# HW12

Homework

To build source, you should install `build-essential`. 

Usage: 
```bash
./server [OPTION]...
./client SERVERNAME PORT FILENAME
```

Server OPTION and arguments:
- `-p port`   :set to port binding. couldn't set to 0
- `-h`        :print help message.

Available macro:

For server
- DEFAULT_MAX_LISTEN_SOCKET: 16
- DEFAULT_SERVER_PORT: 9091
- DEFAULT_MAX_PATH_SIZE: 256(must be less than 1000)
- USE_SENDFILE
    - DEFAULT_SEND_FILE_CHUNK_SIZE: 0x100000(1MB)
- DEFAULT_WORK_QUEUE_SIZE: 10
- DEFAULT_MAX_THREAD_NUMBER: 10
   
For client
- MUL_CLIENT(second unit)
- SLOW_CLIENT(microsecond unit, (buf_size/SLOW_CLIENT) bytes/usec)
- DEFAULT_PROGRESS_BAR_WIDTH: 30
   
For both
- TIMEOUT: 5(second unit)