def main(cls, args):
# db = SimpleDB("studentdb", 400, 8)
fm = FileMgr(File("recoverytest"), 400)
lm = LogMgr(fm, "simpledb.log")
filename = "simpledb.log"
lastblock = fm.length(filename) - 1
blk = BlockId(filename, lastblock)
p = Page(fm.blockSize())
fm.read(blk, p)
iterator = lm.iterator()
while iterator.hasNext():
byte_array = iterator.next()
rec = LogRecord.createLogRecord(byte_array)
print(rec)
def main(cls, args):
# db = SimpleDB("filetest", 400, 8)
# fm = db.fileMgr()
fm = FileMgr(File("filetest"), 400)
blk = BlockId("testfile", 2)
pos1 = 88
p1 = Page(fm.blockSize())
p1.setString(pos1, "abcdefghijklm")
size = Page.maxLength(len("abcdefghijklm"))
pos2 = pos1 + size
p1.setInt(pos2, 345)
fm.write(blk, p1)
p2 = Page(fm.blockSize())
fm.read(blk, p2)
print("offset " + str(pos2) + " contains " + str(p2.getInt(pos2)))
print("offset " + str(pos1) + " contains " + p2.getString(pos1))
