evrpc_hook_find_meta() can be used to retrieve meta data associated to a
request by a previous hook.
@param ctx the context provided to the hook call
@param key a NUL-terminated c-string
@param data pointer to a data pointer that will contain the retrieved data
@param data_size pointer to the size of the data
@return 0 on success or -1 on failure
retrieves meta data previously associated
evrpc_hook_find_meta() can be used to retrieve meta data associated to a request by a previous hook. @param ctx the context provided to the hook call @param key a NUL-terminated c-string @param data pointer to a data pointer that will contain the retrieved data @param data_size pointer to the size of the data @return 0 on success or -1 on failure