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      1 /* Encoding testcase for callback fields */
      2 
      3 #include <stdio.h>
      4 #include <string.h>
      5 #include <pb_encode.h>
      6 #include "callbacks.pb.h"
      7 #include "test_helpers.h"
      8 
      9 bool encode_string(pb_ostream_t *stream, const pb_field_t *field, void * const *arg)
     10 {
     11     char *str = "Hello world!";
     12 
     13     if (!pb_encode_tag_for_field(stream, field))
     14         return false;
     15 
     16     return pb_encode_string(stream, (uint8_t*)str, strlen(str));
     17 }
     18 
     19 bool encode_int32(pb_ostream_t *stream, const pb_field_t *field, void * const *arg)
     20 {
     21     if (!pb_encode_tag_for_field(stream, field))
     22         return false;
     23 
     24     return pb_encode_varint(stream, 42);
     25 }
     26 
     27 bool encode_fixed32(pb_ostream_t *stream, const pb_field_t *field, void * const *arg)
     28 {
     29     uint32_t value = 42;
     30 
     31     if (!pb_encode_tag_for_field(stream, field))
     32         return false;
     33 
     34     return pb_encode_fixed32(stream, &value);
     35 }
     36 
     37 bool encode_fixed64(pb_ostream_t *stream, const pb_field_t *field, void * const *arg)
     38 {
     39     uint64_t value = 42;
     40 
     41     if (!pb_encode_tag_for_field(stream, field))
     42         return false;
     43 
     44     return pb_encode_fixed64(stream, &value);
     45 }
     46 
     47 bool encode_repeatedstring(pb_ostream_t *stream, const pb_field_t *field, void * const *arg)
     48 {
     49     char *str[4] = {"Hello world!", "", "Test", "Test2"};
     50     int i;
     51 
     52     for (i = 0; i < 4; i++)
     53     {
     54         if (!pb_encode_tag_for_field(stream, field))
     55             return false;
     56 
     57         if (!pb_encode_string(stream, (uint8_t*)str[i], strlen(str[i])))
     58             return false;
     59     }
     60     return true;
     61 }
     62 
     63 int main()
     64 {
     65     uint8_t buffer[1024];
     66     pb_ostream_t stream;
     67     TestMessage testmessage = {{{NULL}}};
     68 
     69     stream = pb_ostream_from_buffer(buffer, 1024);
     70 
     71     testmessage.stringvalue.funcs.encode = &encode_string;
     72     testmessage.int32value.funcs.encode = &encode_int32;
     73     testmessage.fixed32value.funcs.encode = &encode_fixed32;
     74     testmessage.fixed64value.funcs.encode = &encode_fixed64;
     75 
     76     testmessage.has_submsg = true;
     77     testmessage.submsg.stringvalue.funcs.encode = &encode_string;
     78     testmessage.submsg.int32value.funcs.encode = &encode_int32;
     79     testmessage.submsg.fixed32value.funcs.encode = &encode_fixed32;
     80     testmessage.submsg.fixed64value.funcs.encode = &encode_fixed64;
     81 
     82     testmessage.repeatedstring.funcs.encode = &encode_repeatedstring;
     83 
     84     if (!pb_encode(&stream, TestMessage_fields, &testmessage))
     85         return 1;
     86 
     87     SET_BINARY_MODE(stdout);
     88     if (fwrite(buffer, stream.bytes_written, 1, stdout) != 1)
     89         return 2;
     90 
     91     return 0;
     92 }
     93