static int logfs_delete_dd(struct inode *dir, loff_t pos)
{
/*
* Getting called with pos somewhere beyond eof is either a goofup
* within this file or means someone maliciously edited the
* (crc-protected) journal.
*/
BUG_ON(beyond_eof(dir, pos));
dir->i_ctime = dir->i_mtime = CURRENT_TIME;
log_dir(" Delete dentry (%lx, %llx)\n", dir->i_ino, pos);
return logfs_delete(dir, pos, NULL);
}
bLSM::bLSM(int log_mode, pageid_t max_c0_size, pageid_t internal_region_size, pageid_t datapage_region_size, pageid_t datapage_size, const char *path)
{
recovering = true;
this->max_c0_size = max_c0_size;
this->mean_c0_run_length = max_c0_size;
this->num_c0_mergers = 0;
r_val = 3.0; // MIN_R
tree_c0 = NULL;
tree_c0_mergeable = NULL;
c0_is_merging = false;
tree_c1_prime = NULL;
tree_c1 = NULL;
tree_c1_mergeable = NULL;
tree_c2 = NULL;
// This bool is purely for external code.
this->accepting_new_requests = true;
this->shutting_down_ = false;
c0_flushing = false;
c1_flushing = false;
current_timestamp = 0;
expiry = 0;
this->merge_mgr = 0;
tmerger = new tupleMerger(&replace_merger);
header_mut = rwlc_initlock();
pthread_mutex_init(&rb_mut, 0);
pthread_cond_init(&c0_needed, 0);
pthread_cond_init(&c0_ready, 0);
pthread_cond_init(&c1_needed, 0);
pthread_cond_init(&c1_ready, 0);
epoch = 0;
this->internal_region_size = internal_region_size;
this->datapage_region_size = datapage_region_size;
this->datapage_size = datapage_size;
this->log_mode = log_mode;
this->batch_size = 0;
std::string log_dir(path);
if (log_dir.length() != 0) {
if (log_dir[log_dir.length()-1] != '/')
log_dir += "/";
}
log_dir += "lsm_log";
//log_file = stasis_log_file_pool_open("lsm_log",
log_file = stasis_log_file_pool_open(log_dir.c_str(),
stasis_log_file_mode,
stasis_log_file_permissions);
}
quint8 settings::get_log_path(QString *dir)
{
if( !is_logged ) return 1;
dir->clear();
dir->append( user_dir.absolutePath() );
dir->append( QString("/log") );
QDir log_dir( *dir );
if( !log_dir.exists() )
{
if( !log_dir.mkpath( *dir ) ) return 2;
}
return 0;
}
static int logfs_replace_inode(struct inode *dir, struct dentry *dentry,
struct logfs_disk_dentry *dd, struct inode *inode)
{
loff_t pos;
int err;
err = logfs_get_dd(dir, dentry, dd, &pos);
if (err)
return err;
dd->ino = cpu_to_be64(inode->i_ino);
dd->type = logfs_type(inode);
err = write_dir(dir, dd, pos);
if (err)
return err;
log_dir("Replace dentry (%lx, %llx) %s -> %llx\n", dir->i_ino, pos,
dd->name, be64_to_cpu(dd->ino));
return write_inode(dir);
}