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Added a KPartition listener mechanism and made use of it to keep shadow partitions with the corresponding physical ones in sync.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4848 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2003-09-28 22:04:13 +00:00
parent 373c8e3751
commit 58bdbab626
6 changed files with 779 additions and 39 deletions
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headers/private/kernel/disk_device_manager/KPartition.h
+31 -2
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@@ -3,10 +3,9 @@
#ifndef _K_DISK_DEVICE_PARTITION_H
#define _K_DISK_DEVICE_PARTITION_H
#include <disk_device_manager.h>
#include <Vector.h>
#include "disk_device_manager.h"
struct user_partition_data;
namespace BPrivate {
@@ -16,6 +15,7 @@ class UserDataWriter;
class KDiskDevice;
class KDiskSystem;
class KPartitionListener;
class KPartitionVisitor;
class KPhysicalPartition;
class KShadowPartition;
@@ -164,6 +164,11 @@ public:
void SetContentCookie(void *cookie);
void *ContentCookie() const;
// Listener Support
bool AddListener(KPartitionListener *listener);
bool RemoveListener(KPartitionListener *listener);
// Change Tracking
void Changed(uint32 flags, uint32 clearFlags = 0);
@@ -181,18 +186,42 @@ public:
virtual void Dump(bool deep, int32 level);
protected:
void FireOffsetChanged(off_t offset);
void FireSizeChanged(off_t size);
void FireContentSizeChanged(off_t size);
void FireBlockSizeChanged(uint32 blockSize);
void FireIndexChanged(int32 index);
void FireStatusChanged(uint32 status);
void FireFlagsChanged(uint32 flags);
void FireNameChanged(const char *name);
void FireContentNameChanged(const char *name);
void FireTypeChanged(const char *type);
void FireIDChanged(partition_id id);
void FireVolumeIDChanged(dev_t volumeID);
void FireMountCookieChanged(void *cookie);
void FireParametersChanged(const char *parameters);
void FireContentParametersChanged(const char *parameters);
void FireChildAdded(KPartition *child, int32 index);
void FireChildRemoved(KPartition *child, int32 index);
void FireDiskSystemChanged(KDiskSystem *diskSystem);
void FireCookieChanged(void *cookie);
void FireContentCookieChanged(void *cookie);
private:
void _UpdateChildIndices(int32 index);
static int32 _NextID();
protected:
typedef Vector<KPartition*> PartitionVector;
struct ListenerSet;
partition_data fPartitionData;
PartitionVector fChildren;
KDiskDevice *fDevice;
KPartition *fParent;
KDiskSystem *fDiskSystem;
ListenerSet *fListeners;
uint32 fChangeFlags;
int32 fChangeCounter;
uint32 fAlgorithmData;
headers/private/kernel/disk_device_manager/KPartitionListener.h
+51
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@@ -0,0 +1,51 @@
// KPartitionListener.h
#ifndef _K_DISK_DEVICE_PARTITION_LISTENER_H
#define _K_DISK_DEVICE_PARTITION_LISTENER_H
#include "disk_device_manager.h"
namespace BPrivate {
namespace DiskDevice {
class KDiskSystem;
class KPartition;
class KPartitionListener {
public:
KPartitionListener();
virtual ~KPartitionListener();
virtual void OffsetChanged(KPartition *partition, off_t offset);
virtual void SizeChanged(KPartition *partition, off_t size);
virtual void ContentSizeChanged(KPartition *partition, off_t size);
virtual void BlockSizeChanged(KPartition *partition, uint32 blockSize);
virtual void IndexChanged(KPartition *partition, int32 index);
virtual void StatusChanged(KPartition *partition, uint32 status);
virtual void FlagsChanged(KPartition *partition, uint32 flags);
virtual void NameChanged(KPartition *partition, const char *name);
virtual void ContentNameChanged(KPartition *partition, const char *name);
virtual void TypeChanged(KPartition *partition, const char *type);
virtual void IDChanged(KPartition *partition, partition_id id);
virtual void VolumeIDChanged(KPartition *partition, dev_t volumeID);
virtual void MountCookieChanged(KPartition *partition, void *cookie);
virtual void ParametersChanged(KPartition *partition,
const char *parameters);
virtual void ContentParametersChanged(KPartition *partition,
const char *parameters);
virtual void ChildAdded(KPartition *partition, KPartition *child,
int32 index);
virtual void ChildRemoved(KPartition *partition, KPartition *child,
int32 index);
virtual void DiskSystemChanged(KPartition *partition,
KDiskSystem *diskSystem);
virtual void CookieChanged(KPartition *partition, void *cookie);
virtual void ContentCookieChanged(KPartition *partition, void *cookie);
};
} // namespace DiskDevice
} // namespace BPrivate
using BPrivate::DiskDevice::KPartitionListener;
#endif // _K_DISK_DEVICE_PARTITION_LISTENER_H
headers/private/kernel/disk_device_manager/KShadowPartition.h
+32 -3
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@@ -3,14 +3,15 @@
#ifndef _K_DISK_DEVICE_SHADOW_PARTITION_H
#define _K_DISK_DEVICE_SHADOW_PARTITION_H
#include "KPartition.h"
#include <KPartition.h>
#include <KPartitionListener.h>
namespace BPrivate {
namespace DiskDevice {
class KPhysicalPartition;
class KShadowPartition : public KPartition {
class KShadowPartition : public KPartition, private KPartitionListener {
public:
KShadowPartition(KPhysicalPartition *physicalPartition);
virtual ~KShadowPartition();
@@ -34,8 +35,36 @@ public:
virtual void Dump(bool deep, int32 level);
protected:
private:
virtual void OffsetChanged(KPartition *partition, off_t offset);
virtual void SizeChanged(KPartition *partition, off_t size);
virtual void ContentSizeChanged(KPartition *partition, off_t size);
virtual void BlockSizeChanged(KPartition *partition, uint32 blockSize);
virtual void IndexChanged(KPartition *partition, int32 index);
virtual void StatusChanged(KPartition *partition, uint32 status);
virtual void FlagsChanged(KPartition *partition, uint32 flags);
virtual void NameChanged(KPartition *partition, const char *name);
virtual void ContentNameChanged(KPartition *partition, const char *name);
virtual void TypeChanged(KPartition *partition, const char *type);
virtual void IDChanged(KPartition *partition, partition_id id);
virtual void VolumeIDChanged(KPartition *partition, dev_t volumeID);
virtual void MountCookieChanged(KPartition *partition, void *cookie);
virtual void ParametersChanged(KPartition *partition,
const char *parameters);
virtual void ContentParametersChanged(KPartition *partition,
const char *parameters);
virtual void ChildAdded(KPartition *partition, KPartition *child,
int32 index);
virtual void ChildRemoved(KPartition *partition, KPartition *child,
int32 index);
virtual void DiskSystemChanged(KPartition *partition,
KDiskSystem *diskSystem);
virtual void CookieChanged(KPartition *partition, void *cookie);
virtual void ContentCookieChanged(KPartition *partition, void *cookie);
private:
KPhysicalPartition *fPhysicalPartition;
};
} // namespace DiskDevice