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 
byte_buffer_to_zend_string(grpc_byte_buffer * buffer)34 zend_string* byte_buffer_to_zend_string(grpc_byte_buffer *buffer) {
35   grpc_byte_buffer_reader reader;
36   if (buffer == NULL || !grpc_byte_buffer_reader_init(&reader, buffer)) {
37     /* TODO(dgq): distinguish between the error cases. */
38     return NULL;
39   }
40 
41   const size_t length = grpc_byte_buffer_length(reader.buffer_out);
42   zend_string* zstr = zend_string_alloc(length, 0);
43 
44   char* buf = ZSTR_VAL(zstr);
45   grpc_slice next;
46   while (grpc_byte_buffer_reader_next(&reader, &next) != 0) {
47     const size_t next_len = GRPC_SLICE_LENGTH(next);
48     memcpy(buf, GRPC_SLICE_START_PTR(next), next_len);
49     buf += next_len;
50     grpc_slice_unref(next);
51   }
52 
53   *buf = '\0';
54 
55   return zstr;
56 }
57