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885e4c5cf8
This patch extends qc_stream_desc API to be able to allocate small buffers. QUIC MUX API is similarly updated as ultimatly each application protocol is responsible to choose between a default or a smaller buffer. Internally, the type of allocated buffer is remembered via qc_stream_buf instance. This is mandatory to ensure that the buffer is released in the correct pool, in particular as small and standard buffers can be configured with the same size. This commit is purely an API change. For the moment, small buffers are not used. This will changed in a dedicated patch.
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
#ifndef _HAPROXY_QUIC_STREAM_T_H_
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#define _HAPROXY_QUIC_STREAM_T_H_
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#ifdef USE_QUIC
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#include <import/ebtree-t.h>
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#include <haproxy/buf-t.h>
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#include <haproxy/list-t.h>
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/* A QUIC STREAM buffer used for Tx.
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*
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* Currently, no offset is associated with an offset. The qc_stream_desc must
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* store them in order and keep the offset of the oldest buffer. The buffers
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* can be freed in strict order.
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*/
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struct qc_stream_buf {
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struct buffer buf; /* STREAM payload */
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struct list list; /* element for qc_stream_desc list */
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int sbuf;
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};
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#define QC_SD_FL_RELEASE 0x00000001 /* set when MUX has finished to use this stream */
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#define QC_SD_FL_WAIT_FOR_FIN 0x00000002 /* set if sent FIN is waiting for acknowledgement */
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#define QC_SD_FL_OOB_BUF 0x00000004 /* buffers not accounted against conn limit */
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/* QUIC STREAM descriptor.
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*
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* This structure is the low-level counterpart of the QUIC STREAM at the MUX
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* layer. It is stored in the quic-conn and provides facility for Tx buffering.
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*
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* Once the MUX has finished to transfer data on a STREAM, it must release its
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* QUIC STREAM descriptor. The descriptor will be kept by the quic_conn until
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* all acknowledgement has been received.
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*/
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struct qc_stream_desc {
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struct eb64_node by_id; /* node for quic_conn tree */
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struct quic_conn *qc;
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struct list buf_list; /* buffers waiting for ACK, oldest offset first */
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struct qc_stream_buf *buf; /* current buffer used by the MUX */
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uint64_t buf_offset; /* base offset of current buffer */
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uint64_t ack_offset; /* last acknowledged offset */
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struct eb_root acked_frms; /* ACK frames tree for non-contiguous ACK ranges */
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int flags; /* QC_SD_FL_* values */
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void *ctx; /* MUX specific context */
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};
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#endif /* USE_QUIC */
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#endif /* _HAPROXY_QUIC_STREAM_T_H_ */
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