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Kaydet (Commit) 657e5ac1 authored tarafından Antoine Pitrou's avatar Antoine Pitrou
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Merged revisions 80796 via svnmerge from 

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r80796 | antoine.pitrou | 2010-05-05 18:27:30 +0200 (mer., 05 mai 2010) | 3 lines

  Untabify Modules/_io/fileio.c
........
üst 7fd622af
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Showing with 607 additions and 607 deletions
Modules/_fileio.c
Dosyayı görüntüle @ 657e5ac1
......@@ -28,13 +28,13 @@
#endif
typedef struct {
PyObject_HEAD
int fd;
unsigned int readable : 1;
unsigned int writable : 1;
signed int seekable : 2; /* -1 means unknown */
signed int closefd : 1;
PyObject *weakreflist;
PyObject_HEAD
int fd;
unsigned int readable : 1;
unsigned int writable : 1;
signed int seekable : 2; /* -1 means unknown */
signed int closefd : 1;
PyObject *weakreflist;
} PyFileIOObject;
PyTypeObject PyFileIO_Type;
......@@ -48,52 +48,52 @@ portable_lseek(int fd, PyObject *posobj, int whence);
static int
internal_close(PyFileIOObject *self)
{
int save_errno = 0;
if (self->fd >= 0) {
int fd = self->fd;
self->fd = -1;
Py_BEGIN_ALLOW_THREADS
if (close(fd) < 0)
save_errno = errno;
Py_END_ALLOW_THREADS
}
return save_errno;
int save_errno = 0;
if (self->fd >= 0) {
int fd = self->fd;
self->fd = -1;
Py_BEGIN_ALLOW_THREADS
if (close(fd) < 0)
save_errno = errno;
Py_END_ALLOW_THREADS
}
return save_errno;
}
static PyObject *
fileio_close(PyFileIOObject *self)
{
if (!self->closefd) {
self->fd = -1;
Py_RETURN_NONE;
}
errno = internal_close(self);
if (errno < 0) {
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
Py_RETURN_NONE;
if (!self->closefd) {
self->fd = -1;
Py_RETURN_NONE;
}
errno = internal_close(self);
if (errno < 0) {
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
Py_RETURN_NONE;
}
static PyObject *
fileio_new(PyTypeObject *type, PyObject *args, PyObject *kews)
{
PyFileIOObject *self;
PyFileIOObject *self;
assert(type != NULL && type->tp_alloc != NULL);
assert(type != NULL && type->tp_alloc != NULL);
self = (PyFileIOObject *) type->tp_alloc(type, 0);
if (self != NULL) {
self->fd = -1;
self->readable = 0;
self->writable = 0;
self->seekable = -1;
self->closefd = 1;
self->weakreflist = NULL;
}
self = (PyFileIOObject *) type->tp_alloc(type, 0);
if (self != NULL) {
self->fd = -1;
self->readable = 0;
self->writable = 0;
self->seekable = -1;
self->closefd = 1;
self->weakreflist = NULL;
}
return (PyObject *) self;
return (PyObject *) self;
}
/* On Unix, open will succeed for directories.
......@@ -104,321 +104,321 @@ static int
dircheck(PyFileIOObject* self, char *name)
{
#if defined(HAVE_FSTAT) && defined(S_IFDIR) && defined(EISDIR)
struct stat buf;
if (self->fd < 0)
return 0;
if (fstat(self->fd, &buf) == 0 && S_ISDIR(buf.st_mode)) {
char *msg = strerror(EISDIR);
PyObject *exc;
internal_close(self);
exc = PyObject_CallFunction(PyExc_IOError, "(iss)",
EISDIR, msg, name);
PyErr_SetObject(PyExc_IOError, exc);
Py_XDECREF(exc);
return -1;
}
struct stat buf;
if (self->fd < 0)
return 0;
if (fstat(self->fd, &buf) == 0 && S_ISDIR(buf.st_mode)) {
char *msg = strerror(EISDIR);
PyObject *exc;
internal_close(self);
exc = PyObject_CallFunction(PyExc_IOError, "(iss)",
EISDIR, msg, name);
PyErr_SetObject(PyExc_IOError, exc);
Py_XDECREF(exc);
return -1;
}
#endif
return 0;
return 0;
}
static int
check_fd(int fd)
{
#if defined(HAVE_FSTAT)
struct stat buf;
if (fstat(fd, &buf) < 0 && errno == EBADF) {
PyObject *exc;
char *msg = strerror(EBADF);
