On Aug 3, 2010, at 16:44 , Julian González wrote:
I used the approach you mentioned and it worked. I just have a
problem I am writing 10,000 little messages in a file, first I write
the size of the message and then the message as it follows:
codedOutput->WriteVarint32(sample.ByteSize());
res = sample.SerializeToCodedStream(codedOutput);
The problem is that when I try to read the 10,000 messages I just
wrote I just can read 9984 messages, when I try to read the 9885 an
error is thrown:
libprotobuf ERROR c:\active\protobuf-2.3.0\src\google\protobuf
\message_lite.cc:1
23] Can't parse message of type "apm.Sample" because it is missing
required fiel
ds: timestamp
what is happening? It looks like only 9886 messages were written
into the file, why the last 16 messages were not written?
It shouldn't be happening. Since the sender checks that all required
fields are present, this indicates that some mismatch is occurring
between the serialization and deserialization code. Are you sure the
data that is being sent is exactly the same as the data being
received? Normally these errors occur because the data is being
truncated or changed in transit somehow (eg. truncating at a null
byte? truncating at some buffer limit?).
The other thing that could be happening is that you could be mis-
parsing the earlier messages. To parse multiple messages from a
stream, you need to limit the number of bytes read (eg. using
CodedInputStream::PushLimit, or MessageLite::
ParseFromBoundedZeroCopyStream).
Good luck,
Evan
--
Evan Jones
http://evanjones.ca/
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