Mercurial > cpython-lru_cache-weakref

annotate Modules/termios.c @ 5817:48b94de85bf3 legacy-trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents 9be65e6c35c8
children a79d0cef10a1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1879
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
parents:
diff changeset
1 /* termiosmodule.c -- POSIX terminal I/O module implementation. */
91bfb2771554 Steen Lumholt's termios interface.
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parents:
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2
1888
be956b1efb97 * various modules: #include "Python.h" and remove most remporary
Guido van Rossum <guido@python.org>
parents: 1879
diff changeset
3 #include <Python.h>
1879
91bfb2771554 Steen Lumholt's termios interface.
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4
91bfb2771554 Steen Lumholt's termios interface.
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parents:
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5 #define PyInit_termios inittermios
91bfb2771554 Steen Lumholt's termios interface.
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6
91bfb2771554 Steen Lumholt's termios interface.
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7 #include <termios.h>
91bfb2771554 Steen Lumholt's termios interface.
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8
91bfb2771554 Steen Lumholt's termios interface.
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9 #define BAD "bad termios argument"
91bfb2771554 Steen Lumholt's termios interface.
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10
91bfb2771554 Steen Lumholt's termios interface.
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11 static PyObject *TermiosError;
91bfb2771554 Steen Lumholt's termios interface.
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12
91bfb2771554 Steen Lumholt's termios interface.
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13 /* termios = tcgetattr(fd)
91bfb2771554 Steen Lumholt's termios interface.
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14 termios is
91bfb2771554 Steen Lumholt's termios interface.
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15 [iflag, oflag, cflag, lflag, ispeed, ospeed, [cc[0], ..., cc[NCCS]]]
91bfb2771554 Steen Lumholt's termios interface.
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16
91bfb2771554 Steen Lumholt's termios interface.
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17 Return the attributes of the terminal device. */
91bfb2771554 Steen Lumholt's termios interface.
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18
91bfb2771554 Steen Lumholt's termios interface.
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19 static PyObject *
91bfb2771554 Steen Lumholt's termios interface.
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20 termios_tcgetattr(self, args)
91bfb2771554 Steen Lumholt's termios interface.
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21 PyObject *self;
91bfb2771554 Steen Lumholt's termios interface.
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22 PyObject *args;
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
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23 {
91bfb2771554 Steen Lumholt's termios interface.
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24 int fd;
91bfb2771554 Steen Lumholt's termios interface.
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25 struct termios mode;
91bfb2771554 Steen Lumholt's termios interface.
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26 PyObject *cc;
91bfb2771554 Steen Lumholt's termios interface.
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27 speed_t ispeed, ospeed;
91bfb2771554 Steen Lumholt's termios interface.
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28 PyObject *v;
91bfb2771554 Steen Lumholt's termios interface.
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29 int i;
91bfb2771554 Steen Lumholt's termios interface.
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30 char ch;
91bfb2771554 Steen Lumholt's termios interface.
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31
91bfb2771554 Steen Lumholt's termios interface.
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32 if (!PyArg_Parse(args, "i", &fd))
91bfb2771554 Steen Lumholt's termios interface.
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33 return NULL;
91bfb2771554 Steen Lumholt's termios interface.
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34
91bfb2771554 Steen Lumholt's termios interface.
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35 if (tcgetattr(fd, &mode) == -1)
91bfb2771554 Steen Lumholt's termios interface.
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36 PyErr_SetFromErrno(TermiosError);
91bfb2771554 Steen Lumholt's termios interface.
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37
91bfb2771554 Steen Lumholt's termios interface.
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38 ispeed = cfgetispeed(&mode);
91bfb2771554 Steen Lumholt's termios interface.
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39 ospeed = cfgetospeed(&mode);
91bfb2771554 Steen Lumholt's termios interface.
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40
91bfb2771554 Steen Lumholt's termios interface.
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41 cc = PyList_New(NCCS);
91bfb2771554 Steen Lumholt's termios interface.
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42 if (cc == NULL)
91bfb2771554 Steen Lumholt's termios interface.
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43 return NULL;
91bfb2771554 Steen Lumholt's termios interface.
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44 for (i = 0; i < NCCS; i++) {
91bfb2771554 Steen Lumholt's termios interface.
