Function dds_qget_userdata¶
Defined in File dds_public_qos.h
Function Documentation¶
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bool dds_qget_userdata(const dds_qos_t *qos, void **value, size_t *sz)¶
Get the userdata from a qos structure.
- Parameters
qos – [in] - Pointer to a dds_qos_t structure storing the policy
value – [inout] - Pointer that will store the userdata. If sz = 0, then a null pointer, else it is a pointer to an allocated buffer of sz+1 bytes where the last byte is always 0
sz – [inout] - Pointer that will store the size of userdata
- Returns
- false iff any of the arguments is invalid or the qos is not present in the qos object