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byte_buffer_queue.h
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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
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24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 */
33
34 #ifndef GRPC_INTERNAL_CORE_SURFACE_BYTE_BUFFER_QUEUE_H
35 #define GRPC_INTERNAL_CORE_SURFACE_BYTE_BUFFER_QUEUE_H
36
37 #include <grpc/byte_buffer.h>
38
39 /* TODO(ctiller): inline an element or two into this struct to avoid per-call
40 allocations */
41 typedef struct {
42 grpc_byte_buffer **data;
43 size_t count;
44 size_t capacity;
45 } grpc_bbq_array;
46
47 /* should be initialized by zeroing memory */
48 typedef struct {
49 size_t drain_pos;
50 grpc_bbq_array filling;
51 grpc_bbq_array draining;
52 size_t bytes;
53 } grpc_byte_buffer_queue;
54
55 void grpc_bbq_destroy(grpc_byte_buffer_queue *q);
56 grpc_byte_buffer *grpc_bbq_pop(grpc_byte_buffer_queue *q);
57 void grpc_bbq_flush(grpc_byte_buffer_queue *q);
58 int grpc_bbq_empty(grpc_byte_buffer_queue *q);
59 void grpc_bbq_push(grpc_byte_buffer_queue *q, grpc_byte_buffer *bb);
60 size_t grpc_bbq_bytes(grpc_byte_buffer_queue *q);
61
62 #endif /* GRPC_INTERNAL_CORE_SURFACE_BYTE_BUFFER_QUEUE_H */
grpc_byte_buffer_queue
Definition: byte_buffer_queue.h:48
grpc_bbq_array::count
size_t count
Definition: byte_buffer_queue.h:43
byte_buffer.h
grpc_byte_buffer_queue::filling
grpc_bbq_array filling
Definition: byte_buffer_queue.h:50
grpc_bbq_push
void grpc_bbq_push(grpc_byte_buffer_queue *q, grpc_byte_buffer *bb)
Definition: byte_buffer_queue.c:64
grpc_bbq_flush
void grpc_bbq_flush(grpc_byte_buffer_queue *q)
Definition: byte_buffer_queue.c:69
grpc_byte_buffer
Definition: byte_buffer.h:49
grpc_bbq_empty
int grpc_bbq_empty(grpc_byte_buffer_queue *q)
Definition: byte_buffer_queue.c:60
grpc_bbq_bytes
size_t grpc_bbq_bytes(grpc_byte_buffer_queue *q)
Definition: byte_buffer_queue.c:76
grpc_bbq_array
Definition: byte_buffer_queue.h:41
grpc_bbq_destroy
void grpc_bbq_destroy(grpc_byte_buffer_queue *q)
Definition: byte_buffer_queue.c:55
grpc_byte_buffer_queue::bytes
size_t bytes
Definition: byte_buffer_queue.h:52
grpc_bbq_array::data
grpc_byte_buffer ** data
Definition: byte_buffer_queue.h:42
grpc_byte_buffer_queue::drain_pos
size_t drain_pos
Definition: byte_buffer_queue.h:49
grpc_bbq_pop
grpc_byte_buffer * grpc_bbq_pop(grpc_byte_buffer_queue *q)
Definition: byte_buffer_queue.c:78
grpc_bbq_array::capacity
size_t capacity
Definition: byte_buffer_queue.h:44
grpc_byte_buffer_queue::draining
grpc_bbq_array draining
Definition: byte_buffer_queue.h:51