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Sponge
CS144's user-space TCP library
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Sponge
CS144's user-space TCP library
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A FileDescriptor to a Linux TUN device. More...
#include <tun.hh>
Public Member Functions | |
| TunFD (const std::string &devname) | |
| Open an existing persistent TUN device. More... | |
 Public Member Functions inherited from TunTapFD | |
| TunTapFD (const std::string &devname, const bool is_tun) | |
| Open an existing persistent TUN or TAP device. More... | |
| Public Member Functions inherited from FileDescriptor | |
| FileDescriptor (const int fd) | |
| Construct from a file descriptor number returned by the kernel. More... | |
| ~FileDescriptor ()=default | |
| Free the std::shared_ptr; the FDWrapper destructor calls close() when the refcount goes to zero. More... | |
| void | close () |
| Close the underlying file descriptor. More... | |
| FileDescriptor | duplicate () const |
| Copy a FileDescriptor explicitly, increasing the FDWrapper refcount. More... | |
| std::string | read (const size_t limit=std::numeric_limits< size_t >::max()) |
Read up to limit bytes. More... | |
| void | read (std::string &str, const size_t limit=std::numeric_limits< size_t >::max()) |
Read up to limit bytes into str (caller can allocate storage) More... | |
| void | set_blocking (const bool blocking_state) |
| Set blocking(true) or non-blocking(false) More... | |
| size_t | write (BufferViewList buffer, const bool write_all=true) |
| Write a buffer (or list of buffers), possibly blocking until all is written. More... | |
| size_t | write (const char *str, const bool write_all=true) |
| Write a string, possibly blocking until all is written. More... | |
| size_t | write (const std::string &str, const bool write_all=true) |
| Write a string, possibly blocking until all is written. More... | |
| int | fd_num () const |
| underlying descriptor number More... | |
| bool | eof () const |
| EOF flag state. More... | |
| bool | closed () const |
| closed flag state More... | |
| unsigned int | read_count () const |
| number of reads More... | |
| unsigned int | write_count () const |
| number of writes More... | |
| FileDescriptor (const FileDescriptor &other)=delete | |
| copy construction is forbidden More... | |
| FileDescriptor & | operator= (const FileDescriptor &other)=delete |
| copy assignment is forbidden More... | |
| FileDescriptor (FileDescriptor &&other)=default | |
| move construction is allowed More... | |
| FileDescriptor & | operator= (FileDescriptor &&other)=default |
| move assignment is allowed More... | |
A FileDescriptor to a Linux TUN device.
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inlineexplicit |
Open an existing persistent TUN device.
1.8.17