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Add Lua API tio.line_get and tio.get_state

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tio.line_get()
  Get state of multiple tty modem lines.
  It is equivalent to the key command ctrl-t L.

  Return 6 values DTR, RTS, CTS, DSR, CD, RI.
  Each return value is high (==tio.C.LN_HIGH) or low (==tio.C.LN_LOW).

tio.get_state()
  Return the main state of tio as a integer.
  Return value is one of tio.C.SA_INTERACTIVE, tio.C.SA_STARTING,
    tio.C.SA_PIPED_INPUT, tio.C.SA_PIPED_INPUT,
    tio.C.SA_EXEC_SHELL_COMMAND, tio.C.SA_XYMODEM.

refactoring
  rename line_set() to api_line_set().
This commit is contained in:
yabu76 2026-03-08 09:43:43 +09:00
parent a19bf0aa44
commit dc7e21b666
1 changed files with 43 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

45
src/script.c
View file

@ -200,7 +200,7 @@ static int api_msleep(lua_State *L)
}
// lua: tio.line_set(dtr,rts,cts,dsr,cd,ri)
static int line_set(lua_State *L)
static int api_line_set(lua_State *L)
{
tty_line_config_t line_config[6] = { };
@ -258,6 +258,33 @@ static int line_set(lua_State *L)
return 0;
}
// lua: tio.line_get()
static int api_line_get(lua_State *L)
{
int line_state;
const int LN_LOW = 0;
const int LN_HIGH = 1;
if (device_fd == 0)
{
return luaL_error(L, "tty device not ready");
}
if (ioctl(device_fd, TIOCMGET, &line_state) < 0)
{
return luaL_error(L, "Could not get line state");
}
lua_pushinteger(L, (line_state & TIOCM_DTR) ? LN_LOW : LN_HIGH);
lua_pushinteger(L, (line_state & TIOCM_RTS) ? LN_LOW : LN_HIGH);
lua_pushinteger(L, (line_state & TIOCM_CTS) ? LN_LOW : LN_HIGH);
lua_pushinteger(L, (line_state & TIOCM_DSR) ? LN_LOW : LN_HIGH);
lua_pushinteger(L, (line_state & TIOCM_CD) ? LN_LOW : LN_HIGH);
lua_pushinteger(L, (line_state & TIOCM_RI) ? LN_LOW : LN_HIGH);
return 6;
}
// lua: tio.send(file, protocol)
static int api_send(lua_State *L)
{
@ -718,6 +745,13 @@ int api_exec_shell_command(lua_State *L)
return 0;
}
// lua: tio.get_state()
static int api_get_state(lua_State *L)
{
lua_pushinteger(L, state);
return 1;
}
// lua: tio.get_version()
static int api_get_version(lua_State *L)
{
@ -760,7 +794,8 @@ static const struct luaL_Reg tio_lib[] =
{ "echo", api_echo},
{ "sleep", api_sleep},
{ "msleep", api_msleep},
{ "line_set", line_set},
{ "line_set", api_line_set},
{ "line_get", api_line_get},
{ "send", api_send},
{ "write", api_write},
{ "twrite", api_twrite},
@ -778,6 +813,7 @@ static const struct luaL_Reg tio_lib[] =
{ "set_raw_mode_interactive", api_set_raw_mode_interactive},
{ "set_timestamp_mode", api_set_timestamp_mode},
{ "exec_shell_command", api_exec_shell_command},
{ "get_state", api_get_state},
{ "get_version", api_get_version},
{NULL, NULL}
@ -846,6 +882,11 @@ static void script_set_consts(lua_State *L)
script_set_field_integer(L, "XM_CRC", XMODEM_CRC);
script_set_field_integer(L, "XM_1K", XMODEM_1K);
script_set_field_integer(L, "YM_NORMAL", YMODEM);
script_set_field_integer(L, "SA_INTERACTIVE", STATE_INTERACTIVE);
script_set_field_integer(L, "SA_STARTING", STATE_STARTING);
script_set_field_integer(L, "SA_PIPED_INPUT", STATE_PIPED_INPUT);
script_set_field_integer(L, "SA_EXEC_SHELL_COMMAND", STATE_EXEC_SHELL_COMMAND);
script_set_field_integer(L, "SA_XYMODEM", STATE_XYMODEM);
lua_pop(L, 2);
}