diff options
Diffstat (limited to 'gnuradio-core/src/lib/runtime')
| -rw-r--r-- | gnuradio-core/src/lib/runtime/gr_tag_info.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/runtime/gr_tag_info.h b/gnuradio-core/src/lib/runtime/gr_tag_info.h index 0ba699a0e..5ed30a815 100644 --- a/gnuradio-core/src/lib/runtime/gr_tag_info.h +++ b/gnuradio-core/src/lib/runtime/gr_tag_info.h @@ -40,26 +40,46 @@ namespace gr_tags { extern const pmt::pmt_t key_rssi; extern const pmt::pmt_t key_gain; + /*! + * \brief Returns the item \p tag occurred at (as a uint64_t) + */ static inline uint64_t get_nitems(const pmt::pmt_t &tag) { return pmt::pmt_to_uint64(pmt::pmt_tuple_ref(tag, TAG_NITEM_REF)); } + /*! + * \brief Returns the source ID of \p tag (as a PMT) + */ static inline pmt::pmt_t get_srcid(const pmt::pmt_t &tag) { return pmt::pmt_tuple_ref(tag, TAG_SRCID_REF); } + /*! + * \brief Returns the key of \p tag (as a PMT symbol) + */ static inline pmt::pmt_t get_key(const pmt::pmt_t &tag) { return pmt::pmt_tuple_ref(tag, TAG_KEY_REF); } + /*! + * \brief Returns the value of \p tag (as a PMT) + */ static inline pmt::pmt_t get_value(const pmt::pmt_t &tag) { return pmt::pmt_tuple_ref(tag, TAG_VALUE_REF); } + /*! + * \brief Comparison function to test which tag, \p x or \p y, came first in time + */ + static inline bool + nitems_compare(pmt::pmt_t x, pmt::pmt_t y) { + return get_nitems(x) < get_nitems(y); + } + }; /* namespace tags */ #endif /* GR_TAG_INFO */ |