Rietveld Code Review Tool
Help | Bug tracker | Discussion group | Source code | Sign in
(1)

Side by Side Diff: Modules/clinic/fcntlmodule.c.h

Issue 20152: Derby: Convert the _imp module to use Argument Clinic
Patch Set: Created 5 years, 3 months ago
Left:
Right:
Use n/p to move between diff chunks; N/P to move between comments. Please Sign in to add in-line comments.
Jump to:
View unified diff | Download patch
« no previous file with comments | « no previous file | Modules/fcntlmodule.c » ('j') | Modules/fcntlmodule.c » ('J')
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
1 /*[clinic input]
2 preserve
3 [clinic start generated code]*/
4
5 PyDoc_STRVAR(fcntl_fcntl__doc__,
6 "fcntl($module, fd, code, arg=None, /)\n"
7 "--\n"
8 "\n"
9 "Perform the operation `code` on file descriptor fd.\n"
10 "\n"
11 "The values used for `code` are operating system dependent, and are available\n"
12 "as constants in the fcntl module, using the same names as used in\n"
13 "the relevant C header files. The argument arg is optional, and\n"
14 "defaults to 0; it may be an int or a string. If arg is given as a string,\n"
15 "the return value of fcntl is a string of that length, containing the\n"
16 "resulting value put in the arg buffer by the operating system. The length\n"
17 "of the arg string is not allowed to exceed 1024 bytes. If the arg given\n"
18 "is an integer or if none is specified, the result value is an integer\n"
19 "corresponding to the return value of the fcntl call in the C code.");
20
21 #define FCNTL_FCNTL_METHODDEF \
22 {"fcntl", (PyCFunction)fcntl_fcntl, METH_VARARGS, fcntl_fcntl__doc__},
23
24 static PyObject *
25 fcntl_fcntl_impl(PyModuleDef *module, int fd, int code, PyObject *arg);
26
27 static PyObject *
28 fcntl_fcntl(PyModuleDef *module, PyObject *args)
29 {
30 PyObject *return_value = NULL;
31 int fd;
32 int code;
33 PyObject *arg = NULL;
34
35 if (!PyArg_ParseTuple(args,
36 "O&i|O:fcntl",
37 conv_descriptor, &fd, &code, &arg))
38 goto exit;
39 return_value = fcntl_fcntl_impl(module, fd, code, arg);
40
41 exit:
42 return return_value;
43 }
44
45 PyDoc_STRVAR(fcntl_ioctl__doc__,
46 "ioctl($module, fd, op, arg=None, mutate_flag=1, /)\n"
47 "--\n"
48 "\n"
49 "Perform the operation op on file descriptor fd.\n"
50 "\n"
51 "The values used for op are operating system dependent, and are available as\n"
52 "constants in the fcntl or termios library modules, using the same names as\n"
53 "used in the relevant C header files.\n"
54 "\n"
55 "The argument `arg` is optional, and defaults to 0; it may be an int or a\n"
56 "buffer containing character data (most likely a string or an array).\n"
57 "\n"
58 "If the argument is a mutable buffer (such as an array) and if the\n"
59 "mutate_flag argument (which is only allowed in this case) is true then the\n"
60 "buffer is (in effect) passed to the operating system and changes made by\n"
61 "the OS will be reflected in the contents of the buffer after the call has\n"
62 "returned. The return value is the integer returned by the ioctl system\n"
63 "call.\n"
64 "\n"
65 "If the argument is a mutable buffer and the mutable_flag argument is not\n"
66 "passed or is false, the behavior is as if a string had been passed. This\n"
67 "behavior will change in future releases of Python.\n"
68 "\n"
69 "If the argument is an immutable buffer (most likely a string) then a copy\n"
70 "of the buffer is passed to the operating system and the return value is a\n"
71 "string of the same length containing whatever the operating system put in\n"
72 "the buffer. The length of the arg buffer in this case is not allowed to\n"
73 "exceed 1024 bytes.\n"
74 "\n"
75 "If the arg given is an integer or if none is specified, the result value is\n"
76 "an integer corresponding to the return value of the ioctl call in the C\n"
