Alright, some code incoming..be warned
This is code which creates the file, I'll only paste the important parts
<code>
void WriteEntriesToFile(const string& path, .....other params here......)
{
ofstream* stream = new ofstream(path.c_str(), ios::out | ios::binary);
//.... check for stream validity here......
OFStreamWriter* writer = new OFStreamWriter(stream); // my own class
which is a copy of OStreamOutputStream
::google::protobuf::io::CodedOutputStream* codedOut = new ::google::
protobuf::io::CodedOutputStream(writer);
// Create new header
HeaderPB* headerPB = new HeaderPB();
unsigned int byteOffset = 0;
HeaderPB::EntryPB* entryPB = NULL;
// .... begin looping over instances of "MyMessage" to write to the file
{
entryPB = headerPB->add_resource_entry();
entryPB->set_resource_size_bytes(myMessagePB->ByteSize());
entryPB->set_resource_byte_offset_from_header(byteOffset);
byteOffset += myMessagePB->ByteSize();
}
// Write out size of header and header
codedOut->WriteLittleEndian32(headerPB->ByteSize());
headerPB->SerializeToCodedStream(codedOut);
// PRINT("BYTE OFFSET TO END OF HEADER %d", codedOut->ByteCount());
// Write out all the messages
// Again, loop over the messages passed in
{
// PRINT("CURRENT OFFSET FROM BEGGING OF FILE %d", codedOut->
ByteCount());
myMessagePB->SerializeToCodedStream(codedOut);
}
delete headerPB;
delete codedOut;
delete writer;
delete stream;
}
</code>
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