1 files changed, 83 insertions, 0 deletions
diff --git a/src/nxt_upstream_source.h b/src/nxt_upstream_source.h
new file mode 100644
index 00000000..706cb5c9
--- /dev/null
+++ b/src/nxt_upstream_source.h
@@ -0,0 +1,83 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#ifndef _NXT_UPSTREAM_SOURCE_H_INCLUDED_
+#define _NXT_UPSTREAM_SOURCE_H_INCLUDED_
+
+
+typedef struct {
+    uint32_t                           hash;
+
+    unsigned                           value_len:23;
+    unsigned                           skip:1;
+    unsigned                           name_len:8;
+
+    u_char                             *value_start;
+    u_char                             *name_start;
+} nxt_name_value_t;
+
+
+typedef struct {
+    nxt_list_t                         *list;
+    nxt_lvlhsh_t                       hash;
+
+    uint16_t                           status;    /* 16 bits */
+
+    nxt_off_t                          content_length;
+} nxt_upstream_header_in_t;
+
+
+typedef nxt_int_t (*nxt_upstream_name_value_handler_t)(
+    nxt_upstream_source_t *us, nxt_name_value_t *nv);
+
+
+typedef struct {
+    nxt_upstream_name_value_handler_t  handler;
+
+    uint8_t                            len;
+    /*
+     * A name is inlined to test it with one memory access.
+     * The struct size is aligned to 32 bytes.
+     */
+#if (NXT_64BIT)
+    u_char                             name[23];
+#else
+    u_char                             name[27];
+#endif
+} nxt_upstream_name_value_t;
+
+
+struct nxt_upstream_source_s {
+    nxt_upstream_peer_t                *peer;
+
+    const nxt_upstream_state_t         *state;
+
+    void                               *protocol_source;
+    void                               *data;
+    nxt_work_queue_t                   *work_queue;
+
+    nxt_buf_pool_t                     buffers;
+
+    nxt_lvlhsh_t                       header_hash;
+    nxt_stream_source_t                *stream;
+};
+
+
+#define NXT_UPSTREAM_NAME_VALUE_MIN_SIZE                                      \
+    offsetof(nxt_http_upstream_header_t, name)
+
+#define nxt_upstream_name_value(s)   sizeof(s) - 1, s
+
+
+NXT_EXPORT nxt_int_t nxt_upstream_header_hash_add(nxt_mem_pool_t *mp,
+    nxt_lvlhsh_t *lh, const nxt_upstream_name_value_t *unv, nxt_uint_t n);
+NXT_EXPORT nxt_int_t nxt_upstream_name_value_ignore(nxt_upstream_source_t *us,
+    nxt_name_value_t *nv);
+
+NXT_EXPORT extern const nxt_lvlhsh_proto_t  nxt_upstream_header_hash_proto;
+
+
+#endif /* _NXT_UPSTREAM_SOURCE_H_INCLUDED_ */