Adding upstream version 0.8.0.upstream/0.8.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 200 insertions, 0 deletions

diff --git a/lib/nghttp3_conn.h b/lib/nghttp3_conn.h
new file mode 100644
index 0000000..a3f904c
--- /dev/null
+++ b/lib/nghttp3_conn.h
@@ -0,0 +1,200 @@
+/*
+ * nghttp3
+ *
+ * Copyright (c) 2019 nghttp3 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef NGHTTP3_CONN_H
+#define NGHTTP3_CONN_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <nghttp3/nghttp3.h>
+
+#include "nghttp3_stream.h"
+#include "nghttp3_map.h"
+#include "nghttp3_qpack.h"
+#include "nghttp3_tnode.h"
+#include "nghttp3_idtr.h"
+#include "nghttp3_gaptr.h"
+
+#define NGHTTP3_VARINT_MAX ((1ull << 62) - 1)
+
+/* NGHTTP3_QPACK_ENCODER_MAX_TABLE_CAPACITY is the maximum dynamic
+   table size for QPACK encoder. */
+#define NGHTTP3_QPACK_ENCODER_MAX_TABLE_CAPACITY 16384
+
+/* NGHTTP3_QPACK_ENCODER_MAX_BLOCK_STREAMS is the maximum number of
+   blocked streams for QPACK encoder. */
+#define NGHTTP3_QPACK_ENCODER_MAX_BLOCK_STREAMS 100
+
+/* NGHTTP3_CONN_FLAG_NONE indicates that no flag is set. */
+#define NGHTTP3_CONN_FLAG_NONE 0x0000u
+/* NGHTTP3_CONN_FLAG_SETTINGS_RECVED is set when SETTINGS frame has
+   been received. */
+#define NGHTTP3_CONN_FLAG_SETTINGS_RECVED 0x0001u
+/* NGHTTP3_CONN_FLAG_CONTROL_OPENED is set when a control stream has
+   opened. */
+#define NGHTTP3_CONN_FLAG_CONTROL_OPENED 0x0002u
+/* NGHTTP3_CONN_FLAG_QPACK_ENCODER_OPENED is set when a QPACK encoder
+   stream has opened. */
+#define NGHTTP3_CONN_FLAG_QPACK_ENCODER_OPENED 0x0004u
+/* NGHTTP3_CONN_FLAG_QPACK_DECODER_OPENED is set when a QPACK decoder
+   stream has opened. */
+#define NGHTTP3_CONN_FLAG_QPACK_DECODER_OPENED 0x0008u
+/* NGHTTP3_CONN_FLAG_GOAWAY_RECVED indicates that GOAWAY frame has
+   received. */
+#define NGHTTP3_CONN_FLAG_GOAWAY_RECVED 0x0020u
+/* NGHTTP3_CONN_FLAG_GOAWAY_QUEUED indicates that GOAWAY frame has
+   been submitted for transmission. */
+#define NGHTTP3_CONN_FLAG_GOAWAY_QUEUED 0x0040u
+
+typedef struct nghttp3_chunk {
+  nghttp3_opl_entry oplent;
+} nghttp3_chunk;
+
+nghttp3_objalloc_def(chunk, nghttp3_chunk, oplent);
+
+struct nghttp3_conn {
+  nghttp3_objalloc out_chunk_objalloc;
+  nghttp3_objalloc stream_objalloc;
+  nghttp3_callbacks callbacks;
+  nghttp3_map streams;
+  nghttp3_qpack_decoder qdec;
+  nghttp3_qpack_encoder qenc;
+  nghttp3_pq qpack_blocked_streams;
+  struct {
+    nghttp3_pq spq;
+  } sched[NGHTTP3_URGENCY_LEVELS];
+  const nghttp3_mem *mem;
+  void *user_data;
+  int server;
+  uint16_t flags;
+
+  struct {
+    nghttp3_settings settings;
+    struct {
+      /* max_pushes is the number of push IDs that local endpoint can
+         issue.  This field is used by server only and used just for
+         validation */
+      uint64_t max_pushes;
+    } uni;
+  } local;
+
+  struct {
+    struct {
+      nghttp3_idtr idtr;
+      /* max_client_streams is the cumulative number of client
+         initiated bidirectional stream ID the remote endpoint can
+         issue.  This field is used on server side only. */
+      uint64_t max_client_streams;
+    } bidi;
+    nghttp3_settings settings;
+  } remote;
+
+  struct {
+    /* goaway_id is the latest ID received in GOAWAY frame. */
