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Allow specifying the optional actions for tcsetattr

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Kovid Goyal
2020-10-06 16:30:23 +05:30
parent 73db717a0c
commit a3bbad0060
2 changed files with 12 additions and 11 deletions
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16
kitty/data-types.c
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@@ -91,7 +91,7 @@ stop_profiler(PyObject UNUSED *self, PyObject *args UNUSED) {
#endif
static inline bool
put_tty_in_raw_mode(int fd, const struct termios* termios_p, bool read_with_timeout) {
put_tty_in_raw_mode(int fd, const struct termios* termios_p, bool read_with_timeout, int optional_actions) {
struct termios raw_termios = *termios_p;
cfmakeraw(&raw_termios);
if (read_with_timeout) {
@@ -99,7 +99,7 @@ put_tty_in_raw_mode(int fd, const struct termios* termios_p, bool read_with_time
} else {
raw_termios.c_cc[VMIN] = 1; raw_termios.c_cc[VTIME] = 0;
}
if (tcsetattr(fd, TCSAFLUSH, &raw_termios) != 0) { PyErr_SetFromErrno(PyExc_OSError); return false; }
if (tcsetattr(fd, optional_actions, &raw_termios) != 0) { PyErr_SetFromErrno(PyExc_OSError); return false; }
return true;
}
@@ -115,26 +115,26 @@ open_tty(PyObject *self UNUSED, PyObject *args) {
struct termios *termios_p = calloc(1, sizeof(struct termios));
if (!termios_p) return PyErr_NoMemory();
if (tcgetattr(fd, termios_p) != 0) { free(termios_p); PyErr_SetFromErrno(PyExc_OSError); return NULL; }
if (!put_tty_in_raw_mode(fd, termios_p, read_with_timeout != 0)) { free(termios_p); return NULL; }
if (!put_tty_in_raw_mode(fd, termios_p, read_with_timeout != 0, TCSAFLUSH)) { free(termios_p); return NULL; }
return Py_BuildValue("iN", fd, PyLong_FromVoidPtr(termios_p));
}
#define TTY_ARGS \
PyObject *tp; int fd; \
if (!PyArg_ParseTuple(args, "iO!", &fd, &PyLong_Type, &tp)) return NULL; \
PyObject *tp; int fd; int optional_actions = TCSAFLUSH; \
if (!PyArg_ParseTuple(args, "iO!|", &fd, &PyLong_Type, &tp, &optional_actions)) return NULL; \
struct termios *termios_p = PyLong_AsVoidPtr(tp);
static PyObject*
normal_tty(PyObject *self UNUSED, PyObject *args) {
TTY_ARGS
if (tcsetattr(fd, TCSAFLUSH, termios_p) != 0) { PyErr_SetFromErrno(PyExc_OSError); return NULL; }
if (tcsetattr(fd, optional_actions, termios_p) != 0) { PyErr_SetFromErrno(PyExc_OSError); return NULL; }
Py_RETURN_NONE;
}
static PyObject*
raw_tty(PyObject *self UNUSED, PyObject *args) {
TTY_ARGS
if (!put_tty_in_raw_mode(fd, termios_p, false)) return NULL;
if (!put_tty_in_raw_mode(fd, termios_p, false, optional_actions)) return NULL;
Py_RETURN_NONE;
}
@@ -142,7 +142,7 @@ raw_tty(PyObject *self UNUSED, PyObject *args) {
static PyObject*
close_tty(PyObject *self UNUSED, PyObject *args) {
TTY_ARGS
tcsetattr(fd, TCSAFLUSH, termios_p); // deliberately ignore failure
tcsetattr(fd, optional_actions, termios_p); // deliberately ignore failure
free(termios_p);
safe_close(fd, __FILE__, __LINE__);
Py_RETURN_NONE;