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45 ch = (char)mode.c_cc[i];
91bfb2771554 Steen Lumholt's termios interface.
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46 v = PyString_FromStringAndSize(&ch, 1);
91bfb2771554 Steen Lumholt's termios interface.
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47 if (v == NULL)
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9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
Barry Warsaw <barry@python.org>
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48 goto err;
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91bfb2771554 Steen Lumholt's termios interface.
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49 PyList_SetItem(cc, i, v);
91bfb2771554 Steen Lumholt's termios interface.
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50 }
91bfb2771554 Steen Lumholt's termios interface.
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51
91bfb2771554 Steen Lumholt's termios interface.
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52 /* Convert the MIN and TIME slots to integer. On some systems, the
91bfb2771554 Steen Lumholt's termios interface.
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53 MIN and TIME slots are the same as the EOF and EOL slots. So we
91bfb2771554 Steen Lumholt's termios interface.
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54 only do this in noncanonical input mode. */
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3b7cd83b602d Fix operator priority bug found thanks to gcc -Wall.
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55 if ((mode.c_lflag & ICANON) == 0) {
1879
91bfb2771554 Steen Lumholt's termios interface.
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56 v = PyInt_FromLong((long)mode.c_cc[VMIN]);
91bfb2771554 Steen Lumholt's termios interface.
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57 if (v == NULL)
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58 goto err;
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91bfb2771554 Steen Lumholt's termios interface.
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59 PyList_SetItem(cc, VMIN, v);
91bfb2771554 Steen Lumholt's termios interface.
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60 v = PyInt_FromLong((long)mode.c_cc[VTIME]);
91bfb2771554 Steen Lumholt's termios interface.
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61 if (v == NULL)
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62 goto err;
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91bfb2771554 Steen Lumholt's termios interface.
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63 PyList_SetItem(cc, VTIME, v);
91bfb2771554 Steen Lumholt's termios interface.
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64 }
91bfb2771554 Steen Lumholt's termios interface.
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65
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9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
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66 if (!(v = PyList_New(7)))
9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
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67 goto err;
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68
1879
91bfb2771554 Steen Lumholt's termios interface.
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69 PyList_SetItem(v, 0, PyInt_FromLong((long)mode.c_iflag));
91bfb2771554 Steen Lumholt's termios interface.
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70 PyList_SetItem(v, 1, PyInt_FromLong((long)mode.c_oflag));
91bfb2771554 Steen Lumholt's termios interface.
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71 PyList_SetItem(v, 2, PyInt_FromLong((long)mode.c_cflag));
91bfb2771554 Steen Lumholt's termios interface.
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72 PyList_SetItem(v, 3, PyInt_FromLong((long)mode.c_lflag));
91bfb2771554 Steen Lumholt's termios interface.
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73 PyList_SetItem(v, 4, PyInt_FromLong((long)ispeed));
91bfb2771554 Steen Lumholt's termios interface.
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74 PyList_SetItem(v, 5, PyInt_FromLong((long)ospeed));
91bfb2771554 Steen Lumholt's termios interface.
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75 PyList_SetItem(v, 6, cc);
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9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
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76 if (PyErr_Occurred()){
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77 Py_DECREF(v);
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78 goto err;
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79 }
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91bfb2771554 Steen Lumholt's termios interface.
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80 return v;
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9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
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81 err:
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82 Py_DECREF(cc);
9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
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83 return NULL;
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91bfb2771554 Steen Lumholt's termios interface.
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84 }
91bfb2771554 Steen Lumholt's termios interface.
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85
91bfb2771554 Steen Lumholt's termios interface.
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86 /* tcsetattr(fd, when, termios)
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87 Set the attributes of the terminal device. */
91bfb2771554 Steen Lumholt's termios interface.
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88
91bfb2771554 Steen Lumholt's termios interface.
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89 static PyObject *
91bfb2771554 Steen Lumholt's termios interface.
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90 termios_tcsetattr(self, args)
91bfb2771554 Steen Lumholt's termios interface.
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91 PyObject *self;
91bfb2771554 Steen Lumholt's termios interface.
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92 PyObject *args;
91bfb2771554 Steen Lumholt's termios interface.
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93 {
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94 int fd, when;
91bfb2771554 Steen Lumholt's termios interface.
