| //===-- PseudoTerminal.h ----------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Created by Greg Clayton on 1/8/08. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef __PseudoTerminal_h__ |
| #define __PseudoTerminal_h__ |
| |
| #include <fcntl.h> |
| #include <termios.h> |
| #include <string> |
| |
| class PseudoTerminal |
| { |
| public: |
| enum { |
| invalid_fd = -1, |
| invalid_pid = -1 |
| }; |
| |
| enum Error |
| { |
| success = 0, |
| err_posix_openpt_failed = -2, |
| err_grantpt_failed = -3, |
| err_unlockpt_failed = -4, |
| err_ptsname_failed = -5, |
| err_open_slave_failed = -6, |
| err_fork_failed = -7, |
| err_setsid_failed = -8, |
| err_failed_to_acquire_controlling_terminal = -9, |
| err_dup2_failed_on_stdin = -10, |
| err_dup2_failed_on_stdout = -11, |
| err_dup2_failed_on_stderr = -12 |
| }; |
| //------------------------------------------------------------------ |
| // Constructors and Destructors |
| //------------------------------------------------------------------ |
| PseudoTerminal (); |
| ~PseudoTerminal (); |
| |
| void CloseMaster (); |
| void CloseSlave (); |
| Error OpenFirstAvailableMaster (int oflag); |
| Error OpenSlave (int oflag); |
| int MasterFD () const { return m_master_fd; } |
| int SlaveFD () const { return m_slave_fd; } |
| int ReleaseMasterFD () |
| { |
| // Release ownership of the master pseudo terminal file |
| // descriptor without closing it. (the destructor for this |
| // class will close it otherwise!) |
| int fd = m_master_fd; |
| m_master_fd = invalid_fd; |
| return fd; |
| } |
| int ReleaseSlaveFD () |
| { |
| // Release ownership of the slave pseudo terminal file |
| // descriptor without closing it (the destructor for this |
| // class will close it otherwise!) |
| int fd = m_slave_fd; |
| m_slave_fd = invalid_fd; |
| return fd; |
| } |
| |
| const char* SlaveName () const; |
| |
| pid_t Fork(Error& error); |
| protected: |
| //------------------------------------------------------------------ |
| // Classes that inherit from PseudoTerminal can see and modify these |
| //------------------------------------------------------------------ |
| int m_master_fd; |
| int m_slave_fd; |
| |
| private: |
| //------------------------------------------------------------------ |
| // Outlaw copy and assignment constructors |
| //------------------------------------------------------------------ |
| PseudoTerminal(const PseudoTerminal& rhs); |
| PseudoTerminal& operator=(const PseudoTerminal& rhs); |
| |
| }; |
| |
| #endif // #ifndef __PseudoTerminal_h__ |