The author of protobuf-c might not read this list. You might want to e-mail
him directly.
But I would suggest looking at the contents of tut.pb-c.c to see whether it
actually defines a_message__pack. Maybe the problem will be obvious.
On Tue, Dec 28, 2010 at 3:08 PM, Suhail Doshi <digitalwarf...@gmail.com>wrote:
> I am using the protobuf-c extension out there.
>
> Getting the following errors:
>
> gcc tut.c tut.pb-c.c -o tut -lprotobuf-c -lprotobuf -lpthread
>
> /tmp/ccBHwTBl.o: In function `main':
> tut.c:(.text+0xab): undefined reference to
> `a_message__get_packed_size'
> tut.c:(.text+0xcc): undefined reference to `a_message__pack'
> collect2: ld returned 1 exit status
>
> tut.c
> ----------------
> #include "tut.pb-
> c.h"
> #include
> <stdio.h>
> #include
> <stdlib.h>
>
> int main(int argc, char **argv)
> {
> AMessage msg =
> AMESSAGE__INIT;
> void
> *buf;
>
> unsigned
> len;
>
> if (argc < 2 || argc > 3)
> {
> fprintf(stderr, "usage: pack a [b]
> \n");
> return
> 1;
> }
>
> msg.a =
> atoi(argv[1]);
> if (argc == 3)
> {
> msg.has_b =
> 1;
> msg.b =
> atoi(argv[2]);
> }
>
> len =
> a_message__get_packed_size(&msg);
> buf =
> malloc(len);
> a_message__pack(&msg,
> buf);
> fwrite(buf, len, 1,
> stdout);
>
> return
> 0;
> }
>
> tut-pb-c.h
> ------------------------------------------
>
> /* Generated by the protocol buffer compiler. DO NOT EDIT! */
>
> #ifndef PROTOBUF_C_tut_2eproto__INCLUDED
> #define PROTOBUF_C_tut_2eproto__INCLUDED
>
> #include <google/protobuf-c/protobuf-c.h>
>
> PROTOBUF_C_BEGIN_DECLS
>
>
> typedef struct _AMessage AMessage;
>
>
> /* --- enums --- */
>
>
> /* --- messages --- */
>
> struct _AMessage
> {
> ProtobufCMessage base;
> int32_t a;
> protobuf_c_boolean has_b;
> int32_t b;
> };
> #define AMESSAGE__INIT \
> { PROTOBUF_C_MESSAGE_INIT (&amessage__descriptor) \
> , 0, 0,0 }
>
>
> /* AMessage methods */
> void amessage__init
> (AMessage *message);
> size_t amessage__get_packed_size
> (const AMessage *message);
> size_t amessage__pack
> (const AMessage *message,
> uint8_t *out);
> size_t amessage__pack_to_buffer
> (const AMessage *message,
> ProtobufCBuffer *buffer);
> AMessage *
> amessage__unpack
> (ProtobufCAllocator *allocator,
> size_t len,
> const uint8_t *data);
> void amessage__free_unpacked
> (AMessage *message,
> ProtobufCAllocator *allocator);
> /* --- per-message closures --- */
>
> typedef void (*AMessage_Closure)
> (const AMessage *message,
> void *closure_data);
>
> /* --- services --- */
>
>
> /* --- descriptors --- */
>
> extern const ProtobufCMessageDescriptor amessage__descriptor;
>
> PROTOBUF_C_END_DECLS
>
>
> #endif /* PROTOBUF_tut_2eproto__INCLUDED */
>
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