diff options
Diffstat (limited to 'example_unions/encode.c')
-rw-r--r-- | example_unions/encode.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/example_unions/encode.c b/example_unions/encode.c deleted file mode 100644 index e124bf91..00000000 --- a/example_unions/encode.c +++ /dev/null @@ -1,85 +0,0 @@ -/* This program takes a command line argument and encodes a message in - * one of MsgType1, MsgType2 or MsgType3. - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> - -#include <pb_encode.h> -#include "unionproto.pb.h" - -/* This function is the core of the union encoding process. It handles - * the top-level pb_field_t array manually, in order to encode a correct - * field tag before the message. The pointer to MsgType_fields array is - * used as an unique identifier for the message type. - */ -bool encode_unionmessage(pb_ostream_t *stream, const pb_field_t messagetype[], const void *message) -{ - const pb_field_t *field; - for (field = UnionMessage_fields; field->tag != 0; field++) - { - if (field->ptr == messagetype) - { - /* This is our field, encode the message using it. */ - if (!pb_encode_tag_for_field(stream, field)) - return false; - - return pb_encode_submessage(stream, messagetype, message); - } - } - - /* Didn't find the field for messagetype */ - return false; -} - -int main(int argc, char **argv) -{ - if (argc != 2) - { - fprintf(stderr, "Usage: %s (1|2|3)\n", argv[0]); - return 1; - } - - uint8_t buffer[512]; - pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer)); - - bool status = false; - int msgtype = atoi(argv[1]); - if (msgtype == 1) - { - /* Send message of type 1 */ - MsgType1 msg = {42}; - status = encode_unionmessage(&stream, MsgType1_fields, &msg); - } - else if (msgtype == 2) - { - /* Send message of type 2 */ - MsgType2 msg = {true}; - status = encode_unionmessage(&stream, MsgType2_fields, &msg); - } - else if (msgtype == 3) - { - /* Send message of type 3 */ - MsgType3 msg = {3, 1415}; - status = encode_unionmessage(&stream, MsgType3_fields, &msg); - } - else - { - fprintf(stderr, "Unknown message type: %d\n", msgtype); - return 2; - } - - if (!status) - { - fprintf(stderr, "Encoding failed!\n"); - return 3; - } - else - { - fwrite(buffer, 1, stream.bytes_written, stdout); - return 0; /* Success */ - } -} - - |