src/subshell.h

   1
   2 /** \file subshell.h
   3  *  \brief Header: concurrent shell support
   4  */
   5
   6 #ifndef MC_SUBSHELL_H
   7 #define MC_SUBSHELL_H
   8
   9 /* Used to distinguish between a normal MC termination and */
  10 /* one caused by typing `exit' or `logout' in the subshell */
  11 #define SUBSHELL_EXIT 128
  12
  13 #ifdef HAVE_SUBSHELL_SUPPORT
  14
  15 /* If using a subshell for evaluating commands this is true */
  16 extern int use_subshell;
  17
  18 /* File descriptor of the pseudoterminal used by the subshell */
  19 extern int subshell_pty;
  20
  21 /* State of the subshell; see subshell.c for an explanation */
  22 enum subshell_state_enum {INACTIVE, ACTIVE, RUNNING_COMMAND};
  23 extern enum subshell_state_enum subshell_state;
  24
  25 /* Holds the latest prompt captured from the subshell */
  26 extern char *subshell_prompt;
  27
  28 /* For the `how' argument to various functions */
  29 enum {QUIETLY, VISIBLY};
  30
  31 /* Exported functions */
  32 void init_subshell (void);
  33 int invoke_subshell (const char *command, int how, char **new_dir);
  34 int read_subshell_prompt (void);
  35 void resize_subshell (void);
  36 int exit_subshell (void);
  37 void do_subshell_chdir (const char *directory, int update_prompt, int reset_prompt);
  38 void subshell_get_console_attributes (void);
  39 void sigchld_handler (int sig);
  40
  41 #else
  42 #define use_subshell 0
  43 #endif /* not HAVE_SUBSHELL_SUPPORT */
  44
  45 #endif