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/support/port_platform.h>
20
21 #include <stddef.h>
22
23 #include <grpc/byte_buffer.h>
24 #include <grpc/grpc.h>
25 #include <grpc/impl/compression_types.h>
26 #include <grpc/slice.h>
27 #include <grpc/slice_buffer.h>
28 #include <grpc/support/alloc.h>
29
30 #include "src/core/lib/iomgr/exec_ctx.h"
31 #include "src/core/lib/slice/slice.h"
32
grpc_raw_byte_buffer_create(grpc_slice * slices,size_t nslices)33 grpc_byte_buffer* grpc_raw_byte_buffer_create(grpc_slice* slices,
34 size_t nslices) {
35 return grpc_raw_compressed_byte_buffer_create(slices, nslices,
36 GRPC_COMPRESS_NONE);
37 }
38
grpc_raw_compressed_byte_buffer_create(grpc_slice * slices,size_t nslices,grpc_compression_algorithm compression)39 grpc_byte_buffer* grpc_raw_compressed_byte_buffer_create(
40 grpc_slice* slices, size_t nslices,
41 grpc_compression_algorithm compression) {
42 size_t i;
43 grpc_byte_buffer* bb =
44 static_cast<grpc_byte_buffer*>(gpr_malloc(sizeof(grpc_byte_buffer)));
45 bb->type = GRPC_BB_RAW;
46 bb->data.raw.compression = compression;
47 grpc_slice_buffer_init(&bb->data.raw.slice_buffer);
48 for (i = 0; i < nslices; i++) {
49 grpc_core::CSliceRef(slices[i]);
50 grpc_slice_buffer_add(&bb->data.raw.slice_buffer, slices[i]);
51 }
52 return bb;
53 }
54
grpc_raw_byte_buffer_from_reader(grpc_byte_buffer_reader * reader)55 grpc_byte_buffer* grpc_raw_byte_buffer_from_reader(
56 grpc_byte_buffer_reader* reader) {
57 grpc_byte_buffer* bb =
58 static_cast<grpc_byte_buffer*>(gpr_malloc(sizeof(grpc_byte_buffer)));
59 grpc_slice slice;
60 bb->type = GRPC_BB_RAW;
61 bb->data.raw.compression = GRPC_COMPRESS_NONE;
62 grpc_slice_buffer_init(&bb->data.raw.slice_buffer);
63
64 while (grpc_byte_buffer_reader_next(reader, &slice)) {
65 grpc_slice_buffer_add(&bb->data.raw.slice_buffer, slice);
66 }
67 return bb;
68 }
69
grpc_byte_buffer_copy(grpc_byte_buffer * bb)70 grpc_byte_buffer* grpc_byte_buffer_copy(grpc_byte_buffer* bb) {
71 switch (bb->type) {
72 case GRPC_BB_RAW:
73 return grpc_raw_compressed_byte_buffer_create(
74 bb->data.raw.slice_buffer.slices, bb->data.raw.slice_buffer.count,
75 bb->data.raw.compression);
76 }
77 GPR_UNREACHABLE_CODE(return nullptr);
78 }
79
grpc_byte_buffer_destroy(grpc_byte_buffer * bb)80 void grpc_byte_buffer_destroy(grpc_byte_buffer* bb) {
81 if (!bb) return;
82 grpc_core::ExecCtx exec_ctx;
83 switch (bb->type) {
84 case GRPC_BB_RAW:
85 grpc_slice_buffer_destroy(&bb->data.raw.slice_buffer);
86 break;
87 }
88 gpr_free(bb);
89 }
90
grpc_byte_buffer_length(grpc_byte_buffer * bb)91 size_t grpc_byte_buffer_length(grpc_byte_buffer* bb) {
92 switch (bb->type) {
93 case GRPC_BB_RAW:
94 return bb->data.raw.slice_buffer.length;
95 }
96 GPR_UNREACHABLE_CODE(return 0);
97 }
98