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-rw-r--r--example_unions/Makefile17
-rw-r--r--example_unions/decode.c96
-rw-r--r--example_unions/encode.c85
-rw-r--r--example_unions/unionproto.proto30
4 files changed, 0 insertions, 228 deletions
diff --git a/example_unions/Makefile b/example_unions/Makefile
deleted file mode 100644
index 29514ca9..00000000
--- a/example_unions/Makefile
+++ /dev/null
@@ -1,17 +0,0 @@
-CFLAGS=-ansi -Wall -Werror -I .. -g -O0
-DEPS=../pb_decode.c ../pb_decode.h ../pb_encode.c ../pb_encode.h ../pb.h
-
-all: encode decode
- ./encode 1 | ./decode
- ./encode 2 | ./decode
- ./encode 3 | ./decode
-
-clean:
- rm -f encode unionproto.pb.h unionproto.pb.c
-
-%: %.c $(DEPS) unionproto.pb.h unionproto.pb.c
- $(CC) $(CFLAGS) -o $@ $< ../pb_decode.c ../pb_encode.c unionproto.pb.c
-
-unionproto.pb.h unionproto.pb.c: unionproto.proto ../generator/nanopb_generator.py
- protoc -I. -I../generator -I/usr/include -ounionproto.pb $<
- python ../generator/nanopb_generator.py unionproto.pb
diff --git a/example_unions/decode.c b/example_unions/decode.c
deleted file mode 100644
index b9f4af55..00000000
--- a/example_unions/decode.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* This program reads a message from stdin, detects its type and decodes it.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-#include <pb_decode.h>
-#include "unionproto.pb.h"
-
-/* This function reads manually the first tag from the stream and finds the
- * corresponding message type. It doesn't yet decode the actual message.
- *
- * Returns a pointer to the MsgType_fields array, as an identifier for the
- * message type. Returns null if the tag is of unknown type or an error occurs.
- */
-const pb_field_t* decode_unionmessage_type(pb_istream_t *stream)
-{
- pb_wire_type_t wire_type;
- uint32_t tag;
- bool eof;
-
- while (pb_decode_tag(stream, &wire_type, &tag, &eof))
- {
- if (wire_type == PB_WT_STRING)
- {
- const pb_field_t *field;
- for (field = UnionMessage_fields; field->tag != 0; field++)
- {
- if (field->tag == tag && (field->type & PB_LTYPE_SUBMESSAGE))
- {
- /* Found our field. */
- return field->ptr;
- }
- }
- }
-
- /* Wasn't our field.. */
- pb_skip_field(stream, wire_type);
- }
-
- return NULL;
-}
-
-bool decode_unionmessage_contents(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct)
-{
- pb_istream_t substream;
- bool status;
- if (!pb_make_string_substream(stream, &substream))
- return false;
-
- status = pb_decode(&substream, fields, dest_struct);
- pb_close_string_substream(stream, &substream);
- return status;
-}
-
-int main()
-{
- /* Read the data into buffer */
- uint8_t buffer[512];
- size_t count = fread(buffer, 1, sizeof(buffer), stdin);
- pb_istream_t stream = pb_istream_from_buffer(buffer, count);
-
- const pb_field_t *type = decode_unionmessage_type(&stream);
- bool status = false;
-
- if (type == MsgType1_fields)
- {
- MsgType1 msg = {};
- status = decode_unionmessage_contents(&stream, MsgType1_fields, &msg);
- printf("Got MsgType1: %d\n", msg.value);
- }
- else if (type == MsgType2_fields)
- {
- MsgType2 msg = {};
- status = decode_unionmessage_contents(&stream, MsgType2_fields, &msg);
- printf("Got MsgType2: %s\n", msg.value ? "true" : "false");
- }
- else if (type == MsgType3_fields)
- {
- MsgType3 msg = {};
- status = decode_unionmessage_contents(&stream, MsgType3_fields, &msg);
- printf("Got MsgType3: %d %d\n", msg.value1, msg.value2);
- }
-
- if (!status)
- {
- printf("Decode failed: %s\n", PB_GET_ERROR(&stream));
- return 1;
- }
-
- return 0;
-}
-
-
-
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 */
- }
-}
-
-
diff --git a/example_unions/unionproto.proto b/example_unions/unionproto.proto
deleted file mode 100644
index d7c9de2d..00000000
--- a/example_unions/unionproto.proto
+++ /dev/null
@@ -1,30 +0,0 @@
-// This is an example of how to handle 'union' style messages
-// with nanopb, without allocating memory for all the message types.
-//
-// There is no official type in Protocol Buffers for describing unions,
-// but they are commonly implemented by filling out exactly one of
-// several optional fields.
-
-message MsgType1
-{
- required int32 value = 1;
-}
-
-message MsgType2
-{
- required bool value = 1;
-}
-
-message MsgType3
-{
- required int32 value1 = 1;
- required int32 value2 = 2;
-}
-
-message UnionMessage
-{
- optional MsgType1 msg1 = 1;
- optional MsgType2 msg2 = 2;
- optional MsgType3 msg3 = 3;
-}
-