exc = PyObject_CallFunction(PyExc_OSError, "(is)",
EBADF, msg);
PyErr_SetObject(PyExc_OSError, exc);
Py_XDECREF(exc);
return -1;
}
struct stat buf;
if (fstat(fd, &buf) < 0 && errno == EBADF) {
PyObject *exc;
char *msg = strerror(EBADF);
exc = PyObject_CallFunction(PyExc_OSError, "(is)",
EBADF, msg);
PyErr_SetObject(PyExc_OSError, exc);
Py_XDECREF(exc);
return -1;
}
#endif
return 0;
return 0;
}
static int
fileio_init(PyObject *oself, PyObject *args, PyObject *kwds)
{
PyFileIOObject *self = (PyFileIOObject *) oself;
static char *kwlist[] = {"file", "mode", "closefd", NULL};
char *name = NULL;
char *mode = "r";
char *s;
PyFileIOObject *self = (PyFileIOObject *) oself;
static char *kwlist[] = {"file", "mode", "closefd", NULL};
char *name = NULL;
char *mode = "r";
char *s;
#ifdef MS_WINDOWS
Py_UNICODE *widename = NULL;
Py_UNICODE *widename = NULL;
#endif
int ret = 0;
int rwa = 0, plus = 0, append = 0;
int flags = 0;
int fd = -1;
int closefd = 1;
assert(PyFileIO_Check(oself));
if (self->fd >= 0) {
/* Have to close the existing file first. */
if (internal_close(self) < 0)
return -1;
}
if (PyArg_ParseTupleAndKeywords(args, kwds, "i|si:fileio",
kwlist, &fd, &mode, &closefd)) {
if (fd < 0) {
PyErr_SetString(PyExc_ValueError,
"Negative filedescriptor");
return -1;
}
if (check_fd(fd))
return -1;
}
else {
PyErr_Clear();
int ret = 0;
int rwa = 0, plus = 0, append = 0;
int flags = 0;
int fd = -1;
int closefd = 1;
assert(PyFileIO_Check(oself));
if (self->fd >= 0) {
/* Have to close the existing file first. */
if (internal_close(self) < 0)
return -1;
}
if (PyArg_ParseTupleAndKeywords(args, kwds, "i|si:fileio",
kwlist, &fd, &mode, &closefd)) {
if (fd < 0) {
PyErr_SetString(PyExc_ValueError,
"Negative filedescriptor");
return -1;
}
if (check_fd(fd))
return -1;
}
else {
PyErr_Clear();
#ifdef Py_WIN_WIDE_FILENAMES
if (GetVersion() < 0x80000000) {
/* On NT, so wide API available */
PyObject *po;
if (PyArg_ParseTupleAndKeywords(args, kwds, "U|si:fileio",
kwlist, &po, &mode, &closefd)
) {
widename = PyUnicode_AS_UNICODE(po);
} else {
/* Drop the argument parsing error as narrow
strings are also valid. */
PyErr_Clear();
}
}
if (widename == NULL)
if (GetVersion() < 0x80000000) {
/* On NT, so wide API available */
PyObject *po;
if (PyArg_ParseTupleAndKeywords(args, kwds, "U|si:fileio",
kwlist, &po, &mode, &closefd)
) {
widename = PyUnicode_AS_UNICODE(po);
} else {
/* Drop the argument parsing error as narrow
strings are also valid. */
PyErr_Clear();
}
}
if (widename == NULL)
#endif
{
if (!PyArg_ParseTupleAndKeywords(args, kwds, "et|si:fileio",
kwlist,
Py_FileSystemDefaultEncoding,
&name, &mode, &closefd))
return -1;
}
}
s = mode;
while (*s) {
switch (*s++) {
case 'r':
if (rwa) {
bad_mode:
PyErr_SetString(PyExc_ValueError,
"Must have exactly one of read/write/append mode");
goto error;
}
rwa = 1;
self->readable = 1;
break;
case 'w':
if (rwa)
goto bad_mode;
rwa = 1;
self->writable = 1;
flags |= O_CREAT | O_TRUNC;
break;
case 'a':
if (rwa)
goto bad_mode;
rwa = 1;
self->writable = 1;
flags |= O_CREAT;
append = 1;
break;
case 'b':
break;
case '+':
if (plus)
goto bad_mode;
self->readable = self->writable = 1;
plus = 1;
break;
default:
PyErr_Format(PyExc_ValueError,
"invalid mode: %.200s", mode);
goto error;
}
}
if (!rwa)
goto bad_mode;
if (self->readable && self->writable)
flags |= O_RDWR;
else if (self->readable)
flags |= O_RDONLY;
else
flags |= O_WRONLY;
{
if (!PyArg_ParseTupleAndKeywords(args, kwds, "et|si:fileio",
kwlist,
Py_FileSystemDefaultEncoding,
&name, &mode, &closefd))
return -1;
}
}
s = mode;
while (*s) {
switch (*s++) {
case 'r':
if (rwa) {
bad_mode:
