unix-file-fd.h

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#ifndef UNIX_FILE_FD_H
#define UNIX_FILE_FD_H

#include "unix-fd.h"

namespace ns3 {

class UnixFileFdBase : public UnixFd
{
public:
  UnixFileFdBase (int realFd);
  virtual ~UnixFileFdBase ();
  virtual ssize_t Write (const void *buf, size_t count);
  virtual ssize_t Read (void *buf, size_t count);
  virtual ssize_t Recvmsg (struct msghdr *msg, int flags);
  virtual ssize_t Sendmsg (const struct msghdr *msg, int flags);
  virtual bool Isatty (void) const;
  virtual int Setsockopt (int level, int optname,
                          const void *optval, socklen_t optlen);
  virtual int Getsockopt (int level, int optname,
                          void *optval, socklen_t *optlen);
  virtual int Getsockname (struct sockaddr *name, socklen_t *namelen);
  virtual int Getpeername (struct sockaddr *name, socklen_t *namelen);
  virtual int Ioctl (int request, char *argp);
  virtual int Bind (const struct sockaddr *my_addr, socklen_t addrlen);
  virtual int Connect (const struct sockaddr *my_addr, socklen_t addrlen);
  virtual int Listen (int backlog);
  virtual int Accept (struct sockaddr *my_addr, socklen_t *addrlen);
  virtual int Shutdown (int how);
  virtual void * Mmap (void *start, size_t length, int prot, int flags,
                       off64_t offset);
  virtual off64_t Lseek (off64_t offset, int whence);
  virtual int Fxstat (int ver, struct ::stat *buf);
  virtual int Fxstat64 (int ver, struct ::stat64 *buf);
  virtual int Fcntl (int cmd, unsigned long arg);
  virtual int Settime (int flags,
                       const struct itimerspec *new_value,
                       struct itimerspec *old_value);
  virtual int Gettime (struct itimerspec *cur_value) const;
  virtual int Ftruncate (off_t length);

  virtual bool CanRecv (void) const;
  virtual bool CanSend (void) const;
  virtual bool HangupReceived (void) const;
  virtual int Poll (PollTable* ptable);
  virtual int GetRealFd (void) const;

protected:
  int PeekRealFd (void) const;
private:
  int m_realFd;
};

class UnixFileFd : public UnixFileFdBase
{
public:
  UnixFileFd (int realFd);
  virtual ~UnixFileFd ();
  virtual int Close (void);
};

// Only for stdout and stderr emulation, open file at each write then close it, in order
// to have less file opened at same time see option
class UnixFileFdLight : public UnixFileFdBase
{
public:
  UnixFileFdLight (std::string path);
  virtual ~UnixFileFdLight ();
  virtual ssize_t Write (const void *buf, size_t count);
  virtual int Close (void);
  virtual bool CanSend (void) const;

private:
  std::string m_path;
};

class TermUnixFileFd : public UnixFileFdBase
{
public:
  TermUnixFileFd (int realFd);
  virtual ~TermUnixFileFd ();
  virtual int Close (void);
};

// Dev Random special files
class UnixRandomFd : public UnixFileFdBase
{
public:
  UnixRandomFd (std::string devicePath);
  virtual ~UnixRandomFd ();
  virtual ssize_t Read (void *buf, size_t count);
  virtual bool CanRecv (void) const;
  virtual int Close (void);
  virtual bool CanSend (void) const;
  virtual ssize_t Write (const void *buf, size_t count);
  virtual int Fxstat (int ver, struct ::stat *buf);
  virtual int Fxstat64 (int ver, struct ::stat64 *buf);

private:
  std::string m_devPath;
};

} // namespace ns3

#endif /* UNIX_FILE_FD_H */