/* Encoding testcase for callback fields */ #include <stdio.h> #include <string.h> #include <pb_encode.h> #include "callbacks.pb.h" bool encode_string(pb_ostream_t *stream, const pb_field_t *field, const void *arg) { char *str = "Hello world!"; if (!pb_encode_tag_for_field(stream, field)) return false; return pb_encode_string(stream, (uint8_t*)str, strlen(str)); } int main() { uint8_t buffer[1024]; pb_ostream_t stream = pb_ostream_from_buffer(buffer, 1024); TestMessage testmessage = {}; testmessage.stringvalue.funcs.encode = &encode_string; if (!pb_encode(&stream, TestMessage_fields, &testmessage)) return 1; if (fwrite(buffer, stream.bytes_written, 1, stdout) != 1) return 2; return 0; }