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 <php.h>
20
21 // The include file must place here under <php.h> for fixing compile error.
22 // See: https://github.com/grpc/grpc/pull/12360#issuecomment-326484589
23 #include "byte_buffer.h"
24
25 #include <grpc/byte_buffer_reader.h>
26
string_to_byte_buffer(char * string,size_t length)27 grpc_byte_buffer *string_to_byte_buffer(char *string, size_t length) {
28 grpc_slice slice = grpc_slice_from_copied_buffer(string, length);
29 grpc_byte_buffer *buffer = grpc_raw_byte_buffer_create(&slice, 1);
30 grpc_slice_unref(slice);
31 return buffer;
32 }
33
34 #if PHP_MAJOR_VERSION < 7
35
byte_buffer_to_string(grpc_byte_buffer * buffer,char ** out_string,size_t * out_length)36 void byte_buffer_to_string(grpc_byte_buffer *buffer, char **out_string,
37 size_t *out_length) {
38 grpc_byte_buffer_reader reader;
39 if (buffer == NULL || !grpc_byte_buffer_reader_init(&reader, buffer)) {
40 /* TODO(dgq): distinguish between the error cases. */
41 *out_string = NULL;
42 *out_length = 0;
43 return;
44 }
45
46 grpc_slice slice = grpc_byte_buffer_reader_readall(&reader);
47 size_t length = GRPC_SLICE_LENGTH(slice);
48 char *string = ecalloc(length + 1, sizeof(char));
49 memcpy(string, GRPC_SLICE_START_PTR(slice), length);
50 grpc_slice_unref(slice);
51
52 *out_string = string;
53 *out_length = length;
54 }
55
56 #else
57
byte_buffer_to_zend_string(grpc_byte_buffer * buffer)58 zend_string* byte_buffer_to_zend_string(grpc_byte_buffer *buffer) {
59 grpc_byte_buffer_reader reader;
60 if (buffer == NULL || !grpc_byte_buffer_reader_init(&reader, buffer)) {
61 /* TODO(dgq): distinguish between the error cases. */
62 return NULL;
63 }
64
65 const size_t length = grpc_byte_buffer_length(reader.buffer_out);
66 zend_string* zstr = zend_string_alloc(length, 0);
67
68 char* buf = ZSTR_VAL(zstr);
69 grpc_slice next;
70 while (grpc_byte_buffer_reader_next(&reader, &next) != 0) {
71 const size_t next_len = GRPC_SLICE_LENGTH(next);
72 memcpy(buf, GRPC_SLICE_START_PTR(next), next_len);
73 buf += next_len;
74 grpc_slice_unref(next);
75 }
76
77 *buf = '\0';
78
79 return zstr;
80 }
81
82 #endif // PHP_MAJOR_VERSION < 7
83