Line data    Source code

       1             : /*
       2             :  *
       3             :  * Copyright 2015, Google Inc.
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions are
       8             :  * met:
       9             :  *
      10             :  *     * Redistributions of source code must retain the above copyright
      11             :  * notice, this list of conditions and the following disclaimer.
      12             :  *     * Redistributions in binary form must reproduce the above
      13             :  * copyright notice, this list of conditions and the following disclaimer
      14             :  * in the documentation and/or other materials provided with the
      15             :  * distribution.
      16             :  *     * Neither the name of Google Inc. nor the names of its
      17             :  * contributors may be used to endorse or promote products derived from
      18             :  * this software without specific prior written permission.
      19             :  *
      20             :  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      21             :  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      22             :  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      23             :  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      24             :  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      25             :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      26             :  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      27             :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      28             :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      29             :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      30             :  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      31             :  *
      32             :  */
      33             : 
      34             : #include "src/core/transport/byte_stream.h"
      35             : 
      36             : #include <stdlib.h>
      37             : 
      38             : #include <grpc/support/log.h>
      39             : 
      40     6370293 : int grpc_byte_stream_next(grpc_exec_ctx *exec_ctx,
      41             :                           grpc_byte_stream *byte_stream, gpr_slice *slice,
      42             :                           size_t max_size_hint, grpc_closure *on_complete) {
      43     6370293 :   return byte_stream->next(exec_ctx, byte_stream, slice, max_size_hint,
      44             :                            on_complete);
      45             : }
      46             : 
      47     3957529 : void grpc_byte_stream_destroy(grpc_byte_stream *byte_stream) {
      48     3957529 :   byte_stream->destroy(byte_stream);
      49     3962990 : }
      50             : 
      51             : /* slice_buffer_stream */
      52             : 
      53     2207506 : static int slice_buffer_stream_next(grpc_exec_ctx *exec_ctx,
      54             :                                     grpc_byte_stream *byte_stream,
      55             :                                     gpr_slice *slice, size_t max_size_hint,
      56             :                                     grpc_closure *on_complete) {
      57     2207382 :   grpc_slice_buffer_stream *stream = (grpc_slice_buffer_stream *)byte_stream;
      58     2207506 :   GPR_ASSERT(stream->cursor < stream->backing_buffer->count);
      59     2207506 :   *slice = gpr_slice_ref(stream->backing_buffer->slices[stream->cursor]);
      60     2207883 :   stream->cursor++;
      61     2207883 :   return 1;
      62             : }
      63             : 
      64          67 : static void slice_buffer_stream_destroy(grpc_byte_stream *byte_stream) {}
      65             : 
      66     3961458 : void grpc_slice_buffer_stream_init(grpc_slice_buffer_stream *stream,
      67             :                                    gpr_slice_buffer *slice_buffer,
      68             :                                    gpr_uint32 flags) {
      69     3961458 :   GPR_ASSERT(slice_buffer->length <= GPR_UINT32_MAX);
      70     3961458 :   stream->base.length = (gpr_uint32)slice_buffer->length;
      71     3961458 :   stream->base.flags = flags;
      72     3961458 :   stream->base.next = slice_buffer_stream_next;
      73     3961458 :   stream->base.destroy = slice_buffer_stream_destroy;
      74     3961458 :   stream->backing_buffer = slice_buffer;
      75     3961458 :   stream->cursor = 0;
      76     3961458 : }