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https://github.com/haproxy/haproxy.git
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af3560fa0a
This patch is the first one of the renaming serie, affecting the QUIC MUX module. The objective is to remove older "qmux" naming which was used as a generic identifier. Now it should be restricted to the QMux experimental protocol. A new "qcm" naming will replace the generic usage. The current patch renames the files themselves. Token "qmux" is replaced by the new "qcm" identifier. Makefile and include statements are adjusted as required.
124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
#include <haproxy/qcm_http.h>
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#include <haproxy/api-t.h>
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#include <haproxy/htx.h>
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#include <haproxy/qcm_trace.h>
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/* QUIC MUX rcv_buf operation using HTX data. Received data from stream <qcs>
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* will be transferred as HTX in <buf>. Output buffer is expected to be of
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* length <count>. <fin> will be set to signal the last data to receive on this
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* stream.
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*
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* Return the size in bytes of transferred data.
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*/
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size_t qcs_http_rcv_buf(struct qcs *qcs, struct buffer *buf, size_t count,
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char *fin)
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{
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struct htx *qcs_htx = NULL;
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struct htx *cs_htx = NULL;
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size_t ret = 0;
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TRACE_ENTER(QMUX_EV_STRM_RECV, qcs->qcc->conn, qcs);
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*fin = 0;
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qcs_htx = htx_from_buf(&qcs->rx.app_buf);
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if (htx_is_empty(qcs_htx)) {
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/* Set buffer data to 0 as HTX is empty. */
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htx_to_buf(qcs_htx, &qcs->rx.app_buf);
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goto end;
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}
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ret = qcs_htx->data;
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cs_htx = htx_from_buf(buf);
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if (htx_is_empty(cs_htx) && htx_used_space(qcs_htx) <= count) {
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/* EOM will be copied to cs_htx via b_xfer(). */
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if ((qcs_htx->flags & HTX_FL_EOM) &&
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!(qcs->flags & QC_SF_EOI_SUSPENDED)) {
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*fin = 1;
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}
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htx_to_buf(cs_htx, buf);
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htx_to_buf(qcs_htx, &qcs->rx.app_buf);
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b_xfer(buf, &qcs->rx.app_buf, b_data(&qcs->rx.app_buf));
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goto end;
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}
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htx_xfer(cs_htx, qcs_htx, count, HTX_XFER_DEFAULT);
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BUG_ON(qcs_htx->flags & HTX_FL_PARSING_ERROR);
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/* Copy EOM from src to dst buffer if all data copied. */
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if (htx_is_empty(qcs_htx) && (qcs_htx->flags & HTX_FL_EOM)) {
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cs_htx->flags |= HTX_FL_EOM;
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if (!(qcs->flags & QC_SF_EOI_SUSPENDED))
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*fin = 1;
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}
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htx_to_buf(cs_htx, buf);
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htx_to_buf(qcs_htx, &qcs->rx.app_buf);
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ret -= qcs_htx->data;
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end:
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TRACE_LEAVE(QMUX_EV_STRM_RECV, qcs->qcc->conn, qcs);
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return ret;
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}
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int qcs_http_handle_standalone_fin(struct qcs *qcs)
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{
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struct buffer *appbuf;
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struct htx *htx;
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int eom;
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if (!(appbuf = qcc_get_stream_rxbuf(qcs)))
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goto err;
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htx = htx_from_buf(appbuf);
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eom = htx_set_eom(htx);
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htx_to_buf(htx, appbuf);
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if (!eom)
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goto err;
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return 0;
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err:
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return -1;
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}
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/* QUIC MUX snd_buf operation using HTX data. HTX data will be transferred from
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* <buf> to <qcs> stream buffer. Input buffer is expected to be of length
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* <count>. <fin> will be set to signal the last data to send for this stream.
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*
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* Return the size in bytes of transferred data.
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*/
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size_t qcs_http_snd_buf(struct qcs *qcs, struct buffer *buf, size_t count,
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char *fin)
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{
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size_t ret;
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TRACE_ENTER(QMUX_EV_STRM_SEND, qcs->qcc->conn, qcs);
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ret = qcs->qcc->app_ops->snd_buf(qcs, buf, count, fin);
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TRACE_LEAVE(QMUX_EV_STRM_SEND, qcs->qcc->conn, qcs);
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return ret;
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}
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/* QUIC MUX snd_buf reset. HTX data stored in <buf> of length <count> will be
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* cleared. This can be used when data should not be transmitted any longer.
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*
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* Return the size in bytes of cleared data.
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*/
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size_t qcs_http_reset_buf(struct qcs *qcs, struct buffer *buf, size_t count)
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{
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struct htx *htx;
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TRACE_ENTER(QMUX_EV_STRM_SEND, qcs->qcc->conn, qcs);
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htx = htx_from_buf(buf);
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htx_reset(htx);
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htx_to_buf(htx, buf);
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TRACE_LEAVE(QMUX_EV_STRM_SEND, qcs->qcc->conn, qcs);
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return count;
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}
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