PyErr_SetString(PyExc_ValueError,
"Must have exactly one of read/write/append mode");
goto error;
}
rwa = 1;
self->readable = 1;
break;
case 'w':
if (rwa)
goto bad_mode;
rwa = 1;
self->writable = 1;
flags |= O_CREAT | O_TRUNC;
break;
case 'a':
if (rwa)
goto bad_mode;
rwa = 1;
self->writable = 1;
flags |= O_CREAT;
append = 1;
break;
case 'b':
break;
case '+':
if (plus)
goto bad_mode;
self->readable = self->writable = 1;
plus = 1;
break;
default:
PyErr_Format(PyExc_ValueError,
"invalid mode: %.200s", mode);
goto error;
}
}
if (!rwa)
goto bad_mode;
if (self->readable && self->writable)
flags |= O_RDWR;
else if (self->readable)
flags |= O_RDONLY;
else
flags |= O_WRONLY;
#ifdef O_BINARY
flags |= O_BINARY;
flags |= O_BINARY;
#endif
#ifdef O_APPEND
if (append)
flags |= O_APPEND;
if (append)
flags |= O_APPEND;
#endif
if (fd >= 0) {
self->fd = fd;
self->closefd = closefd;
}
else {
self->closefd = 1;
if (!closefd) {
PyErr_SetString(PyExc_ValueError,
"Cannot use closefd=False with file name");
goto error;
}
Py_BEGIN_ALLOW_THREADS
errno = 0;
if (fd >= 0) {
self->fd = fd;
self->closefd = closefd;
}
else {
self->closefd = 1;
if (!closefd) {
PyErr_SetString(PyExc_ValueError,
"Cannot use closefd=False with file name");
goto error;
}
Py_BEGIN_ALLOW_THREADS
errno = 0;
#ifdef MS_WINDOWS
if (widename != NULL)
self->fd = _wopen(widename, flags, 0666);
else
if (widename != NULL)
self->fd = _wopen(widename, flags, 0666);
else
#endif
self->fd = open(name, flags, 0666);
Py_END_ALLOW_THREADS
if (self->fd < 0) {
self->fd = open(name, flags, 0666);
Py_END_ALLOW_THREADS
if (self->fd < 0) {
#ifdef MS_WINDOWS
if (widename != NULL)
PyErr_SetFromErrnoWithUnicodeFilename(PyExc_IOError, widename);
else
if (widename != NULL)
PyErr_SetFromErrnoWithUnicodeFilename(PyExc_IOError, widename);
else
#endif
PyErr_SetFromErrnoWithFilename(PyExc_IOError, name);
goto error;
}
if(dircheck(self, name) < 0)
goto error;
}
if (append) {
/* For consistent behaviour, we explicitly seek to the
end of file (otherwise, it might be done only on the
first write()). */
PyObject *pos = portable_lseek(self->fd, NULL, 2);
if (pos == NULL)
goto error;
Py_DECREF(pos);
}
goto done;
PyErr_SetFromErrnoWithFilename(PyExc_IOError, name);
goto error;
}
if(dircheck(self, name) < 0)
goto error;
}
if (append) {
/* For consistent behaviour, we explicitly seek to the
end of file (otherwise, it might be done only on the
first write()). */
PyObject *pos = portable_lseek(self->fd, NULL, 2);
if (pos == NULL)
goto error;
Py_DECREF(pos);
}
goto done;
error:
ret = -1;
ret = -1;
done:
PyMem_Free(name);
return ret;
PyMem_Free(name);
return ret;
}
static void
fileio_dealloc(PyFileIOObject *self)
{
if (self->weakreflist != NULL)
PyObject_ClearWeakRefs((PyObject *) self);
if (self->fd >= 0 && self->closefd) {
errno = internal_close(self);
if (errno < 0) {
PySys_WriteStderr("close failed: [Errno %d] %s\n",
errno, strerror(errno));
}
}
Py_TYPE(self)->tp_free((PyObject *)self);
if (self->weakreflist != NULL)
PyObject_ClearWeakRefs((PyObject *) self);
if (self->fd >= 0 && self->closefd) {
errno = internal_close(self);
if (errno < 0) {
PySys_WriteStderr("close failed: [Errno %d] %s\n",
errno, strerror(errno));
}
}
Py_TYPE(self)->tp_free((PyObject *)self);
}
static PyObject *
err_closed(void)
{
PyErr_SetString(PyExc_ValueError, "I/O operation on closed file");
return NULL;
PyErr_SetString(PyExc_ValueError, "I/O operation on closed file");
return NULL;
}
static PyObject *
err_mode(char *action)
{
PyErr_Format(PyExc_ValueError, "File not open for %s", action);
return NULL;
PyErr_Format(PyExc_ValueError, "File not open for %s", action);
