diff options
Diffstat (limited to 'src/modules/mavlink/mavlink_orb_subscription.h')
| -rw-r--r-- | src/modules/mavlink/mavlink_orb_subscription.h | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/src/modules/mavlink/mavlink_orb_subscription.h b/src/modules/mavlink/mavlink_orb_subscription.h index 5c6543e81..71efb43af 100644 --- a/src/modules/mavlink/mavlink_orb_subscription.h +++ b/src/modules/mavlink/mavlink_orb_subscription.h @@ -48,12 +48,26 @@ class MavlinkOrbSubscription { public: - MavlinkOrbSubscription *next; /*< pointer to next subscription in list */ + MavlinkOrbSubscription *next; ///< pointer to next subscription in list MavlinkOrbSubscription(const orb_id_t topic); ~MavlinkOrbSubscription(); - bool update(const hrt_abstime t); + /** + * Check if subscription updated and get data. + * + * @return true only if topic was updated and data copied to buffer successfully. + * If topic was not updated since last check it will return false but still copy the data. + * If no data available data buffer will be filled with zeroes. + */ + bool update(uint64_t *time, void* data); + + /** + * Copy topic data to given buffer. + * + * @return true only if topic data copied successfully. + */ + bool update(void* data); /** * Check if the topic has been published. @@ -62,16 +76,12 @@ public: * @return true if the topic has been published at least once. */ bool is_published(); - void *get_data(); - const orb_id_t get_topic(); + orb_id_t get_topic() const; private: - const orb_id_t _topic; /*< topic metadata */ - int _fd; /*< subscription handle */ - bool _published; /*< topic was ever published */ - void *_data; /*< pointer to data buffer */ - hrt_abstime _last_check; /*< time of last check */ - bool _updated; /*< updated on last check */ + const orb_id_t _topic; ///< topic metadata + int _fd; ///< subscription handle + bool _published; ///< topic was ever published }; |