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95 struct termios mode;
91bfb2771554 Steen Lumholt's termios interface.
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96 speed_t ispeed, ospeed;
91bfb2771554 Steen Lumholt's termios interface.
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97 PyObject *term, *cc, *v;
91bfb2771554 Steen Lumholt's termios interface.
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98 int i;
91bfb2771554 Steen Lumholt's termios interface.
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99
91bfb2771554 Steen Lumholt's termios interface.
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100 if (!PyArg_Parse(args, "(iiO)", &fd, &when, &term))
91bfb2771554 Steen Lumholt's termios interface.
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101 return NULL;
91bfb2771554 Steen Lumholt's termios interface.
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parents:
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102 if (!PyList_Check(term) || PyList_Size(term) != 7) {
91bfb2771554 Steen Lumholt's termios interface.
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103 PyErr_SetString(PyExc_TypeError, BAD);
91bfb2771554 Steen Lumholt's termios interface.
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104 return NULL;
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
parents:
diff changeset
105 }
91bfb2771554 Steen Lumholt's termios interface.
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parents:
diff changeset
106
91bfb2771554 Steen Lumholt's termios interface.
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107 mode.c_iflag = (tcflag_t) PyInt_AsLong(PyList_GetItem(term, 0));
91bfb2771554 Steen Lumholt's termios interface.
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parents:
diff changeset
108 mode.c_oflag = (tcflag_t) PyInt_AsLong(PyList_GetItem(term, 1));
91bfb2771554 Steen Lumholt's termios interface.
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109 mode.c_cflag = (tcflag_t) PyInt_AsLong(PyList_GetItem(term, 2));
91bfb2771554 Steen Lumholt's termios interface.
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110 mode.c_lflag = (tcflag_t) PyInt_AsLong(PyList_GetItem(term, 3));
91bfb2771554 Steen Lumholt's termios interface.
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111 ispeed = (speed_t) PyInt_AsLong(PyList_GetItem(term, 4));
91bfb2771554 Steen Lumholt's termios interface.
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112 ospeed = (speed_t) PyInt_AsLong(PyList_GetItem(term, 5));
91bfb2771554 Steen Lumholt's termios interface.
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113 cc = PyList_GetItem(term, 6);
4928
9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
Barry Warsaw <barry@python.org>
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diff changeset
114 if (PyErr_Occurred())
9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
Barry Warsaw <barry@python.org>
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115 return NULL;
1879
91bfb2771554 Steen Lumholt's termios interface.
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116
91bfb2771554 Steen Lumholt's termios interface.
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117 if (!PyList_Check(cc) || PyList_Size(cc) != NCCS) {
91bfb2771554 Steen Lumholt's termios interface.
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118 PyErr_SetString(PyExc_TypeError, BAD);
91bfb2771554 Steen Lumholt's termios interface.
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119 return NULL;
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
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120 }
91bfb2771554 Steen Lumholt's termios interface.
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121
91bfb2771554 Steen Lumholt's termios interface.
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122 for (i = 0; i < NCCS; i++) {
91bfb2771554 Steen Lumholt's termios interface.
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123 v = PyList_GetItem(cc, i);
4928
9be65e6c35c8 The usual return-value and memory management checks. I'm not planning
Barry Warsaw <barry@python.org>
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diff changeset
124
1879
91bfb2771554 Steen Lumholt's termios interface.
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125 if (PyString_Check(v) && PyString_Size(v) == 1)
91bfb2771554 Steen Lumholt's termios interface.
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126 mode.c_cc[i] = (cc_t) * PyString_AsString(v);
91bfb2771554 Steen Lumholt's termios interface.
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127 else if (PyInt_Check(v))
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128 mode.c_cc[i] = (cc_t) PyInt_AsLong(v);
91bfb2771554 Steen Lumholt's termios interface.
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129 else {
91bfb2771554 Steen Lumholt's termios interface.
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130 PyErr_SetString(PyExc_TypeError, BAD);
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
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131 return NULL;
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
parents:
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132 }
91bfb2771554 Steen Lumholt's termios interface.
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133 }
91bfb2771554 Steen Lumholt's termios interface.
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parents:
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134
91bfb2771554 Steen Lumholt's termios interface.
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diff changeset
135 if (cfsetispeed(&mode, (speed_t) ispeed) == -1)
91bfb2771554 Steen Lumholt's termios interface.