return NULL;
}
static PyObject *
fileio_fileno(PyFileIOObject *self)
{
if (self->fd < 0)
return err_closed();
return PyInt_FromLong((long) self->fd);
if (self->fd < 0)
return err_closed();
return PyInt_FromLong((long) self->fd);
}
static PyObject *
fileio_readable(PyFileIOObject *self)
{
if (self->fd < 0)
return err_closed();
return PyBool_FromLong((long) self->readable);
if (self->fd < 0)
return err_closed();
return PyBool_FromLong((long) self->readable);
}
static PyObject *
fileio_writable(PyFileIOObject *self)
{
if (self->fd < 0)
return err_closed();
return PyBool_FromLong((long) self->writable);
if (self->fd < 0)
return err_closed();
return PyBool_FromLong((long) self->writable);
}
static PyObject *
fileio_seekable(PyFileIOObject *self)
{
if (self->fd < 0)
return err_closed();
if (self->seekable < 0) {
int ret;
Py_BEGIN_ALLOW_THREADS
ret = lseek(self->fd, 0, SEEK_CUR);
Py_END_ALLOW_THREADS
if (ret < 0)
self->seekable = 0;
else
self->seekable = 1;
}
return PyBool_FromLong((long) self->seekable);
if (self->fd < 0)
return err_closed();
if (self->seekable < 0) {
int ret;
Py_BEGIN_ALLOW_THREADS
ret = lseek(self->fd, 0, SEEK_CUR);
Py_END_ALLOW_THREADS
if (ret < 0)
self->seekable = 0;
else
self->seekable = 1;
}
return PyBool_FromLong((long) self->seekable);
}
static PyObject *
fileio_readinto(PyFileIOObject *self, PyObject *args)
{
Py_buffer pbuf;
Py_ssize_t n;
if (self->fd < 0)
return err_closed();
if (!self->readable)
return err_mode("reading");
if (!PyArg_ParseTuple(args, "w*", &pbuf))
return NULL;
Py_BEGIN_ALLOW_THREADS
errno = 0;
n = read(self->fd, pbuf.buf, pbuf.len);
Py_END_ALLOW_THREADS
PyBuffer_Release(&pbuf);
if (n < 0) {
if (errno == EAGAIN)
Py_RETURN_NONE;
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
return PyLong_FromSsize_t(n);
Py_buffer pbuf;
Py_ssize_t n;
if (self->fd < 0)
return err_closed();
if (!self->readable)
return err_mode("reading");
if (!PyArg_ParseTuple(args, "w*", &pbuf))
return NULL;
Py_BEGIN_ALLOW_THREADS
errno = 0;
n = read(self->fd, pbuf.buf, pbuf.len);
Py_END_ALLOW_THREADS
PyBuffer_Release(&pbuf);
if (n < 0) {
if (errno == EAGAIN)
Py_RETURN_NONE;
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
return PyLong_FromSsize_t(n);
}
#define DEFAULT_BUFFER_SIZE (8*1024)
......@@ -426,134 +426,134 @@ fileio_readinto(PyFileIOObject *self, PyObject *args)
static PyObject *
fileio_readall(PyFileIOObject *self)
{
PyObject *result;
Py_ssize_t total = 0;
int n;
result = PyString_FromStringAndSize(NULL, DEFAULT_BUFFER_SIZE);
if (result == NULL)
return NULL;
while (1) {
Py_ssize_t newsize = total + DEFAULT_BUFFER_SIZE;
if (PyString_GET_SIZE(result) < newsize) {
if (_PyString_Resize(&result, newsize) < 0) {
if (total == 0) {
Py_DECREF(result);
return NULL;
}
PyErr_Clear();
break;
}
}
Py_BEGIN_ALLOW_THREADS
errno = 0;
n = read(self->fd,
PyString_AS_STRING(result) + total,
newsize - total);
Py_END_ALLOW_THREADS
if (n == 0)
break;
if (n < 0) {
if (total > 0)
break;
if (errno == EAGAIN) {
Py_DECREF(result);
Py_RETURN_NONE;
}
Py_DECREF(result);
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
total += n;
}
if (PyString_GET_SIZE(result) > total) {
if (_PyString_Resize(&result, total) < 0) {
/* This should never happen, but just in case */
Py_DECREF(result);
return NULL;
}
}
return result;
PyObject *result;
Py_ssize_t total = 0;
int n;
result = PyString_FromStringAndSize(NULL, DEFAULT_BUFFER_SIZE);
if (result == NULL)
return NULL;
while (1) {
Py_ssize_t newsize = total + DEFAULT_BUFFER_SIZE;
if (PyString_GET_SIZE(result) < newsize) {
if (_PyString_Resize(&result, newsize) < 0) {
if (total == 0) {
