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Implemented Resize() and ResizeChild().

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4869 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2003-09-29 21:44:21 +00:00
parent 77fe5e61a5
commit b0814f61c3
1 changed files with 61 additions and 8 deletions
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69
src/kernel/core/disk_device_manager/KPartitioningSystem.cpp
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@ -4,10 +4,13 @@
#include <stdlib.h>
#include <unistd.h>
#include "ddm_modules.h"
#include "KDiskDeviceUtils.h"
#include "KPartition.h"
#include "KPartitioningSystem.h"
#include <ddm_modules.h>
#include <KDiskDevice.h>
#include <KDiskDeviceJob.h>
#include <KDiskDeviceManager.h>
#include <KDiskDeviceUtils.h>
#include <KPartition.h>
#include <KPartitioningSystem.h>
// constructor
KPartitioningSystem::KPartitioningSystem(const char *name)
@ -489,8 +492,32 @@ status_t
KPartitioningSystem::Resize(KPartition *partition, off_t size,
KDiskDeviceJob *job)
{
// to be implemented
return B_ERROR;
// check parameters
if (!partition || !job || size < 0)
return B_BAD_VALUE;
if (!fModule->resize)
return B_ENTRY_NOT_FOUND;
// lock partition and open partition device
KDiskDeviceManager *manager = KDiskDeviceManager::Default();
KPartition *_partition = manager->ReadLockPartition(partition->ID());
if (!_partition)
return B_ERROR;
int fd = -1;
{
PartitionRegistrar registrar(_partition, true);
PartitionRegistrar deviceRegistrar(_partition->Device(), true);
DeviceReadLocker locker(_partition->Device(), true);
if (partition != _partition)
return B_ERROR;
status_t result = partition->Open(O_RDONLY, &fd);
if (result != B_OK)
return result;
}
// let the module do its job
status_t result = fModule->resize(fd, partition->ID(), size, job->ID());
// cleanup and return
close(fd);
return result;
}
// ResizeChild
@ -498,8 +525,34 @@ status_t
KPartitioningSystem::ResizeChild(KPartition *child, off_t size,
KDiskDeviceJob *job)
{
// to be implemented
return B_ERROR;
// check parameters
if (!child || !job || size < 0)
return B_BAD_VALUE;
if (!fModule->resize_child)
return B_ENTRY_NOT_FOUND;
// lock partition and open (parent) partition device
KDiskDeviceManager *manager = KDiskDeviceManager::Default();
KPartition *_partition = manager->ReadLockPartition(child->ID());
if (!_partition)
return B_ERROR;
int fd = -1;
{
PartitionRegistrar registrar(_partition, true);
PartitionRegistrar deviceRegistrar(_partition->Device(), true);
DeviceReadLocker locker(_partition->Device(), true);
if (child != _partition)
return B_ERROR;
if (!child->Parent())
return B_BAD_VALUE;
status_t result = child->Parent()->Open(O_RDONLY, &fd);
if (result != B_OK)
return result;
}
// let the module do its job
status_t result = fModule->resize_child(fd, child->ID(), size, job->ID());
// cleanup and return
close(fd);
return result;
}
// Move