1 files changed, 74 insertions, 0 deletions
diff --git a/lib/nghttp3_buf.h b/lib/nghttp3_buf.h
new file mode 100644
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--- /dev/null
+++ b/lib/nghttp3_buf.h
@@ -0,0 +1,74 @@
+/*
+ * nghttp3
+ *
+ * Copyright (c) 2019 nghttp3 contributors
+ * Copyright (c) 2017 ngtcp2 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_BUF_H
+#define NGHTTP3_BUF_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <nghttp3/nghttp3.h>
+
+#include "nghttp3_mem.h"
+
+void nghttp3_buf_wrap_init(nghttp3_buf *buf, uint8_t *src, size_t len);
+
+/*
+ * nghttp3_buf_cap returns the capacity of the buffer.  In other
+ * words, it returns buf->end - buf->begin.
+ */
+size_t nghttp3_buf_cap(const nghttp3_buf *buf);
+
+int nghttp3_buf_reserve(nghttp3_buf *buf, size_t size, const nghttp3_mem *mem);
+
+/*
+ * nghttp3_buf_swap swaps |a| and |b|.
+ */
+void nghttp3_buf_swap(nghttp3_buf *a, nghttp3_buf *b);
+
+typedef enum nghttp3_buf_type {
+  /* NGHTTP3_BUF_TYPE_PRIVATE indicates that memory is allocated for
+     this buffer only and should be freed after its use. */
+  NGHTTP3_BUF_TYPE_PRIVATE,
+  /* NGHTTP3_BUF_TYPE_SHARED indicates that buffer points to shared
+     memory. */
+  NGHTTP3_BUF_TYPE_SHARED,
+  /* NGHTTP3_BUF_TYPE_ALIEN indicates that the buffer points to a
+     memory which comes from outside of the library. */
+  NGHTTP3_BUF_TYPE_ALIEN,
+} nghttp3_buf_type;
+
+typedef struct nghttp3_typed_buf {
+  nghttp3_buf buf;
+  nghttp3_buf_type type;
+} nghttp3_typed_buf;
+
+void nghttp3_typed_buf_init(nghttp3_typed_buf *tbuf, const nghttp3_buf *buf,
+                            nghttp3_buf_type type);
+
+void nghttp3_typed_buf_free(nghttp3_typed_buf *tbuf);
+
+#endif /* NGHTTP3_BUF_H */