Py_DECREF(result);
return NULL;
}
PyErr_Clear();
break;
}
}
Py_BEGIN_ALLOW_THREADS
errno = 0;
n = read(self->fd,
PyString_AS_STRING(result) + total,
newsize - total);
Py_END_ALLOW_THREADS
if (n == 0)
break;
if (n < 0) {
if (total > 0)
break;
if (errno == EAGAIN) {
Py_DECREF(result);
Py_RETURN_NONE;
}
Py_DECREF(result);
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
total += n;
}
if (PyString_GET_SIZE(result) > total) {
if (_PyString_Resize(&result, total) < 0) {
/* This should never happen, but just in case */
Py_DECREF(result);
return NULL;
}
}
return result;
}
static PyObject *
fileio_read(PyFileIOObject *self, PyObject *args)
{
char *ptr;
Py_ssize_t n;
Py_ssize_t size = -1;
PyObject *bytes;
if (self->fd < 0)
return err_closed();
if (!self->readable)
return err_mode("reading");
if (!PyArg_ParseTuple(args, "|n", &size))
return NULL;
if (size < 0) {
return fileio_readall(self);
}
bytes = PyString_FromStringAndSize(NULL, size);
if (bytes == NULL)
return NULL;
ptr = PyString_AS_STRING(bytes);
Py_BEGIN_ALLOW_THREADS
errno = 0;
n = read(self->fd, ptr, size);
Py_END_ALLOW_THREADS
if (n < 0) {
if (errno == EAGAIN)
Py_RETURN_NONE;
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
if (n != size) {
if (_PyString_Resize(&bytes, n) < 0) {
Py_DECREF(bytes);
return NULL;
}
}
return (PyObject *) bytes;
char *ptr;
Py_ssize_t n;
Py_ssize_t size = -1;
PyObject *bytes;
if (self->fd < 0)
return err_closed();
if (!self->readable)
return err_mode("reading");
if (!PyArg_ParseTuple(args, "|n", &size))
return NULL;
if (size < 0) {
return fileio_readall(self);
}
bytes = PyString_FromStringAndSize(NULL, size);
if (bytes == NULL)
return NULL;
ptr = PyString_AS_STRING(bytes);
Py_BEGIN_ALLOW_THREADS
errno = 0;
n = read(self->fd, ptr, size);
Py_END_ALLOW_THREADS
if (n < 0) {
if (errno == EAGAIN)
Py_RETURN_NONE;
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
if (n != size) {
if (_PyString_Resize(&bytes, n) < 0) {
Py_DECREF(bytes);
return NULL;
}
}
return (PyObject *) bytes;
}
static PyObject *
fileio_write(PyFileIOObject *self, PyObject *args)
{
Py_buffer pbuf;
Py_ssize_t n;
Py_buffer pbuf;
Py_ssize_t n;
if (self->fd < 0)
return err_closed();
if (!self->writable)
return err_mode("writing");
if (self->fd < 0)
return err_closed();
if (!self->writable)
return err_mode("writing");
if (!PyArg_ParseTuple(args, "s*", &pbuf))
return NULL;
if (!PyArg_ParseTuple(args, "s*", &pbuf))
return NULL;
Py_BEGIN_ALLOW_THREADS
errno = 0;
n = write(self->fd, pbuf.buf, pbuf.len);
Py_END_ALLOW_THREADS
Py_BEGIN_ALLOW_THREADS
errno = 0;
n = write(self->fd, pbuf.buf, pbuf.len);
Py_END_ALLOW_THREADS
PyBuffer_Release(&pbuf);
PyBuffer_Release(&pbuf);
if (n < 0) {
if (errno == EAGAIN)
Py_RETURN_NONE;
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
if (n < 0) {
if (errno == EAGAIN)
Py_RETURN_NONE;
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
return PyLong_FromSsize_t(n);
return PyLong_FromSsize_t(n);
}
/* XXX Windows support below is likely incomplete */
......@@ -568,217 +568,217 @@ typedef off_t Py_off_t;
static PyObject *
portable_lseek(int fd, PyObject *posobj, int whence)
{
Py_off_t pos, res;
Py_off_t pos, res;
#ifdef SEEK_SET
/* Turn 0, 1, 2 into SEEK_{SET,CUR,END} */
switch (whence) {
/* Turn 0, 1, 2 into SEEK_{SET,CUR,END} */
switch (whence) {
#if SEEK_SET != 0
case 0: whence = SEEK_SET; break;
case 0: whence = SEEK_SET; break;
#endif
#if SEEK_CUR != 1
case 1: whence = SEEK_CUR; break;
case 1: whence = SEEK_CUR; break;
#endif
#if SEEL_END != 2
case 2: whence = SEEK_END; break;
case 2: whence = SEEK_END; break;
#endif
}
}
#endif /* SEEK_SET */
