Merge pull request #2680 from sdottaka/add-fflush

mrdb, mirb: Add fflush() so that a external program can read output imme...

mrbgems/mruby-bin-debugger/tools/mrdb/cmdmisc.c

@@ -466,6 +466,7 @@ dbgcmd_quit(mrb_state *mrb, mrdb_state *mrdb)
       int buf;
 
       printf("The program is running.  Exit anyway? (y or n) ");
+      fflush(stdout);
 
       if ((buf = getchar()) == EOF) {
         mrdb->dbg->xm = DBG_QUIT;

mrbgems/mruby-bin-debugger/tools/mrdb/mrdb.c

@@ -478,6 +478,7 @@ get_and_parse_command(mrb_state *mrb, mrdb_state *mrdb)
   while (!cmd) {
     for (p=NULL; !p || *p=='\0'; ) {
       printf("(%s:%d) ", mrdb->dbg->prvfile, mrdb->dbg->prvline);
+      fflush(stdout);
       p = get_command(mrb, mrdb);
     }
 

mrbgems/mruby-bin-mirb/tools/mirb/mirb.c

@@ -278,6 +278,7 @@ print_cmdline(int code_block_open)
   else {
     printf("> ");
   }
+  fflush(stdout);
 }
 #endif