From: Robbie King <[email protected]> To get the first element in order to be able to traverse a mask.
Signed-off-by: Robbie King <[email protected]> Signed-off-by: Anders Roxell <[email protected]> --- platform/linux-generic/include/api/odp_cpumask.h | 7 +++++++ platform/linux-generic/odp_cpumask.c | 10 ++++++++++ 2 files changed, 17 insertions(+) diff --git a/platform/linux-generic/include/api/odp_cpumask.h b/platform/linux-generic/include/api/odp_cpumask.h index 0090f9a..cccbb62 100644 --- a/platform/linux-generic/include/api/odp_cpumask.h +++ b/platform/linux-generic/include/api/odp_cpumask.h @@ -132,6 +132,13 @@ int odp_cpumask_equal(const odp_cpumask_t *mask1, void odp_cpumask_copy(odp_cpumask_t *dest, const odp_cpumask_t *src); /** + * Find first bit set in mask + * + * @return cpu else -1 if no bits set in cpumask + */ +int odp_cpumask_first(const odp_cpumask_t *mask); + +/** * @} */ diff --git a/platform/linux-generic/odp_cpumask.c b/platform/linux-generic/odp_cpumask.c index 6be7f1e..a3bb176 100644 --- a/platform/linux-generic/odp_cpumask.c +++ b/platform/linux-generic/odp_cpumask.c @@ -175,3 +175,13 @@ void odp_cpumask_copy(odp_cpumask_t *dest, const odp_cpumask_t *src) { memcpy(&dest->set, &src->set, sizeof(src->set)); } + +int odp_cpumask_first(const odp_cpumask_t *mask) +{ + int cpu; + + for (cpu = 0; cpu < CPU_SETSIZE; cpu++) + if (odp_cpumask_isset(mask, cpu)) + return cpu; + return -1; +} -- 2.1.4 _______________________________________________ lng-odp mailing list [email protected] http://lists.linaro.org/mailman/listinfo/lng-odp