if (posobj == NULL)
pos = 0;
else {
if(PyFloat_Check(posobj)) {
PyErr_SetString(PyExc_TypeError, "an integer is required");
return NULL;
}
if (posobj == NULL)
pos = 0;
else {
if(PyFloat_Check(posobj)) {
PyErr_SetString(PyExc_TypeError, "an integer is required");
return NULL;
}
#if defined(HAVE_LARGEFILE_SUPPORT)
pos = PyLong_AsLongLong(posobj);
pos = PyLong_AsLongLong(posobj);
#else
pos = PyLong_AsLong(posobj);
pos = PyLong_AsLong(posobj);
#endif
if (PyErr_Occurred())
return NULL;
}
if (PyErr_Occurred())
return NULL;
}
Py_BEGIN_ALLOW_THREADS
Py_BEGIN_ALLOW_THREADS
#if defined(MS_WIN64) || defined(MS_WINDOWS)
res = _lseeki64(fd, pos, whence);
res = _lseeki64(fd, pos, whence);
#else
res = lseek(fd, pos, whence);
res = lseek(fd, pos, whence);
#endif
Py_END_ALLOW_THREADS
if (res < 0)
return PyErr_SetFromErrno(PyExc_IOError);
Py_END_ALLOW_THREADS
if (res < 0)
return PyErr_SetFromErrno(PyExc_IOError);
#if defined(HAVE_LARGEFILE_SUPPORT)
return PyLong_FromLongLong(res);
return PyLong_FromLongLong(res);
#else
return PyLong_FromLong(res);
return PyLong_FromLong(res);
#endif
}
static PyObject *
fileio_seek(PyFileIOObject *self, PyObject *args)
{
PyObject *posobj;
int whence = 0;
PyObject *posobj;
int whence = 0;
if (self->fd < 0)
return err_closed();
if (self->fd < 0)
return err_closed();
if (!PyArg_ParseTuple(args, "O|i", &posobj, &whence))
return NULL;
if (!PyArg_ParseTuple(args, "O|i", &posobj, &whence))
return NULL;
return portable_lseek(self->fd, posobj, whence);
return portable_lseek(self->fd, posobj, whence);
}
static PyObject *
fileio_tell(PyFileIOObject *self, PyObject *args)
{
if (self->fd < 0)
return err_closed();
if (self->fd < 0)
return err_closed();
return portable_lseek(self->fd, NULL, 1);
return portable_lseek(self->fd, NULL, 1);
}
#ifdef HAVE_FTRUNCATE
static PyObject *
fileio_truncate(PyFileIOObject *self, PyObject *args)
{
PyObject *posobj = NULL; /* the new size wanted by the user */
PyObject *posobj = NULL; /* the new size wanted by the user */
#ifndef MS_WINDOWS
Py_off_t pos;
Py_off_t pos;
#endif
int ret;
int fd;
fd = self->fd;
if (fd < 0)
return err_closed();
if (!self->writable)
return err_mode("writing");
if (!PyArg_ParseTuple(args, "|O", &posobj))
return NULL;
if (posobj == Py_None || posobj == NULL) {
/* Get the current position. */
posobj = portable_lseek(fd, NULL, 1);
if (posobj == NULL)
return NULL;
}
else {
Py_INCREF(posobj);
}
int ret;
int fd;
fd = self->fd;
if (fd < 0)
return err_closed();
if (!self->writable)
return err_mode("writing");
if (!PyArg_ParseTuple(args, "|O", &posobj))
return NULL;
if (posobj == Py_None || posobj == NULL) {
/* Get the current position. */
posobj = portable_lseek(fd, NULL, 1);
if (posobj == NULL)
return NULL;
}
else {
Py_INCREF(posobj);
}
#ifdef MS_WINDOWS
/* MS _chsize doesn't work if newsize doesn't fit in 32 bits,
so don't even try using it. */
{
PyObject *oldposobj, *tempposobj;
HANDLE hFile;
/* we save the file pointer position */
oldposobj = portable_lseek(fd, NULL, 1);
if (oldposobj == NULL) {
Py_DECREF(posobj);
return NULL;
}
/* we then move to the truncation position */
tempposobj = portable_lseek(fd, posobj, 0);
if (tempposobj == NULL) {
Py_DECREF(oldposobj);
Py_DECREF(posobj);
return NULL;
}
Py_DECREF(tempposobj);
/* Truncate. Note that this may grow the file! */
Py_BEGIN_ALLOW_THREADS
errno = 0;
hFile = (HANDLE)_get_osfhandle(fd);
ret = hFile == (HANDLE)-1; /* testing for INVALID_HANDLE value */
if (ret == 0) {
ret = SetEndOfFile(hFile) == 0;
if (ret)
errno = EACCES;
}
Py_END_ALLOW_THREADS
/* we restore the file pointer position in any case */
