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Windows: Fix a long standing bug in the device eject code that for some reason only manifested in 0.9.5. Fixes #1075782 (Device | Eject not ejecting device)

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This commit is contained in:
Kovid Goyal 2012-11-07 11:00:21 +05:30
parent d5b714821e
commit 0b25ffee6c
2 changed files with 16 additions and 7 deletions
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3
src/calibre/devices/usbms/device.py
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@ -901,6 +901,9 @@ class Device(DeviceConfig, DevicePlugin):
for d in drives:
try:
winutil.eject_drive(bytes(d)[0])
except Exception as e:
try:
prints(as_unicode(e))
except:
pass

16
src/calibre/utils/windows/winutil.c
View File

@ -467,11 +467,11 @@ eject_drive_letter(WCHAR DriveLetter) {
DeviceNumber = -1;
hVolume = CreateFile(szVolumeAccessPath, 0,
hVolume = CreateFileW(szVolumeAccessPath, 0,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, NULL);
if (hVolume == INVALID_HANDLE_VALUE) {
PyErr_SetString(PyExc_ValueError, "Invalid handle value for drive letter");
PyErr_SetFromWindowsErr(0);
return FALSE;
}
@ -529,11 +529,17 @@ eject_drive_letter(WCHAR DriveLetter) {
static PyObject *
winutil_eject_drive(PyObject *self, PyObject *args) {
char DriveLetter;
char letter = '0';
WCHAR DriveLetter = L'0';
if (!PyArg_ParseTuple(args, "c", &DriveLetter)) return NULL;
if (!PyArg_ParseTuple(args, "c", &letter)) return NULL;
if (!eject_drive_letter((WCHAR)DriveLetter)) return NULL;
if (mbtowc(&DriveLetter, &letter, 1) == -1) {
PyErr_SetString(PyExc_ValueError, "Failed to convert drive letter to wchar");
return NULL;
}
if (!eject_drive_letter(DriveLetter)) return NULL;
Py_RETURN_NONE;
}