initial import

tools/sdk/include/nghttp/nghttp2_rcbuf.h

@@ -0,0 +1,80 @@
+/*
+ * nghttp2 - HTTP/2 C Library
+ *
+ * Copyright (c) 2016 Tatsuhiro Tsujikawa
+ *
+ * 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 NGHTTP2_RCBUF_H
+#define NGHTTP2_RCBUF_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <nghttp2/nghttp2.h>
+
+struct nghttp2_rcbuf {
+  /* custom memory allocator belongs to the mem parameter when
+     creating this object. */
+  void *mem_user_data;
+  nghttp2_free free;
+  /* The pointer to the underlying buffer */
+  uint8_t *base;
+  /* Size of buffer pointed by |base|. */
+  size_t len;
+  /* Reference count */
+  int32_t ref;
+};
+
+/*
+ * Allocates nghttp2_rcbuf object with |size| as initial buffer size.
+ * When the function succeeds, the reference count becomes 1.
+ *
+ * This function returns 0 if it succeeds, or one of the following
+ * negative error codes:
+ *
+ * NGHTTP2_ERR_NOMEM:
+ *     Out of memory.
+ */
+int nghttp2_rcbuf_new(nghttp2_rcbuf **rcbuf_ptr, size_t size, nghttp2_mem *mem);
+
+/*
+ * Like nghttp2_rcbuf_new(), but initializes the buffer with |src| of
+ * length |srclen|.  This function allocates additional byte at the
+ * end and puts '\0' into it, so that the resulting buffer could be
+ * used as NULL-terminated string.  Still (*rcbuf_ptr)->len equals to
+ * |srclen|.
+ *
+ * This function returns 0 if it succeeds, or one of the following
+ * negative error codes:
+ *
+ * NGHTTP2_ERR_NOMEM:
+ *     Out of memory.
+ */
+int nghttp2_rcbuf_new2(nghttp2_rcbuf **rcbuf_ptr, const uint8_t *src,
+                       size_t srclen, nghttp2_mem *mem);
+
+/*
+ * Frees |rcbuf| itself, regardless of its reference cout.
+ */
+void nghttp2_rcbuf_del(nghttp2_rcbuf *rcbuf);
+
+#endif /* NGHTTP2_RCBUF_H */