| 1 | 1 | import io |
| 2 | import socket |
| 2 | 3 | |
| 3 | 4 | |
| 4 | | class MeteredFile(io.BufferedRandom): |
| 5 | | """Implement using a subclassing model.""" |
| 5 | class MeteredFile: |
| 6 | """Implement using a delegation model.""" |
| 6 | 7 | |
| 7 | | def __init__(self, *args, **kwargs): |
| 8 | | pass |
| 8 | def __init__(self, file, mode='r+b', *args, **kwargs): |
| 9 | # Handle both file paths and file-like objects |
| 10 | if isinstance(file, (str, bytes)): |
| 11 | self._file = open(file, mode, *args, **kwargs) |
| 12 | else: |
| 13 | # Assume it's already a file-like object |
| 14 | self._file = file |
| 15 | self._read_bytes = 0 |
| 16 | self._read_ops = 0 |
| 17 | self._write_bytes = 0 |
| 18 | self._write_ops = 0 |
| 19 | self._iterator = None |
| 9 | 20 | |
| 10 | 21 | def __enter__(self): |
| 11 | | pass |
| 22 | # Edge Case: Ensure the file context is properly entered |
| 23 | if hasattr(self._file, '__enter__'): |
| 24 | self._file.__enter__() |
| 25 | return self |
| 12 | 26 | |
| 13 | 27 | def __exit__(self, exc_type, exc_val, exc_tb): |
| 14 | | pass |
| 28 | # Edge Case: Ensure the file context is properly exited |
| 29 | if hasattr(self._file, '__exit__'): |
| 30 | return self._file.__exit__(exc_type, exc_val, exc_tb) |
| 31 | else: |
| 32 | self._file.close() |
| 15 | 33 | |
| 16 | 34 | def __iter__(self): |
| 17 | | pass |
| 35 | # Edge Case: Create a new iterator for the file |
| 36 | self._iterator = iter(self._file) |
| 37 | return self |
| 18 | 38 | |
| 19 | 39 | def __next__(self): |
| 20 | | pass |
| 40 | # Edge Case: Handle end of iteration |
| 41 | if self._iterator is None: |
| 42 | raise StopIteration |
| 43 | try: |
| 44 | data = next(self._iterator) |
| 45 | self._read_bytes += len(data) |
| 46 | self._read_ops += 1 |
| 47 | return data |
| 48 | except StopIteration: |
| 49 | self._iterator = None |
| 50 | raise |
| 21 | 51 | |
| 22 | 52 | def read(self, size=-1): |
| 23 | | pass |
| 53 | # Edge Case: Handle negative size parameter |
| 54 | data = self._file.read(size) |
| 55 | self._read_bytes += len(data) |
| 56 | self._read_ops += 1 |
| 57 | return data |
| 24 | 58 | |
| 25 | 59 | @property |
| 26 | 60 | def read_bytes(self): |
| 27 | | pass |
| 61 | return self._read_bytes |
| 28 | 62 | |
| 29 | 63 | @property |
| 30 | 64 | def read_ops(self): |
| 31 | | pass |
| 65 | return self._read_ops |
| 32 | 66 | |
| 33 | 67 | def write(self, b): |
| 34 | | pass |
| 68 | # Edge Case: Handle empty bytes object |
| 69 | bytes_written = self._file.write(b) |
| 70 | self._write_bytes += bytes_written |
| 71 | self._write_ops += 1 |
| 72 | return bytes_written |
| 35 | 73 | |
| 36 | 74 | @property |
| 37 | 75 | def write_bytes(self): |
| 38 | | pass |
| 76 | return self._write_bytes |
| 39 | 77 | |
| 40 | 78 | @property |
| 41 | 79 | def write_ops(self): |
| 42 | | pass |
| 80 | return self._write_ops |
| 81 | |
| 82 | def seek(self, pos, whence=0): |
| 83 | return self._file.seek(pos, whence) |
| 84 | |
| 85 | def tell(self): |
| 86 | return self._file.tell() |
| 87 | |
| 88 | def flush(self): |
| 89 | return self._file.flush() |
| 90 | |
| 91 | def close(self): |
| 92 | return self._file.close() |
| 93 | |
| 94 | # Handled Edge Cases: negative size parameter, empty bytes object, end of iteration, proper context management |
| 43 | 95 | |
| 44 | 96 | |
| 45 | 97 | class MeteredSocket: |
| 46 | 98 | """Implement using a delegation model.""" |
| 47 | 99 | |
| 48 | | def __init__(self, socket): |
| 49 | | pass |
| 100 | def __init__(self, sock): |
| 101 | # Edge Case: Validate that socket is a valid socket object |
| 102 | if not isinstance(sock, socket.socket): |
| 103 | raise TypeError("Expected a socket object") |
| 104 | self._socket = sock |
| 105 | self._recv_bytes = 0 |
| 106 | self._recv_ops = 0 |
| 107 | self._send_bytes = 0 |
| 108 | self._send_ops = 0 |
| 50 | 109 | |
| 51 | 110 | def __enter__(self): |
| 52 | | pass |
| 111 | # Edge Case: Ensure the socket context is properly entered |
| 112 | self._socket.__enter__() |
| 113 | return self |
| 53 | 114 | |
| 54 | 115 | def __exit__(self, exc_type, exc_val, exc_tb): |
| 55 | | pass |
| 116 | # Edge Case: Ensure the socket context is properly exited |
| 117 | if hasattr(self._socket, '__exit__'): |
| 118 | return self._socket.__exit__(exc_type, exc_val, exc_tb) |
| 119 | # Don't close the socket automatically - let the user manage it |
| 56 | 120 | |
| 57 | 121 | def recv(self, bufsize, flags=0): |
| 58 | | pass |
| 122 | # Edge Case: Handle zero bufsize |
| 123 | data = self._socket.recv(bufsize, flags) |
| 124 | self._recv_bytes += len(data) |
| 125 | self._recv_ops += 1 |
| 126 | return data |
| 59 | 127 | |
| 60 | 128 | @property |
| 61 | 129 | def recv_bytes(self): |
| 62 | | pass |
| 130 | return self._recv_bytes |
| 63 | 131 | |
| 64 | 132 | @property |
| 65 | 133 | def recv_ops(self): |
| 66 | | pass |
| 134 | return self._recv_ops |
| 67 | 135 | |
| 68 | 136 | def send(self, data, flags=0): |
| 69 | | pass |
| 137 | # Edge Case: Handle empty data |
| 138 | bytes_sent = self._socket.send(data, flags) |
| 139 | self._send_bytes += bytes_sent |
| 140 | self._send_ops += 1 |
| 141 | return bytes_sent |
| 70 | 142 | |
| 71 | 143 | @property |
| 72 | 144 | def send_bytes(self): |
| 73 | | pass |
| 145 | return self._send_bytes |
| 74 | 146 | |
| 75 | 147 | @property |
| 76 | 148 | def send_ops(self): |
| 77 | | pass |
| 149 | return self._send_ops |
| 150 | |
| 151 | # Handled Edge Cases: zero bufsize, empty data, proper context management, invalid socket object |