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parents:
diff changeset
136 PyErr_SetFromErrno(TermiosError);
91bfb2771554 Steen Lumholt's termios interface.
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diff changeset
137 if (cfsetospeed(&mode, (speed_t) ospeed) == -1)
91bfb2771554 Steen Lumholt's termios interface.
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parents:
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138 PyErr_SetFromErrno(TermiosError);
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
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diff changeset
139 if (tcsetattr(fd, when, &mode) == -1)
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
parents:
diff changeset
140 PyErr_SetFromErrno(TermiosError);
91bfb2771554 Steen Lumholt's termios interface.
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141
91bfb2771554 Steen Lumholt's termios interface.
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142 Py_INCREF(Py_None);
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
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143 return Py_None;
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
parents:
diff changeset
144 }
91bfb2771554 Steen Lumholt's termios interface.
Guido van Rossum <guido@python.org>
parents:
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145
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146 /* tcsendbreak(fd, duration)
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147 Generate a break condition. */
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148
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149 static PyObject *
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150 termios_tcsendbreak(self, args)
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151 PyObject *self;
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152 PyObject *args;
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153 {
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154 int fd, duration;
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155
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156 if (!PyArg_Parse(args, "(ii)", &fd, &duration))
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157 return NULL;
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158 if (tcsendbreak(fd, duration) == -1)
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159 PyErr_SetFromErrno(TermiosError);
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160
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161 Py_INCREF(Py_None);
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162 return Py_None;
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163 }
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164
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165 /* tcdrain(fd)
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166 Wait until all queued output to the terminal has been
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167 transmitted. */
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168
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169 static PyObject *
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170 termios_tcdrain(self, args)
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171 PyObject *self;
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172 PyObject *args;
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173 {
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174 int fd;
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175
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176 if (!PyArg_Parse(args, "i", &fd))
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177 return NULL;
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178 if (tcdrain(fd) == -1)
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179 PyErr_SetFromErrno(TermiosError);
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180
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181 Py_INCREF(Py_None);
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182 return Py_None;
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183 }
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184
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185 /* tcflush(fd, queue)
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186 Clear the input and/or output queues associated with
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187 the terminal. */
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188
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189 static PyObject *
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190 termios_tcflush(self, args)
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191 PyObject *self;
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192 PyObject *args;
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193 {
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194 int fd, queue;
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195
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196 if (!PyArg_Parse(args, "(ii)", &fd, &queue))
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197 return NULL;
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198 if (tcflush(fd, queue) == -1)
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199 PyErr_SetFromErrno(TermiosError);
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200
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201 Py_INCREF(Py_None);
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202 return Py_None;
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203 }
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204
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205 /* tcflow(fd, action)
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206 Perform operations relating to XON/XOFF flow control on
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207 the terminal. */
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208
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209 static PyObject *
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210 termios_tcflow(self, args)
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211 PyObject *self;
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212 PyObject *args;
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213 {
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214 int fd, action;
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215
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216 if (!PyArg_Parse(args, "(ii)", &fd, &action))
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217 return NULL;
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218 if (tcflow(fd, action) == -1)
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219 PyErr_SetFromErrno(TermiosError);
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220
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221 Py_INCREF(Py_None);
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222 return Py_None;
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223 }
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224
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225 static PyMethodDef termios_methods[] =
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226 {
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227 {"tcgetattr", termios_tcgetattr},
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228 {"tcsetattr", termios_tcsetattr},
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229 {"tcsendbreak", termios_tcsendbreak},
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230 {"tcdrain", termios_tcdrain},
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231 {"tcflush", termios_tcflush},
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232 {"tcflow", termios_tcflow},
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233 {NULL, NULL}
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234 };
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235
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236 void
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237 PyInit_termios()
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238 {
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239 PyObject *m, *d;
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240
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241 m = Py_InitModule("termios", termios_methods);
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242
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243 d = PyModule_GetDict(m);
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244 TermiosError = Py_BuildValue("s", "termios.error");
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245 PyDict_SetItemString(d, "error", TermiosError);
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246
91bfb2771554 Steen Lumholt's termios interface.
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247 if (PyErr_Occurred())
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248 Py_FatalError("can't initialize module termios");
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249 }