tempposobj = portable_lseek(fd, oldposobj, 0);
Py_DECREF(oldposobj);
if (tempposobj == NULL) {
Py_DECREF(posobj);
return NULL;
}
Py_DECREF(tempposobj);
}
/* MS _chsize doesn't work if newsize doesn't fit in 32 bits,
so don't even try using it. */
{
PyObject *oldposobj, *tempposobj;
HANDLE hFile;
/* we save the file pointer position */
oldposobj = portable_lseek(fd, NULL, 1);
if (oldposobj == NULL) {
Py_DECREF(posobj);
return NULL;
}
/* we then move to the truncation position */
tempposobj = portable_lseek(fd, posobj, 0);
if (tempposobj == NULL) {
Py_DECREF(oldposobj);
Py_DECREF(posobj);
return NULL;
}
Py_DECREF(tempposobj);
/* Truncate. Note that this may grow the file! */
Py_BEGIN_ALLOW_THREADS
errno = 0;
hFile = (HANDLE)_get_osfhandle(fd);
ret = hFile == (HANDLE)-1; /* testing for INVALID_HANDLE value */
if (ret == 0) {
ret = SetEndOfFile(hFile) == 0;
if (ret)
errno = EACCES;
}
Py_END_ALLOW_THREADS
/* we restore the file pointer position in any case */
tempposobj = portable_lseek(fd, oldposobj, 0);
Py_DECREF(oldposobj);
if (tempposobj == NULL) {
Py_DECREF(posobj);
return NULL;
}
Py_DECREF(tempposobj);
}
#else
#if defined(HAVE_LARGEFILE_SUPPORT)
pos = PyLong_AsLongLong(posobj);
pos = PyLong_AsLongLong(posobj);
#else
pos = PyLong_AsLong(posobj);
pos = PyLong_AsLong(posobj);
#endif
if (PyErr_Occurred()){
Py_DECREF(posobj);
return NULL;
}
if (PyErr_Occurred()){
Py_DECREF(posobj);
return NULL;
}
Py_BEGIN_ALLOW_THREADS
errno = 0;
ret = ftruncate(fd, pos);
Py_END_ALLOW_THREADS
Py_BEGIN_ALLOW_THREADS
errno = 0;
ret = ftruncate(fd, pos);
Py_END_ALLOW_THREADS
#endif /* !MS_WINDOWS */
if (ret != 0) {
Py_DECREF(posobj);
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
if (ret != 0) {
Py_DECREF(posobj);
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
return posobj;
return posobj;
}
#endif /* HAVE_FTRUNCATE */
static char *
mode_string(PyFileIOObject *self)
{
if (self->readable) {
if (self->writable)
return "rb+";
else
return "rb";
}
else
return "wb";
if (self->readable) {
if (self->writable)
return "rb+";
else
return "rb";
}
else
return "wb";
}
static PyObject *
fileio_repr(PyFileIOObject *self)
{
if (self->fd < 0)
return PyString_FromFormat("_fileio._FileIO(-1)");
if (self->fd < 0)
return PyString_FromFormat("_fileio._FileIO(-1)");
return PyString_FromFormat("_fileio._FileIO(%d, '%s')",
self->fd, mode_string(self));
return PyString_FromFormat("_fileio._FileIO(%d, '%s')",
self->fd, mode_string(self));
}
static PyObject *
fileio_isatty(PyFileIOObject *self)
{
long res;
if (self->fd < 0)
return err_closed();
Py_BEGIN_ALLOW_THREADS
res = isatty(self->fd);
Py_END_ALLOW_THREADS
return PyBool_FromLong(res);
long res;
if (self->fd < 0)
return err_closed();
Py_BEGIN_ALLOW_THREADS
res = isatty(self->fd);
Py_END_ALLOW_THREADS
return PyBool_FromLong(res);
}
......@@ -786,7 +786,7 @@ PyDoc_STRVAR(fileio_doc,
"file(name: str[, mode: str]) -> file IO object\n"
"\n"
"Open a file. The mode can be 'r', 'w' or 'a' for reading (default),\n"
"writing or appending. The file will be created if it doesn't exist\n"
"writing or appending. The file will be created if it doesn't exist\n"
"when opened for writing or appending; it will be truncated when\n"
"opened for writing. Add a '+' to the mode to allow simultaneous\n"
"reading and writing.");
......@@ -828,14 +828,14 @@ PyDoc_STRVAR(seek_doc,
#ifdef HAVE_FTRUNCATE
PyDoc_STRVAR(truncate_doc,
"truncate([size: int]) -> None. Truncate the file to at most size bytes.\n"
"truncate([size: int]) -> None. Truncate the file to at most size bytes.\n"
"\n"
"Size defaults to the current file position, as returned by tell()."
