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* Got rid of the B_PARTITION_DESCENDANT_BUSY flag.

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* Added CheckAndMarkBusy() and UnmarkBusy() methods to KPartition.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@22801 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold
2007-11-02 00:29:46 +00:00
parent 8354dac78e
commit 53715fe060
6 changed files with 59 additions and 33 deletions
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src/system/kernel/disk_device_manager/KPartition.cpp
+53 -12
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@@ -58,7 +58,7 @@ KPartition::KPartition(partition_id id)
fPartitionData.child_count = 0;
fPartitionData.index = -1;
fPartitionData.status = B_PARTITION_UNRECOGNIZED;
fPartitionData.flags = B_PARTITION_BUSY | B_PARTITION_DESCENDANT_BUSY;
fPartitionData.flags = B_PARTITION_BUSY;
fPartitionData.volume = -1;
fPartitionData.mount_cookie = NULL;
fPartitionData.name = NULL;
@@ -238,6 +238,7 @@ KPartition::SetBusy(bool busy)
ClearFlags(B_PARTITION_BUSY);
}
// IsBusy
bool
KPartition::IsBusy() const
@@ -245,23 +246,63 @@ KPartition::IsBusy() const
return (fPartitionData.flags & B_PARTITION_BUSY);
}
// SetDescendantBusy
void
KPartition::SetDescendantBusy(bool busy)
// CheckAndMarkBusy
bool
KPartition::CheckAndMarkBusy(bool includeDescendants)
{
if (busy)
SetFlags(B_PARTITION_DESCENDANT_BUSY);
else
ClearFlags(B_PARTITION_DESCENDANT_BUSY);
if (includeDescendants) {
// check
struct IsBusyVisitor : KPartitionVisitor {
virtual bool VisitPre(KPartition* partition)
{
return partition->IsBusy();
}
} checkVisitor;
if (VisitEachDescendant(&checkVisitor))
return false;
// mark busy
struct MarkBusyVisitor : KPartitionVisitor {
virtual bool VisitPre(KPartition* partition)
{
partition->AddFlags(B_PARTITION_BUSY);
return false;
}
} markVisitor;
VisitEachDescendant(&markVisitor);
} else {
if (IsBusy())
return false;
SetBusy(true);
}
return true;
}
// IsDescendantBusy
bool
KPartition::IsDescendantBusy() const
// UnmarkBusy
void
KPartition::UnmarkBusy(bool includeDescendants)
{
return (fPartitionData.flags & B_PARTITION_DESCENDANT_BUSY);
if (includeDescendants) {
struct UnmarkBusyVisitor : KPartitionVisitor {
virtual bool VisitPre(KPartition* partition)
{
partition->ClearFlags(B_PARTITION_BUSY);
return false;
}
} visitor;
VisitEachDescendant(&visitor);
} else
SetBusy(false);
}
// SetOffset
void
KPartition::SetOffset(off_t offset)