          * attempt to dereference it */
> -       odp_timer_t hdl = timer_alloc(tpid, queue, user_ptr);
> -       if (odp_likely(hdl != ODP_TIMER_INVALID)) {
> -               /* Success */
> -               return hdl;
> -       }
> +       hdl = timer_alloc(tpid, queue, user_ptr);
> +       if (odp_likely(hdl != ODP_TIMER_INVALID))
> +               return hdl; /* Success */
>         /* errno set by timer_alloc() */
>         return ODP_TIMER_INVALID;
>

This can be simplified to just:

return timer_alloc(tpid, queue, user_ptr);


>  }
> --
> 2.7.1.250.gff4ea60
>
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>
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