/* * call-seq: * io.iflush * * Flushes input buffer in kernel. * * You must require 'io/console' to use this method. */ static VALUE console_iflush(VALUE io) { rb_io_t *fptr; int fd; GetOpenFile(io, fptr); fd = GetReadFD(fptr); #if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H if (tcflush(fd, TCIFLUSH)) rb_sys_fail(0); #endif return io; }
/* * call-seq: * io.cooked! * * Enables cooked mode. * * If the terminal mode needs to be back, use io.cooked { ... }. * * You must require 'io/console' to use this method. */ static VALUE console_set_cooked(VALUE io) { conmode t; rb_io_t *fptr; int fd; GetOpenFile(io, fptr); fd = GetReadFD(fptr); if (!getattr(fd, &t)) rb_sys_fail(0); set_cookedmode(&t, NULL); if (!setattr(fd, &t)) rb_sys_fail(0); return io; }
/* * call-seq: * io.raw!(min: nil, time: nil) * * Enables raw mode. * * If the terminal mode needs to be back, use io.raw { ... }. * * You must require 'io/console' to use this method. */ static VALUE console_set_raw(int argc, VALUE *argv, VALUE io) { conmode t; rb_io_t *fptr; int fd; rawmode_arg_t opts, *optp = rawmode_opt(argc, argv, &opts); GetOpenFile(io, fptr); fd = GetReadFD(fptr); if (!getattr(fd, &t)) rb_sys_fail(0); set_rawmode(&t, optp); if (!setattr(fd, &t)) rb_sys_fail(0); return io; }
/* * call-seq: * io.echo = flag * * Enables/disables echo back. * On some platforms, all combinations of this flags and raw/cooked * mode may not be valid. * * You must require 'io/console' to use this method. */ static VALUE console_set_echo(VALUE io, VALUE f) { conmode t; rb_io_t *fptr; int fd; GetOpenFile(io, fptr); fd = GetReadFD(fptr); if (!getattr(fd, &t)) rb_sys_fail(0); if (RTEST(f)) set_echo(&t, NULL); else set_noecho(&t, NULL); if (!setattr(fd, &t)) rb_sys_fail(0); return io; }
/* * call-seq: * io.ioflush * * Flushes input and output buffers in kernel. * * You must require 'io/console' to use this method. */ static VALUE console_ioflush(VALUE io) { rb_io_t *fptr; #if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H int fd1, fd2; #endif GetOpenFile(io, fptr); #if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H fd1 = GetReadFD(fptr); fd2 = GetWriteFD(fptr); if (fd2 != -1 && fd1 != fd2) { if (tcflush(fd1, TCIFLUSH)) rb_sys_fail(0); if (tcflush(fd2, TCOFLUSH)) rb_sys_fail(0); } else { if (tcflush(fd1, TCIOFLUSH)) rb_sys_fail(0); } #endif return io; }
/* * call-seq: * IO.console -> #<File:/dev/tty> * * Returns an File instance opened console. * * You must require 'io/console' to use this method. */ static VALUE console_dev(VALUE klass) { VALUE con = 0; rb_io_t *fptr; if (klass == rb_cIO) klass = rb_cFile; if (rb_const_defined(klass, id_console)) { con = rb_const_get(klass, id_console); if (RB_TYPE_P(con, T_FILE)) { if ((fptr = RFILE(con)->fptr) && GetReadFD(fptr) != -1) return con; } rb_mod_remove_const(klass, ID2SYM(id_console)); } { VALUE args[2]; #if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H || defined HAVE_SGTTY_H # define CONSOLE_DEVICE "/dev/tty" #elif defined _WIN32 # define CONSOLE_DEVICE "con$" # define CONSOLE_DEVICE_FOR_READING "conin$" # define CONSOLE_DEVICE_FOR_WRITING "conout$" #endif #ifndef CONSOLE_DEVICE_FOR_READING # define CONSOLE_DEVICE_FOR_READING CONSOLE_DEVICE #endif #ifdef CONSOLE_DEVICE_FOR_WRITING VALUE out; rb_io_t *ofptr; #endif int fd; #ifdef CONSOLE_DEVICE_FOR_WRITING