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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "src/core/transport/byte_stream.h"
#include <stdlib.h>
#include <grpc/support/log.h>
int grpc_byte_stream_next(grpc_exec_ctx *exec_ctx,
grpc_byte_stream *byte_stream, gpr_slice *slice,
size_t max_size_hint, grpc_closure *on_complete) {
return byte_stream->next(exec_ctx, byte_stream, slice, max_size_hint,
on_complete);
}
void grpc_byte_stream_destroy(grpc_byte_stream *byte_stream) {
byte_stream->destroy(byte_stream);
}
/* slice_buffer_stream */
static int slice_buffer_stream_next(grpc_exec_ctx *exec_ctx,
grpc_byte_stream *byte_stream,
gpr_slice *slice, size_t max_size_hint,
grpc_closure *on_complete) {
grpc_slice_buffer_stream *stream = (grpc_slice_buffer_stream *)byte_stream;
GPR_ASSERT(stream->cursor < stream->backing_buffer->count);
*slice = gpr_slice_ref(stream->backing_buffer->slices[stream->cursor]);
stream->cursor++;
return 1;
}
static void slice_buffer_stream_destroy(grpc_byte_stream *byte_stream) {}
void grpc_slice_buffer_stream_init(grpc_slice_buffer_stream *stream,
gpr_slice_buffer *slice_buffer,
gpr_uint32 flags) {
GPR_ASSERT(slice_buffer->length <= GPR_UINT32_MAX);
stream->base.length = (gpr_uint32)slice_buffer->length;
stream->base.flags = flags;
stream->base.next = slice_buffer_stream_next;
stream->base.destroy = slice_buffer_stream_destroy;
stream->backing_buffer = slice_buffer;
stream->cursor = 0;
}
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