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Now can also retrieve the size of a disk device.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6619 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2004-02-18 02:05:31 +00:00
parent 91a3abc0dc
commit 04d3a3dedf
1 changed files with 27 additions and 6 deletions

33
src/apps/diskprobe/DataEditor.cpp

@ -8,8 +8,10 @@
#include <Autolock.h>
#include <NodeMonitor.h>
#include <Drivers.h>
#include <string.h>
#include <unistd.h>
class DataChange {
@ -203,11 +205,31 @@ DataEditor::SetTo(BEntry &entry, const char *attribute)
fFile.GetStat(&stat);
fIsDevice = (stat.st_mode & (S_IFBLK | S_IFCHR)) != 0;
// ToDo: add support for devices and attributes!
status = fFile.GetSize(&fSize);
if (status < B_OK) {
fFile.Unset();
return status;
fBlockSize = 512;
if (fIsDevice) {
// ToDo: is there any other possibility to issue a ioctl() from a BFile?
device_geometry geometry;
int device = fFile.Dup();
if (device < 0 || ioctl(device, B_GET_GEOMETRY, &geometry) < 0) {
if (device >= 0)
close(device);
fFile.Unset();
return B_ERROR;
}
close(device);
fSize = geometry.head_count * geometry.cylinder_count * geometry.sectors_per_track;
fBlockSize = geometry.bytes_per_sector;
} else if (IsAttribute()) {
// ToDo: add support for attributes!
fSize = 0;
} else {
status = fFile.GetSize(&fSize);
if (status < B_OK) {
fFile.Unset();
return status;
}
}
if (attribute != NULL)
@ -216,7 +238,6 @@ DataEditor::SetTo(BEntry &entry, const char *attribute)
fAttribute = NULL;
fView = NULL;
fBlockSize = 512;
fRealViewOffset = 0;
fViewOffset = 0;
fRealViewSize = fViewSize = fBlockSize;