NAME

       TSHttpTxnClientStreamPriorityGet - TSHttpTxnClientStreamPriorityGet API function

SYNOPSIS

          #include <ts/ts.h>

       TSReturnCode TSHttpTxnClientStreamPriorityGet(TSHttpTxn txnp, TSHttpPriority *priority)

DESCRIPTION

       Retrieve  the  priority  information  for  the  HTTP  stream  associated with the provided
       transaction.  The resultant priority information  is  populated  in  the  priority  output
       variable.  The TSHttpPriority type is designed to be agnostic of the various HTTP protocol
       versions  that  support  HTTP  streams.  The  user  should  pass  a  pointer   casted   to
       TSHttpPriority   from  a  previously  allocated  TSHttp2Priority  structure.  This  design
       anticipates future support for HTTP versions that support streams, such as HTTP/3.

       The TSHttp2Priority structure has the following declaration:

          typedef struct {
            uint8_t priority_type; /** HTTP_PROTOCOL_TYPE_HTTP_2 */
            int32_t stream_dependency;
            uint8_t weight;
          } TSHttp2Priority;

       In a call to TSHttpTxnClientStreamPriorityGet, the dependency and weight will be populated
       in  the stream_dependency and weight members, respectively.  If the stream associated with
       the given transaction has no dependency, then the stream_dependency output parameter  will
       be populated with -1 and the value of weight will be meaningless. See RFC 7540 section 5.3
       for details concerning HTTP/2 stream priority.

       This API returns an error if the provided transaction is not an HTTP/2 transaction.

SEE ALSO

       TSHttpTxnClientStreamIdGet

COPYRIGHT

       2022, dev@trafficserver.apache.org