* Added ShadowPartitionChanged() to KDiskSystem and respective hooks

to the module interfaces. So the disk system will be informed, when a
  shadow partition has changed and it is allowed to do necessary
  adjustions (e.g. adjusting the cookie, the parameters, or on
  partitioning system initialization even creating special child
  partitions (apple partitioning system)).
* Added `int32 *index' parameter to ValidateCreateChild(). So the
  partitioning system can report at which index the new child shall be
  inserted.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4065 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/core/disk_device_manager/KDiskSystem.cpp

@@ -389,7 +389,7 @@ KDiskSystem::ValidateInitialize(KPartition *partition, char *name,
 bool
 KDiskSystem::ValidateCreateChild(KPartition *partition, off_t *start,
 								 off_t *size, const char *type,
-								 const char *parameters)
+								 const char *parameters, int32 *index)
 {
 	// to be implemented by derived classes
 	return false;
@@ -422,6 +422,14 @@ KDiskSystem::GetNextSupportedType(KPartition *partition, int32 *cookie,
 	return B_ENTRY_NOT_FOUND;
 }
 
+// ShadowPartitionChanged
+status_t
+KDiskSystem::ShadowPartitionChanged(KPartition *partition, uint32 operation)
+{
+	// to be implemented by derived classes
+	return B_ENTRY_NOT_FOUND;
+}
+
 // GetTypeForContentType
 status_t
 KDiskSystem::GetTypeForContentType(const char *contentType, char *type)

src/kernel/core/disk_device_manager/KFileSystem.cpp

@@ -235,6 +235,21 @@ KFileSystem::ValidateInitialize(KPartition *partition, char *name,
 											parameters));
 }
 
+// ShadowPartitionChanged
+status_t
+KFileSystem::ShadowPartitionChanged(KPartition *partition, uint32 operation)
+{
+	if (!partition)
+		return B_BAD_VALUE;
+	if (!fModule)
+		return B_ERROR;
+	// If not implemented, we assume, that the file system doesn't have to
+	// make any additional changes.
+	if (!fModule->shadow_changed)
+		return B_OK;
+	return fModule->shadow_changed(partition->PartitionData(), operation);
+}
+
 // Defragment
 status_t
 KFileSystem::Defragment(KPartition *partition, KDiskDeviceJob *job)

src/kernel/core/disk_device_manager/KPartitioningSystem.cpp

@@ -386,13 +386,17 @@ KPartitioningSystem::ValidateInitialize(KPartition *partition, char *name,
 bool
 KPartitioningSystem::ValidateCreateChild(KPartition *partition, off_t *start,
 										 off_t *size, const char *type,
-										 const char *parameters)
+										 const char *parameters, int32 *index)
 {
+	int32 _index = 0;
+	if (!index)
+		index = &_index;
 	return (partition && start && size && type
 			&& partition->DiskSystem() == this && fModule
 			&& fModule->validate_create_child
 			&& fModule->validate_create_child(partition->PartitionData(),
-											  start, size, type, parameters));
+											  start, size, type, parameters,
+											  index));
 }
 
 // CountPartitionableSpaces
@@ -455,6 +459,22 @@ KPartitioningSystem::GetTypeForContentType(const char *contentType, char *type)
 	return fModule->get_type_for_content_type(contentType, type);
 }
 
+// ShadowPartitionChanged
+status_t
+KPartitioningSystem::ShadowPartitionChanged(KPartition *partition,
+											uint32 operation)
+{
+	if (!partition)
+		return B_BAD_VALUE;
+	if (!fModule)
+		return B_ERROR;
+	// If not implemented, we assume, that the partitioning system doesn't
+	// have to make any additional changes.
+	if (!fModule->shadow_changed)
+		return B_OK;
+	return fModule->shadow_changed(partition->PartitionData(), operation);
+}
+
 // Repair
 status_t
 KPartitioningSystem::Repair(KPartition *partition, bool checkOnly,