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Remote control: Fix kitty @ sometimes failing to read the response from kitty.

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Fixes #614
This commit is contained in:
Kovid Goyal
2018-06-08 15:35:01 +05:30
parent 44b84ba295
commit 19721014d0
5 changed files with 123 additions and 41 deletions
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30
kitty/data-types.c
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@@ -11,12 +11,15 @@
#include <unistd.h>
#undef _DARWIN_C_SOURCE
#endif
#define _DEFAULT_SOURCE
#include <termios.h>
#include "data-types.h"
#include "control-codes.h"
#include "modes.h"
#include <stddef.h>
#include <termios.h>
#include <signal.h>
#include <fcntl.h>
#ifdef WITH_PROFILER
#include <gperftools/profiler.h>
#endif
@@ -103,7 +106,34 @@ stop_profiler(PyObject UNUSED *self) {
}
#endif
static PyObject*
open_tty(PyObject *self UNUSED, PyObject *args UNUSED) {
int fd = open("/dev/tty", O_RDWR | O_NONBLOCK | O_CLOEXEC | O_NOCTTY);
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; }
struct termios raw_termios = *termios_p;
cfmakeraw(&raw_termios);
raw_termios.c_cc[VMIN] = 0; raw_termios.c_cc[VTIME] = 0;
if (tcsetattr(fd, TCSAFLUSH, &raw_termios) != 0) { free(termios_p); PyErr_SetFromErrno(PyExc_OSError); return NULL; }
return Py_BuildValue("iN", fd, PyLong_FromVoidPtr(termios_p));
}
static PyObject*
close_tty(PyObject *self UNUSED, PyObject *args) {
PyObject *tp;
int fd;
if (!PyArg_ParseTuple(args, "iO!", &fd, &PyLong_Type, &tp)) return NULL;
struct termios *termios_p = PyLong_AsVoidPtr(tp);
tcsetattr(fd, TCSAFLUSH, termios_p);
free(termios_p);
close(fd);
Py_RETURN_NONE;
}
static PyMethodDef module_methods[] = {
{"open_tty", open_tty, METH_NOARGS, ""},
{"close_tty", close_tty, METH_VARARGS, ""},
{"set_iutf8", (PyCFunction)pyset_iutf8, METH_VARARGS, ""},
{"thread_write", (PyCFunction)cm_thread_write, METH_VARARGS, ""},
{"parse_bytes", (PyCFunction)parse_bytes, METH_VARARGS, ""},