+    int64_t goaway_id;
+
+    int64_t max_stream_id_bidi;
+
+    /* pri_fieldbuf is a buffer to store incoming Priority Field Value
+       in PRIORITY_UPDATE frame. */
+    uint8_t pri_fieldbuf[8];
+    /* pri_fieldlen is the number of bytes written into
+       pri_fieldbuf. */
+    size_t pri_fieldbuflen;
+  } rx;
+
+  struct {
+    struct {
+      nghttp3_buf rbuf;
+      nghttp3_buf ebuf;
+    } qpack;
+    nghttp3_stream *ctrl;
+    nghttp3_stream *qenc;
+    nghttp3_stream *qdec;
+    /* goaway_id is the latest ID sent in GOAWAY frame. */
+    int64_t goaway_id;
+  } tx;
+};
+
+nghttp3_stream *nghttp3_conn_find_stream(nghttp3_conn *conn, int64_t stream_id);
+
+int nghttp3_conn_create_stream(nghttp3_conn *conn, nghttp3_stream **pstream,
+                               int64_t stream_id);
+
+nghttp3_ssize nghttp3_conn_read_bidi(nghttp3_conn *conn, size_t *pnproc,
+                                     nghttp3_stream *stream, const uint8_t *src,
+                                     size_t srclen, int fin);
+
+nghttp3_ssize nghttp3_conn_read_uni(nghttp3_conn *conn, nghttp3_stream *stream,
+                                    const uint8_t *src, size_t srclen, int fin);
+
+nghttp3_ssize nghttp3_conn_read_control(nghttp3_conn *conn,
+                                        nghttp3_stream *stream,
+                                        const uint8_t *src, size_t srclen);
+
+nghttp3_ssize nghttp3_conn_read_qpack_encoder(nghttp3_conn *conn,
+                                              const uint8_t *src,
+                                              size_t srclen);
+
+nghttp3_ssize nghttp3_conn_read_qpack_decoder(nghttp3_conn *conn,
+                                              const uint8_t *src,
+                                              size_t srclen);
+
+int nghttp3_conn_on_data(nghttp3_conn *conn, nghttp3_stream *stream,
+                         const uint8_t *data, size_t datalen);
+
+int nghttp3_conn_on_priority_update(nghttp3_conn *conn,
+                                    const nghttp3_frame_priority_update *fr);
+
+nghttp3_ssize nghttp3_conn_on_headers(nghttp3_conn *conn,
+                                      nghttp3_stream *stream,
+                                      const uint8_t *data, size_t datalen,
+                                      int fin);
+
+int nghttp3_conn_on_settings_entry_received(nghttp3_conn *conn,
+                                            const nghttp3_frame_settings *fr);
+
+int nghttp3_conn_qpack_blocked_streams_push(nghttp3_conn *conn,
+                                            nghttp3_stream *stream);
+
+void nghttp3_conn_qpack_blocked_streams_pop(nghttp3_conn *conn);
+
+int nghttp3_conn_schedule_stream(nghttp3_conn *conn, nghttp3_stream *stream);
+
+int nghttp3_conn_ensure_stream_scheduled(nghttp3_conn *conn,
+                                         nghttp3_stream *stream);
+
+void nghttp3_conn_unschedule_stream(nghttp3_conn *conn, nghttp3_stream *stream);
+
+int nghttp3_conn_reject_stream(nghttp3_conn *conn, nghttp3_stream *stream);
+
+/*
+ * nghttp3_conn_get_next_tx_stream returns next stream to send.  It
+ * returns NULL if there is no such stream.
+ */
+nghttp3_stream *nghttp3_conn_get_next_tx_stream(nghttp3_conn *conn);
+
+#endif /* NGHTTP3_CONN_H */