Enable os.fsync() for Windows, mapping it to MS's _commit() there. The
docs here are best-guess: the MS docs I could find weren't clear, and some even claimed _commit() has no effect on Win32 systems (which is easily shown to be false just by trying it).
This commit is contained in:
Tim Peters
parent
9a9c436036
commit
11b2306960
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@ -449,7 +449,13 @@ Availability: \UNIX.
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\begin{funcdesc}{fsync}{fd}
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Force write of file with filedescriptor \var{fd} to disk.
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Availability: \UNIX.
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On Windows this calls the MS \cfunction{_commit()} function. If you're
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starting with a Python file object \var{f}, first do
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\code{\var{f}.flush()}, and then do \code{os.fsync(\var{f}.fileno()},
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to ensure that all internal buffers associated with \var{f} are written
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to disk.
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Availability: \UNIX, and Windows starting in 2.3.
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\end{funcdesc}
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\begin{funcdesc}{ftruncate}{fd, length}
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@ -921,7 +927,7 @@ order
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\member{st_atime},
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\member{st_mtime},
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\member{st_ctime}.
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More items may be added at the end by some implementations.
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More items may be added at the end by some implementations.
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The standard module \refmodule{stat}\refstmodindex{stat} defines
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functions and constants that are useful for extracting information
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from a \ctype{stat} structure.
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@ -232,6 +232,9 @@ Tests
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Windows
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-------
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- os.fsync() now exists on Windows, and calls the Microsoft _commit()
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function.
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- New function winsound.MessageBeep() wraps the Win32 API
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MessageBeep().
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@ -112,6 +112,8 @@ corresponding Unix manual entries for more information on calls.");
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#define HAVE_POPEN 1
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#define HAVE_SYSTEM 1
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#define HAVE_CWAIT 1
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#define HAVE_FSYNC 1
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#define fsync _commit
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#else
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#if defined(PYOS_OS2) && defined(PYCC_GCC) || defined(__VMS)
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/* Everything needed is defined in PC/os2emx/pyconfig.h or vms/pyconfig.h */
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@ -301,7 +303,7 @@ extern int lstat(const char *, struct stat *);
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# define STRUCT_STAT struct stat
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#endif
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#if defined(MAJOR_IN_MKDEV)
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#if defined(MAJOR_IN_MKDEV)
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#include <sys/mkdev.h>
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#else
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#if defined(MAJOR_IN_SYSMACROS)
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@ -325,7 +327,7 @@ extern char **environ;
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#if defined(__VMS)
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/* add some values to provide a similar environment like POSIX */
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static
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static
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void
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vms_add_posix_env(PyObject *d)
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{
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@ -516,8 +518,8 @@ static PyObject *_PyUnicode_FromFileSystemEncodedObject(register PyObject *obj)
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return PyUnicode_FromUnicode(PyUnicode_AS_UNICODE(obj),
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PyUnicode_GET_SIZE(obj));
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}
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return PyUnicode_FromEncodedObject(obj,
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Py_FileSystemDefaultEncoding,
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return PyUnicode_FromEncodedObject(obj,
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Py_FileSystemDefaultEncoding,
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"strict");
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}
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@ -621,19 +623,19 @@ posix_fildes(PyObject *fdobj, int (*func)(int))
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}
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#ifdef Py_WIN_WIDE_FILENAMES
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static int
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static int
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unicode_file_names(void)
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{
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static int canusewide = -1;
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if (canusewide == -1) {
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/* As per doc for ::GetVersion(), this is the correct test for
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/* As per doc for ::GetVersion(), this is the correct test for
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the Windows NT family. */
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canusewide = (GetVersion() < 0x80000000) ? 1 : 0;
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}
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return canusewide;
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}
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#endif
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static PyObject *
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posix_1str(PyObject *args, char *format, int (*func)(const char*),
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char *wformat, int (*wfunc)(const Py_UNICODE*))
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@ -678,7 +680,7 @@ posix_1str(PyObject *args, char *format, int (*func)(const char*),
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}
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static PyObject *
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posix_2str(PyObject *args,
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posix_2str(PyObject *args,
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char *format,
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int (*func)(const char *, const char *),
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char *wformat,
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@ -971,7 +973,7 @@ _pystat_fromstructstat(STRUCT_STAT st)
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}
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static PyObject *
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posix_do_stat(PyObject *self, PyObject *args,
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posix_do_stat(PyObject *self, PyObject *args,
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char *format,
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#ifdef __VMS
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int (*statfunc)(const char *, STRUCT_STAT *, ...),
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@ -1181,7 +1183,7 @@ posix_chdir(PyObject *self, PyObject *args)
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#elif defined(PYOS_OS2) && defined(PYCC_GCC)
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return posix_1str(args, "et:chdir", _chdir2, NULL, NULL);
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#elif defined(__VMS)
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return posix_1str(args, "et:chdir", (int (*)(const char *))chdir,
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return posix_1str(args, "et:chdir", (int (*)(const char *))chdir,
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NULL, NULL);
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#else
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return posix_1str(args, "et:chdir", chdir, NULL, NULL);
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@ -1314,7 +1316,7 @@ posix_lchown(PyObject *self, PyObject *args)
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Py_BEGIN_ALLOW_THREADS
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res = lchown(path, (uid_t) uid, (gid_t) gid);
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Py_END_ALLOW_THREADS
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if (res < 0)
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if (res < 0)
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return posix_error_with_allocated_filename(path);
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PyMem_Free(path);
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Py_INCREF(Py_None);
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@ -1646,7 +1648,7 @@ posix_listdir(PyObject *self, PyObject *args)
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PyObject *w;
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w = PyUnicode_FromEncodedObject(v,
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Py_FileSystemDefaultEncoding,
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Py_FileSystemDefaultEncoding,
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"strict");
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if (w != NULL) {
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Py_DECREF(v);
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@ -1692,7 +1694,7 @@ posix__getfullpathname(PyObject *self, PyObject *args)
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if (PyArg_ParseTuple(args, "U|:_getfullpathname", &po)) {
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Py_UNICODE woutbuf[MAX_PATH*2];
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Py_UNICODE *wtemp;
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if (!GetFullPathNameW(PyUnicode_AS_UNICODE(po),
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if (!GetFullPathNameW(PyUnicode_AS_UNICODE(po),
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sizeof(woutbuf)/sizeof(woutbuf[0]),
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woutbuf, &wtemp))
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return win32_error("GetFullPathName", "");
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@ -3185,7 +3187,7 @@ os2emx_popen3(PyObject *self, PyObject *args)
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/*
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* Variation on os2emx.popen2
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*
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* The result of this function is 2 pipes - the processes stdin,
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* The result of this function is 2 pipes - the processes stdin,
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* and stdout+stderr combined as a single pipe.
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*/
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@ -3519,7 +3521,7 @@ _PyPopen(char *cmdstring, int mode, int n, int bufsize)
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}
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}
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}
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/*
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* Clean up our localized references for the dictionary keys
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* and value since PyDict_SetItem will Py_INCREF any copies
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@ -3936,7 +3938,7 @@ _PyPopenCreateProcess(char *cmdstring,
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s3,
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cmdstring);
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/* Not passing CREATE_NEW_CONSOLE has been known to
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cause random failures on win9x. Specifically a
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cause random failures on win9x. Specifically a
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dialog:
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"Your program accessed mem currently in use at xxx"
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and a hopeful warning about the stability of your
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