"The current file position is changed to the value of size.");
#endif
PyDoc_STRVAR(tell_doc,
"tell() -> int. Current file position");
"tell() -> int. Current file position");
PyDoc_STRVAR(readinto_doc,
"readinto() -> Undocumented. Don't use this; it may go away.");
......@@ -859,22 +859,22 @@ PyDoc_STRVAR(writable_doc,
"writable() -> bool. True if file was opened in a write mode.");
static PyMethodDef fileio_methods[] = {
{"read", (PyCFunction)fileio_read, METH_VARARGS, read_doc},
{"readall", (PyCFunction)fileio_readall, METH_NOARGS, readall_doc},
{"readinto", (PyCFunction)fileio_readinto, METH_VARARGS, readinto_doc},
{"write", (PyCFunction)fileio_write, METH_VARARGS, write_doc},
{"seek", (PyCFunction)fileio_seek, METH_VARARGS, seek_doc},
{"tell", (PyCFunction)fileio_tell, METH_VARARGS, tell_doc},
{"read", (PyCFunction)fileio_read, METH_VARARGS, read_doc},
{"readall", (PyCFunction)fileio_readall, METH_NOARGS, readall_doc},
{"readinto", (PyCFunction)fileio_readinto, METH_VARARGS, readinto_doc},
{"write", (PyCFunction)fileio_write, METH_VARARGS, write_doc},
{"seek", (PyCFunction)fileio_seek, METH_VARARGS, seek_doc},
{"tell", (PyCFunction)fileio_tell, METH_VARARGS, tell_doc},
#ifdef HAVE_FTRUNCATE
{"truncate", (PyCFunction)fileio_truncate, METH_VARARGS, truncate_doc},
{"truncate", (PyCFunction)fileio_truncate, METH_VARARGS, truncate_doc},
#endif
{"close", (PyCFunction)fileio_close, METH_NOARGS, close_doc},
{"seekable", (PyCFunction)fileio_seekable, METH_NOARGS, seekable_doc},
{"readable", (PyCFunction)fileio_readable, METH_NOARGS, readable_doc},
{"writable", (PyCFunction)fileio_writable, METH_NOARGS, writable_doc},
{"fileno", (PyCFunction)fileio_fileno, METH_NOARGS, fileno_doc},
{"isatty", (PyCFunction)fileio_isatty, METH_NOARGS, isatty_doc},
{NULL, NULL} /* sentinel */
{"close", (PyCFunction)fileio_close, METH_NOARGS, close_doc},
{"seekable", (PyCFunction)fileio_seekable, METH_NOARGS, seekable_doc},
{"readable", (PyCFunction)fileio_readable, METH_NOARGS, readable_doc},
{"writable", (PyCFunction)fileio_writable, METH_NOARGS, writable_doc},
{"fileno", (PyCFunction)fileio_fileno, METH_NOARGS, fileno_doc},
{"isatty", (PyCFunction)fileio_isatty, METH_NOARGS, isatty_doc},
{NULL, NULL} /* sentinel */
};
/* 'closed' and 'mode' are attributes for backwards compatibility reasons. */
......@@ -882,86 +882,86 @@ static PyMethodDef fileio_methods[] = {
static PyObject *
get_closed(PyFileIOObject *self, void *closure)
{
return PyBool_FromLong((long)(self->fd < 0));
return PyBool_FromLong((long)(self->fd < 0));
}
static PyObject *
get_closefd(PyFileIOObject *self, void *closure)
{
return PyBool_FromLong((long)(self->closefd));
return PyBool_FromLong((long)(self->closefd));
}
static PyObject *
get_mode(PyFileIOObject *self, void *closure)
{
return PyString_FromString(mode_string(self));
return PyString_FromString(mode_string(self));
}
static PyGetSetDef fileio_getsetlist[] = {
{"closed", (getter)get_closed, NULL, "True if the file is closed"},
{"closefd", (getter)get_closefd, NULL,
"True if the file descriptor will be closed"},
{"mode", (getter)get_mode, NULL, "String giving the file mode"},
{0},
{"closed", (getter)get_closed, NULL, "True if the file is closed"},
{"closefd", (getter)get_closefd, NULL,
"True if the file descriptor will be closed"},
{"mode", (getter)get_mode, NULL, "String giving the file mode"},
{0},
};
PyTypeObject PyFileIO_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_FileIO",
sizeof(PyFileIOObject),
0,
(destructor)fileio_dealloc, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_compare */
(reprfunc)fileio_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
PyObject_GenericGetAttr, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
fileio_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
offsetof(PyFileIOObject, weakreflist), /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
fileio_methods, /* tp_methods */
0, /* tp_members */
fileio_getsetlist, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
fileio_init, /* tp_init */
PyType_GenericAlloc, /* tp_alloc */
fileio_new, /* tp_new */
PyObject_Del, /* tp_free */
PyVarObject_HEAD_INIT(NULL, 0)
"_FileIO",
sizeof(PyFileIOObject),
0,
(destructor)fileio_dealloc, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_compare */
(reprfunc)fileio_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
PyObject_GenericGetAttr, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
fileio_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
offsetof(PyFileIOObject, weakreflist), /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
fileio_methods, /* tp_methods */
0, /* tp_members */
fileio_getsetlist, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
fileio_init, /* tp_init */
PyType_GenericAlloc, /* tp_alloc */
fileio_new, /* tp_new */
PyObject_Del, /* tp_free */
};
static PyMethodDef module_methods[] = {
{NULL, NULL}
{NULL, NULL}
};
PyMODINIT_FUNC
init_fileio(void)
{
PyObject *m; /* a module object */
m = Py_InitModule3("_fileio", module_methods,
"Fast implementation of io.FileIO.");
if (m == NULL)
return;
if (PyType_Ready(&PyFileIO_Type) < 0)
return;
Py_INCREF(&PyFileIO_Type);
PyModule_AddObject(m, "_FileIO", (PyObject *) &PyFileIO_Type);
PyObject *m; /* a module object */
m = Py_InitModule3("_fileio", module_methods,
"Fast implementation of io.FileIO.");
if (m == NULL)
return;
if (PyType_Ready(&PyFileIO_Type) < 0)
return;
Py_INCREF(&PyFileIO_Type);
PyModule_AddObject(m, "_FileIO", (PyObject *) &PyFileIO_Type);
}
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