77 "code.");
78
79 #define FCNTL_IOCTL_METHODDEF \
80 {"ioctl", (PyCFunction)fcntl_ioctl, METH_VARARGS, fcntl_ioctl__doc__},
81
82 static PyObject *
83 fcntl_ioctl_impl(PyModuleDef *module, int fd, unsigned int code, PyObject *ob_ar g, int mutate_arg);
84
85 static PyObject *
86 fcntl_ioctl(PyModuleDef *module, PyObject *args)
87 {
88 PyObject *return_value = NULL;
89 int fd;
90 unsigned int code;
91 PyObject *ob_arg = NULL;
92 int mutate_arg = 1;
93
94 if (!PyArg_ParseTuple(args,
95 "O&I|Oi:ioctl",
96 conv_descriptor, &fd, &code, &ob_arg, &mutate_arg))
97 goto exit;
98 return_value = fcntl_ioctl_impl(module, fd, code, ob_arg, mutate_arg);
99
100 exit:
101 return return_value;
102 }
103
104 PyDoc_STRVAR(fcntl_flock__doc__,
105 "flock($module, fd, code, /)\n"
106 "--\n"
107 "\n"
108 "Perform the lock operation op on file descriptor fd.\n"
109 "\n"
110 "See the Unix manual page for flock(2) for details (On some systems, this\n"
111 "function is emulated using fcntl()).");
112
113 #define FCNTL_FLOCK_METHODDEF \
114 {"flock", (PyCFunction)fcntl_flock, METH_VARARGS, fcntl_flock__doc__},
115
116 static PyObject *
117 fcntl_flock_impl(PyModuleDef *module, int fd, int code);
118
119 static PyObject *
120 fcntl_flock(PyModuleDef *module, PyObject *args)
121 {
122 PyObject *return_value = NULL;
123 int fd;
124 int code;
125
126 if (!PyArg_ParseTuple(args,
127 "O&i:flock",
128 conv_descriptor, &fd, &code))
129 goto exit;
130 return_value = fcntl_flock_impl(module, fd, code);
131
132 exit:
133 return return_value;
134 }
135
136 PyDoc_STRVAR(fcntl_lockf__doc__,
137 "lockf($module, fd, code, lenobj=None, startobj=None, whence=0, /)\n"
138 "--\n"
139 "\n"
140 "A wrapper around the fcntl() locking calls.\n"
141 "\n"
142 "fd is the file descriptor of the file to lock or unlock, and operation is one\n "
143 "of the following values:\n"
144 "\n"
145 " LOCK_UN - unlock\n"
146 " LOCK_SH - acquire a shared lock\n"
147 " LOCK_EX - acquire an exclusive lock\n"
148 "\n"
149 "When operation is LOCK_SH or LOCK_EX, it can also be bitwise ORed with\n"
150 "LOCK_NB to avoid blocking on lock acquisition. If LOCK_NB is used and the\n"
151 "lock cannot be acquired, an IOError will be raised and the exception will\n"
152 "have an errno attribute set to EACCES or EAGAIN (depending on the operating\n"
153 "system -- for portability, check for either value).\n"
154 "\n"
155 "length is the number of bytes to lock, with the default meaning to lock to\n"
156 "EOF. start is the byte offset, relative to whence, to that the lock\n"
157 "starts. whence is as with fileobj.seek(), specifically:\n"
158 "\n"
159 " 0 - relative to the start of the file (SEEK_SET)\n"
160 " 1 - relative to the current buffer position (SEEK_CUR)\n"
161 " 2 - relative to the end of the file (SEEK_END)");
162
163 #define FCNTL_LOCKF_METHODDEF \
164 {"lockf", (PyCFunction)fcntl_lockf, METH_VARARGS, fcntl_lockf__doc__},
165
166 static PyObject *
167 fcntl_lockf_impl(PyModuleDef *module, int fd, int code, PyObject *lenobj, PyObje ct *startobj, int whence);
168
169 static PyObject *
170 fcntl_lockf(PyModuleDef *module, PyObject *args)
171 {
172 PyObject *return_value = NULL;
173 int fd;
174 int code;
175 PyObject *lenobj = NULL;
176 PyObject *startobj = NULL;
177 int whence = 0;
178
179 if (!PyArg_ParseTuple(args,
180 "O&i|OOi:lockf",
181 conv_descriptor, &fd, &code, &lenobj, &startobj, &whence))
182 goto exit;
183 return_value = fcntl_lockf_impl(module, fd, code, lenobj, startobj, whence);
184
185 exit:
186 return return_value;
187 }
188 /*[clinic end generated code: output=fe67629a52a809fb input=a9049054013a1b77]*/
OLDNEW
« no previous file with comments | « no previous file | Modules/fcntlmodule.c » ('j') | Modules/fcntlmodule.c » ('J')

RSS Feeds Recent Issues | This issue
This is Rietveld 894c83f36cb7+