diff options
| -rw-r--r-- | include/osmocom/core/prim.h | 14 | ||||
| -rw-r--r-- | src/prim.c | 18 |
2 files changed, 32 insertions, 0 deletions
diff --git a/include/osmocom/core/prim.h b/include/osmocom/core/prim.h index 99a71d5d..f04e15e1 100644 --- a/include/osmocom/core/prim.h +++ b/include/osmocom/core/prim.h @@ -57,4 +57,18 @@ osmo_prim_init(struct osmo_prim_hdr *oph, unsigned int sap, /*! \brief primitive handler callback type */ typedef int (*osmo_prim_cb)(struct osmo_prim_hdr *oph, void *ctx); +/*! \brief magic value to be used as final record of \ref + * osmo_prim_event_map */ +#define OSMO_NO_EVENT 0xFFFFFFFF + +/*! \brief single entry in a SAP/PRIM/OP -> EVENT map */ +struct osmo_prim_event_map { + unsigned int sap; /*!< SAP to match */ + unsigned int primitive; /*!< primtiive to match */ + enum osmo_prim_operation operation; /*!< operation to match */ + uint32_t event; /*!< event as result if above match */ +}; + +uint32_t osmo_event_for_prim(const struct osmo_prim_hdr *oph, + const struct osmo_prim_event_map *maps); /*! @} */ @@ -10,3 +10,21 @@ const struct value_string osmo_prim_op_names[5] = { { PRIM_OP_CONFIRM, "confirm" }, { 0, NULL } }; + +/*! \brief resolve the (fsm) event for a given primitive using a map + * \param[in] oph primitive header used as key for match + * \param[in] maps list of mappings from primitive to event + * \returns event determined by map; \ref OSMO_NO_EVENT if no match */ +uint32_t osmo_event_for_prim(const struct osmo_prim_hdr *oph, + const struct osmo_prim_event_map *maps) +{ + const struct osmo_prim_event_map *map; + + for (map = maps; map->event != OSMO_NO_EVENT; map++) { + if (map->sap == oph->sap && + map->primitive == oph->primitive && + map->operation == oph->operation) + return map->event; + } + return OSMO_NO_EVENT; +} |