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/* Encode a message using oneof fields */
#include <stdio.h>
#include <stdlib.h>
#include <pb_encode.h>
#include "oneof.pb.h"
#include "test_helpers.h"
int main(int argc, char **argv)
{
uint8_t buffer[OneOfMessage_size];
OneOfMessage msg = OneOfMessage_init_zero;
pb_ostream_t stream;
int option;
if (argc != 2)
{
fprintf(stderr, "Usage: encode_oneof [number]\n");
return 1;
}
option = atoi(argv[1]);
/* Prefix and suffix are used to test that the union does not disturb
* other fields in the same message. */
msg.prefix = 123;
/* We encode one of the 'values' fields based on command line argument */
if (option == 1)
{
msg.which_values = OneOfMessage_first_tag;
msg.values.first = 999;
}
else if (option == 2)
{
msg.which_values = OneOfMessage_second_tag;
strcpy(msg.values.second, "abcd");
}
else if (option == 3)
{
msg.which_values = OneOfMessage_third_tag;
msg.values.third.array_count = 5;
msg.values.third.array[0] = 1;
msg.values.third.array[1] = 2;
msg.values.third.array[2] = 3;
msg.values.third.array[3] = 4;
msg.values.third.array[4] = 5;
}
msg.suffix = 321;
stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
if (pb_encode(&stream, OneOfMessage_fields, &msg))
{
SET_BINARY_MODE(stdout);
fwrite(buffer, 1, stream.bytes_written, stdout);
return 0;
}
else
{
fprintf(stderr, "Encoding failed: %s\n", PB_GET_ERROR(&stream));
return 1;
}
}
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