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/*
inotify_syscalls.c - native binding to inotify's syscalls
Copyright (c) 2005-2011 Sebastien Martini <seb@dbzteam.org>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#include <sys/syscall.h>
#include <Python.h>
#if (defined(__NR_inotify_init) && defined(__NR_inotify_add_watch) && \
defined(__NR_inotify_rm_watch))
/* System calls numbers obtained from included sys/syscall.h. */
#else
/* Otherwise rely on known values. */
# if defined(__i386__)
# define __NR_inotify_init 291
# define __NR_inotify_add_watch 292
# define __NR_inotify_rm_watch 293
# elif defined(__x86_64__)
# define __NR_inotify_init 253
# define __NR_inotify_add_watch 254
# define __NR_inotify_rm_watch 255
# elif (defined(__powerpc__) || defined(__powerpc64__))
# define __NR_inotify_init 275
# define __NR_inotify_add_watch 276
# define __NR_inotify_rm_watch 277
# elif defined (__ia64__)
# define __NR_inotify_init 1277
# define __NR_inotify_add_watch 1278
# define __NR_inotify_rm_watch 1279
# elif defined (__s390__)
# define __NR_inotify_init 284
# define __NR_inotify_add_watch 285
# define __NR_inotify_rm_watch 286
# elif defined (__alpha__)
# define __NR_inotify_init 444
# define __NR_inotify_add_watch 445
# define __NR_inotify_rm_watch 446
# elif defined (__sparc__) || defined (__sparc64__)
# define __NR_inotify_init 151
# define __NR_inotify_add_watch 152
# define __NR_inotify_rm_watch 156
# elif defined (__arm__)
# define __NR_inotify_init 316
# define __NR_inotify_add_watch 317
# define __NR_inotify_rm_watch 318
# elif defined (__sh__)
# define __NR_inotify_init 290
# define __NR_inotify_add_watch 291
# define __NR_inotify_rm_watch 292
# elif defined (__sh64__)
# define __NR_inotify_init 318
# define __NR_inotify_add_watch 319
# define __NR_inotify_rm_watch 320
# elif defined (__hppa__)
# define __NR_inotify_init 269
# define __NR_inotify_add_watch 270
# define __NR_inotify_rm_watch 271
# elif defined (__mips__)
# define _MIPS_SIM_ABI32 1
# define _MIPS_SIM_NABI32 2
# define _MIPS_SIM_ABI64 3
# if _MIPS_SIM == _MIPS_SIM_ABI32
# define __NR_Linux 4000
# define __NR_inotify_init (__NR_Linux + 284)
# define __NR_inotify_add_watch (__NR_Linux + 285)
# define __NR_inotify_rm_watch (__NR_Linux + 286)
# endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
# if _MIPS_SIM == _MIPS_SIM_ABI64
# define __NR_Linux 5000
# define __NR_inotify_init (__NR_Linux + 243)
# define __NR_inotify_add_watch (__NR_Linux + 244)
# define __NR_inotify_rm_watch (__NR_Linux + 245)
# endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
# if _MIPS_SIM == _MIPS_SIM_NABI32
# define __NR_Linux 6000
# define __NR_inotify_init (__NR_Linux + 247)
# define __NR_inotify_add_watch (__NR_Linux + 248)
# define __NR_inotify_rm_watch (__NR_Linux + 249)
# endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
# elif defined (__frv__)
# define __NR_inotify_init 291
# define __NR_inotify_add_watch 292
# define __NR_inotify_rm_watch 293
# elif defined (__parisc__)
# define __NR_Linux 0
# define __NR_inotify_init (__NR_Linux + 269)
# define __NR_inotify_add_watch (__NR_Linux + 270)
# define __NR_inotify_rm_watch (__NR_Linux + 271)
# elif defined (__mc68000__)
# define __NR_inotify_init 284
# define __NR_inotify_add_watch 285
# define __NR_inotify_rm_watch 286
# else
# error "Unsupported architecture!"
# endif
#endif
static PyObject* inotify_init(PyObject* self, PyObject* args) {
int result = -1;
if (!PyArg_ParseTuple(args, ""))
return NULL;
result = syscall(__NR_inotify_init);
if (result == -1) {
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
return Py_BuildValue("i", result);
}
static PyObject* inotify_add_watch(PyObject* self, PyObject* args) {
int fd = -1;
char* name = NULL;
unsigned int mask = 0;
int result = -1;
if(!PyArg_ParseTuple(args, "isI", &fd, &name, &mask))
return NULL;
result = syscall(__NR_inotify_add_watch, fd, name, mask);
if (result == -1) {
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
return Py_BuildValue("i", result);
}
static PyObject* inotify_rm_watch(PyObject* self, PyObject* args) {
int fd = -1;
unsigned int wd = 0;
int result = -1;
if(!PyArg_ParseTuple(args, "iI", &fd, &wd))
return NULL;
result = syscall(__NR_inotify_rm_watch, fd, wd);
if (result == -1) {
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
return Py_BuildValue("i", result);
}
static PyMethodDef inotify_syscalls_functions[] = {
{"inotify_init", inotify_init, METH_VARARGS, "inotify initialization"},
{"inotify_add_watch", inotify_add_watch, METH_VARARGS, "Add a new watch"},
{"inotify_rm_watch", inotify_rm_watch, METH_VARARGS, "Remove a watch"},
{0}
};
/* python 2 */
#if PY_VERSION_HEX < 0x03000000
void initinotify_syscalls(void) {
Py_InitModule3("inotify_syscalls", inotify_syscalls_functions,
"module inotify_syscalls");
}
#else /* python 3 */
static struct PyModuleDef inotify_syscallsmodule = {
{}, /* m_base */
"inotify_syscalls", /* m_name */
"module inotify_syscalls", /* m_doc */
0, /* m_size */
inotify_syscalls_functions, /* m_methods */
0, /* m_reload */
0, /* m_traverse */
0, /* m_clear */
0, /* m_free */
};
PyObject* PyInit_inotify_syscalls(void) {
return PyModule_Create(&inotify_syscallsmodule);
}
#endif /* PY_VERSION_HEX */
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