fd = rb_cloexec_open(CONSOLE_DEVICE_FOR_WRITING, O_WRONLY, 0); if (fd < 0) return Qnil; rb_update_max_fd(fd); args[1] = INT2FIX(O_WRONLY); args[0] = INT2NUM(fd); out = rb_class_new_instance(2, args, klass); #endif fd = rb_cloexec_open(CONSOLE_DEVICE_FOR_READING, O_RDWR, 0); if (fd < 0) { #ifdef CONSOLE_DEVICE_FOR_WRITING rb_io_close(out); #endif return Qnil; } rb_update_max_fd(fd); args[1] = INT2FIX(O_RDWR); args[0] = INT2NUM(fd); con = rb_class_new_instance(2, args, klass); GetOpenFile(con, fptr); #ifdef HAVE_RUBY_IO_H fptr->pathv = rb_obj_freeze(rb_str_new2(CONSOLE_DEVICE)); #else fptr->path = ruby_strdup(CONSOLE_DEVICE); #endif #ifdef CONSOLE_DEVICE_FOR_WRITING GetOpenFile(out, ofptr); # ifdef HAVE_RB_IO_GET_WRITE_IO ofptr->pathv = fptr->pathv; fptr->tied_io_for_writing = out; # else fptr->f2 = ofptr->f; ofptr->f = 0; # endif ofptr->mode |= FMODE_SYNC; #endif fptr->mode |= FMODE_SYNC; rb_const_set(klass, id_console, con); } return con; }
inline bool IsClosed() { return GetReadFD() < 0; }
inline bool IsReadReady() { return GetReadFD() > 0; }
/* * call-seq: * IO.console -> #<File:/dev/tty> * IO.console(sym, *args) * * Returns an File instance opened console. * * If +sym+ is given, it will be sent to the opened console with * +args+ and the result will be returned instead of the console IO * itself. * * You must require 'io/console' to use this method. */ static VALUE console_dev(int argc, VALUE *argv, VALUE klass) { VALUE con = 0; rb_io_t *fptr; VALUE sym = 0; rb_check_arity(argc, 0, UNLIMITED_ARGUMENTS); if (argc) { Check_Type(sym = argv[0], T_SYMBOL); } if (klass == rb_cIO) klass = rb_cFile; if (rb_const_defined(klass, id_console)) { con = rb_const_get(klass, id_console); if (!RB_TYPE_P(con, T_FILE) || (!(fptr = RFILE(con)->fptr) || GetReadFD(fptr) == -1)) { rb_const_remove(klass, id_console); con = 0; } } if (sym) { if (sym == ID2SYM(id_close) && argc == 1) { if (con) { rb_io_close(con); rb_const_remove(klass, id_console); con = 0; } return Qnil; } } if (!con) { VALUE args[2]; #if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H || defined HAVE_SGTTY_H # define CONSOLE_DEVICE "/dev/tty" #elif defined _WIN32 # define CONSOLE_DEVICE "con$" # define CONSOLE_DEVICE_FOR_READING "conin$" # define CONSOLE_DEVICE_FOR_WRITING "conout$" #endif #ifndef CONSOLE_DEVICE_FOR_READING # define CONSOLE_DEVICE_FOR_READING CONSOLE_DEVICE #endif #ifdef CONSOLE_DEVICE_FOR_WRITING VALUE out; rb_io_t *ofptr; #endif int fd; #ifdef CONSOLE_DEVICE_FOR_WRITING fd = rb_cloexec_open(CONSOLE_DEVICE_FOR_WRITING, O_RDWR, 0); if (fd < 0) return Qnil; rb_update_max_fd(fd); args[1] = INT2FIX(O_WRONLY); args[0] = INT2NUM(fd); out = rb_class_new_instance(2, args, klass); #endif fd = rb_cloexec_open(CONSOLE_DEVICE_FOR_READING, O_RDWR, 0); if (fd < 0) { #ifdef CONSOLE_DEVICE_FOR_WRITING rb_io_close(out); #endif return Qnil; } rb_update_max_fd(fd); args[1] = INT2FIX(O_RDWR); args[0] = INT2NUM(fd); con = rb_class_new_instance(2, args, klass); GetOpenFile(con, fptr); fptr->pathv = rb_obj_freeze(rb_str_new2(CONSOLE_DEVICE)); #ifdef CONSOLE_DEVICE_FOR_WRITING GetOpenFile(out, ofptr); ofptr->pathv = fptr->pathv; fptr->tied_io_for_writing = out; ofptr->mode |= FMODE_SYNC; #endif fptr->mode |= FMODE_SYNC; rb_const_set(klass, id_console, con); } if (sym) { return rb_f_send(argc, argv, con); } return con; }