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Improve the Read-Only mounting suggestion for additional volumes. 

* Following a suggestion by BGA, even non-boot Haiku volumes will get the
  read-only popup, although with less emphasis in the wording.
* BPartition does inherit the read-only flag from it's parent device when
  not yet mounted. This is now checked and at least prevents the read-only
  popup for volumes on read-only media. If I understood everything correctly,
  there is no easy way to tell if a file system supports writing.
* Updated indentation style in the header.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27343 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus 2008-09-06 08:02:59 +00:00
parent e53fa536eb
commit 19a1d666b3
2 changed files with 101 additions and 62 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

92
src/kits/tracker/AutoMounter.cpp
View File

@ -182,8 +182,64 @@ AutoMounter::_MountVolumes(mount_mode normal, mount_mode removable,
}
bool
AutoMounter::_SuggestMountFlags(const BPartition* partition,
uint32* _flags) const
{
uint32 mountFlags = 0;
bool askReadOnly = true;
bool isBFS = false;
if (partition->ContentType() != NULL
&& strcmp(partition->ContentType(), kPartitionTypeBFS) == 0) {
#if 0
askReadOnly = false;
#endif
isBFS = true;
}
if (partition->IsReadOnly())
askReadOnly = false;
if (askReadOnly) {
// Suggest to the user to mount read-only until Haiku is more mature.
// TODO: would be nice to skip this for file systems which don't have
// support for writing anyways.
BString string;
// TODO: Use distro name instead of "Haiku"...
if (!isBFS) {
string << "The file system on this volume is not the Haiku file "
"system. It is strongly suggested to mount it in read-only "
"mode. ";
} else {
string << "It is suggested to mount all additional Haiku volumes "
"in read-only mode. ";
}
string << "This will prevent unintentional data loss because of "
"errors in Haiku.";
BAlert* alert = new BAlert("Mount Warning", string.String(),
"Mount Read/Write", "Cancel", "Mount Read-only",
B_WIDTH_FROM_WIDEST, B_WARNING_ALERT);
int32 choice = alert->Go();
switch (choice) {
case 0:
break;
case 1:
return false;
case 2:
mountFlags |= B_MOUNT_READ_ONLY;
break;
}
}
*_flags = mountFlags;
return true;
}
void
AutoMounter::_MountVolume(BMessage *message)
AutoMounter::_MountVolume(const BMessage* message)
{
int32 id;
if (message->FindInt32("id", &id) != B_OK)
@ -195,33 +251,9 @@ AutoMounter::_MountVolume(BMessage *message)
if (roster.GetPartitionWithID(id, &device, &partition) != B_OK)
return;
uint32 mountFlags = 0;
if (partition->ContentType() == NULL
|| strcmp(partition->ContentType(), kPartitionTypeBFS) != 0) {
// not a BFS volume, suggest to the user to mount read-only
// until Haiku is more mature.
// TODO: would be nice to skip this for file systems which don't have
// support for writing anyways.
BString string;
// TODO: Use distro name instead of "Haiku"...
string << "The file system on this volume is not the Haiku file "
"system. It is strongly suggested to mount it in read-only mode."
"This will prevent unintentional data loss because of errors "
"in Haiku.";
BAlert* alert = new BAlert("Mount Warning", string.String(),
"Mount Read/Write", "Cancel", "Mount Read-only",
B_WIDTH_FROM_WIDEST, B_WARNING_ALERT);
int32 choice = alert->Go();
switch (choice) {
case 0:
break;
case 1:
return;
case 2:
mountFlags |= B_MOUNT_READ_ONLY;
break;
}
}
uint32 mountFlags;
if (!_SuggestMountFlags(partition, &mountFlags))
return;
status_t status = partition->Mount(NULL, mountFlags);
if (status < B_OK) {
@ -237,7 +269,7 @@ AutoMounter::_SuggestForceUnmount(const char* name, status_t error)
{
BString text;
text << "Could not unmount disk \"" << name << "\":\n\t" << strerror(error);
text << "\n\nShould I force unmounting the disk?\n\n"
text << "\n\nShould unmounting be forced?\n\n"
"Note: if an application is currently writing to the volume, unmounting"
" it now might result in loss of data.\n";
@ -510,7 +542,7 @@ AutoMounter::GetSettings(BMessage *message)
void
AutoMounter::MessageReceived(BMessage *message)
AutoMounter::MessageReceived(BMessage* message)
{
switch (message->what) {
case kMsgInitialScan:

71
src/kits/tracker/AutoMounter.h
View File

@ -57,49 +57,56 @@ const uint32 kVolumeMounted = 'vmtd';
// #pragma mark - Haiku Disk Device API
class AutoMounter : public BLooper {
public:
AutoMounter();
virtual ~AutoMounter();
public:
AutoMounter();
virtual ~AutoMounter();
virtual bool QuitRequested();
virtual bool QuitRequested();
void GetSettings(BMessage* message);
void GetSettings(BMessage* message);
private:
enum mount_mode {
kNoVolumes,
kOnlyBFSVolumes,
kAllVolumes,
kRestorePreviousVolumes
};
private:
enum mount_mode {
kNoVolumes,
kOnlyBFSVolumes,
kAllVolumes,
kRestorePreviousVolumes
};
void _MountVolumes(mount_mode normal, mount_mode removable,
bool initialRescan);
void _MountVolume(BMessage* message);
bool _SuggestForceUnmount(const char* name, status_t error);
void _ReportUnmountError(const char* name, status_t error);
void _UnmountAndEjectVolume(BPartition* partition, BPath& mountPoint,
const char* name);
void _UnmountAndEjectVolume(BMessage* message);
bool _SuggestMountFlags(const BPartition* partition,
uint32* _flags) const;
void _MountVolumes(mount_mode normal,
mount_mode removable, bool initialRescan);
void _MountVolume(const BMessage* message);
bool _SuggestForceUnmount(const char* name,
status_t error);
void _ReportUnmountError(const char* name,
status_t error);
void _UnmountAndEjectVolume(BPartition* partition,
BPath& mountPoint, const char* name);
void _UnmountAndEjectVolume(BMessage* message);
void _FromMode(mount_mode mode, bool& all, bool& bfs, bool& restore);
mount_mode _ToMode(bool all, bool bfs, bool restore = false);
void _UpdateSettingsFromMessage(BMessage* message);
void _ReadSettings();
void _WriteSettings();
void _FromMode(mount_mode mode, bool& all,
bool& bfs, bool& restore);
mount_mode _ToMode(bool all, bool bfs,
bool restore = false);
virtual void MessageReceived(BMessage* message);
void _UpdateSettingsFromMessage(BMessage* message);
void _ReadSettings();
void _WriteSettings();
private:
mount_mode fNormalMode;
mount_mode fRemovableMode;
virtual void MessageReceived(BMessage* message);
BFile fPrefsFile;
BMessage fSettings;
private:
mount_mode fNormalMode;
mount_mode fRemovableMode;
BFile fPrefsFile;
BMessage fSettings;
};
#else // !__HAIKU__
// #pragma mark - R5 DeviceMap API
// #pragma mark - R5 DeviceMap API
const uint32 kSuspendAutomounter = 'amsp';
const uint32 kResumeAutomounter = 'amsr';