void Journal::journal(const AlignedBuilder& b) {
try {
mutex::scoped_lock lk(_lfMutex);
if( _lf == 0 )
open();
written += b.len();
_lf->synchronousAppend((void *) b.buf(), b.len());
}
catch(std::exception& e) {
log() << "warning exception in dur::journal " << e.what() << endl;
}
}
/* threading: only durThread() calls this, thus safe. */
void Journal::open() {
mutex::scoped_lock lk(_lfMutex);
assert( _lf == 0 );
string fname = getFilePathFor(nextFileNumber).string();
_lf = new LogFile(fname);
nextFileNumber++;
{
JHeader h(fname);
AlignedBuilder b(8192);
b.appendStruct(h);
_lf->synchronousAppend(b.buf(), b.len());
}
}