diff options
| author | Ola Liljedahl <ola.liljedahl@linaro.org> | 2015-02-04 22:07:23 +0100 |
|---|---|---|
| committer | Maxim Uvarov <maxim.uvarov@linaro.org> | 2015-02-05 16:19:55 +0300 |
| commit | 9208c4039548cf38c3b204094c1781b7e71f9ce3 (patch) | |
| tree | 4f944b3029f1096e919381a7392f584cc448cfcd /include/odp | |
| parent | 73d8c49472a866f761a2d6615d309ff4c129655d (diff) | |
api: odp_cpumask.h: odp_cpumask_to_str() return chars written or error
Add define ODP_CPUMASK_STR_SIZE for minimum output buffer size for
odp_cpumask_to_str().
odp_cpumask_to_str() takes output buffer size as input and returns
number of chars written (on success), <0 on failure.
Updated the implementation.
Updated all usages in example and test programs.
Signed-off-by: Ola Liljedahl <ola.liljedahl@linaro.org>
Reviewed-by: Petri Savolainen <petri.savolainen@linaro.org>
Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Diffstat (limited to 'include/odp')
| -rw-r--r-- | include/odp/api/cpumask.h | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/include/odp/api/cpumask.h b/include/odp/api/cpumask.h index a78d83ccb..7d782c700 100644 --- a/include/odp/api/cpumask.h +++ b/include/odp/api/cpumask.h @@ -18,12 +18,20 @@ extern "C" { #endif +#include <sys/types.h> +#include <odp/config.h> + /** @addtogroup odp_scheduler * CPU mask operations. * @{ */ - /** +/** + * @def ODP_CPUMASK_STR_SIZE + * Minimum size of output buffer for odp_cpumask_to_str() + */ + +/** * Add CPU mask bits from a string * * @param mask CPU mask to modify @@ -33,13 +41,16 @@ extern "C" { void odp_cpumask_from_str(odp_cpumask_t *mask, const char *str); /** - * Write CPU mask as a string of hexadecimal digits + * Format CPU mask as a string of hexadecimal digits + * + * @param mask CPU mask to format + * @param[out] str Output buffer (use ODP_CPUMASK_STR_SIZE) + * @param size Size of output buffer * - * @param mask CPU mask - * @param str String for output - * @param len Size of string length (incl. ending zero) + * @return number of characters written (including terminating null char) + * @retval <0 on failure (buffer too small) */ -void odp_cpumask_to_str(const odp_cpumask_t *mask, char *str, int len); +ssize_t odp_cpumask_to_str(const odp_cpumask_t *mask, char *str, ssize_t size); /** * Clear entire CPU mask |