1 //
2 //
3 // Copyright 2015 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18
19 #include <grpc/byte_buffer.h>
20 #include <grpc/grpc.h>
21 #include <grpc/impl/compression_types.h>
22 #include <grpc/slice.h>
23 #include <grpc/slice_buffer.h>
24 #include <grpc/support/alloc.h>
25 #include <grpc/support/port_platform.h>
26 #include <stddef.h>
27
28 #include "src/core/lib/iomgr/exec_ctx.h"
29 #include "src/core/lib/slice/slice.h"
30
grpc_raw_byte_buffer_create(grpc_slice * slices,size_t nslices)31 grpc_byte_buffer* grpc_raw_byte_buffer_create(grpc_slice* slices,
32 size_t nslices) {
33 return grpc_raw_compressed_byte_buffer_create(slices, nslices,
34 GRPC_COMPRESS_NONE);
35 }
36
grpc_raw_compressed_byte_buffer_create(grpc_slice * slices,size_t nslices,grpc_compression_algorithm compression)37 grpc_byte_buffer* grpc_raw_compressed_byte_buffer_create(
38 grpc_slice* slices, size_t nslices,
39 grpc_compression_algorithm compression) {
40 size_t i;
41 grpc_byte_buffer* bb =
42 static_cast<grpc_byte_buffer*>(gpr_malloc(sizeof(grpc_byte_buffer)));
43 bb->type = GRPC_BB_RAW;
44 bb->data.raw.compression = compression;
45 grpc_slice_buffer_init(&bb->data.raw.slice_buffer);
46 for (i = 0; i < nslices; i++) {
47 grpc_core::CSliceRef(slices[i]);
48 grpc_slice_buffer_add(&bb->data.raw.slice_buffer, slices[i]);
49 }
50 return bb;
51 }
52
grpc_raw_byte_buffer_from_reader(grpc_byte_buffer_reader * reader)53 grpc_byte_buffer* grpc_raw_byte_buffer_from_reader(
54 grpc_byte_buffer_reader* reader) {
55 grpc_byte_buffer* bb =
56 static_cast<grpc_byte_buffer*>(gpr_malloc(sizeof(grpc_byte_buffer)));
57 grpc_slice slice;
58 bb->type = GRPC_BB_RAW;
59 bb->data.raw.compression = GRPC_COMPRESS_NONE;
60 grpc_slice_buffer_init(&bb->data.raw.slice_buffer);
61
62 while (grpc_byte_buffer_reader_next(reader, &slice)) {
63 grpc_slice_buffer_add(&bb->data.raw.slice_buffer, slice);
64 }
65 return bb;
66 }
67
grpc_byte_buffer_copy(grpc_byte_buffer * bb)68 grpc_byte_buffer* grpc_byte_buffer_copy(grpc_byte_buffer* bb) {
69 switch (bb->type) {
70 case GRPC_BB_RAW:
71 return grpc_raw_compressed_byte_buffer_create(
72 bb->data.raw.slice_buffer.slices, bb->data.raw.slice_buffer.count,
73 bb->data.raw.compression);
74 }
75 GPR_UNREACHABLE_CODE(return nullptr);
76 }
77
grpc_byte_buffer_destroy(grpc_byte_buffer * bb)78 void grpc_byte_buffer_destroy(grpc_byte_buffer* bb) {
79 if (!bb) return;
80 grpc_core::ExecCtx exec_ctx;
81 switch (bb->type) {
82 case GRPC_BB_RAW:
83 grpc_slice_buffer_destroy(&bb->data.raw.slice_buffer);
84 break;
85 }
86 gpr_free(bb);
87 }
88
grpc_byte_buffer_length(grpc_byte_buffer * bb)89 size_t grpc_byte_buffer_length(grpc_byte_buffer* bb) {
90 switch (bb->type) {
91 case GRPC_BB_RAW:
92 return bb->data.raw.slice_buffer.length;
93 }
94 GPR_UNREACHABLE_CODE(return 0);
95 }
96