Wes Parish wrote:
Correct me if I am wrong, but unless you serialize the data better than that,
it will not be portable between different hardware platforms (i.e. 32bit vs
64bit, x86 vs PPC vs Sun, etc...). This gets into more than just endianization
(which is also handled by the buffer class).
You're correct, the binary data needs to be encoded in a form that can be
understood by the message recipients. Qpid is neutral as to encodings. You can
use qpid::framing::Buffer if it suits your needs (discussed elsewhere on this
thread) or you can use any other encoding that suits your application.
-----Original Message-----
From: Alan Conway [mailto:acon...@redhat.com]
Sent: Fri 5/22/2009 7:41 AM
To: users@qpid.apache.org
Subject: Re: Binary Data Transfer
Wes Parish wrote:
Is the Qpid C++ Client API capable of transferring binary data? It seems like the only data type in qpid/client/Message.h is the std::string (data field of TransferContent.h).
I am interested in transferring segments of binary data, and not ascii strings.
Is this possible with the current Qpid C++ API implementation? I have not
researched the AMQP protocol much yet, but had assumed this would be possible
with the wire protocol. If it is not currently implemented, but it is
possible, would it be as simple as overridding the TransferContent and Message
classes and working backwards from there?
std::string in C++ is simply a string of bytes, which can include 0 bytes. So
you can transfer binary data in a std::string like this:
char* p = start_of_data;
size_t len = length_of_data;
std::string s(p, len); // contains a copy of data.
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