Function anjay_lwm2m_gateway_send_batch_add_string

Function Documentation

int anjay_lwm2m_gateway_send_batch_add_string(anjay_send_batch_builder_t *builder, anjay_iid_t gateway_iid, anjay_oid_t oid, anjay_iid_t iid, anjay_rid_t rid, anjay_riid_t riid, avs_time_real_t timestamp, const char *str)

Adds a string to batch builder. This function is intended to be used with LwM2M Gateway End Device objects.

IMPORTANT NOTE: If timestamp is earlier than 1978-07-04 21:24:16 UTC (2**28 seconds since Unix epoch), then it’s assumed to be relative to some arbitrary point in time, and will be encoded as relative to “now”. Otherwise, the time is assumed to be an Unix timestamp, and encoded as time since Unix epoch. See also: RFC 8428, “Requirements and Design Goals”

Parameters:

  • builder – Pointer to batch builder

  • gateway_iid – End Device Instance ID, MUST NOT be UINT16_MAX

  • oid – Object ID, MUST NOT be UINT16_MAX

  • iid – Instance ID, MUST NOT be UINT16_MAX

  • rid – Resource ID, MUST NOT be UINT16_MAX

  • riid – Resource Instance ID, UINT16_MAX for no RIID

  • timestamp – Time related to string being send (e.g. when the measurement corresponding to the passed string was made)

  • str – Pointer to a NULL-terminated string. Must not be NULL. No longer required by batch builder after call to this function, because internal copy is made.

Returns:

0 on success, negative value otherwise. In case of failure, the builder is left unchanged.