Function releasePendingBuffer

packages/dofs/src/fs/writeFile.ts:734–743

(db: Database, entry: WriteBufferEntry, now: () => number)

}

function releasePendingBuffer(db: Database, entry: WriteBufferEntry, now: () => number): void {
  if (entry.pending === undefined) return;
  entry.openCount -= 1;
  if (entry.openCount > 0) return;

  const inode = commitPendingBuffer(db, entry, now);
  // File is closed; drop the now-promoted entry. A subsequent open
  // hits the SQL path and gets a fresh buffer if needed.
  deleteWriteBuffer(db, inode);
}

// Hydrate a freshly-opened buffer with the inode's current bytes
// the first time we mutate it. Avoids paying the read cost when the