rosapps/mc/src/background.h

   1 #ifndef __BACKGROUND_H
   2 #define __BACKGROUND_H
   3
   4 /* Background code requires socketpair to be available */
   5 /* Do not add the background code if it is not supported */
   6 #ifdef USE_NETCODE
   7 #        define WITH_BACKGROUND
   8 #endif
   9
  10 /* Used for parent/child communication.  These are numbers that
  11  * could not possible be a routine address.
  12  */
  13 enum {
  14     MSG_CHILD_EXITING
  15 };
  16
  17 /* First argument passed to real functions */
  18 enum OperationMode {
  19     Foreground,
  20     Background
  21 };
  22
  23 enum ReturnType {
  24     Return_String,
  25     Return_Integer
  26 };
  27
  28 enum TaskState {
  29     Task_Running,
  30     Task_Stopped
  31 };
  32
  33 typedef struct TaskList {
  34     int   fd;
  35     pid_t pid;
  36     int   state;
  37     char  *info;
  38     struct TaskList *next;
  39 } TaskList;
  40
  41 extern struct TaskList *task_list;
  42
  43 extern int background_wait;
  44
  45 int do_background (char *info);
  46 int background_attention (int fd, void *xpid);
  47 void tell_parent (int msg);
  48 int parent_call (void *routine, int argc, ...);
  49 int call_1s (int (*routine)(enum OperationMode, char *), char *str);
  50
  51 void unregister_task_running (pid_t, int fd);
  52 void register_task_running (pid_t, int, char *);
  53
  54 /* stubs */
  55 void message_1s (int flags, char *title, char *str1);
  56 void message_2s (int flags, char *title, char *str1, char *str2);
  57 void message_3s (int flags, char *title, char *str1, char *str2, const char *str3);
  58 void message_1s1d (int flags, char *title, char *str, int d);
  59
  60 #endif