/* 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, void * const *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)); } bool encode_int32(pb_ostream_t *stream, const pb_field_t *field, void * const *arg) { if (!pb_encode_tag_for_field(stream, field)) return false; return pb_encode_varint(stream, 42); } bool encode_fixed32(pb_ostream_t *stream, const pb_field_t *field, void * const *arg) { if (!pb_encode_tag_for_field(stream, field)) return false; uint32_t value = 42; return pb_encode_fixed32(stream, &value); } bool encode_fixed64(pb_ostream_t *stream, const pb_field_t *field, void * const *arg) { if (!pb_encode_tag_for_field(stream, field)) return false; uint64_t value = 42; return pb_encode_fixed64(stream, &value); } bool encode_repeatedstring(pb_ostream_t *stream, const pb_field_t *field, void * const *arg) { char *str[4] = {"Hello world!", "", "Test", "Test2"}; int i; for (i = 0; i < 4; i++) { if (!pb_encode_tag_for_field(stream, field)) return false; if (!pb_encode_string(stream, (uint8_t*)str[i], strlen(str[i]))) return false; } return true; } int main() { uint8_t buffer[1024]; pb_ostream_t stream = pb_ostream_from_buffer(buffer, 1024); TestMessage testmessage = {}; testmessage.stringvalue.funcs.encode = &encode_string; testmessage.int32value.funcs.encode = &encode_int32; testmessage.fixed32value.funcs.encode = &encode_fixed32; testmessage.fixed64value.funcs.encode = &encode_fixed64; testmessage.has_submsg = true; testmessage.submsg.stringvalue.funcs.encode = &encode_string; testmessage.submsg.int32value.funcs.encode = &encode_int32; testmessage.submsg.fixed32value.funcs.encode = &encode_fixed32; testmessage.submsg.fixed64value.funcs.encode = &encode_fixed64; testmessage.repeatedstring.funcs.encode = &encode_repeatedstring; if (!pb_encode(&stream, TestMessage_fields, &testmessage)) return 1; if (fwrite(buffer, stream.bytes_written, 1, stdout) != 1) return 2; return 0; }